Survey Identifier: NAV3185
Format Acronym: ARO88
Data Center File Number: 0550-028
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 C32-051: Flight 3185 ~ 2,735 Nautical Miles
Survey Departure Date (yyyymmdd): 19891217
Survey Arrival Date (yyyymmdd): 19891217
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: 13801
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +33
Bottommost Latitude: +21
Leftmost Longitude: -159
Rightmost Longitude: -108
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: 13801
Datafile Header Info: PJCT=C32-051 FLGT= 3185 ,MTH= 12,DAY= 17, YR=1989,JDY= 352 -TO- 352,RCD= 13803,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -158.1008
Latitude: 21.0265
Mag Total Intensity Calc nT: 35405
Time Gmt Sec: 11764.1689
Mag East Component Obs nT: 24338
Mag North Component Obs nT: 4784
Mag Horizontal Intensity Calc nT: 24883
Mag Vertical Intensity Obs nT: 22090
Mag Declination Calc Deg: 10.0177
Mag Inclination Calc Deg: 38.2076
Mag Total Intensity Obs nT: 35516
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: -108.7042
Latitude: 32.7744
Mag Total Intensity Calc nT: 49536
Time Gmt Sec: 39822.5840
Mag East Component Obs nT: 27587
Mag North Component Obs nT: 6488
Mag Horizontal Intensity Calc nT: 28068
Mag Vertical Intensity Obs nT: 42830
Mag Declination Calc Deg: 14.2528
Mag Inclination Calc Deg: 59.8443
Mag Total Intensity Obs nT: 49514
Alt Barometric Ft: 33100