Survey Identifier: NAV4049
Format Acronym: ARO88
Data Center File Number: 0480-031
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 C32-254: Flight 4049 ~ 2,551 Nautical Miles
Survey Departure Date (yyyymmdd): 19820824
Survey Arrival Date (yyyymmdd): 19820824
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: 15067
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -32
Bottommost Latitude: -55
Leftmost Longitude: +116
Rightmost Longitude: +144
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: 15069
Datafile Header Info: PJCT=C32-254 FLGT= 4049 ,MTH= 8,DAY= 24, YR=1982,JDY= 236 -TO- 236,RCD= 15070,NAV=ESG ,CMP=INS2
Min/Max Data Record:
Longitude: 116.1311
Latitude: -54.3334
Mag Total Intensity Calc nT: 59017
Time Gmt Sec: 1392.8120
Mag East Component Obs nT: 7512
Mag North Component Obs nT: -2163
Mag Horizontal Intensity Calc nT: 7747
Mag Vertical Intensity Obs nT: -66200
Mag Declination Calc Deg: -15.6505
Mag Inclination Calc Deg: -83.3250
Mag Total Intensity Obs nT: 59003
Alt Barometric Ft: 16469
Min/Max Data Record:
Longitude: 143.7932
Latitude: -32.4072
Mag Total Intensity Calc nT: 66658
Time Gmt Sec: 34230.3735
Mag East Component Obs nT: 22971
Mag North Component Obs nT: 4075
Mag Horizontal Intensity Calc nT: 23010
Mag Vertical Intensity Obs nT: -54353
Mag Declination Calc Deg: 11.1747
Mag Inclination Calc Deg: -67.0589
Mag Total Intensity Obs nT: 66637
Alt Barometric Ft: 28500