Survey Identifier: NAV5117
Format Acronym: ARO88
Data Center File Number: 0560-048
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 5117 ~ 3,661 Nautical Miles
Survey Departure Date (yyyymmdd): 19930714
Survey Arrival Date (yyyymmdd): 19930715
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: 19419
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +18
Bottommost Latitude: -08
Leftmost Longitude: +072
Rightmost Longitude: +104
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: 19419
Datafile Header Info: PJCT=D32-353 FLGT= 5117 ,MTH= 7,DAY= 14, YR=1993,JDY= 195 -TO- 196,RCD= 19421,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: 72.4710
Latitude: -7.3491
Mag Total Intensity Calc nT: 39839
Time Gmt Sec: 0.3000
Mag East Component Obs nT: 32378
Mag North Component Obs nT: -4834
Mag Horizontal Intensity Calc nT: 32673
Mag Vertical Intensity Obs nT: -23876
Mag Declination Calc Deg: -8.3753
Mag Inclination Calc Deg: -35.9056
Mag Total Intensity Obs nT: 39839
Alt Barometric Ft: 1079
Min/Max Data Record:
Longitude: 103.9291
Latitude: 17.0048
Mag Total Intensity Calc nT: 42443
Time Gmt Sec: 86398.2969
Mag East Component Obs nT: 41074
Mag North Component Obs nT: -140
Mag Horizontal Intensity Calc nT: 41082
Mag Vertical Intensity Obs nT: 14345
Mag Declination Calc Deg: -0.2000
Mag Inclination Calc Deg: 19.7602
Mag Total Intensity Obs nT: 42444
Alt Barometric Ft: 22818