Survey Identifier: NAV3155
Format Acronym: ARO88
Data Center File Number: 0480-283
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 C32-851, Flight 3155 ~ 3,449 Nautical Miles
Survey Departure Date (yyyymmdd): 19871112
Survey Arrival Date (yyyymmdd): 19871112
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: 18055
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +22
Bottommost Latitude: -04
Leftmost Longitude: -159
Rightmost Longitude: -147
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: 18056
Datafile Header Info: PJCT=C32-851 FLGT= 3155 ,MTH= 11,DAY= 12, YR=1987,JDY= 316 -TO- 316,RCD= 18058,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -158.2859
Latitude: -3.1744
Mag Total Intensity Calc nT: 23797
Time Gmt Sec: 25981.1848
Mag East Component Obs nT: 23371
Mag North Component Obs nT: -80799
Mag Horizontal Intensity Calc nT: 23660
Mag Vertical Intensity Obs nT: -2142
Mag Declination Calc Deg: -52.8426
Mag Inclination Calc Deg: -3.7064
Mag Total Intensity Obs nT: 32357
Alt Barometric Ft: -200
Min/Max Data Record:
Longitude: -147.9037
Latitude: 21.3038
Mag Total Intensity Calc nT: 108387
Time Gmt Sec: 64859.6138
Mag East Component Obs nT: 105962
Mag North Component Obs nT: 77151
Mag Horizontal Intensity Calc nT: 106045
Mag Vertical Intensity Obs nT: 35648
Mag Declination Calc Deg: 50.5628
Mag Inclination Calc Deg: 40.4116
Mag Total Intensity Obs nT: 36111
Alt Barometric Ft: 28400