CON File Data - Point Measurement Data (Control)
Field Name | Datatype | CDCS name | NOTE |
Comment_code | Char | n/a | A non-space character in 1st column turns line into a free text comment. A nonspace is used to comment out data so that is is not used in the ensuing adjustment. |
Meas_GCDB_ID | String | none | Unique alphanumeric ID that helps identify the function of a particular point. There is a 6-character standard for points within the PLSS. GMM uses this standard for subdivision of sections. BLM catalogues non-PLSS corners into broad categories using the first three characters of a 6-character ID. |
Meas_Latitude | Numeric | Y coordinate | Positional value measured from a physical monument. Format is DDMMSS.ssss and GMM assumes the value is North Latitude |
Meas_Longitude | Numeric | X coordinate | Positional value measured from a physical monument. Format is DDDMMSS.ssss and GMM assumes the value is West Longitude. |
Elevation | Numeric | Z coordinate | Elevation above mean sea level. Units are assumed feet in GMM. |
North_err_est | Integer | none | Estimated error of Northing (latitude) measured value. Units are assumed feet in GMM |
East_err_est | Integer | none | Estimated error of Easting (longitude) measuered value. Units are assumed feet in GMM. |
Datum | 2 Char | none | Datum the coordinate values are referenced to, such as "North American Datum of 1983". In GMM valid values are 27 means NAD27; 83 means NAD83; HP means High Precision. |
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