Survey Identifier: NAV1074
Format Acronym: ARO88
Data Center File Number: 0480-017
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19890906
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Fred M. Valentine
Project: Project Magnet: Project C32-252: Flight 1074 ~ 3,499 Nautical Miles
Survey Departure Date (yyyymmdd): 19820303
Survey Arrival Date (yyyymmdd): 19820303
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: 16072
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +39
Bottommost Latitude: -08
Leftmost Longitude: -077
Rightmost Longitude: -032
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: 16072
Datafile Header Info: PJCT=C32-252 FLGT= 1074 ,MTH= 3,DAY= 3, YR=1982,JDY= 62 -TO- 62,RCD= 16073,NAV=INS2,CMP=INS2
Min/Max Data Record:
Longitude: -76.2183
Latitude: -7.8538
Mag Total Intensity Calc nT: 26042
Time Gmt Sec: 19351.3230
Mag East Component Obs nT: 20053
Mag North Component Obs nT: -10029
Mag Horizontal Intensity Calc nT: 20349
Mag Vertical Intensity Obs nT: -7300
Mag Declination Calc Deg: -22.7501
Mag Inclination Calc Deg: -16.2607
Mag Total Intensity Obs nT: 26074
Alt Barometric Ft: 4983
Min/Max Data Record:
Longitude: -32.5372
Latitude: 38.3476
Mag Total Intensity Calc nT: 54714
Time Gmt Sec: 56143.8018
Mag East Component Obs nT: 27717
Mag North Component Obs nT: -3378
Mag Horizontal Intensity Calc nT: 29312
Mag Vertical Intensity Obs nT: 50763
Mag Declination Calc Deg: -9.5019
Mag Inclination Calc Deg: 68.1541
Mag Total Intensity Obs nT: 54705
Alt Barometric Ft: 28900