Survey Identifier: NAV1132
Format Acronym: ARO88
Data Center File Number: 0480-147
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 1132 ~ 3,439 Nautical Miles
Survey Departure Date (yyyymmdd): 19850127
Survey Arrival Date (yyyymmdd): 19850127
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: 21310
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +39
Bottommost Latitude: +14
Leftmost Longitude: -077
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: 21311
Datafile Header Info: PJCT=C32-552 FLGT= 1132 ,MTH= 1,DAY= 27, YR=1985,JDY= 27 -TO- 27,RCD= 21312,NAV=ESG ,CMP=INS2
Min/Max Data Record:
Longitude: -76.3126
Latitude: 14.7962
Mag Total Intensity Calc nT: 32604
Time Gmt Sec: 29298.7068
Mag East Component Obs nT: 20068
Mag North Component Obs nT: -8557
Mag Horizontal Intensity Calc nT: 20381
Mag Vertical Intensity Obs nT: 7075
Mag Declination Calc Deg: -19.7530
Mag Inclination Calc Deg: 12.5280
Mag Total Intensity Obs nT: 35687
Alt Barometric Ft: 1460
Min/Max Data Record:
Longitude: -17.5273
Latitude: 38.3205
Mag Total Intensity Calc nT: 54534
Time Gmt Sec: 72175.4297
Mag East Component Obs nT: 31156
Mag North Component Obs nT: -3397
Mag Horizontal Intensity Calc nT: 31856
Mag Vertical Intensity Obs nT: 50511
Mag Declination Calc Deg: -9.5617
Mag Inclination Calc Deg: 67.9232
Mag Total Intensity Obs nT: 54575
Alt Barometric Ft: 23900