Survey Identifier: NAV5073
Format Acronym: ARO88
Data Center File Number: 0480-297
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 C32-853, Flight 5073 ~ 1,631 Nautical Miles
Survey Departure Date (yyyymmdd): 19880427
Survey Arrival Date (yyyymmdd): 19880427
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: 9112
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -07
Bottommost Latitude: -19
Leftmost Longitude: +047
Rightmost Longitude: +073
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: 9112
Datafile Header Info: PJCT=C32-853 FLGT= 5073 ,MTH= 04,DAY= 27, YR=1988,JDY= 118 -TO- 118,RCD= 9114,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 47.3822
Latitude: -19.0030
Mag Total Intensity Calc nT: 33058
Time Gmt Sec: 4356.8170
Mag East Component Obs nT: 18892
Mag North Component Obs nT: -5209
Mag Horizontal Intensity Calc nT: 19514
Mag Vertical Intensity Obs nT: -27198
Mag Declination Calc Deg: -14.6689
Mag Inclination Calc Deg: -54.2460
Mag Total Intensity Obs nT: 33056
Alt Barometric Ft: 2400
Min/Max Data Record:
Longitude: 72.4310
Latitude: -7.3969
Mag Total Intensity Calc nT: 40239
Time Gmt Sec: 22950.5198
Mag East Component Obs nT: 32419
Mag North Component Obs nT: -4293
Mag Horizontal Intensity Calc nT: 32707
Mag Vertical Intensity Obs nT: -23174
Mag Declination Calc Deg: -7.5743
Mag Inclination Calc Deg: -35.3546
Mag Total Intensity Obs nT: 40233
Alt Barometric Ft: 24100