Survey Identifier: NAV2007
Format Acronym: ARO88
Data Center File Number: 0480-012
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 C32-252: Flight 2007 ~4,0005 Nautical Miles
Survey Departure Date (yyyymmdd): 19820305
Survey Arrival Date (yyyymmdd): 19820306
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: 20146
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +09
Bottommost Latitude: -08
Leftmost Longitude: -035
Rightmost Longitude: -013
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: 20147
Datafile Header Info: PJCT=C32-252 FLGT= 2007 ,MTH= 3,DAY= 5, YR=1982,JDY= 64 -TO- 64,RCD= 20148,NAV=INS2,CMP=INS2
Min/Max Data Record:
Longitude: -34.6710
Latitude: -7.9562
Mag Total Intensity Calc nT: 26128
Time Gmt Sec: 0.3213
Mag East Component Obs nT: 22270
Mag North Component Obs nT: -9976
Mag Horizontal Intensity Calc nT: 23701
Mag Vertical Intensity Obs nT: -14642
Mag Declination Calc Deg: -22.7157
Mag Inclination Calc Deg: -31.7050
Mag Total Intensity Obs nT: 25983
Alt Barometric Ft: 3726
Min/Max Data Record:
Longitude: -13.5411
Latitude: 8.5743
Mag Total Intensity Calc nT: 30945
Time Gmt Sec: 86398.8213
Mag East Component Obs nT: 30194
Mag North Component Obs nT: -6559
Mag Horizontal Intensity Calc nT: 30898
Mag Vertical Intensity Obs nT: 5180
Mag Declination Calc Deg: -12.2559
Mag Inclination Calc Deg: 9.8250
Mag Total Intensity Obs nT: 30823
Alt Barometric Ft: 26800