Survey Identifier: NAV2074
Format Acronym: ARO88
Data Center File Number: 0570-006
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 2074 ~ 3,193 Nautical Miles
Survey Departure Date (yyyymmdd): 19940131
Survey Arrival Date (yyyymmdd): 19940201
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: 16414
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -20
Bottommost Latitude: -39
Leftmost Longitude: +014
Rightmost Longitude: +056
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: 16414
Datafile Header Info: PJCT=D32-452 FLGT= 2074 ,MTH= 1,DAY= 31, YR=1994,JDY= 31 -TO- 32,RCD= 16416,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: 14.9621
Latitude: -38.0630
Mag Total Intensity Calc nT: 26277
Time Gmt Sec: 0.3510
Mag East Component Obs nT: 9623
Mag North Component Obs nT: -8660
Mag Horizontal Intensity Calc nT: 10546
Mag Vertical Intensity Obs nT: -30183
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 26265
Alt Barometric Ft: 1365
Min/Max Data Record:
Longitude: 55.5842
Latitude: -20.7441
Mag Total Intensity Calc nT: 36621
Time Gmt Sec: 86398.3516
Mag East Component Obs nT: 20239
Mag North Component Obs nT: -3163
Mag Horizontal Intensity Calc nT: 21304
Mag Vertical Intensity Obs nT: -23928
Mag Declination Calc Deg: -13.9085
Mag Inclination Calc Deg: -53.4585
Mag Total Intensity Obs nT: 36607
Alt Barometric Ft: 31499