Survey Identifier: NAV3170
Format Acronym: ARO88
Data Center File Number: 0480-314
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 3170 ~ 2,551 Nautical Miles
Survey Departure Date (yyyymmdd): 19880512
Survey Arrival Date (yyyymmdd): 19880512
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: 13597
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +21
Bottommost Latitude: +01
Leftmost Longitude: +103
Rightmost Longitude: +121
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: 13597
Datafile Header Info: PJCT=C32-853 FLGT= 3170 ,MTH= 5,DAY= 12, YR=1988,JDY= 133 -TO- 133
Min/Max Data Record:
Longitude: 103.8491
Latitude: 1.1758
Mag Total Intensity Calc nT: 40406
Time Gmt Sec: 53308.7109
Mag East Component Obs nT: 38503
Mag North Component Obs nT: -1155
Mag Horizontal Intensity Calc nT: 38520
Mag Vertical Intensity Obs nT: -12665
Mag Declination Calc Deg: -1.7169
Mag Inclination Calc Deg: -17.6140
Mag Total Intensity Obs nT: 40420
Alt Barometric Ft: 2100
Min/Max Data Record:
Longitude: 120.0915
Latitude: 20.1583
Mag Total Intensity Calc nT: 43249
Time Gmt Sec: 81071.0078
Mag East Component Obs nT: 40491
Mag North Component Obs nT: 284
Mag Horizontal Intensity Calc nT: 40492
Mag Vertical Intensity Obs nT: 19172
Mag Declination Calc Deg: 0.4033
Mag Inclination Calc Deg: 26.3218
Mag Total Intensity Obs nT: 43246
Alt Barometric Ft: 25100