Survey Identifier: NAV1081
Format Acronym: ARO88
Data Center File Number: 0480-019
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 C32-253: Flight 1081 ~ 2,384 Nautical Miles
Survey Departure Date (yyyymmdd): 19820610
Survey Arrival Date (yyyymmdd): 19820610
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: 12322
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +25
Bottommost Latitude: +13
Leftmost Longitude: -060
Rightmost Longitude: -025
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: 12323
Datafile Header Info: PJCT=C32-253 FLGT= 1081 ,MTH= 6,DAY= 10, YR=1982,JDY= 161 -TO- 161,RCD= 12324,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -59.5268
Latitude: 13.0494
Mag Total Intensity Calc nT: 33071
Time Gmt Sec: 17530.1128
Mag East Component Obs nT: 26896
Mag North Component Obs nT: -9475
Mag Horizontal Intensity Calc nT: 27816
Mag Vertical Intensity Obs nT: 13825
Mag Declination Calc Deg: -18.8085
Mag Inclination Calc Deg: 24.7091
Mag Total Intensity Obs nT: 35691
Alt Barometric Ft: 400
Min/Max Data Record:
Longitude: -25.8711
Latitude: 24.2732
Mag Total Intensity Calc nT: 37257
Time Gmt Sec: 43745.4229
Mag East Component Obs nT: 29068
Mag North Component Obs nT: -6395
Mag Horizontal Intensity Calc nT: 30152
Mag Vertical Intensity Obs nT: 24772
Mag Declination Calc Deg: -13.2124
Mag Inclination Calc Deg: 41.6801
Mag Total Intensity Obs nT: 538789
Alt Barometric Ft: 26000