Survey Identifier: NAV3123
Format Acronym: ARO88
Data Center File Number: 0440-038
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: Jesus M. Anglero
Project: Project Magnet: Project C32-652, Flight 3123 ~ 3.419 Nautical Miles
Survey Departure Date (yyyymmdd): 19860411
Survey Arrival Date (yyyymmdd): 19860411
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: 16828
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +22
Bottommost Latitude: -18
Leftmost Longitude: +179
Rightmost Longitude: -158
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: 16829
Datafile Header Info: PJCT=C32-652 FLGT= 3123 ,MTH= 4,DAY= 11, YR=1986,JDY= 101 -TO- 101,RCD= 16831,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -179.9966
Latitude: -17.3314
Mag Total Intensity Calc nT: 32589
Time Gmt Sec: 24621.7278
Mag East Component Obs nT: 27080
Mag North Component Obs nT: 5037
Mag Horizontal Intensity Calc nT: 27560
Mag Vertical Intensity Obs nT: -25866
Mag Declination Calc Deg: 9.0671
Mag Inclination Calc Deg: -37.5480
Mag Total Intensity Obs nT: 32573
Alt Barometric Ft: 288
Min/Max Data Record:
Longitude: 180.0000
Latitude: 21.3022
Mag Total Intensity Calc nT: 42446
Time Gmt Sec: 62451.9692
Mag East Component Obs nT: 33166
Mag North Component Obs nT: 7602
Mag Horizontal Intensity Calc nT: 33721
Mag Vertical Intensity Obs nT: 22974
Mag Declination Calc Deg: 13.0415
Mag Inclination Calc Deg: 39.6316
Mag Total Intensity Obs nT: 42458
Alt Barometric Ft: 29015