Acquisition_Information Information describing configuration under which data were acquired, including satellite and solar position and time correction. Type: compound Optional Not repeatable Parent: Data_Quality_Information Acquisition_Information = Satellite/Local_Zenith_Angle + Satellite/Local_Azimuth_Angle + Solar_Zenith_Angle + Solar_Azimuth_Angle + 0{Relative_Azimuth}1 + Clock_Time/Drift + Ascending/Descending_Indicator + (Nadir) Aerial_Film_Speed Two-thirds of the exposure in lux seconds at the point on the characteristic curve where the density is 0.3 above fog density, under processing conditions defined in ANSI PH2.34-1969. Type: real Domain: Aerial_Film_Speed > 0.0 Optional Not repeatable Parent: Frame_Hardware Aerotriangulation_Reference Reference containing information describing photogrammetric triangulation using aerial images. Type: compound Optional Repeatable Parent: Georeferenceable_Raster Aerotriangulation_Reference = Citation_Information Affine_Distortion_X_Prime_Coefficient Coefficient of x' term in the formula given in the definition of Distortion_Type_Affine. Type: real Domain: free real Mandatory Not repeatable Parent: Distortion_Type_Affine Affine_Distortion_Y_Prime_Coefficient Coefficient of y' term in the formula given in the definition of Distortion_Type_Affine. Type: real Domain: free real Mandatory Not repeatable Parent: Distortion_Type_Affine Aggregation_Criteria Criteria by which components of a dataset are chosen for inclusion. Type: text Domain: free text Mandatory Repeatable Parent: Component_Information Aggregation_Information Information relating a dataset to collections of which it is a component or relating a collection dataset to its components, as described in the section on Data Aggregation Technology. Type: compound Optional Repeatable Parent: Identification_Information Aggregation_Information = (1{Container_Packet_ID}n) + 0{Component_Information}1 Aggregation_Member_ID Identifier of component of a dataset. Type: compound Mandatory Repeatable Parent: Component_Information Aggregation_Member_ID = Dataset_Identifier Algorithm_Change_Description Information included with dataset describing modifications of the algorithm in its development from version to version. Type: compound Conditional - present and mandatory if and only if Algorithm_Change_Reference is absent Not repeatable Parent: Algorithm_Change_History Algorithm_Change_Description = 1{Process_Step}n Algorithm_Change_History Description of the modifications of the algorithm in its development from version to version. Type: compound Mandatory Repeatable Parent: Algorithm_Information Algorithm_Change_History = [Algorithm_Change_Description | Algorithm_Change_Reference] Algorithm_Change_Reference Reference to document describing modifications of the algorithm in its development from version to version. Type: compound Conditional - present and mandatory if and only if Algorithm_Change_Description is absent Not repeatable Parent: Algorithm_Change_History Algorithm_Change_Reference = Citation_Information Algorithm_Description Kinds of material providing a description of the algorithm used to generate the data. Type: compound Mandatory Not repeatable Parent: Algorithm_Information Algorithm_Description = [Algorithm_Text_Description | Algorithm_Reference] Algorithm_Identifiers Information identifying the algorithm and version or date. Type: compound Mandatory Not repeatable Parent: Algorithm_Information Algorithm_Identifiers = Citation_Information Algorithm_Information Details of the methodology by which geographic information was derived from the instrument readings. Type: compound Optional Not repeatable Parent: Process_Step Algorithm_Information = Algorithm_Identifiers + Algorithm_Description + 1{Algorithm_Change_History}n + (1{Algorithm_Peer_Review_Information}n) Algorithm_Peer_Review_Description Description accompanying dataset, including dates, of peer review of the algorithm for purposes of ensuring its quality. Type: compound Conditional - present and mandatory if and only if Algorithm_Peer_Review_Reference is absent Not repeatable Parent: Algorithm_Peer_Review_Information Algorithm_Peer_Review_Description = [1{Process_Step}n Algorithm_Peer_Review_Information Description, including dates, of peer review of the algorithm for purposes of ensuring its quality. Type: compound Optional Repeatable Parent: Algorithm_Information Algorithm_Peer_Review_Information = [Algorithm_Peer_Review_Description | Algorithm_Peer_Review_Reference] Algorithm_Peer_Review_Reference Reference to document describing peer review of the algorithm for purposes of ensuring its quality, including dates. Type: compound Conditional - present and mandatory if and only if Algorithm_Peer_Review_Description is absent Not repeatable Parent: Algorithm_Peer_Review_Information Algorithm_Peer_Review_Reference = Citation_Information Algorithm_Reference Reference to document containing description of algorithm. Type: compound Conditional - present and mandatory if and only if Algorithm_Text_Description is absent Not repeatable Parent: Algorithm_Description Algorithm_Reference = Citation_Information Algorithm_Text_Description Text description of algorithm used to generate the data. Type: text Domain: free text Conditional - present and mandatory if and only if Algorithm_Reference is absent Not repeatable Parent: Algorithm_Description Altitude_Distance_Layer System of atmospheric levels in which altitudes are recorded. Type: text Domain: millibars theta value cloud layer atmosphere layer free text Conditional - present and mandatory if and only if Altitude_Distance_Units is absent Not repeatable Parent: Altitude_System_Definition Ancillary_Dataset Data other than input required to process the input data. Type: compound Mandatory Repeatable Parent: Processing_Information Ancillary_Dataset = 0{Ancillary_Dataset_Identifier}1 + [Ancillary_Description | Ancillary_Reference] Ancillary_Dataset_Description Description of ancillary datasets for processing. Type: text Domain: free text Mandatory Not repeatable Parent: Ancillary_Description Ancillary_Dataset_Identifier Unique identifier for ancillary dataset. Type: compound Mandatory-if-applicable Not repeatable Parent: Ancillary_Dataset Ancillary_Dataset_Identifier = Dataset_Identifier Ancillary_Description Description of ancillary data and descriptive parameters used in processing step. Type: compound Conditional - present and mandatory if and only if Ancillary_Reference is absent Not repeatable Parent: Ancillary_Dataset Ancillary_Description = Ancillary_Dataset_Description + 0{Command_Line_Processing_Parameter}n Ancillary_Reference Reference to document describing ancillary data. Type: compound Conditional - present and mandatory if and only if Ancillary_Description is absent Not repeatable Parent: Ancillary_Dataset Ancillary_Reference = Citation_Information Angle_Dependent_Distortion Lens distortion values provided as a function of the angle from the optical axis. Type: compound Conditional - present and mandatory if and only if Distance_Dependent_Distortion and Radial_Symmetrical_Distortion_Polynomial are absent Not repeatable Parent: Distortion_Type_Radial_Symmetrical Angle_Dependent_Distortion = Radial_Symmetrical_Angle_Interval + Number_of_Angle_Distortion_Values + 1{Angle_Distortion_Value}n Angle_Distortion_Value Value of distortion at one of the angular distances specified by Radial_Symmetrical_Measurement_Angle, given in micrometers. Type: real Domain: free real Mandatory Repeatable Parent: Angle_Dependent_Distortion Area_Weighted_Average_Resolution Area weighted average resolution, given in line pairs per millimeter. Type: real Domain: Area_Weighted_Average_Resolution > 0.0 Optional Not repeatable Parent: Photographic_Resolving_Power Argument_of_Perigee The angle between the ascending node and perigee, measured from the ascending node in the direction of the platform's motion along the plane of the orbit, in units given by Orbit_Angle_Units. Type: real Domain: 0.0 <= Argument_of_Perigee < 360.0 Mandatory Not repeatable Parent: Keplerian_Orbit Ascending/Descending_Indicator Flag indicating whether satellite is moving northward or southward. ( Note: 0 represents ascending or northward; 1 represents descending or southward.) Type: text Domain: 0 1 Mandatory Not repeatable Parent: Acquisition_Information Attitude_Angular_Units Units of angular measure in which Roll, Pitch, and Yaw are expressed. Type: text Domain: degrees radians free text Mandatory Not repeatable Parent: Positional_Information Availability_of_Element_Locations Whether or not a reference providing sensor element location exists. Type: text Domain: available not available Mandatory Not repeatable Parent: Sensor_Element_Location Axes Orientation of instrument axes. Type: compound Mandatory Not repeatable Parent: Sensor_Orientation Axes = X_Axis_Definition + Y_Axis_Definition + Z_Axis_Definition Axis_Rotation_Convention Description of whether the coordinate system axes are rotated or remain fixed with each step of application of the rotation matrix. Type: text Domain: rotated fixed Mandatory Not repeatable Parent: Instrument_Specific_Georeferencing Band_Boundary_Definition Designation of criterion for defining maximum and minimum wavelengths for a spectral band. Type: text Domain: 3db half maximum 50 % 1/e equivalent width free text Optional Not repeatable Parent: Wavelength_Band_Properties Band_Description Additional descriptive material about band properties. Type: text Domain: free text Optional Not repeatable Parent: Wavelength_Band_Properties Band_ID Designation for individual measurement band. Type: text Domain: free text Mandatory Not repeatable Parent: Individual_Band_Identification Band_Identification Complete information to identify instrument wavelengths or other channels. Type: compound Conditional - present and mandatory if and only if Thematic_Layer_Identification is absent Not repeatable Parent: Identification_Information Band_Identification = Number_of_Bands + 0{Individual_Band_Identification}n Band_Measurement_Mode_ID Identifier designating channel, wavelength, and/or field of view of measurement. Type: text Domain: free text Mandatory Not repeatable Parent: Individual_Band_Identification Band_Quality Description of state of band, including degree of degradation and impact on resolution and measurement accuracy. Type: text Domain: free text Optional Not repeatable Parent: Wavelength_Band_Properties Calibrated_Detector_Positions Position of detectors in sensor grid coordinate system. Type: compound Mandatory Not repeatable Parent: Sensor_System Calibrated_Detector_Positions = Location_Information Calibrated_Focal_Length Approximate distance between the projection center and the image plane in millimeters, measured in the laboratory before launch. Type: real Domain: Calibrated_Focal_Length > 0.0 Mandatory Not repeatable Parent: Frame_Optics Camera_Identifier Manufacturer's unique alphanumeric code specifying the camera body. Type: text Domain: free text Optional Not repeatable Parent: Frame_Hardware Camera_Type Model of camera as defined by manufacturer. (RMK camera types are manufactured by Zeiss Oberkochen, MRB and LMK Camera types by Zeiss Jena, RC8-RC10A by Wild, RC20 by Leica, and RC30 by Leica/LH systems) Type: text Domain: RMK 60/25 RMK 30/23 RMK 15/23 RMK 11.5/18 RMK 15/23 RMK 8.5/23 RMK TOP 15 RMK TOP 30 MRB 30/2323 MRB 21 MRB 15/2323 MRB 9/2323 LMK LMK1000 LMK1009 LMK1015 LMK1021 LMK1030 LMK2000 LMK2009 LMK2015 LMK2021 LMK2030 RC 8 RC 9 RC 10 RC 10A RC 20 RC 30 free text Optional Not repeatable Parent: Frame_Hardware Cell_Value_Type Bit representation of data value in raster cell. Type: text Domain: unsigned eight-bit integer signed eight-bit integer big endian unsigned sixteen-bit integer big endian signed sixteen-bit integer little endian unsigned sixteen-bit integer little endian signed sixteen-bit integer big endian unsigned thirty-two bit integer big endian signed thirty-two bit integer little-endian unsigned thirty-two bit integer little endian signed thirty-two bit integer big endian single precision IEEE floating point big endian double precision IEEE floating point little endian single precision IEEE floating point little endian double precision IEEE floating point free text Mandatory Not repeatable Parent: Raster_Object_Information Clock_Time/Drift Error from GMT, needed to correct the time tag for scan data, in milliseconds. Type: real Domain: -75.0 <= Clock_Time/Drift <= 75.0 Mandatory Not repeatable Parent: Acquisition_Information Collection_Type The way in which the instrument gathers data from the scene observed. Type: text Domain: frame pushbroom whiskbroom panoramic radar laser free text Mandatory Not repeatable Parent: Instrument_Description Column_Delta_X Increment xn in map x-coordinates corresponding to increment of one grid column; a negative value means that map x-coordinate decreases with increasing column number. Type: real Domain: free real Mandatory Not repeatable Parent: Grid_Orientation Column_Delta_Y Increment yn in map y-coordinates corresponding to increment of one grid column; a negative value means that map y-coordinate decreases with increasing column number. Type: real Domain: free real Mandatory Not repeatable Parent: Grid_Orientation Command_Line_Processing_Parameter Parameters to control processing operations, entered at run time. Type: text Domain: free text Mandatory-if-applicable Repeatable Parent: Ancillary_Description Component_Information Information about components aggregated into the dataset. Type: compound Mandatory-if-applicable Not repeatable Parent: Aggregation_Information Component_Information = 1{Aggregation_Member_ID}n + 1{Aggregation_Criteria}n Container_Packet_ID Identifier of an aggregation of which the dataset is a member. Type: compound Optional Repeatable Parent: Aggregation_Information Container_Packet_ID = Dataset_Identifier Control_Point_Authority Contact who can supply ground control point coordinates given identifier. Type: compound Mandatory Not repeatable Parent: Control_Point_Identification Control_Point_Authority = Contact_Information Control_Point_Column Value of column coordinate at ground control point position in raster grid. Type: real Domain: Control_Point_Column >= 0.0 Mandatory Not repeatable Parent: Control_Point_Raster_Position Control_Point_Earth_Location Geographic or map location of ground control point. Type: compound Conditional - present and mandatory if and only if value of Ground_Control_Point_Organization is "location" Not repeatable Parent: Ground_Control_Point_Position Control_Point_Earth_Location = Control_Point_x_Value + Control_Point_y_Value + (Control_Point_z_Value) Control_Point_Horizontal_X_Accuracy A priori standard deviation of the horizontal coordinates of the ground control point, in coordinate units specified under Horizontal_Coordinate_System_Definition. Type: real Domain: Control_Point_Horizontal_X_Accuracy >= 0.0 Optional Not repeatable Parent: Ground_Control_Point_Description Control_Point_Horizontal_Y_Accuracy A priori standard deviation of the horizontal coordinates of the ground control point, in coordinate units specified under Horizontal_Coordinate_System_Definition. Type: real Domain: Control_Point_Horizontal_Y_Accuracy >= 0.0 Optional Not repeatable Parent: Ground_Control_Point_Description Control_Point_ID Identifier assigned to control point in library. Type: text Domain: free text Mandatory Not repeatable Parent: Control_Point_Identification Control_Point_Identification Information allowing the user to find the location of a control point from a catalogue. Type: compound Conditional - present and mandatory if and only if value of Ground_Control_Point_Organization is "library" Not repeatable Parent: Ground_Control_Point_Position Control_Point_Identification = Control_Point_ID + Control_Point_Authority Control_Point_Origin The source of the ground control point measurement. Type: text Domain: terrestrial global positioning system aerotriangulation tie point free text Optional Not repeatable Parent: Ground_Control_Point_Description Control_Point_Raster_Position Position in raster array of individual ground control point used in geolocating data. Type: compound Mandatory Not repeatable Parent: Ground_Control_Point_Position Control_Point_Raster_Position = Control_Point_Row + Control_Point_Column Control_Point_Row Value of row coordinate at ground control point position in raster grid. Type: real Domain: Control_Point_Row >= 0.0 Mandatory Not repeatable Parent: Control_Point_Raster_Position Control_Point_Type Direction or directions for which control point provides georeference information. Type: text Domain: full horizontal vertical Mandatory Not repeatable Parent: Ground_Control_Point_Description Control_Point_Use_Flag Whether the ground control point has previously been used and verified. Type: text Domain: new used verified not verified used and verified free text Optional Not repeatable Parent: Ground_Control_Point_Description Control_Point_Vertical_Accuracy A priori standard deviation of the vertical coordinate of the ground control point, in units specified by Altitude_Distance_Units. Type: real Domain: Control_Point_Vertical_Accuracy >= 0.0 Optional Not repeatable Parent: Ground_Control_Point_Description Control_Point_x_Value Value of map x-coordinate at control point location. Type: real Domain: free real Mandatory Not repeatable Parent: Control_Point_Earth_Location Control_Point_y_Value Value of map y-coordinate at control point location. Type: real Domain: free real Mandatory Not repeatable Parent: Control_Point_Earth_Location Control_Point_z_Value Value of vertical coordinate at control point location. Type: real Domain: free real Optional Not repeatable Parent: Control_Point_Earth_Location Coordinate_Point Location of a coordinate point described by the referencing element. Type: compound Mandatory Repeatable Parent: Location_Information Coordinate_Point = Coordinate_x_Value + Coordinate_y_Value + 0{Coordinate_z_Value}1 Coordinate_System Definition of axes of coordinate system in which location of positions is provided. Type: compound Conditional - present and mandatory if and only if not defined in referencing element Not repeatable Parent: Location_Information Coordinate_System = [Unreferenced_Coordinate_System | Referenced_Coordinate_System] Coordinate_x_Value Location of point along x-axis. Type: real Domain: free real Mandatory Not repeatable Parent: Coordinate_Point Coordinate_XY_Units Physical dimension corresponding to value of unity in x and y coordinate directions as defined in Coordinate_System or referencing element, where the coordinates correspond to physical dimensions. Type: text Domain: micrometers millimeters meters kilometers free text Conditional - present and mandatory if and only if the coordinates correspond to physical dimensions and are not specified elsewhere. Not repeatable Parent: Location_Information Coordinate_y_Value Location of point along y-axis. Type: real Domain: free real Mandatory Not repeatable Parent: Coordinate_Point Coordinate_Z_Units Physical dimension corresponding to value of unity in z coordinate directions Coordinate_System or referencing element, where the coordinates correspond to physical dimensions. Type: text Domain: meters feet millibars free text Optional Not repeatable Parent: Location_Information Coordinate_z_Value Location of point along z-axis. Type: real Domain: free real Mandatory-if-applicable Not repeatable Parent: Coordinate_Point Cross_Track_Axis Axis about which cross-track angles are measured. Type: text Domain: x y z free text Mandatory Not repeatable Parent: Cross_Track_Zero Cross_Track_Description Additional information about cross-track measurements, in text form. Type: text Domain: free text Optional Not repeatable Parent: Scan_Cross_Track_Properties Cross_Track_Direction Direction on Cross_Track_Axis relative to which cross-track angles are measured. Type: text Domain: positive negative Mandatory Not repeatable Parent: Cross_Track_Zero Cross_Track_Extent_Angle Angle between end and start of cross-track range. Type: real Domain: Cross_Track_Extent_Angle > 0.0 Conditional - present and mandatory if and only if Cross_Track_Step_Angle is absent Not repeatable Parent: Cross_Track_Sweep Cross_Track_Fixed_Angle Constant angle relative to cross-track axis at which scanner is held while it scans in another direction. Type: real Domain: free real Conditional - present and mandatory if and only if Cross_Track_Sweep is absent Not repeatable Parent: Scan_Cross_Track_Properties Cross_Track_Motion Direction and pattern of measurements relative to track. Type: text Domain: free text Mandatory Not repeatable Parent: Swath_Track_Information Cross_Track_Start_Angle Angle of start of cross-track measurement from Cross_Track_Axis, in Scan_Angle_Units. Type: real Domain: free real Mandatory Not repeatable Parent: Cross_Track_Sweep Cross_Track_Step_Angle Angle between cross-track steps, in Scan_Angle_Units. Type: real Domain: Cross_Track_Step_Angle > 0.0 Conditional - present and mandatory if and only if Cross_Track_Extent_Angle is absent Not repeatable Parent: Cross_Track_Sweep Cross_Track_Sweep Description of angular properties of cross-track sweep. Type: compound Conditional - present and mandatory if and only if Cross_Track_Fixed_Angle is absent Not repeatable Parent: Scan_Cross_Track_Properties Cross_Track_Sweep = Number_of_Cross_Track_Samples + Cross_Track_Start_Angle + [Cross_Track_Extent_Angle | Cross_Track_Step_Angle] Cross_Track_Zero Direction relative to which cross-track angles are measured. Type: compound Mandatory Not repeatable Parent: Scan_Cross_Track_Properties Cross_Track_Zero = Cross_Track_Axis + Cross_Track_Direction Data_Dictionary_Reference Reference to a list of terms and their definitions, used in describing the dataset. Type: compound Optional Repeatable Parent: Documentation Data_Dictionary_Reference = Citation_Information Data_Scaling_Information Function converting set of values on one scale to another. Type: compound Mandatory-if-applicable Not repeatable Parent: Attribute_Domain_Values Data_Scaling_Information = [Polynomial_Function | Non_Polynomial_Scaling] Dataset_Identifier Unique string to identify a dataset. Type: text Domain: free text Mandatory Not repeatable Parent: Identification_Information Date_of_Last_Calibration Date of most recent camera calibration. Type: date Domain: free date Mandatory Not repeatable Parent: Last_Calibration Developing_Institution Institution where the film was developed. Type: compound Optional Not repeatable Parent: Frame_Hardware Developing_Institution = Contact_Information Dimension_Count The maximum number of data points along the corresponding axis. Type: integer Domain: Dimension_Count >= 1 Mandatory Not repeatable Parent: Dimension_Properties Dimension_Description Specification for the independent axes in the coordinate system in which spatial data are located. Type: compound Conditional - present and mandatory if and only if Raster_Object_Type +Row_Count + Column_Count +0{Vertical Count}1 combination is absent Not repeatable Parent: Raster_Object_Information Dimension_Description = Number_of_Data_Dimensions + 1{Dimension_Properties}n Dimension_Properties Description of individual axis in spatial data matrix. Type: compound Mandatory Repeatable Parent: Dimension_Description Dimension_Properties = Name_of_Dimension + Dimension_Count Distance_Dependent_Distortion Lens distortion values provided as a function of linear distance to the principal point of best symmetry. Type: compound Conditional - present and mandatory if and only if Angle_Dependent_Distortion and Radial_Symmetrical_Distortion_Polynomial are absent Not repeatable Parent: Distortion_Type_Radial_Symmetrical Distance_Dependent_Distortion = Radial_Symmetrical_Distance_Interval + Number_of_Distance_Distortion_Values + 1{Distance_Distortion_Value}n Distance_Distortion_Value Value of distortion at one of the radial distances specified by Radial_Distance_Interval, in micrometers. Type: real Domain: free real Mandatory Repeatable Parent: Distance_Dependent_Distortion Distortion Departure of positions in image from those in scene imaged. Type: compound Mandatory-if-applicable Not repeatable Parent: Frame_Geometric_Properties Distortion = 0{Distortion_Type_Radial_Symmetrical}1 + (Distortion_Type_Radial_Asymmetrical) + (Distortion_Type_Affine) Distortion_Type_Affine Errors of the image coordinate system that can be described with an affine transformation of the following form: x' = C1 * x' + C2 * y' y' = 0 Type: compound Optional Not repeatable Parent: Distortion Distortion_Type_Affine = Affine_Distortion_X_Prime_Coefficient + Affine_Distortion_Y_Prime_Coefficient Distortion_Type_Radial_Asymmetrical Distortion that can be expressed in the form x' = B1 (r'2 + 2x'2) + 2B2 * x' * y' y' = B2 (r'2 + 2x'2) + 2B1 * x' * y' Type: compound Optional Not repeatable Parent: Distortion Distortion_Type_Radial_Asymmetrical = Radial_Asymmetrical_Coefficient_B1 + Radial_Asymmetrical_Coefficient_B2 Distortion_Type_Radial_Symmetrical The shift of an image point towards the center (negative values) or border (positive values) of the image. Type: compound Mandatory-if-applicable Not repeatable Parent: Distortion Distortion_Type_Radial_Symmetrical = [Distance_Dependent_Distortion | Angle_Dependent_Distortion | Radial_Symmetrical_Distortion_Polynomial] Documentation Information about or relevant to the dataset. Type: compound Optional Repeatable Parent: Description Documentation = (1{Data_Dictionary_Reference}n) + (1{User's_Guide}n) + (1{Science_Paper}n) Eccentricity Eccentricity of orbit, equal to (1-b/a)1/2, where a is the length of the major axis and b is the length of the minor axis of the orbit. Type: real Domain: 0.0 <= Eccentricity < 1.0 Mandatory Not repeatable Parent: Keplerian_Orbit Effective_Aerial_Film_Speed Two-thirds of the exposure in lux seconds at the point on the characteristic curve where the density is 0.3 above fog density, under processing conditions other than those defined in ANSI PH2.34-1969 or determined empirically for color and infrared-sensitive films not covered by ANSI Standard PH 2.34-1969. Type: real Domain: Effective_Aerial_Film_Speed > 0.0 Optional Not repeatable Parent: Frame_Hardware Elevation_Axis Axis about which elevation angles are measured. Type: text Domain: x y z free text Mandatory Not repeatable Parent: Elevation_Zero Elevation_Description Additional information about elevation measurements, in text form. Type: text Domain: free text Optional Not repeatable Parent: Scan_Elevation_Properties Elevation_Direction Direction on Elevation_Axis relative to which elevation angles are measured. Type: text Domain: positive negative Mandatory Not repeatable Parent: Elevation_Zero Elevation_Extent_Angle Angle between end and start of elevation range. Type: real Domain: Elevation_Extent_Angle > 0.0 Conditional - present and mandatory if and only if Elevation_Step_Angle is absent Not repeatable Parent: Elevation_Sweep Elevation_Fixed_Angle Constant angle relative to elevation axis at which scanner is held while it scans in another direction. Type: real Domain: free real Conditional - present and mandatory if and only if Elevation_Sweep is absent Not repeatable Parent: Scan_Elevation_Properties Elevation_Start_Angle Angle of start of elevation measurement from Elevation_Axis, in Scan_Angle_Units. Type: real Domain: free real Mandatory Not repeatable Parent: Elevation_Sweep Elevation_Step_Angle Angle between elevation steps, in Scan_Angle_Units. Type: real Domain: Elevation_Step_Angle > 0.0 Conditional - present and mandatory if and only if Elevation_Extent_Angle is absent Not repeatable Parent: Elevation_Sweep Elevation_Sweep Description of angular properties of elevation sweep. Type: compound Conditional - present and mandatory if and only if Elevation_Fixed_Angle is absent Not repeatable Parent: Scan_Elevation_Properties Elevation_Sweep = Number_of_Elevation_Samples + Elevation_Start_Angle + [Elevation_Extent_Angle | Elevation_Step_Angle] Elevation_Zero Direction relative to which elevation angles are measured. Type: compound Mandatory Not repeatable Parent: Scan_Elevation_Properties Elevation_Zero = Elevation_Axis + Elevation_Direction Ephemeris Time at which nominal platform orbit or geostationary position is valid. Type: compound Mandatory Not repeatable Parent: Platform_Orbit Ephemeris = Single_Date/Time Exposure_Time Length of exposure, in seconds. Type: real Domain: Exposure_Time > 0.0 Optional Not repeatable Parent: Frame_Optics Exterior_Orientation_Accuracy Uncertainties in the parameters of exterior orientation. Type: compound Optional Not repeatable Parent: Instrument_Specific_Georeferencing Exterior_Orientation_Accuracy = X_Position_Accuracy + Y_Position_Accuracy + Z_Position_Accuracy + Roll_Accuracy + Pitch_Accuracy + Yaw_Accuracy Fiducial Calibrated coordinates for four or more marks attached to the frame of the camera, in millimeters in the image coordinate system. Type: compound Conditional - present and mandatory if and only if Reseau and Sensor_System are absent Not repeatable Parent: Frame_Geometric_Properties Fiducial = Location_Information Fiducial_Center Coordinates in millimeters, in the image coordinate system, of center point where lines between the four or more fiducial marks meet. Type: compound Optional Not repeatable Parent: Frame_Geometric_Properties Fiducial_Center = Location_Information Film_Type Manufacturer's name and specification of film Type: text Domain: free text Optional Not repeatable Parent: Frame_Hardware Filter_on_Camera Device placed in front of camera lens limiting the range of wavelengths that can pass through. Type: compound Optional Not repeatable Parent: Frame_Spectral_Properties Filter_on_Camera = Filter_on_Camera_Indicator + 0{Filter_Type}1 + Filter_on_Camera_Indicator Indicator as to whether or not there is a filter in front of the camera. Type: text Domain: yes no Mandatory Not repeatable Parent: Filter_on_Camera Filter_Type Manufacturers name for and/or description of filter used. (Note: CTO-1 and L filters are all manufactured by AGFA Gevaert, HF-3 to 89 by Kodak Wratten, Sandwich Color to Infrared by Wild, and A2 to K by Carl Zeiss.) Type: text Domain: CTO 1 L453 L477 L510 L599 L731 HF-3 (2B) No. 3(Aero 1) No. 8 (K2) No. 12 (Minus Blue) No. 15 (G) No. 25 (A) No. 89 B (IR) Sandwich Color Haze Filter Sandwich False Color Dark Yellow Light Red Infrared A2 B D F H I K free text Mandatory-if-applicable Not repeatable Parent: Filter_on_Camera Flight_Protocol Description of circumstances and properties of the flight track relevant to use of the images and data. Type: compound Optional Not repeatable Parent: Platform_Information Flight_Protocol = Flying_Height + (GPS_Information_System_Availability) + (INS_Reading_Availability) Flying_Height Height of platform above ground in meters, with an uncertainty of 10-100 meters. Type: real Domain: Flying_Height > 0.0 Mandatory Not repeatable Parent: Flight_Protocol Forward_Motion_Compensation Whether or not image is moved in flying direction during exposure in order to compensate image motion for ground speed. Type: text Domain: yes no Optional Not repeatable Parent: Frame_Operation Frame_Area Geographical area covered by individual frame. Type: compound Optional Repeatable Parent: Spatial_Domain Frame_Area = Frame_Area_Value + Frame_Area_Units Frame_Area_Units Units in which value given by Frame_Area_Value is expressed. Type: text Domain: square meters square miles free text Mandatory Not repeatable Parent: Frame_Area Frame_Area_Value Area covered by frame, in units given by Frame_Area_Units. Type: real Domain: Frame_Area_Value > 0.0 Mandatory Not repeatable Parent: Frame_Area Frame_Camera Description of photographic system using a central perspective projection, with the detector, normally film, pressed against a calibrated frame during the exposure. Type: compound Conditional - present and mandatory if and only if Scan and Other_Collector_Description are absent Not repeatable Parent: Instrument_Description Frame_Camera = (Frame_Hardware) + Frame_Optics + Frame_Geometric_Properties + (Frame_Operation) + (Frame_Radiometric_Properties) + (Frame_Spectral_Properties) Frame_Geometric_Properties Geometric characteristics of instrument used to derive single frame images. Type: compound Mandatory Not repeatable Parent: Frame_Camera Frame_Geometric_Properties = (Image_Size) + [Fiducial | Reseau | Sensor_System] + 0{Principal_Point_of_Autocollimation}1 + (Quality_of_Principal_Point_of_Autocollimation) + (Principal_Point_of_Symmetry) + (Quality_of_Principal_Point_of_Symmetry) + (Fiducial_Center) + (Sensor_Element_Location) + 0{Distortion}1 Frame_Hardware Physical description of camera and film. Type: compound Optional Not repeatable Parent: Frame_Camera Frame_Hardware = (Camera_Type) + (Camera_Identifier) + (Lens) + (Magazine_Identifier) + (Film_Type) + (Aerial_Film_Speed) + (Effective_Aerial_Film_Speed) + (Developing_Institution) Frame_Operation Information describing the configuration or motion of the camera mounting. Type: compound Optional Not repeatable Parent: Frame_Camera Frame_Operation = (Stabilized_Mount) + (Forward_Motion_Compensation) Frame_Optics Physical description of the photographic system. Type: compound Mandatory Not repeatable Parent: Frame_Camera Frame_Optics = (Photographic_Resolving_Power) + (Relative_Aperture) + (Exposure_Time) + Calibrated_Focal_Length + (Quality_of_Focal_Length) + (Last_Calibration) Frame_Radiometric_Calibration Transformation from units in which electronic detector measures to physical units. Type: compound Mandatory-if-applicable Not repeatable Parent: Frame_Radiometric_Properties Frame_Radiometric_Calibration = Data_Scaling_Information Frame_Radiometric_Properties Information on the relation between radiation received and measured by a detector system. Type: compound Optional Not repeatable Parent: Frame_Camera Frame_Radiometric_Properties = 0{Frame_Radiometric_Calibration}1 + (Light_Drop) Frame_Spectral_Information Information about wavelength sensitivity of detector. Type: compound Optional Not repeatable Parent: Frame_Spectral_Properties Frame_Spectral_Information = Spectral_Information Frame_Spectral_Properties Wavelength-dependent characteristics of system. Type: compound Optional Not repeatable Parent: Frame_Camera Frame_Spectral_Properties = (Frame_Spectral_Information) + (Filter_on_Camera) + (Spectral_Limit) Georectified_Raster Raster whose cells are regularly spaced in a geographic or map coordinate system defined in some Spatial_Referencing_System, such that any cell can be geolocated given its raster coordinate and the raster origin, cell spacing, and orientation, possibly including a terrain model. (Note: Let amn be the pixel grid point in the mth row and the nth column, with (x,y) the position of that grid point in map coordinates. Let the map position corresponding to the first element of the grid a11 be (x0,y0). Then x= x0 + (m-1)xm +(n-1)ym and y= y0 + (m-1)xn +(n-1)yn, where the terms are defined in the elements below. The overlay is shown in Figure 3, with definitions of the individual pixels.) Type: compound Conditional - present and mandatory if and only if Georeferenceable_Raster is absent Not repeatable Parent: Georeferencing_Information Georectified_Raster = Pixel_Resolution + Grid_First_Element + Grid_Orientation + Point_Position_In_Pixel + Storage_Order Georeferenceable_Raster Raster whose cells may be irregularly spaced in any geographic or map projection coordinate system, whose cells can be geolocated using geolocation information supplied with the data but not from the raster properties alone. Type: compound Conditional - present and mandatory if and only if Georectified_Raster is absent Not repeatable Parent: Georeferencing_Information Georeferenceable_Raster = 1{Georeferencing_Description}n + (1{Aerotriangulation_Reference}n) + 0{Swath_Track_Information}1 Georeferencing_Description Description of information provided in metadata that allows the geographic or map location of raster points to be located. Type: compound Mandatory Repeatable Parent: Georeferenceable_Raster Georeferencing_Description = [Ground_Control_Point_Information | Instrument_Specific_Georeferencing | Referencing_Polynomial | Other_Georeferencing_Description] Georeferencing_Information Information that will allow determination of geographical location of raster points. Type: compound Mandatory-if-applicable Not repeatable Parent: Spatial_Reference_Information Georeferencing_Information = [Georectified_Raster | Georeferenceable_Raster] GPS_Information_System_Availability Availability of three-dimensional Global Positioning System (GPS) positions. Type: text Domain: available not available Optional Not repeatable Parent: Flight_Protocol Grid_First_Element Point on map (x0,y0) corresponding to first element of the pixel array. Type: compound Mandatory Not repeatable Parent: Georectified_Raster Grid_First_Element = Grid_First_Element_Map_X_Coordinate + Grid_First_Element_Map_Y_Coordinate Grid_First_Element_Map_X_Coordinate Value x0 of x-coordinate on map at point corresponding to first element of pixel system. Type: real Domain: free real Mandatory Not repeatable Parent: Grid_First_Element Grid_First_Element_Map_Y_Coordinate Value y0 of y-coordinate on map at point corresponding to first element of pixel system. Type: real Domain: free real Mandatory Not repeatable Parent: Grid_First_Element Grid_Orientation Orientation of image pixel grid relative to map on which it is overlaid. Type: compound Mandatory Not repeatable Parent: Georectified_Raster Grid_Orientation = Row_Delta_X + Row_Delta_Y + Column_Delta_X + Column_Delta_Y Ground_Control_Point_Description Lineage and applicability of ground control points. Type: compound Mandatory Repeatable Parent: Ground_Control_Point_Information Ground_Control_Point_Description = Control_Point_Type + (Control_Point_Origin) + (Control_Point_Use_Flag) + (Control_Point_Horizontal_X_Accuracy) + (Control_Point_Horizontal_Y_Accuracy) + (Control_Point_Vertical_Accuracy) Ground_Control_Point_Information Information describing data points for which both raster and geographic locations are available that can be used to relate raster and geographic coordinates at other points. Type: compound Conditional - mandatory if neither Instrument_Specific_Georeferencing, Referencing_Polynomial, nor Other_Georeferencing_Description is present; otherwise optional Not repeatable Parent: Georeferencing_Description Ground_Control_Point_Information = Ground_Control_Point_Organization + [Ground_Control_Point_Description + 1{Ground_Control_Point_Position}n | 1{Ground_Control_Point_Description + Ground_Control_Point_Position}n] Ground_Control_Point_Organization Specification as to whether geographic locations of control points are supplied together with raster points or are in separate library. Type: text Domain: location library Mandatory Not repeatable Parent: Ground_Control_Point_Information Ground_Control_Point_Position Location of individual control points, defined separately for every point, in both raster and geographic or map coordinate systems. Type: compound Mandatory Repeatable Parent: Ground_Control_Point_Information Ground_Control_Point_Position = Control_Point_Raster_Position + [Control_Point_Earth_Location | Control_Point_Identification] Ground_Shape Shape of pixel on ground. Type: text Domain: free text Mandatory Not repeatable Parent: Swath_Track_Information ID_Overlapping_Dataset Identifier for external frame imaging some areas in common. Type: compound Mandatory Not repeatable Parent: Multiple_Image_Alignment ID_Overlapping_Dataset = Dataset_Identifier IFOV_Units Units in which value of instantaneous field of view is expressed. Type: text Domain: meters degrees milliradians free text Mandatory Not repeatable Parent: Instantaneous_Field_of_View IFOV_x_Definition Definition of x direction in instantaneous field of view. Type: text Domain: cross track along scan frame free text Mandatory Not repeatable Parent: Instantaneous_Field_of_View IFOV_x_Value Size of instantaneous field of view, in direction defined by IFOV_x_Definition, in units given by IFOV_Units. Type: real Domain: IFOV_x_Value > 0.0 Mandatory Not repeatable Parent: Instantaneous_Field_of_View IFOV_y_Definition Definition of y direction in instantaneous field of view. Type: text Domain: along track cross scan free text Mandatory Not repeatable Parent: Instantaneous_Field_of_View IFOV_y_Value Size of instantaneous field of view, in direction defined by IFOV_y_Definition, in units given by IFOV_Units. Type: real Domain: IFOV_y_Value > 0.0 Mandatory Not repeatable Parent: Instantaneous_Field_of_View Image_Quality Qualitative description of image quality. Type: text Domain: free text Optional Not repeatable Parent: Data_Quality_Information Image_Size Metric length and width of the image. Type: compound Optional Not repeatable Parent: Frame_Geometric_Properties Image_Size = Image_Size_x_Value + Image_Size_y_Value Image_Size_x_Value Image size, in millimeters, in the direction of the x-axis. Type: real Domain: Image_Size_x_Value > 0.0 Mandatory Not repeatable Parent: Image_Size Image_Size_y_Value Image size, in millimeters, in the direction of the y-axis. Type: real Domain: Image_Size_y_Value > 0.0 Mandatory Not repeatable Parent: Image_Size Inclination Angle between orbit and equator, in units given by Orbit_Angle_Units. Type: real Domain: 0.0 <= Inclination <= 180.0 Mandatory Not repeatable Parent: Keplerian_Orbit Individual_Band_Identification Complete information to identify a single instrument band. Type: compound Mandatory-if-applicable Repeatable Parent: Band_Identification Individual_Band_Identification = Band_ID + Band_Measurement_Mode_ID Input_Dataset_Identifier Unique identifier for input dataset. Type: compound Mandatory Not repeatable Parent: Processing_Input_Dataset Input_Dataset_Identifier = Dataset_Identifier Input_Description Description of input datasets for processing. Type: text Domain: free text Conditional - present and mandatory if and only if Input_Reference is absent Not repeatable Parent: Processing_Input_Dataset Input_Level Data distributor's code that identifies the degree of radiometric and geometric processing applied to the data defined in Processing_Input_Dataset. Type: compound Mandatory-if-applicable Not repeatable Parent: Processing_Input_Dataset Input_Level = Processing_Level Input_Reference Reference to document describing input to processing. Type: compound Conditional - present and mandatory if and only if Input_Description is absent Not repeatable Parent: Processing_Input_Dataset Input_Reference = Citation_Information INS_Reading_Availability Availability of Inertial Navigation System (INS) readings along the flight line. Type: text Domain: available not available Optional Not repeatable Parent: Flight_Protocol Instantaneous_Field_of_View Ground or target area viewed by a sensor at a given time. Type: compound Mandatory Not repeatable Parent: Scan_Geometric_Properties Instantaneous_Field_of_View = IFOV_Units + IFOV_x_Definition + IFOV_x_Value + IFOV_y_Definition + IFOV_y_Value Institution_of_Last_Calibration Institution that performed the camera calibration that occurred at Date_of_Last_Calibration. Type: text Domain: free text Optional Not repeatable Parent: Last_Calibration Instrument_Description Characteristics and behavior of instrument. Type: compound Conditional - mandatory if no instances of Instrument_Reference present, otherwise optional Repeatable Parent: Instrument_Information Instrument_Description = Instrument_Type + 0{Operational_Mode}1 + Collection_Type + (Sensor_Orientation) + [Frame_Camera | Scan | Other_Collector_Description] + (Instrument_Properties_Description) Instrument_Full_Name The complete name of the instrument. Type: text Domain: free text Mandatory Not repeatable Parent: Platform_and_Instrument_Identification Instrument_Information Instrument properties and behavior. Type: compound Mandatory-if-applicable Repeatable Parent: Metadata Instrument_Information = [1{Instrument_Description}n | 1{Instrument_Reference}n | 1{Instrument_Description}n + 1{Instrument_Reference}n] Instrument_Properties_Description Textual information on instrument properties, in areas not otherwise specified in this standard. Type: text Domain: free text Optional Not repeatable Parent: Instrument_Description Instrument_Reference Reference providing description of instrument properties and behavior. Type: compound Conditional - mandatory if no instances of Instrument_ Description present, otherwise optional Repeatable Parent: Instrument_Information Instrument_Reference = Citation_Information Instrument_Short_Name The short name, acronym, or other identifier by which the instrument is known. Type: text Domain: free text Mandatory-if-applicable Not repeatable Parent: Platform_and_Instrument_Identification Instrument_Specific_Georeferencing Information relating coordinate system of a particular instrument to ground coordinate system. Type: compound Conditional - mandatory if neither Ground_Control_Point_Information, Referencing_Polynomial, nor Other_Georeferencing_Description is present; otherwise optional Not repeatable Parent: Georeferencing_Description Instrument_Specific_Georeferencing = 1{Positional_Information}n + (Exterior_Orientation_Accuracy) + Rotation_Sequence + Axis_Rotation_Convention Instrument_Type Class of data measuring instrument. Type: text Domain: imager sounder free text Mandatory Not repeatable Parent: Instrument_Description Keplerian_Orbit Nominal Keplerian elements of platform orbit. Type: compound Conditional - present and mandatory only if Nominal_Geostationary_Position is absent Not repeatable Parent: Platform_Orbit Keplerian_Orbit = [Semimajor_Axis | Orbit_Period | Semimajor_Axis + Orbit_Period] + Eccentricity + Orbit_Angle_Units + Inclination + Right_Ascension_of_Ascending_Node + Argument_of_Perigee + Perigee_Passage_Time Last_Calibration Description of most recent camera calibration. Type: compound Optional Not repeatable Parent: Frame_Optics Last_Calibration = Date_of_Last_Calibration + (Method_of_Last_Calibration) + (Institution_of_Last_Calibration) Layer_Name Description of one kind of geospatial information represented by the dataset. Type: compound Mandatory Repeatable Parent: Thematic_Layer_Identification Layer_Name = Theme Lens Optical component that uses refraction to focus light on the image plane. Type: compound Optional Not repeatable Parent: Frame_Hardware Lens = Lens_Type + Lens_Identifier Lens_Identifier Unique alphanumeric identifier assigned by camera manufacturer to individual lens. Type: text Domain: free text Mandatory Not repeatable Parent: Lens Lens_Type Manufacturer's name specifying design of lens. (List items Topogon through S-Pleogon are manufactured by Zeiss, Aviogon through Orbigon by Wild, Normal Aviogon, all the Semi-wide-angle models, Super Aviogon, and all the Super-wide angle models by Wild/Leica, the Aviotar and Universal Aviogon models by Wild/Leica/LH Systems, and the Lamegor through SuperLamegon by Zeiss, the Metrogon by Bausch and Lomb, and the Geocon by Baker.) Type: text Domain: Topogon Telikon Topar Pleogon S-Pleogon Aviogon Wide Angle 15AG Orbigon Normal Aviogon Semi-wide-angle 21 NAG Semi-wide-angle 21 NAG II Semi-wide-angle 21-4 NAGA Semi-wide-angle NAGA-F Super Aviogon Super-wide-angle 8.8 SAG Super-wide-angle 8.8 SAG II Super-wide-angle 8.8/4 SAG-A Super-wide-angle 8.8/4 SAGA-F Aviotar 30At Aviotar 30AtI Aviotar 30/4 NAT Aviotar 30/4 NAT-A Aviotar 30/4 NATA-F Aviotar 30/4 NAT-S Universal Aviogon 15 UAG Universal Aviogon 15 UAGI Universal Aviogon 15 UAGII Universal Aviogon 15/4 UAG Universal Aviogon 15/4 UAG-A Universal Aviogon 15/4 UAGA-F Universal Aviogon 15/4 UAG-S Lamegor PI 5.6/300(A).B Lamegoron PI 5.6/210A Lamegon PI 4/150(A,B,C),D Superlamegon PI 5.6/90 (A,B),C Metrogon Geocon free text Mandatory Not repeatable Parent: Lens Light_Drop The ratio of the light at the border of the image to that at the center, given as a percentage. Type: real Domain: 0.0 <= Light_Drop <= 100.0 Optional Not repeatable Parent: Frame_Radiometric_Properties Location_Information Information about the location of a set of one or more points. (Note: this section provides a means of describing position in a coordinate system relevant to the calling element and is used by other sections of the metadata extensions. This section is never used alone. It differs from the Spatial Reference Information in that it provides positions in a coordinate system relevant to metadata elements, whereas the Spatial Reference Information refers only to positions at which the data are located.) Type: compound Specified by referencing element. Repeatable Parent: Fiducial Reseau Calibrated_Detector_Positions Principal_Point_of_Autocollimation Principal_Point_of_Symmetry Fiducial_Center Location_Information = Number_of_Points + 0{Coordinate_System}1 + 0{Coordinate_XY_Units}1 + (Coordinate_Z_Units) + 1{Coordinate_Point}n Magazine_Identifier Unique alphanumeric identifier of individual magazine as assigned by manufacturer. Type: text Domain: free text Optional Not repeatable Parent: Frame_Hardware Maximum_Wavelength Maximum wavelength boundary of the spectral range of the band using the criterion in Band_Boundary_Definition, in units specified by Wavelength_Units. Type: real Domain: Maximum_Wavelength >= Minimum_Wavelength Mandatory Not repeatable Parent: Wavelength_Band_Properties Method_of_Last_Calibration Method of most recent camera calibration. Type: text Domain: optical photographic Optional Not repeatable Parent: Last_Calibration Minimum_Wavelength Minimum wavelength boundary of the spectral range of the band using the criterion in Band_Boundary_Definition, in units specified by Wavelength_Units. Type: real Domain: Minimum_Wavelength > 0.0 Mandatory Not repeatable Parent: Wavelength_Band_Properties Mission_Completion Scheduled or actual end date of mission during which data were taken. Type: compound Mandatory-if-applicable Not repeatable Parent: Mission_History Mission_Completion = Single_Date/Time Mission_Description Description of the mission of which the platform observations are part and the objectives of that mission. Type: text Domain: free text Optional Not repeatable Parent: Mission_Information Mission_History Significant events and dates over the history of the mission. Type: compound Optional Not repeatable Parent: Mission_Information Mission_History = Mission_Start_Date + (1{Mission_Significant_Event}n) + 0{Mission_Completion}1 Mission_Information General information about the overall data gathering program to which the data contribute. Type: compound Optional Not repeatable Parent: Platform_and_Mission_Information Mission_Information = (Mission_Description) + (Mission_History) Mission_Name The character string by which the mission is known. Type: text Domain: free text Optional Not repeatable Parent: Platform_and_Instrument_Identification Mission_Significant_Event Date and description of a major occurrence during mission. Type: compound Optional Repeatable Parent: Mission_History Mission_Significant_Event = Process_Step Mission_Start_Date Date that mission during which data were taken began. Type: compound Mandatory Not repeatable Parent: Mission_History Mission_Start_Date = Single_Date/Time Multiple_Image_Alignment Positioning of other frame imaging some areas in common. Type: compound Optional Repeatable Parent: Spatial_Domain Multiple_Image_Alignment = ID_Overlapping_Dataset + Type_of_Overlap + Percentage_of_Overlap Nadir Location of point directly underneath platform. Type: compound Optional Not repeatable Parent: Acquisition_Information Nadir = Nadir_Latitude + Nadir_Longitude Nadir_Latitude Latitude of nadir. Type: real Domain: -90.0 <= Nadir_Latitude <= 90.0 Mandatory Not repeatable Parent: Nadir Nadir_Longitude Longitude of nadir. Type: real Domain: -180.0 <= Nadir_Longitude < 180.0 Mandatory Not repeatable Parent: Nadir Name_of_Dimension Designation assigned to an axis. Type: text Domain: row column vertical band free text Mandatory Not repeatable Parent: Dimension_Properties Nominal_Geostationary_Position Nominal location of platform designed to remain stationary over one point on earth. Type: compound Conditional - present and mandatory only if Keplerian_Orbit is absent Not repeatable Parent: Platform_Orbit Nominal_Geostationary_Position = Platform_Nominal_Longitude + Platform_Nominal_Altitude Nominal_Spatial_Resolution Smallest distance between which separate points can be distinguished, as specified in instrument design. Type: compound Optional Not repeatable Parent: Wavelength_Band_Properties Nominal_Spatial_Resolution = Spatial_Resolution_Units + Spatial_Resolution_Value Non_Polynomial_Scaling Text description of the function used to derive a set of values on one scale from their value in another, using a function that is not a polynomial. Type: text Domain: free text Conditional - present and mandatory if and only if Polynomial_Function is absent Not repeatable Parent: Data_Scaling_Information Number_of_Angle_Distortion_Values Number of distortion values supplied as a function of angle. Type: integer Domain: Number_of_Angle_Distortion_Values > 0 Mandatory Not repeatable Parent: Angle_Dependent_Distortion Number_of_Bands The number of instrument bands. Type: integer Domain: Number_of_Bands > 0 Mandatory Not repeatable Parent: Band_Identification Number_of_Cross_Track_Samples Number of measurements in direction across the track in each scan. Type: integer Domain: Number_of_Cross_Track_Samples > 0 Mandatory Not repeatable Parent: Cross_Track_Sweep Number_of_Data_Dimensions Number of axes used in spatial data matrix. Type: integer Domain: Number_of_Data_Dimensions > 0 Mandatory Not repeatable Parent: Dimension_Description Number_of_Denominator_Terms The number of nonzero terms in the denominator of the polynomial. Type: integer Domain: Number_of_Denominator_Terms >=1 Mandatory Not repeatable Parent: Polynomial_Denominator Number_of_Distance_Distortion_Values Number of radial points at which distance-dependent distortion values are provided. Type: integer Domain: Number_of_Distance_Distortion_Values > 0 Mandatory Not repeatable Parent: Distance_Dependent_Distortion Number_of_Elevation_Samples Number of measurements in direction across the track in each scan. Type: integer Domain: Number_of_Elevation_Samples > 0 Mandatory Not repeatable Parent: Elevation_Sweep Number_of_Numerator_Terms The number of nonzero terms in the numerator of the polynomial. Type: integer Domain: Number_of_Numerator_Terms >=1 Mandatory Not repeatable Parent: Polynomial_Numerator Number_of_Points Number of coordinate positions. Type: integer Domain: Number_of_Points > 0 Mandatory Not repeatable Parent: Location_Information Number_of_Profile_Samples Number of heights at which measurements are made. Type: integer Domain: Number_of_Profile_Samples > 0 Mandatory Not repeatable Parent: Profile_Sounding Number_of_Resolution_Values Number of angles at which values of resolving power are available. Type: integer Domain: Number_of_Resolution_Values >= 1 Mandatory Not repeatable Parent: Photographic_Resolving_Power Number_of_Thematic_Layers Number of kinds of geospatial information represented by the dataset. Type: integer Domain: Number_of_Thematic_Layers > 0 Mandatory Not repeatable Parent: Thematic_Layer_Identification Number_of_Wavelength_Bands Number of separate wavelength ranges at which system measures. Type: compound Mandatory Not repeatable Parent: Spectral_Information Number_of_Wavelength_Bands = Number_of_Bands Operational_Mode The way in which the instrument is functioning. Type: text Domain: launch survival initialization safe diagnostic standby crosstrack biaxial solar calibration free text Mandatory-if-applicable Not repeatable Parent: Instrument_Description Orbit_Angle_Units Unit of measure used to express orbital angles. Type: text Domain: degrees radians free text Mandatory Not repeatable Parent: Keplerian_Orbit Orbit_Period Time from one perigee to the next. (Note: The orbit period is related to the semimajor axis of the orbit by P2=42a3/[G(M+m)], where P is the orbit period, a is the semimajor axis, G the universal gravitational constant, M the mass of the Earth, and m the mass of the satellite. In practice, because the product GM is easier to obtain than G or M, and because m< Unit of measure used to express orbit period. Type: text Domain: seconds minutes hours days free text Mandatory Not repeatable Parent: Orbit_Period Orbit_Period_Value Time required for one platform orbit, in units given by Orbit_Period_Units. Type: real Domain: Orbit_Period_Value > 0.0 Mandatory Not repeatable Parent: Orbit_Period Other_Collector_Description Description of properties of data collection system other than frame camera or whiskbroom scanner. Type: text Domain: free text Conditional - present and mandatory if and only if Frame_Camera and Scan are absent Not repeatable Parent: Instrument_Description Other_Georeferencing_Description Text description of other method for georeferencing. Type: text Domain: free text Conditional - mandatory if neither Ground_Control_Point_Information, Instrument_Specific_Georeferencing, nor Referencing_Polynomial is present; otherwise optional Not repeatable Parent: Georeferencing_Description Path Sequential number, increasing east to west, assigned to satellite orbital track. Type: integer Domain: 0 < Path <= 251 Mandatory Not repeatable Parent: Worldwide_Reference_System Peak_Wavelength Wavelength of maximum sensitivity within the band, in units specified by Wavelength_Units. Type: real Domain: Minimum_Wavelength <= Peak_Wavelength <= Maximum_Wavelength Optional Not repeatable Parent: Wavelength_Band_Properties Percentage_of_Overlap Area common to two successive photos along the same flight strip, expressed as a percentage of photo area. Type: real Domain: 0.0 <= Percentage_of_Overlap <= 100.0 Mandatory Not repeatable Parent: Multiple_Image_Alignment Perigee_Passage_Time One date and time where platform was at closest point to earth in its orbit. Type: compound Mandatory Not repeatable Parent: Keplerian_Orbit Perigee_Passage_Time = Single_Date/Time Photographic_Resolving_Power Resolving power of the camera at different field angles. Type: compound Optional Not repeatable Parent: Frame_Optics Photographic_Resolving_Power = Number_of_Resolution_Values + 1{Resolution_Value_Set}n + (Area_Weighted_Average_Resolution) Pitch Pitch angle phi of image coordinate system relative to ground coordinate system, in units defined by Attitude_Angular_Units, measured clockwise around the positive y-axis (z x). Type: real Domain: free real Mandatory Not repeatable Parent: Positional_Information Pitch_Accuracy Standard deviation of pitch angle, phi, in same units as angle. Type: real Domain: Pitch_Accuracy >= 0.0 Mandatory Not repeatable Parent: Exterior_Orientation_Accuracy Pixel_Cross_Track_Size Angular extent of pixel in cross-track direction, in units specified in Sample_Angle_Units. Type: real Domain: Pixel_Cross_Track_Size > 0.0 Mandatory-if-applicable Not repeatable Parent: Pixel_Description Pixel_Description Description of angular dimensions and location of scanner picture cell. Type: compound Mandatory Repeatable Parent: Sample_Properties Pixel_Description = 0{Pixel_Cross_Track_Size}1 + 0{Pixel_Elevation_Size}1 + 0{Pixel_Profile_Size}1 + (Pixel_Height_Above_Ellipsoid) + (Pixel_Point_Spread_Function) Pixel_Elevation_Size Size of pixel in elevation direction, in units specified in Sample_Angle_Units. Type: real Domain: Pixel_Elevation_Size > 0.0 Mandatory-if-applicable Not repeatable Parent: Pixel_Description Pixel_Height_Above_Ellipsoid Height of pixel above ellipsoid defined as part of spatial representation information, in units specified in Sample_Profile_Units. Type: real Domain: Pixel_Height_Above_Ellipsoid > 0.0 Optional Not repeatable Parent: Pixel_Description Pixel_Point_Spread_Function Pixel image distribution that would be produced by a single point. Type: text Domain: free text Optional Not repeatable Parent: Pixel_Description Pixel_Profile_Size Size of pixel in profile direction, in units specified in Sample_Profile_Units. Type: real Domain: Pixel_Profile_Size > 0.0 Mandatory-if-applicable Not repeatable Parent: Pixel_Description Pixel_Resolution Geographic dimensions corresponding to one raster pixel of processed data. Type: compound Mandatory Not repeatable Parent: Georectified_Raster Pixel_Resolution = Coordinate_Representation Planar_Distance_Units Platform_and_Instrument_Identification Designations for the measuring instruments and their bands, the platform carrying them, and the mission to which the data contribute. Type: compound Mandatory-if-applicable Repeatable Parent: Identification_Information Platform_and_Instrument_Identification = (Mission_Name) + Platform_Full_Name + (Platform_Short_Name) + (Platform_Serial_Identifier) + Instrument_Full_Name + 0{Instrument_Short_Name}1 Platform_and_Mission_Information Descriptive information about the platform from which the measurements that produced the data and about the program of which the data collection was a part. Type: compound Mandatory-if-applicable Not repeatable Parent: Metadata Platform_and_Mission_Information = (Mission_Information) + (1{Platform_Information}n) Platform_Description Narrative description of the platform from which the data were taken. Type: text Domain: free text Optional Not repeatable Parent: Platform_Information Platform_Full_Name The complete name of the platform. Type: text Domain: free text Mandatory Not repeatable Parent: Platform_and_Instrument_Identification Platform_Information General information about the platform from which the data were taken. Type: compound Optional Repeatable Parent: Platform_and_Mission_Information Platform_Information = Platform_Start_Date + (1{Platform_Sponsor}n) + (Platform_Description) (Platform_Orbit) + (Flight_Protocol) Platform_Nominal_Altitude Nominal altitude of geostationary satellite above the surface given by Altitude_Datum_Name defined in base standard. Type: compound Mandatory Not repeatable Parent: Nominal_Geostationary_Position Platform_Nominal_Altitude = Platform_Nominal_Altitude_Units + Platform_Nominal_Altitude_Value Platform_Nominal_Altitude_Units Units of measure in which nominal altitude for platform is expressed. Type: compound Mandatory Not repeatable Parent: Platform_Nominal_Altitude Platform_Nominal_Altitude_Units = Altitude_Distance_Units Platform_Nominal_Altitude_Value Value for nominal altitude of platform, in units given by Platform_Nominal_Altitude_Units. Type: real Domain: free real Mandatory Not repeatable Parent: Platform_Nominal_Altitude Platform_Nominal_Longitude Nominal value for longitude of subsatellite point for geostationary satellite. Type: real Domain: -180.0 < Platform_Nominal_Longitude <= 180.0 Mandatory Not repeatable Parent: Nominal_Geostationary_Position Platform_Orbit Orbital parameters of instrument platform. Type: compound Optional Not repeatable Parent: Platform_Information Platform_Orbit = Ephemeris + [Keplerian_Orbit | Nominal_Geostationary_Position] Platform_Serial_Identifier The serial letters and/or numbers applied to the platform. Type: text Domain: free text Optional Not repeatable Parent: Platform_and_Instrument_Identification Platform_Short_Name An acronym or shorter form of the platform name, used to identify the platform. Type: text Domain: free text Optional Not repeatable Parent: Platform_and_Instrument_Identification Platform_Sponsor An organization responsible for building, launch, or operation of the platform, and its role. Type: text Domain: free text Optional Repeatable Parent: Platform_Information Platform_Start_Date Start date of platform operation. Type: compound Mandatory Not repeatable Parent: Platform_Information Platform_Start_Date = Single_Date/Time Point_Position_In_Pixel The point in the pixel corresponding to the earth location of the pixel. Type: text Domain: center lower left corner lower right corner upper left corner upper right corner free text Mandatory Not repeatable Parent: Georectified_Raster Polarization_Characteristics Degree of polarization of band. Type: compound Mandatory-if-applicable Repeatable Parent: Wavelength_Band_Properties Polarization_Characteristics = Receiver_Polarization + 0{Sender_Polarization}1 Polynomial_Coefficient The coefficient of one term in the numerator or denominator of a polynomial function. (Note: For a polynomial numerator or denominator of order m, there will be m+1 coefficients. Any of these coefficients, except that of the m power term, may be zero. When the function is linear, the coefficient of the zero-power term is the offset and the coefficient of the first power term is the scale factor.) Type: real Domain: free real Mandatory Repeatable Parent: Polynomial_Numerator Polynomial_Denominator Polynomial_Denominator The divisor of a polynomial function that is a ratio. (Note: If absent, assumed equal to 1.) Type: compound Mandatory-if-applicable Not repeatable Parent: Polynomial_Function Polynomial_Denominator = Number_of_Denominator_Terms + 1{Polynomial_Coefficient}n Polynomial_Function A function in successive powers of the independent variable, or the ratio of such functions, used in a transformation, one example of which is scaling, derivation of a set of values on one scale or coordinate system from the value in another, in the sense derived value = polynomial (initial value). Type: compound Conditional - present and mandatory if and only if Non_Polynomial_Scaling is absent Not repeatable Parent: Data_Scaling_Information Polynomial_Function = Polynomial_Numerator + 0{Polynomial_Denominator}1 Polynomial_Numerator The polynomial function when not a ratio, and the dividend of the ratio when it is. Type: compound Mandatory Not repeatable Parent: Polynomial_Function Polynomial_Numerator = Number_of_Numerator_Terms + 1{Polynomial_Coefficient}n Positional_Information Orientation of instrument and detector projection. Type: compound Mandatory Repeatable Parent: Instrument_Specific_Georeferencing Positional_Information = Projection_Center_X_Position + Projection_Center_Y_Position + Projection_Center_Z_Position + Roll + Pitch + Yaw + Attitude_Angular_Units Principal_Point_of_Autocollimation The point (x0, y0) where the plumb line coming from the projection center crosses the image plane, given in millimeters in the image coordinate system, determined by projecting an illuminated object to infinity, reflecting its image from a flat mirror surface, and adjusting the instrument until both the object and image are in focus at the same plane. Type: compound Mandatory-if-applicable Not repeatable Parent: Frame_Geometric_Properties Principal_Point_of_Autocollimation = Location_Information Principal_Point_of_Symmetry The coordinate of the center of the circles of equal distortion of the lens (xs,ys) in millimeters in the image coordinate system. Type: compound Optional Not repeatable Parent: Frame_Geometric_Properties Principal_Point_of_Symmetry = Location_Information Processing_Change_History Description of the changes in processing procedure from version to version. Type: compound Mandatory-if-applicable Not repeatable Parent: Processing_Information Processing_Change_History = 1{Process_Step}n Processing_Documentation Reference to documentation describing the processing. Type: compound Optional Repeatable Parent: Processing_Information Processing_Documentation = Citation_Information Processing_Environment The environment in which the processing was carried out, including, but not limited to, the platform, the operating system name and version, and other configuration control information. Type: compound Mandatory Not repeatable Parent: Processing_Procedure Processing_Environment = Native_Data_Set_Environment Processing_Identifiers Information to identify processing package that produced the data. Type: compound Mandatory Not repeatable Parent: Processing_Information Processing_Identifiers = Citation_Information Processing_Information Comprehensive information about the procedure by which the algorithm was applied to derive geographic data from the raw instrument measurements, such as datasets, software used, and the processing environment. Type: compound Optional Not repeatable Parent: Process_Step Processing_Information = Processing_Identifiers + 1{Processing_Input_Dataset}n + (1{Ancillary_Dataset}n) + Processing_Software + Processing_Procedure + 0{Processing_Change_History}1 + (1{Processing_Documentation}n) Processing_Input_Dataset The data used as input to single or multistage processing used to derive product. Type: compound Mandatory Repeatable Parent: Processing_Information Processing_Input_Dataset = Input_Dataset_Identifier + [Input_Description | Input_Reference] + 0{Input_Level}1 Processing_Level Degree of data processing applied to the measurements, as exemplified in Appendixes AC. Type: compound Mandatory-if-applicable Repeatable Parent: Identification_Information Processing_Level = Processing_Level_Identifier + Processing_Level_Authority Processing_Level_Authority Reference for the definition of the product level designations used. Type: compound Mandatory Not repeatable Parent: Processing_Level Processing_Level_Authority = Citation_Information Processing_Level_Identifier Data distributor's code that identifies the level of data processing applied to the measurements, as defined in Processing_Level_Authority. Appendixes A-C show examples. Type: text Domain: free text Mandatory Not repeatable Parent: Processing_Level Processing_Procedure Description of decision parameters in and circumstances and methods of processing. Type: compound Mandatory Not repeatable Parent: Processing_Information Processing_Procedure = Processing_Run_History + Processing_Environment + (Processing_Procedure_Description) Processing_Procedure_Description Additional details about the processing procedure. Type: text Domain: free text Optional Not repeatable Parent: Processing_Procedure Processing_Run_History History of processing runs that create data set described by metadata. Type: compound Mandatory Not repeatable Parent: Processing_Procedure Processing_Run_History = 1{Process_Step}n Processing_Software The computer programs used to process data from one level to another. Type: compound Mandatory Not repeatable Parent: Processing_Information Processing_Software = [Processing_Software_Description | Processing_Software_Reference] Processing_Software_Description Text description of processing software. Type: text Domain: free text Conditional - present and mandatory if and only if Processing_Software_Reference is absent Not repeatable Parent: Processing_Software Processing_Software_Reference Reference to document describing processing software. Type: compound Conditional - present and mandatory if and only if Processing_Software_Description is absent Not repeatable Parent: Processing_Software Processing_Software_Reference = Citation_Information Profile_Description Additional information about profile measurements, in text form. Type: text Domain: free text Optional Not repeatable Parent: Profile_Properties Profile_Extent Distance between end and start of profile range, in Scan_Distance_Units. Type: real Domain: Profile_Extent > 0.0 Conditional - present and mandatory if and only if Profile_Step is absent Not repeatable Parent: Profile_Sounding Profile_Fixed Fixed profile level at which scanning is taking place. Type: real Domain: Profile_Fixed > 0.0 Conditional - present and mandatory if and only if Profile_Sounding is absent Not repeatable Parent: Profile_Properties Profile_Properties Description of data sampling in vertical direction. Type: compound Mandatory-if-applicable Not repeatable Parent: Scan_Geometric_Properties Profile_Properties = [Profile_Sounding | Profile_Fixed] + (Profile_Description) Profile_Sounding Description of process of profile sampling. Type: compound Conditional - present and mandatory if and only if Profile_Fixed is absent Not repeatable Parent: Profile_Properties Profile_Sounding = Number_of_Profile_Samples + Profiling_Direction + Profile_Start + [Profile_Extent | Profile_Step] Profile_Start Height of start of profile measurements. Type: real Domain: Profile_Start > 0.0 Mandatory Not repeatable Parent: Profile_Sounding Profile_Step Distance between profile steps, in Scan_Distance_Units. Type: real Domain: Profile_Step > 0.0 Conditional - present and mandatory if and only if Profile_Extent is absent Not repeatable Parent: Profile_Sounding Profiling_Direction Direction of sequence of heights at which profile measurements are made. Type: text Domain: upward downward Mandatory Not repeatable Parent: Profile_Sounding Projection_Center_X_Position X-component of the position of the projection center in the ground coordinate system defined under Horizontal_Coordinate_System_Definition. Type: real Domain: free real Mandatory Not repeatable Parent: Positional_Information Projection_Center_Y_Position Y-component of the position of the projection center in the ground coordinate system defined under Horizontal_Coordinate_System_Definition. Type: real Domain: free real Mandatory Not repeatable Parent: Positional_Information Projection_Center_Z_Position Z-component of the position of the projection center in the ground coordinate system defined under Vertical_Coordinate_System_Definition. Type: real Domain: free real Mandatory Not repeatable Parent: Positional_Information Quality_of_Autocollimation_Principal_Point_x_Value Standard deviation, in millimeters, of the x-position of the principal point of autocollimation. Type: real Domain: Quality_of_Autocollimation_Principal_Point_x_Value >= 0.0 Mandatory Not repeatable Parent: Quality_of_Principal_Point_of_Autocollimation Quality_of_Autocollimation_Principal_Point_y_Value Standard deviation, in millimeters, of the y-position of the principal point of autocollimation. Type: real Domain: Quality_of_Autocollimation_Principal_Point_y_Value >= 0.0 Mandatory Not repeatable Parent: Quality_of_Principal_Point_of_Autocollimation Quality_of_Focal_Length The standard deviation in millimeters of the calibrated focal length. Type: real Domain: Quality_of_Focal_Length > 0.0 Optional Not repeatable Parent: Frame_Optics Quality_of_Principal_Point_of_Autocollimation Uncertainty in the location of the principal point of autocollimation. Type: compound Optional Not repeatable Parent: Frame_Geometric_Properties Quality_of_Principal_Point_of_Autocollimation = Quality_of_Autocollimation_Principal_Point_x_Value + Quality_of_Autocollimation_Principal_Point_y_Value Quality_of_Principal_Point_of_Symmetry Uncertainty in the location of the principal point of symmetry. Type: compound Optional Not repeatable Parent: Frame_Geometric_Properties Quality_of_Principal_Point_of_Symmetry = Quality_of_Symmetry_Principal_Point_x_Value + Quality_of_Symmetry_Principal_Point_y_Value Quality_of_Symmetry_Principal_Point_x_Value Standard deviation, in millimeters, of the x-position of the principal point of symmetry. Type: real Domain: Quality_of_Symmetry_Principal_Point_x_Value >= 0.0 Mandatory Not repeatable Parent: Quality_of_Principal_Point_of_Symmetry Quality_of_Symmetry_Principal_Point_y_Value Standard deviation, in millimeters, of the y-position of the principal point of symmetry. Type: real Domain: Quality_of_Symmetry_Principal_Point_y_Value > 0.0 Mandatory Not repeatable Parent: Quality_of_Principal_Point_of_Symmetry Radial_Asymmetrical_Coefficient_B1 Value for B1 to be used in the formula given in the definition of Distortion_Type_Radial_Asymmetrical. Type: real Domain: free real Mandatory Not repeatable Parent: Distortion_Type_Radial_Asymmetrical Radial_Asymmetrical_Coefficient_B2 Value to be used for B2 in the formula given in the definition of Distortion_Type_Radial_Asymmetrical. Type: real Domain: free real Mandatory Not repeatable Parent: Distortion_Type_Radial_Asymmetrical Radial_Symmetrical_Angle_Interval Interval in angle at which distortion values are available, given in degrees. Type: real Domain: Radial_Symmetrical_Angle_Interval > 0.0 Mandatory Not repeatable Parent: Angle_Dependent_Distortion Radial_Symmetrical_Distance_Interval Radial intervals at which distortion values are available, given in millimeters. Type: real Domain: Radial_Symmetrical_Distance_Interval > 0.0 Mandatory Not repeatable Parent: Distance_Dependent_Distortion Radial_Symmetrical_Distortion_Polynomial Lens distortion in micrometers that is a function of the distance to the principal point of best symmetry, presented in the form of an odd-power polynomial: r = K0 * r + K1 * r3 + K2 * r5 + K3 * r7 . . . Type: compound Conditional - present and mandatory if and only if Distance_Dependent_Distortion and Angle_Dependent_Distortion are absent Not repeatable Parent: Distortion_Type_Radial_Symmetrical Radial_Symmetrical_Distortion_Polynomial = Polynomial_Function Receiver_Polarization Polarization direction that a receiver is designed to accept. Type: text Domain: horizontal vertical left circular right circular free text Mandatory Not repeatable Parent: Polarization_Characteristics Referenced_Coordinate_System Coordinate system that can be georeferenced.. Type: compound conditional - present and mandatory if and only if Unreferenced_Coordinate_System is not present Not repeatable Parent: Coordinate_System Referenced_Coordinate_System = Spatial_Reference_Information Referencing_Polynomial Polynomial function used to relate image and ground positions. Type: compound Conditional - mandatory if neither Ground_Control_Point_Information, Instrument_Specific_Georeferencing, nor Other_Georeferencing_Description is present; otherwise optional Not repeatable Parent: Georeferencing_Description Referencing_Polynomial = Polynomial_Function Relative_Aperture Ratio of focal length of camera to diameter of opening through which camera gathers light. Type: real Domain: Relative_Aperture > 0.0 Optional Not repeatable Parent: Frame_Optics Relative_Azimuth The angle at the viewed point, measured in the horizontal plane at the viewed point, clockwise in degrees from the azimuth of the Sun to the azimuth of the satellite. Type: real Domain: -180.0 <= Relative_Azimuth <= 180.0 Mandatory-if-applicable Not repeatable Parent: Acquisition_Information Reseau Calibrated positions of engraved réseau-crosses that are pressed against the film during exposure, given in millimeters in the image coordinate system. Type: compound Conditional - present and mandatory if and only if Fiducial and Sensor_System are absent Not repeatable Parent: Frame_Geometric_Properties Reseau = Location_Information Resolution_Value_Set Resolving power of the camera at different field angles. Type: compound Mandatory Repeatable Parent: Photographic_Resolving_Power Resolution_Value_Set = Resolving_Angle + Resolving_Value_Radial + Resolving_Value_Tangential Resolving_Angle A field angle at which values of the resolving power are available. Type: real Domain: Resolving_Angle >= 0.0 Mandatory Not repeatable Parent: Resolution_Value_Set Resolving_Value_Radial Resolving power in radial direction, given in line pairs per millimeter. Type: real Domain: Resolving_Value_Radial > 0.0 Mandatory Not repeatable Parent: Resolution_Value_Set Resolving_Value_Tangential Resolving power in tangential direction, given in line pairs per millimeter. Type: real Domain: Resolving_Value_Tangential > 0.0 Mandatory Not repeatable Parent: Resolution_Value_Set Right_Ascension_of_Ascending_Node The right ascension (angle eastward from the vernal equinox) where the satellite orbit crosses the equator, moving northward, in units given by Orbit_Angle_Units. Type: real Domain: 0.0 <= Right_Ascension_of_Ascending_Node < 360.0 Mandatory Not repeatable Parent: Keplerian_Orbit Roll Roll angle omega of image coordinate system relative to ground coordinate system, in units defined by Attitude_Angular_Units, measured clockwise around the positive x-axis (the direction of motion). Type: real Domain: free real Mandatory Not repeatable Parent: Positional_Information Roll_Accuracy Standard deviation of roll angle, omega, in same units as angle. Type: real Domain: Roll_Accuracy >= 0.0 Mandatory Not repeatable Parent: Exterior_Orientation_Accuracy Rotation_Description Description of direction of instrument components relative to platform axes. Type: text Domain: free text Optional Not repeatable Parent: Sensor_Orientation Rotation_Sequence Sequence of rotations in roll, pitch and yaw: 1 represents roll, 2 represents pitch, and 3 represents yaw, such that "132" would represent a rotation in the sequence roll, yaw, pitch. Type: text Domain: 123 132 213 231 312 321 Mandatory Not repeatable Parent: Instrument_Specific_Georeferencing Row Sequential number assigned to frame latitudinal center line along a path. Type: integer Domain: 0 < Row <= 248 Mandatory Not repeatable Parent: Worldwide_Reference_System Row_Delta_X Increment xm in map x-coordinates corresponding to increment of one grid row; a negative value means that map x-coordinate decreases with increasing row number. Type: real Domain: free real Mandatory Not repeatable Parent: Grid_Orientation Row_Delta_Y Increment ym in map y-coordinates corresponding to increment of one grid row; a negative value means that map y-coordinate decreases with increasing row number. Type: real Domain: free real Mandatory Not repeatable Parent: Grid_Orientation Sample_Angle_Units Units in which angles are measured in pixel description. Type: text Domain: degrees radians arcminutes arcseconds free text Mandatory-if-applicable Not repeatable Parent: Sample_Description_Units Sample_Description_Units Units in which pixel properties are provided. Type: compound Mandatory Not repeatable Parent: Sample_Properties Sample_Description_Units = 0{Sample_Angle_Units}1 + 0{Sample_Profile_Units}1 Sample_Profile_Units Units used to measure profile heights and distances. Type: compound Mandatory-if-applicable Not repeatable Parent: Sample_Description_Units Sample_Profile_Units = Altitude_Distance_Units Sample_Properties Description of sensor pixel properties. Type: compound Mandatory Not repeatable Parent: Scan Sample_Properties = Sample_Description_Units + 1{Pixel_Description}n Satellite/Local_Azimuth_Angle The angle at the viewed point, measured in the horizontal plane at the viewed point, between the north direction and the direction to the satellite, measured in degrees eastward from north. Type: real Domain: -180.0 <= Satellite/Local_Azimuth_Angle <= 180.0 Mandatory Not repeatable Parent: Acquisition_Information Satellite/Local_Zenith_Angle The angle at the viewed point between the zenith at the viewed point and the satellite, in degrees. Type: real Domain: -180.0 <= Satellite/Local_Zenith_Angle <= 180.0 Mandatory Not repeatable Parent: Acquisition_Information Scan Properties of sensor whose detector view moves over the ground in a direction roughly perpendicular to the track of a moving point. Type: compound Conditional - present and mandatory if and only if Frame_Camera and Other_Collector_Description are absent Not repeatable Parent: Instrument_Description Scan = 1{Scan_Geometric_Properties}n + Sample_Properties + Scan_Radiometric_Properties + 0{Scan_Spectral_Properties}1 Scan_Angle_Units Units in which angles are measured in scan description. Type: text Domain: degrees radians arcminutes arcseconds free text Mandatory Not repeatable Parent: Scan_Geometric_Properties Scan_Cross_Track_Properties Description of data sampling in direction approximately perpendicular to track in horizontal direction. Type: compound Mandatory-if-applicable Not repeatable Parent: Scan_Geometric_Properties Scan_Cross_Track_Properties = Cross_Track_Zero + [Cross_Track_Sweep | Cross_Track_Fixed_Angle] + (Cross_Track_Description) Scan_Distance_Units Units in which distance is measured in scan description. Type: text Domain: meters kilometers free text Mandatory Not repeatable Parent: Scan_Geometric_Properties Scan_Duration Duration of a single scan, in Scan_Time_Units. Type: real Domain: Scan_Duration > 0.0 Conditional - present and mandatory if and only if Scan_Step_Time is absent Not repeatable Parent: Scan_Timing Scan_Elevation_Properties Description of data sampling in direction approximately perpendicular to track and cross-track sweep direction. Type: compound Mandatory-if-applicable Not repeatable Parent: Scan_Geometric_Properties Scan_Elevation_Properties = Elevation_Zero + [Elevation_Sweep | Elevation_Fixed_Angle] + (Elevation_Description) Scan_Geometric_Properties Spatial and temporal description of scan. Type: compound Mandatory Repeatable Parent: Scan Scan_Geometric_Properties = Scan_Angle_Units + Scan_Time_Units + Scan_Distance_Units + 0{Scan_Cross_Track_Properties}1 + 0{Scan_Elevation_Properties}1 + 0{Profile_Properties}1 + (Scan_Timing) + Instantaneous_Field_of_View Scan_Radiometric_Properties Function used to convert quantity in detector units to physical units. Type: compound Mandatory Not repeatable Parent: Scan Scan_Radiometric_Properties = Data_Scaling_Information Scan_Repeat_Time Time between the start of one scan and the next, in Scan_Time_Units. Type: real Domain: Scan_Repeat_Time > 0.0 Mandatory Not repeatable Parent: Scan_Timing Scan_Spectral_Properties Design specifications for wavelength-dependent scanner properties. Type: compound Mandatory-if-applicable Not repeatable Parent: Scan Scan_Spectral_Properties = Spectral_Information Scan_Start_Time Time at start of scan. Type: compound Mandatory Not repeatable Parent: Scan_Timing Scan_Start_Time = Single_Date/Time Scan_Step_Time Time for one step in scan, in Scan_Time_Units. Type: real Domain: Scan_Step_Time > 0.0 Conditional - present and mandatory if and only if Scan_Duration is absent Not repeatable Parent: Scan_Timing Scan_Time_Units Units in which time is measured in scan description. Type: text Domain: seconds minutes microseconds free text Mandatory Not repeatable Parent: Scan_Geometric_Properties Scan_Timing Schedule for scans. Type: compound Optional Not repeatable Parent: Scan_Geometric_Properties Scan_Timing = Scan_Start_Time + [Scan_Duration | Scan_Step_Time] + Scan_Repeat_Time Science_Paper Reference information for scientific papers relevant to the dataset. Type: compound Optional Repeatable Parent: Documentation Science_Paper = Citation_Information Semimajor_Axis Semimajor axis of platform orbit, in kilometers. Type: real Domain: 6378.2 < Semimajor axis < 2.61x105 Conditional - mandatory if Orbit_Period is absent; otherwise optional Not repeatable Parent: Keplerian_Orbit Sender_Polarization Polarization of radiation emitted as part of a measurement system. Type: text Domain: horizontal vertical left circular right circular free text Mandatory-if-applicable Not repeatable Parent: Polarization_Characteristics Sensor_Element_Location Physical position of individual scanner pixels, in the image coordinate system. Type: compound Optional Not repeatable Parent: Frame_Geometric_Properties Sensor_Element_Location = Availability_of_Element_Locations + (Source_of_Element_Locations) Sensor_Grid Number of cells along axes of sensor grid. Type: compound Mandatory Not repeatable Parent: Sensor_System Sensor_Grid = Raster_Object_Type Sensor_Orientation Positioning and direction of instrument components on platform. Type: compound Optional Not repeatable Parent: Instrument_Description Sensor_Orientation = Axes + (Rotation_Description) + (Translation_Description) Sensor_System Image coordinate system defined by the pixels of the scanner. Type: compound Conditional - present and mandatory if and only if Fiducial and Reseau are absent Not repeatable Parent: Frame_Geometric_Properties Sensor_System = Sensor_Grid + Calibrated_Detector_Positions Solar_Azimuth_Angle The angle at the viewed point, measured in the horizontal plane at the viewed point, between the north direction and the direction to the Sun, measured in degrees eastward from north. Type: real Domain: -180.0 <= Solar_Azimuth_Angle <= 180.0 Mandatory Not repeatable Parent: Acquisition_Information Solar_Zenith_Angle The angle at the viewed point between the zenith at the viewed point and the Sun, in degrees. Type: real Domain: -180.0 <= Solar_Zenith_Angle <= 180.0 Mandatory Not repeatable Parent: Acquisition_Information Source_of_Element_Locations Citation for reference providing sensor element location information. Type: compound Optional Not repeatable Parent: Sensor_Element_Location Source_of_Element_Locations = Citation_Information Spatial_Resolution_Units Units in which spatial resolution is expressed. Type: text Domain: meters kilometers degrees free text Mandatory Not repeatable Parent: Nominal_Spatial_Resolution Spatial_Resolution_Value Quantitative measure of designed instrument spatial resolution, in units given by Spatial_Resolution_Units. Type: real Domain: Spatial_Resolution_Value > 0.0 Mandatory Not repeatable Parent: Nominal_Spatial_Resolution Spectral_Information Wavelength-dependent properties of optical systems. Type: compound Mandatory Not repeatable Parent: Scan_Spectral_Properties Spectral_Information = Number_of_Wavelength_Bands + 1{Wavelength_Band_Properties}n Spectral_Limit Maximum wavelength, in nanometers, at which focus of lens is judged accurate, errors due to chromatic aberration being too large at longer wavelengths. Type: real Domain: Spectral_Limit > 0.0 Optional Not repeatable Parent: Frame_Spectral_Properties Stabilized_Mount Type of stabilized mount used during the photo flight. Type: text Domain: T_AS CCNS4 free text Optional Not repeatable Parent: Frame_Operation Storage_Order Description of which index varies most rapidly in the sequential storage of raster elements row index (row major) or column index (column major). Type: text Domain: row major column major free text Mandatory Not repeatable Parent: Georectified_Raster Swath_Track_Information Properties of the swath track on the ground. Type: compound Mandatory-if-applicable Not repeatable Parent: Georeferenceable_Raster Swath_Track_Information = Ground_Shape + Cross_Track_Motion Thematic_Layer_Identification Listing of the kinds of geospatial information represented by the dataset. Type: compound Conditional - present and mandatory if and only if Band_Identification is absent Not repeatable Parent: Identification_Information Thematic_Layer_Identification = Number_of_Thematic_Layers + 1{Layer_Name}n Translation_Description Description of position of instrument components relative to platform axes. Type: text Domain: free text Optional Not repeatable Parent: Sensor_Orientation Type_of_Overlap Information as to whether external frame is along same (overlap) or parallel (sidelap) flight line. Type: text Domain: overlap sidelap free text Mandatory Not repeatable Parent: Multiple_Image_Alignment Unreferenced_Coordinate_System Coordinate system which is not georeferenced and for which georeferencing information is unavailable or irrelevant. Type: text Domain: free text conditional - present and mandatory if and only if Referenced_Coordinate_System is not present Not repeatable Parent: Coordinate_System User's_Guide Reference information for User's Guides. Type: compound Optional Repeatable Parent: Documentation User's_Guide = Citation_Information Wavelength_Band_Properties Design specifications for properties of an individual wavelength range. Type: compound Mandatory Repeatable Parent: Spectral_Information Wavelength_Band_Properties = Wavelength_Units + (Band_Boundary_Definition) + Minimum_Wavelength + Maximum_Wavelength + (Peak_Wavelength) + (Wavelength_Region) + (Nominal_Spatial_Resolution) + (Band_Quality) + 0{Polarization_Characteristics}n + (Band_Description) Wavelength_Region Wavelength of maximum sensitivity within the band, in units specified by Wavelength_Units. Type: text Domain: ultraviolet visible infrared microwave radio free text Optional Not repeatable Parent: Wavelength_Band_Properties Wavelength_Units Units in which band wavelengths are expressed. Type: text Domain: m cm mm m nm free text Mandatory Not repeatable Parent: Wavelength_Band_Properties Worldwide_Reference_System Global notation system for Landsat data. Type: compound Optional Not repeatable Parent: Spatial_Domain Worldwide_Reference_System = Path + Row X_Axis_Definition Direction of instrument x-axis. Type: text Domain: up down forward backward left right north south east west free text Mandatory Not repeatable Parent: Axes X_Position_Accuracy Standard deviation of x coordinate of projection center. Type: real Domain: X_Position_Accuracy >= 0.0 Mandatory Not repeatable Parent: Exterior_Orientation_Accuracy Y_Axis_Definition Direction of instrument y-axis. Type: text Domain: up down forward backward left right north south east west free text Mandatory Not repeatable Parent: Axes Y_Position_Accuracy Standard deviation of y coordinate of projection center. Type: real Domain: Y_Position_Accuracy >= 0.0 Mandatory Not repeatable Parent: Exterior_Orientation_Accuracy Yaw Yaw angle kappa of image coordinate system relative to ground coordinate system, in units defined by Attitude_Angular_Units, measured clockwise around the positive z-axis (vertical). Type: real Domain: free real Mandatory Not repeatable Parent: Positional_Information Yaw_Accuracy Standard deviation of yaw angle, kappa, in same units as angle. Type: real Domain: Yaw_Accuracy >= 0.0 Mandatory Not repeatable Parent: Exterior_Orientation_Accuracy Z_Axis_Definition Direction of instrument z-axis. Type: text Domain: up down forward backward left right north south east west free text Mandatory Not repeatable Parent: Axes Z_Position_Accuracy Standard deviation of z coordinate of projection center. Type: real Domain: Z_Position_Accuracy >= 0.0 Mandatory Not repeatable Parent: Exterior_Orientation_Accuracy