Survey Identifier: NAV5125
Format Acronym: ARO88
Data Center File Number: 0560-056
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: Donald R. Wilson
Project: Project Magnet: Project D32-353: Flight 5125 ~ 3,365 Nautical Miles
Survey Departure Date (yyyymmdd): 19930704
Survey Arrival Date (yyyymmdd): 19930705
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: 18064
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +26
Bottommost Latitude: -08
Leftmost Longitude: +051
Rightmost Longitude: +073
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: 18064
Datafile Header Info: PJCT=D32-353 FLGT= 5125 ,MTH= 7,DAY= 4, YR=1993,JDY= 185 -TO- 186,RCD= 18066,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: 51.8339
Latitude: -7.1998
Mag Total Intensity Calc nT: 34980
Time Gmt Sec: 1.3890
Mag East Component Obs nT: 32501
Mag North Component Obs nT: -4818
Mag Horizontal Intensity Calc nT: 32826
Mag Vertical Intensity Obs nT: -22982
Mag Declination Calc Deg: -8.3610
Mag Inclination Calc Deg: -34.8405
Mag Total Intensity Obs nT: 34979
Alt Barometric Ft: 879
Min/Max Data Record:
Longitude: 72.2441
Latitude: 25.0855
Mag Total Intensity Calc nT: 43307
Time Gmt Sec: 86399.3906
Mag East Component Obs nT: 37391
Mag North Component Obs nT: 529
Mag Horizontal Intensity Calc nT: 37399
Mag Vertical Intensity Obs nT: 26522
Mag Declination Calc Deg: 0.8863
Mag Inclination Calc Deg: 37.8170
Mag Total Intensity Obs nT: 43301
Alt Barometric Ft: 25387