Survey Identifier: NAV4038
Format Acronym: ARO88
Data Center File Number: 0480-038
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 C32-351: Flight 4038 ~ 3,878 Nautical Miles
Survey Departure Date (yyyymmdd): 19821130
Survey Arrival Date (yyyymmdd): 19821130
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: 19371
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -43
Bottommost Latitude: -53
Leftmost Longitude: +172
Rightmost Longitude: -061
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: 19371
Datafile Header Info: PJCT=C32-351 FLGT= 4038 ,MTH= 11,DAY= 30, YR=1982,JDY= 334 -TO- 334,RCD= 19372,NAV=INS1,CMP=INS2
Min/Max Data Record:
Longitude: -179.9998
Latitude: -52.4882
Mag Total Intensity Calc nT: 51063
Time Gmt Sec: 21903.5120
Mag East Component Obs nT: 17487
Mag North Component Obs nT: 7991
Mag Horizontal Intensity Calc nT: 19984
Mag Vertical Intensity Obs nT: -54898
Mag Declination Calc Deg: 21.9910
Mag Inclination Calc Deg: -69.8265
Mag Total Intensity Obs nT: 51069
Alt Barometric Ft: 1800
Min/Max Data Record:
Longitude: 179.9958
Latitude: -43.3620
Mag Total Intensity Calc nT: 58650
Time Gmt Sec: 62476.5117
Mag East Component Obs nT: 21225
Mag North Component Obs nT: 10642
Mag Horizontal Intensity Calc nT: 23381
Mag Vertical Intensity Obs nT: -45426
Mag Declination Calc Deg: 30.5091
Mag Inclination Calc Deg: -62.8071
Mag Total Intensity Obs nT: 58643
Alt Barometric Ft: 29100