Survey Identifier: NAV2055
Format Acronym: ARO88
Data Center File Number: 0550-018
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 2055 ~ 2,452 Nautical Miles
Survey Departure Date (yyyymmdd): 19890915
Survey Arrival Date (yyyymmdd): 19890915
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: 11863
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -34
Bottommost Latitude: -65
Leftmost Longitude: -066
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: 11863
Datafile Header Info: PJCT=C32-954 FLGT= 2055 ,MTH= 9,DAY= 15, YR=1989,JDY= 258 -TO- 258,RCD= 11865,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -65.3397
Latitude: -65.0006
Mag Total Intensity Calc nT: 23793
Time Gmt Sec: 10041.7920
Mag East Component Obs nT: 18082
Mag North Component Obs nT: -3185
Mag Horizontal Intensity Calc nT: 18332
Mag Vertical Intensity Obs nT: -31338
Mag Declination Calc Deg: -9.9033
Mag Inclination Calc Deg: -57.6579
Mag Total Intensity Obs nT: 17588
Alt Barometric Ft: -100
Min/Max Data Record:
Longitude: -39.8122
Latitude: -34.7379
Mag Total Intensity Calc nT: 37119
Time Gmt Sec: 39832.9307
Mag East Component Obs nT: 21120
Mag North Component Obs nT: 5243
Mag Horizontal Intensity Calc nT: 21754
Mag Vertical Intensity Obs nT: -13976
Mag Declination Calc Deg: 13.9567
Mag Inclination Calc Deg: -35.8830
Mag Total Intensity Obs nT: 37098
Alt Barometric Ft: 26600