Survey Identifier: NAV1231
Format Acronym: ARO88
Data Center File Number: 0570-004
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19940506
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Donald R. Wilson
Project: Project Magnet: Project D32-452, Flight 1231 ~ 2,987 Nautical Miles
Survey Departure Date (yyyymmdd): 19940326
Survey Arrival Date (yyyymmdd): 19940326
Flight Line Spacings: Single Flight Line, Variable Directions
Magnetometers Used: Vector and Scalar Magnetometers
Aircraft Altitude: 25,000 FT AG
Aircraft Velocity: 240 Knots
Sampling Rate: 2
Sensor Tow Distance: STINGER
Total Observations: 16981
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +31
Bottommost Latitude: +13
Leftmost Longitude: -090
Rightmost Longitude: -050
Archive NGDC Tape Letter: W
Additional Documentation: 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.
Number of Data Records: 16981
Datafile Header Info: PJCT=D32-452 FLGT= 1231 ,MTH= 3,DAY= 26, YR=1994,JDY= 85 -TO- 85,RCD= 16983,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -89.1719
Latitude: 13.1194
Mag Total Intensity Calc nT: 35460
Time Gmt Sec: 18581.7637
Mag East Component Obs nT: 24201
Mag North Component Obs nT: -8368
Mag Horizontal Intensity Calc nT: 24202
Mag Vertical Intensity Obs nT: 21693
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 35435
Alt Barometric Ft: 1660
Min/Max Data Record:
Longitude: -50.9780
Latitude: 30.4224
Mag Total Intensity Calc nT: 50109
Time Gmt Sec: 53626.8945
Mag East Component Obs nT: 27120
Mag North Component Obs nT: 323
Mag Horizontal Intensity Calc nT: 28056
Mag Vertical Intensity Obs nT: 43864
Mag Declination Calc Deg: 0.7631
Mag Inclination Calc Deg: 61.0958
Mag Total Intensity Obs nT: 50162
Alt Barometric Ft: 26794