Survey Identifier: NAV3112
Format Acronym: ARO88
Data Center File Number: 0480-168
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 C32-553, Flight 3112 ~ 3,810 Nautical Miles
Survey Departure Date (yyyymmdd): 19850520
Survey Arrival Date (yyyymmdd): 19850520
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: 19240
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +14
Bottommost Latitude: +02
Leftmost Longitude: +143
Rightmost Longitude: +166
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: 19240
Datafile Header Info: PJCT=C32-553 FLGT= 3112 ,MTH= 5,DAY= 20, YR=1985,JDY= 140 -TO- 140,RCD= 19242,NAV=ESG ,CMP=INS1
Min/Max Data Record:
Longitude: 143.9802
Latitude: 2.6510
Mag Total Intensity Calc nT: 34119
Time Gmt Sec: 37898.4746
Mag East Component Obs nT: 33677
Mag North Component Obs nT: 522
Mag Horizontal Intensity Calc nT: 34075
Mag Vertical Intensity Obs nT: -7326
Mag Declination Calc Deg: 0.8347
Mag Inclination Calc Deg: -11.2056
Mag Total Intensity Obs nT: 34118
Alt Barometric Ft: 1300
Min/Max Data Record:
Longitude: 165.2091
Latitude: 13.5592
Mag Total Intensity Calc nT: 37731
Time Gmt Sec: 78667.4658
Mag East Component Obs nT: 36943
Mag North Component Obs nT: 5537
Mag Horizontal Intensity Calc nT: 37031
Mag Vertical Intensity Obs nT: 7247
Mag Declination Calc Deg: 9.1374
Mag Inclination Calc Deg: 11.4540
Mag Total Intensity Obs nT: 37669
Alt Barometric Ft: 27100