Survey Identifier: NAV1199A
Format Acronym: ARO88
Data Center File Number: 0550-013
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19940506
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Virgil R. Bettencourt
Project: Project Magnet: Project C32-954: Flight 1199A ~ 3,795 Nautical Miles
Survey Departure Date (yyyymmdd): 19890903
Survey Arrival Date (yyyymmdd): 19890904
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: 20081
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +33
Bottommost Latitude: -08
Leftmost Longitude: -065
Rightmost Longitude: -014
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: 20081
Datafile Header Info: PJCT=C32-954 FLGT= 1199A ,MTH= 9,DAY= 2, YR=1989,JDY= 245 -TO- 246,RCD= 20083,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -64.3662
Latitude: -7.9380
Mag Total Intensity Calc nT: 28224
Time Gmt Sec: 0.2422
Mag East Component Obs nT: 21185
Mag North Component Obs nT: -8691
Mag Horizontal Intensity Calc nT: 22365
Mag Vertical Intensity Obs nT: -17334
Mag Declination Calc Deg: -18.6950
Mag Inclination Calc Deg: -37.7050
Mag Total Intensity Obs nT: 28178
Alt Barometric Ft: 2100
Min/Max Data Record:
Longitude: -14.5026
Latitude: 32.2974
Mag Total Intensity Calc nT: 48492
Time Gmt Sec: 86398.2422
Mag East Component Obs nT: 29403
Mag North Component Obs nT: -6444
Mag Horizontal Intensity Calc nT: 30599
Mag Vertical Intensity Obs nT: 42104
Mag Declination Calc Deg: -15.4611
Mag Inclination Calc Deg: 60.2594
Mag Total Intensity Obs nT: 48466
Alt Barometric Ft: 29100