Survey Identifier: NAV1112


Format Acronym: ARO88
Data Center File Number: 0480-117
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 C32-454, Flight 1112 ~ 4,002 Nautical Miles
Survey Departure Date (yyyymmdd): 19840914
Survey Arrival Date (yyyymmdd): 19840914
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: 20611
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +57
Bottommost Latitude: +13
Leftmost Longitude: -070
Rightmost Longitude: -052
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: 20612
Datafile Header Info: PJCT=C32-454 FLGT= 1112 ,MTH= 9,DAY= 14, YR=1984,JDY= 258 -TO- 258,RCD= 20613,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: -69.9418
Latitude: 13.0608
Mag Total Intensity Calc nT: 36479
Time Gmt Sec: 2133.0670
Mag East Component Obs nT: 11206
Mag North Component Obs nT: -7700
Mag Horizontal Intensity Calc nT: 12827
Mag Vertical Intensity Obs nT: 23249
Mag Declination Calc Deg: -32.9731
Mag Inclination Calc Deg: 39.5871
Mag Total Intensity Obs nT: 36460
Alt Barometric Ft: 100

Min/Max Data Record:
Longitude: -52.5076
Latitude: 56.0031
Mag Total Intensity Calc nT: 58032
Time Gmt Sec: 43667.8867
Mag East Component Obs nT: 27343
Mag North Component Obs nT: -5266
Mag Horizontal Intensity Calc nT: 28116
Mag Vertical Intensity Obs nT: 56463
Mag Declination Calc Deg: -13.1699
Mag Inclination Calc Deg: 77.1345
Mag Total Intensity Obs nT: 58046
Alt Barometric Ft: 29100