Survey Identifier: NAV4041
Format Acronym: ARO88
Data Center File Number: 0480-041
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 4041 ~ 3,893 Nautical Miles
Survey Departure Date (yyyymmdd): 19821207
Survey Arrival Date (yyyymmdd): 19821208
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: 19438
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -17
Bottommost Latitude: -35
Leftmost Longitude: -150
Rightmost Longitude: -070
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: 19440
Datafile Header Info: PJCT=C32-351 FLGT= 4041 ,MTH= 12,DAY= 7, YR=1982,JDY= 341 -TO- 341,RCD= 19441,NAV=INS1,CMP=INS2
Min/Max Data Record:
Longitude: -149.8500
Latitude: -34.5541
Mag Total Intensity Calc nT: 25637
Time Gmt Sec: 0.1045
Mag East Component Obs nT: 21611
Mag North Component Obs nT: 2266
Mag Horizontal Intensity Calc nT: 21742
Mag Vertical Intensity Obs nT: -25203
Mag Declination Calc Deg: 5.9066
Mag Inclination Calc Deg: -43.2484
Mag Total Intensity Obs nT: 35684
Alt Barometric Ft: 961
Min/Max Data Record:
Longitude: -70.9489
Latitude: -17.5786
Mag Total Intensity Calc nT: 37643
Time Gmt Sec: 86399.1045
Mag East Component Obs nT: 31696
Mag North Component Obs nT: 8065
Mag Horizontal Intensity Calc nT: 32501
Mag Vertical Intensity Obs nT: -13298
Mag Declination Calc Deg: 18.4903
Mag Inclination Calc Deg: -29.6814
Mag Total Intensity Obs nT: 37682
Alt Barometric Ft: 29600