Survey Identifier: NAV1125


Format Acronym: ARO88
Data Center File Number: 0480-160
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 1125 ~ 3,462 Nautical Miles
Survey Departure Date (yyyymmdd): 19850116
Survey Arrival Date (yyyymmdd): 19850117
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: 15718
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +38
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: 15718
Datafile Header Info: PJCT=C32-552 FLGT= 1125 ,MTH= 1,DAY= 16, YR=1985,JDY= 16 -TO- 16,RCD= 15719,NAV=ESG ,CMP=INS2

Min/Max Data Record:
Longitude: -76.1015
Latitude: 14.5853
Mag Total Intensity Calc nT: 32418
Time Gmt Sec: 0.3438
Mag East Component Obs nT: 20596
Mag North Component Obs nT: -8238
Mag Horizontal Intensity Calc nT: 20853
Mag Vertical Intensity Obs nT: 6846
Mag Declination Calc Deg: -19.9833
Mag Inclination Calc Deg: 12.1104
Mag Total Intensity Obs nT: 32522
Alt Barometric Ft: 1400

Min/Max Data Record:
Longitude: -17.4909
Latitude: 37.7202
Mag Total Intensity Calc nT: 53807
Time Gmt Sec: 86398.8447
Mag East Component Obs nT: 31344
Mag North Component Obs nT: -3116
Mag Horizontal Intensity Calc nT: 31914
Mag Vertical Intensity Obs nT: 49596
Mag Declination Calc Deg: -8.4853
Mag Inclination Calc Deg: 67.1954
Mag Total Intensity Obs nT: 53800
Alt Barometric Ft: 27000