Survey Identifier: NAV1154
Format Acronym: ARO88
Data Center File Number: 0480-247
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 C32-753, Flight 1154 ~ 2,409 Nautical Miles
Survey Departure Date (yyyymmdd): 19870418
Survey Arrival Date (yyyymmdd): 19870418
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: 12661
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +77
Bottommost Latitude: +38
Leftmost Longitude: -077
Rightmost Longitude: -068
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: 12662
Datafile Header Info: PJCT=C32-753 FLGT= 1154 ,MTH= 4,DAY= 18, YR=1987,JDY= 108 -TO- 108,RCD= 12664,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -76.3943
Latitude: 38.2992
Mag Total Intensity Calc nT: 54010
Time Gmt Sec: 17086.5479
Mag East Component Obs nT: 1160
Mag North Component Obs nT: -5324
Mag Horizontal Intensity Calc nT: 3380
Mag Vertical Intensity Obs nT: 49923
Mag Declination Calc Deg: -72.4638
Mag Inclination Calc Deg: 67.5348
Mag Total Intensity Obs nT: 54008
Alt Barometric Ft: 500
Min/Max Data Record:
Longitude: -68.4427
Latitude: 76.6084
Mag Total Intensity Calc nT: 59144
Time Gmt Sec: 43358.5107
Mag East Component Obs nT: 20458
Mag North Component Obs nT: -3049
Mag Horizontal Intensity Calc nT: 20791
Mag Vertical Intensity Obs nT: 58234
Mag Declination Calc Deg: -9.7655
Mag Inclination Calc Deg: 86.6128
Mag Total Intensity Obs nT: 59144
Alt Barometric Ft: 27100