Survey Identifier: NAV4057
Format Acronym: ARO88
Data Center File Number: 0380-001
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19860326
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Jesus M. Anglero
Project: Project Magnet: Project C32-452, Flight 4057, ~ 3,466 Nautical Miles
Survey Departure Date (yyyymmdd): 19840316
Survey Arrival Date (yyyymmdd): 19840316
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: 18487
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -03
Bottommost Latitude: -27
Leftmost Longitude: -150
Rightmost Longitude: -109
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: 18487
Datafile Header Info: PJCT=C32-452 FLGT= 4057 ,MTH= 3,DAY= 16, YR=1984,JDY= 76 -TO- 76,RCD= 18488,NAV=INS1,CMP=INS1
Min/Max Data Record:
Longitude: -149.3359
Latitude: -26.9441
Mag Total Intensity Calc nT: 30904
Time Gmt Sec: 15035.6659
Mag East Component Obs nT: 26046
Mag North Component Obs nT: 4864
Mag Horizontal Intensity Calc nT: 26846
Mag Vertical Intensity Obs nT: -20680
Mag Declination Calc Deg: 8.9316
Mag Inclination Calc Deg: -37.5580
Mag Total Intensity Obs nT: 30920
Alt Barometric Ft: 557
Min/Max Data Record:
Longitude: -109.4588
Latitude: -3.0294
Mag Total Intensity Calc nT: 36987
Time Gmt Sec: 52549.2529
Mag East Component Obs nT: 31369
Mag North Component Obs nT: 7376
Mag Horizontal Intensity Calc nT: 32035
Mag Vertical Intensity Obs nT: 1465
Mag Declination Calc Deg: 15.6552
Mag Inclination Calc Deg: 2.6783
Mag Total Intensity Obs nT: 36879
Alt Barometric Ft: 26900