Survey Identifier: NAV3161
Format Acronym: ARO88
Data Center File Number: 0480-289
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 3161 ~ 3,736 Nautical Miles
Survey Departure Date (yyyymmdd): 19871214
Survey Arrival Date (yyyymmdd): 19871214
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: 18313
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +25
Bottommost Latitude: +06
Leftmost Longitude: -159
Rightmost Longitude: -110
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: 18315
Datafile Header Info: PJCT=C32-851 FLGT= 3161 ,MTH= 12,DAY= 14, YR=1987,JDY= 348 -TO- 348,RCD= 18317,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -158.1173
Latitude: 6.9496
Mag Total Intensity Calc nT: 32949
Time Gmt Sec: 16165.6659
Mag East Component Obs nT: 26879
Mag North Component Obs nT: 4541
Mag Horizontal Intensity Calc nT: 27370
Mag Vertical Intensity Obs nT: 10839
Mag Declination Calc Deg: 8.7866
Mag Inclination Calc Deg: 19.1993
Mag Total Intensity Obs nT: 32936
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: -110.3560
Latitude: 24.0459
Mag Total Intensity Calc nT: 44419
Time Gmt Sec: 54197.3130
Mag East Component Obs nT: 30840
Mag North Component Obs nT: 5436
Mag Horizontal Intensity Calc nT: 31219
Mag Vertical Intensity Obs nT: 34212
Mag Declination Calc Deg: 11.2176
Mag Inclination Calc Deg: 50.5781
Mag Total Intensity Obs nT: 44444
Alt Barometric Ft: 29100