Survey Identifier: NAV5105
Format Acronym: ARO88
Data Center File Number: 0550-079
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 C32-052: Flight 5105 ~ 2,522 Nautical Miles
Survey Departure Date (yyyymmdd): 19900316
Survey Arrival Date (yyyymmdd): 19900316
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: 13914
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -11
Bottommost Latitude: -39
Leftmost Longitude: +139
Rightmost Longitude: +152
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: 13914
Datafile Header Info: PJCT=C32-052 FLGT= 5105 ,MTH= 3,DAY= 16, YR=1990,JDY= 75 -TO- 75,RCD= 13923,NAV=GPS ,CMP=ESG
Min/Max Data Record:
Longitude: 139.7658
Latitude: -38.9404
Mag Total Intensity Calc nT: 44963
Time Gmt Sec: 39637.6489
Mag East Component Obs nT: 20078
Mag North Component Obs nT: 3325
Mag Horizontal Intensity Calc nT: 20403
Mag Vertical Intensity Obs nT: -57775
Mag Declination Calc Deg: 5.9700
Mag Inclination Calc Deg: -70.5490
Mag Total Intensity Obs nT: 44965
Alt Barometric Ft: 21000
Min/Max Data Record:
Longitude: 151.9873
Latitude: -11.4493
Mag Total Intensity Calc nT: 61272
Time Gmt Sec: 83051.2842
Mag East Component Obs nT: 35213
Mag North Component Obs nT: 5783
Mag Horizontal Intensity Calc nT: 35405
Mag Vertical Intensity Obs nT: -27722
Mag Declination Calc Deg: 13.9602
Mag Inclination Calc Deg: -38.0649
Mag Total Intensity Obs nT: 61266
Alt Barometric Ft: 22100