Survey Identifier: NAV4077
Format Acronym: ARO88
Data Center File Number: 0480-205
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 C32-651, Flight 4077 ~ 3,406 Nautical Miles
Survey Departure Date (yyyymmdd): 19851113
Survey Arrival Date (yyyymmdd): 19851113
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: 19444
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -21
Bottommost Latitude: -35
Leftmost Longitude: +151
Rightmost Longitude: +174
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: 19446
Datafile Header Info: PJCT=C32-651 FLGT= 4077 ,MTH= 11,DAY= 13, YR=1985,JDY= 317 -TO- 317,RCD= 19447,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 151.0862
Latitude: -34.4245
Mag Total Intensity Calc nT: 46642
Time Gmt Sec: 33257.2207
Mag East Component Obs nT: 23902
Mag North Component Obs nT: 4896
Mag Horizontal Intensity Calc nT: 24430
Mag Vertical Intensity Obs nT: -52709
Mag Declination Calc Deg: 11.3543
Mag Inclination Calc Deg: -65.0997
Mag Total Intensity Obs nT: 46651
Alt Barometric Ft: -100
Min/Max Data Record:
Longitude: 173.1145
Latitude: -21.9491
Mag Total Intensity Calc nT: 58132
Time Gmt Sec: 72389.3262
Mag East Component Obs nT: 31218
Mag North Component Obs nT: 7808
Mag Horizontal Intensity Calc nT: 32042
Mag Vertical Intensity Obs nT: -33931
Mag Declination Calc Deg: 17.2286
Mag Inclination Calc Deg: -46.6661
Mag Total Intensity Obs nT: 58136
Alt Barometric Ft: 33400