Survey Identifier: NAV3163
Format Acronym: ARO88
Data Center File Number: 0480-265
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 C32-852, Flight 3163 ~ 3,527 Nautical Miles
Survey Departure Date (yyyymmdd): 19880225
Survey Arrival Date (yyyymmdd): 19880225
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: 18568
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +19
Bottommost Latitude: -18
Leftmost Longitude: +121
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: 18570
Datafile Header Info: PJCT=C32-852 FLGT= 3163 ,MTH= 2,DAY= 25, YR=1988,JDY= 56 -TO- 56,RCD= 18578,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 120.9976
Latitude: -17.5974
Mag Total Intensity Calc nT: 36275
Time Gmt Sec: 43804.3779
Mag East Component Obs nT: 32907
Mag North Component Obs nT: -1064
Mag Horizontal Intensity Calc nT: 33194
Mag Vertical Intensity Obs nT: -35075
Mag Declination Calc Deg: -1.6402
Mag Inclination Calc Deg: -46.5783
Mag Total Intensity Obs nT: 36268
Alt Barometric Ft: 18000
Min/Max Data Record:
Longitude: 146.6790
Latitude: 18.0307
Mag Total Intensity Calc nT: 48293
Time Gmt Sec: 82897.9131
Mag East Component Obs nT: 39283
Mag North Component Obs nT: 4379
Mag Horizontal Intensity Calc nT: 39286
Mag Vertical Intensity Obs nT: 14507
Mag Declination Calc Deg: 7.5666
Mag Inclination Calc Deg: 21.3232
Mag Total Intensity Obs nT: 48305
Alt Barometric Ft: 26100