Survey Identifier: NAV1141
Format Acronym: ARO88
Data Center File Number: 0440-019
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: Jesus M. Anglero
Project: Project Magnet: Project C32-454, Flight 1141 ~3,212 Nautical Miles
Survey Departure Date (yyyymmdd): 19850906
Survey Arrival Date (yyyymmdd): 19850906
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: 16627
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +83
Bottommost Latitude: +57
Leftmost Longitude: -069
Rightmost Longitude: +002
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: 16628
Datafile Header Info: PJCT=C32-554 FLGT= 1141 ,MTH= 9,DAY= 6, YR=1985,JDY= 249 -TO- 249,RCD= 16796,NAV=ESG ,CMP=INS2
Min/Max Data Record:
Longitude: -68.8029
Latitude: 57.6245
Mag Total Intensity Calc nT: 0
Time Gmt Sec: 21797.9409
Mag East Component Obs nT: 0
Mag North Component Obs nT: -5584
Mag Horizontal Intensity Calc nT: 0
Mag Vertical Intensity Obs nT: 0
Mag Declination Calc Deg: -72.7931
Mag Inclination Calc Deg: 0.0000
Mag Total Intensity Obs nT: 49458
Alt Barometric Ft: 400
Min/Max Data Record:
Longitude: 1.3433
Latitude: 82.3356
Mag Total Intensity Calc nT: 56680
Time Gmt Sec: 55986.9976
Mag East Component Obs nT: 16206
Mag North Component Obs nT: 0
Mag Horizontal Intensity Calc nT: 16364
Mag Vertical Intensity Obs nT: 56522
Mag Declination Calc Deg: 0.0000
Mag Inclination Calc Deg: 85.9195
Mag Total Intensity Obs nT: 56678
Alt Barometric Ft: 26000