Survey Identifier: NAV1090
Format Acronym: ARO88
Data Center File Number: 0480-058
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 C32-352: Flight 1090 ~ 2,258 Nautical Miles
Survey Departure Date (yyyymmdd): 19830131
Survey Arrival Date (yyyymmdd): 19830201
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: 11641
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +40
Bottommost Latitude: +28
Leftmost Longitude: -017
Rightmost Longitude: +024
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: 11641
Datafile Header Info: PJCT=C32-352 FLGT= 1090 ,MTH= 1,DAY= 31, YR=1983,JDY= 31 -TO- 31,RCD= 11642,NAV=ESG ,CMP=INS2
Min/Max Data Record:
Longitude: -16.3169
Latitude: 28.4305
Mag Total Intensity Calc nT: 38293
Time Gmt Sec: 0.2764
Mag East Component Obs nT: 25605
Mag North Component Obs nT: -5569
Mag Horizontal Intensity Calc nT: 25616
Mag Vertical Intensity Obs nT: 24567
Mag Declination Calc Deg: -10.9690
Mag Inclination Calc Deg: 39.4898
Mag Total Intensity Obs nT: 38611
Alt Barometric Ft: 1836
Min/Max Data Record:
Longitude: 23.7434
Latitude: 39.0105
Mag Total Intensity Calc nT: 44690
Time Gmt Sec: 86398.2764
Mag East Component Obs nT: 29458
Mag North Component Obs nT: 731
Mag Horizontal Intensity Calc nT: 29927
Mag Vertical Intensity Obs nT: 35782
Mag Declination Calc Deg: 1.5342
Mag Inclination Calc Deg: 54.2283
Mag Total Intensity Obs nT: 44671
Alt Barometric Ft: 28900