Survey Identifier: NAV1115
Format Acronym: ARO88
Data Center File Number: 0480-118
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 1115 ~ 3,205 Nautical Miles
Survey Departure Date (yyyymmdd): 19840928
Survey Arrival Date (yyyymmdd): 19840928
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: 17608
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +33
Bottommost Latitude: +13
Leftmost Longitude: -065
Rightmost Longitude: -039
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: 17610
Datafile Header Info: PJCT=C32-454 FLGT= 1115 ,MTH= 9,DAY= 28, YR=1984,JDY= 272 -TO- 272,RCD= 17611,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -64.6916
Latitude: 13.1525
Mag Total Intensity Calc nT: 36458
Time Gmt Sec: 170.5137
Mag East Component Obs nT: 22624
Mag North Component Obs nT: -8929
Mag Horizontal Intensity Calc nT: 23549
Mag Vertical Intensity Obs nT: 22707
Mag Declination Calc Deg: -18.7315
Mag Inclination Calc Deg: 37.9955
Mag Total Intensity Obs nT: 36446
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: -39.9357
Latitude: 32.3602
Mag Total Intensity Calc nT: 49501
Time Gmt Sec: 35989.6006
Mag East Component Obs nT: 27669
Mag North Component Obs nT: -5850
Mag Horizontal Intensity Calc nT: 29070
Mag Vertical Intensity Obs nT: 43383
Mag Declination Calc Deg: -13.7655
Mag Inclination Calc Deg: 61.3675
Mag Total Intensity Obs nT: 49349
Alt Barometric Ft: 23900