Survey Identifier: NAV4045
Format Acronym: ARO88
Data Center File Number: 0480-065
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 C32-352: Flight 4045 ~ 3,111 Nautical Miles
Survey Departure Date (yyyymmdd): 19830328
Survey Arrival Date (yyyymmdd): 19830328
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: 15112
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -43
Bottommost Latitude: -61
Leftmost Longitude: +127
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: 15114
Datafile Header Info: PJCT=C32-352 FLGT= 4045 ,MTH= 3,DAY= 28, YR=1983,JDY= 87 -TO- 87,RCD= 15115,NAV=ESG ,CMP=INS2
Min/Max Data Record:
Longitude: 127.0253
Latitude: -60.5013
Mag Total Intensity Calc nT: 58525
Time Gmt Sec: 29488.7148
Mag East Component Obs nT: 3239
Mag North Component Obs nT: -2625
Mag Horizontal Intensity Calc nT: 3493
Mag Vertical Intensity Obs nT: -67162
Mag Declination Calc Deg: -38.9325
Mag Inclination Calc Deg: -87.0196
Mag Total Intensity Obs nT: 58714
Alt Barometric Ft: 2300
Min/Max Data Record:
Longitude: 173.0058
Latitude: -43.3686
Mag Total Intensity Calc nT: 67299
Time Gmt Sec: 62776.0806
Mag East Component Obs nT: 19830
Mag North Component Obs nT: 8254
Mag Horizontal Intensity Calc nT: 21418
Mag Vertical Intensity Obs nT: -54561
Mag Declination Calc Deg: 34.9637
Mag Inclination Calc Deg: -68.6103
Mag Total Intensity Obs nT: 67282
Alt Barometric Ft: 30900