Survey Identifier: NAV5087
Format Acronym: ARO88
Data Center File Number: 0550-062
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 5087 ~ 2,747 Nautical Miles
Survey Departure Date (yyyymmdd): 19891211
Survey Arrival Date (yyyymmdd): 19891211
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: 15362
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +15
Bottommost Latitude: +01
Leftmost Longitude: +103
Rightmost Longitude: +145
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: 15362
Datafile Header Info: PJCT=C32-051 FLGT= 5087 ,MTH= 12,DAY= 11, YR=1989,JDY= 345 -TO- 345,RCD= 15364,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 103.9507
Latitude: 1.2154
Mag Total Intensity Calc nT: 36190
Time Gmt Sec: 38839.6719
Mag East Component Obs nT: 35471
Mag North Component Obs nT: -828
Mag Horizontal Intensity Calc nT: 35490
Mag Vertical Intensity Obs nT: -12445
Mag Declination Calc Deg: -1.2239
Mag Inclination Calc Deg: -17.2872
Mag Total Intensity Obs nT: 36195
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: 144.6614
Latitude: 14.3980
Mag Total Intensity Calc nT: 41946
Time Gmt Sec: 70140.3184
Mag East Component Obs nT: 40697
Mag North Component Obs nT: 1621
Mag Horizontal Intensity Calc nT: 40697
Mag Vertical Intensity Obs nT: 10359
Mag Declination Calc Deg: 2.5855
Mag Inclination Calc Deg: 14.8150
Mag Total Intensity Obs nT: 41860
Alt Barometric Ft: 13000