Survey Identifier: NAV1196
Format Acronym: ARO88
Data Center File Number: 0550-009
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 1196 ~ 2,615 Nautical Miles
Survey Departure Date (yyyymmdd): 19890927
Survey Arrival Date (yyyymmdd): 19890927
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: 14266
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +32
Bottommost Latitude: +13
Leftmost Longitude: -090
Rightmost Longitude: -059
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: 14266
Datafile Header Info: PJCT=C32-954 FLGT= 1196 ,MTH= 9,DAY= 27, YR=1989,JDY= 270 -TO- 270,RCD= 14268,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -89.0645
Latitude: 13.0751
Mag Total Intensity Calc nT: 35839
Time Gmt Sec: 12300.0909
Mag East Component Obs nT: 23367
Mag North Component Obs nT: -7231
Mag Horizontal Intensity Calc nT: 23635
Mag Vertical Intensity Obs nT: 22399
Mag Declination Calc Deg: -16.7381
Mag Inclination Calc Deg: 38.6295
Mag Total Intensity Obs nT: 35845
Alt Barometric Ft: -100
Min/Max Data Record:
Longitude: -59.3765
Latitude: 31.0510
Mag Total Intensity Calc nT: 50561
Time Gmt Sec: 41351.3560
Mag East Component Obs nT: 27203
Mag North Component Obs nT: 824
Mag Horizontal Intensity Calc nT: 28065
Mag Vertical Intensity Obs nT: 44421
Mag Declination Calc Deg: 1.9383
Mag Inclination Calc Deg: 61.7314
Mag Total Intensity Obs nT: 50516
Alt Barometric Ft: 31000