Survey Number: NAV1177 
Format Acronymn: ARO8
NGDC File Number: 0430-001
Params: FXD  
Data Rec'd @NGDC (YYMMDD): 890503
Contributing Institution: US Naval Oceanographic Office           
Country: USA               
Platform Name: RP-3D ORION         
Code: 3
Platform Type: PLANE 
Chief Scientist(s): Jesus M. Anglero               
Project: Project Magnet: Project C32-952, Flight 1177   ~ 3,298 Nautical Miles         
Start Date (YYMMDD): 890318
Survey Departure Airport:                                  
End Date (YYMMDD): 890318
Survey Arrival Airport:                                
Flight Line Spacings: N-S: 33 Nautical Miles                  
Magnetometor(s) Used: Vector and Scalar Magnetometers       
Aircraft Altitude: 25,000 FT AG        
Aircraft Velocity: 240 Knots     
Sampling Rates Per Second:   2
Sensor Tow Distance: STINGER
Reference Field:              
Total Observations:      19213
Magnetometor Sensitivity:      0.1 nT
Bounding Limits:
Top Latitude   : +37
Bottom Latitude: +31
Left Longitude : -110
Right Longitude: -103
                                                                             
To remove high frequency noise, a low pass filter has been applied to all the 
flight line data above 15,000 feet.  Data at the beginning and end of a flight
are noisy because the aircraft is maneuvering during it's climb or descent to 
or from survey altitude which is approximately 25,000 feet.  Data below 15,000
feet or climb and descent data are not smoothed.                              
                                                                              
                                                                              
