Survey Identifier: NAV3081


Format Acronym: ARO88
Data Center File Number: 0480-074
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 C32-353: Flight 3081 ~ 3,865 Nautical Miles
Survey Departure Date (yyyymmdd): 19830615
Survey Arrival Date (yyyymmdd): 19830615
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: 20785
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +21
Bottommost Latitude: +13
Leftmost Longitude: +144
Rightmost Longitude: +174
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: 20786
Datafile Header Info: PJCT=C32-353 FLGT= 3081 ,MTH= 6,DAY= 15, YR=1983,JDY= 166 -TO- 166,RCD= 20787,NAV=ESG ,CMP=INS1

Min/Max Data Record:
Longitude: 144.7623
Latitude: 13.8540
Mag Total Intensity Calc nT: 33347
Time Gmt Sec: 32847.1719
Mag East Component Obs nT: 29241
Mag North Component Obs nT: -149
Mag Horizontal Intensity Calc nT: 29576
Mag Vertical Intensity Obs nT: 7404
Mag Declination Calc Deg: -0.2506
Mag Inclination Calc Deg: 11.7275
Mag Total Intensity Obs nT: 0
Alt Barometric Ft: 6800

Min/Max Data Record:
Longitude: 173.0257
Latitude: 20.8908
Mag Total Intensity Calc nT: 37465
Time Gmt Sec: 76959.5146
Mag East Component Obs nT: 35683
Mag North Component Obs nT: 5039
Mag Horizontal Intensity Calc nT: 35700
Mag Vertical Intensity Obs nT: 16890
Mag Declination Calc Deg: 9.3368
Mag Inclination Calc Deg: 29.7302
Mag Total Intensity Obs nT: 37488
Alt Barometric Ft: 27900