Survey Identifier: NAV2073
Format Acronym: ARO88
Data Center File Number: 0570-005
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 2073 ~ 2,805 Nautical Miles
Survey Departure Date (yyyymmdd): 19940124
Survey Arrival Date (yyyymmdd): 19940125
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: 14552
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -07
Bottommost Latitude: -35
Leftmost Longitude: -017
Rightmost Longitude: +018
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: 14552
Datafile Header Info: PJCT=D32-452 FLGT= 2073 ,MTH= 1,DAY= 24, YR=1994,JDY= 24 -TO- 25,RCD= 14554,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -16.1331
Latitude: -34.2261
Mag Total Intensity Calc nT: 25495
Time Gmt Sec: 0.3100
Mag East Component Obs nT: 10604
Mag North Component Obs nT: -7064
Mag Horizontal Intensity Calc nT: 11582
Mag Vertical Intensity Obs nT: -26570
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 25488
Alt Barometric Ft: 997
Min/Max Data Record:
Longitude: 17.2688
Latitude: -7.9958
Mag Total Intensity Calc nT: 29664
Time Gmt Sec: 86398.3125
Mag East Component Obs nT: 20349
Mag North Component Obs nT: -3323
Mag Horizontal Intensity Calc nT: 21501
Mag Vertical Intensity Obs nT: -18202
Mag Declination Calc Deg: -14.6385
Mag Inclination Calc Deg: -40.2499
Mag Total Intensity Obs nT: 29643
Alt Barometric Ft: 29649