Survey Identifier: NAV4119


Format Acronym: ARO88
Data Center File Number: 0550-030
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19940506
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Virgil R. Bettencourt
Project: Project Magnet: Project C32-951: Flight 4119 ~ 2,987 Nautical Miles
Survey Departure Date (yyyymmdd): 19881007
Survey Arrival Date (yyyymmdd): 19881007
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: 16237
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +03
Bottommost Latitude: -28
Leftmost Longitude: -110
Rightmost Longitude: -079
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: 16237
Datafile Header Info: PJCT=C32-951 FLGT= 4119 ,MTH= 10,DAY= 7, YR=1988,JDY= 281 -TO- 281,RCD= 16239,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: -109.3507
Latitude: -27.1292
Mag Total Intensity Calc nT: 29409
Time Gmt Sec: 32876.2998
Mag East Component Obs nT: 25355
Mag North Component Obs nT: 998
Mag Horizontal Intensity Calc nT: 26396
Mag Vertical Intensity Obs nT: -20426
Mag Declination Calc Deg: 1.9899
Mag Inclination Calc Deg: -37.4640
Mag Total Intensity Obs nT: 29397
Alt Barometric Ft: 1100

Min/Max Data Record:
Longitude: -79.9166
Latitude: 2.2096
Mag Total Intensity Calc nT: 33854
Time Gmt Sec: 65997.5557
Mag East Component Obs nT: 30202
Mag North Component Obs nT: 7739
Mag Horizontal Intensity Calc nT: 30457
Mag Vertical Intensity Obs nT: 11916
Mag Declination Calc Deg: 16.7752
Mag Inclination Calc Deg: 21.4576
Mag Total Intensity Obs nT: 33873
Alt Barometric Ft: 28000