Survey Identifier: NAV1129
Format Acronym: ARO88
Data Center File Number: 0480-145
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 C32-552, Flight 1129 ~ 3,211 Nautical Miles
Survey Departure Date (yyyymmdd): 19850321
Survey Arrival Date (yyyymmdd): 19850321
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: 17767
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +36
Bottommost Latitude: +14
Leftmost Longitude: -065
Rightmost Longitude: -017
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: 17768
Datafile Header Info: PJCT=C32-552 FLGT= 1129 ,MTH= 3,DAY= 21, YR=1985,JDY= 80 -TO- 80,RCD= 17769,NAV=ESG ,CMP=INS1
Min/Max Data Record:
Longitude: -64.5495
Latitude: 14.7981
Mag Total Intensity Calc nT: 32600
Time Gmt Sec: 4234.8260
Mag East Component Obs nT: 21903
Mag North Component Obs nT: -8366
Mag Horizontal Intensity Calc nT: 22901
Mag Vertical Intensity Obs nT: 7176
Mag Declination Calc Deg: -20.4944
Mag Inclination Calc Deg: 12.7111
Mag Total Intensity Obs nT: 32701
Alt Barometric Ft: 1011
Min/Max Data Record:
Longitude: -17.4978
Latitude: 35.5020
Mag Total Intensity Calc nT: 49397
Time Gmt Sec: 41250.2676
Mag East Component Obs nT: 31205
Mag North Component Obs nT: -6210
Mag Horizontal Intensity Calc nT: 31890
Mag Vertical Intensity Obs nT: 43764
Mag Declination Calc Deg: -11.8176
Mag Inclination Calc Deg: 62.3770
Mag Total Intensity Obs nT: 49393
Alt Barometric Ft: 25900