Survey Identifier: NAV4100
Format Acronym: ARO88
Data Center File Number: 0480-257
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19890906
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Fred M. Valentine
Project: Project Magnet: Project C32-754, Flight 4100 ~ 2,077 Nautical Miles
Survey Departure Date (yyyymmdd): 19870908
Survey Arrival Date (yyyymmdd): 19870908
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: 11014
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +16
Bottommost Latitude: +05
Leftmost Longitude: +120
Rightmost Longitude: +146
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: 11016
Datafile Header Info: PJCT=C32-754 FLGT= 4100 ,MTH= 9,DAY= 8, YR=1987,JDY= 251 -TO- 251,RCD= 11018,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 120.1928
Latitude: 5.7795
Mag Total Intensity Calc nT: 35281
Time Gmt Sec: 57310.8369
Mag East Component Obs nT: 35024
Mag North Component Obs nT: -789
Mag Horizontal Intensity Calc nT: 34698
Mag Vertical Intensity Obs nT: -3423
Mag Declination Calc Deg: -1.1623
Mag Inclination Calc Deg: -5.2333
Mag Total Intensity Obs nT: 36236
Alt Barometric Ft: 300
Min/Max Data Record:
Longitude: 145.0128
Latitude: 15.1999
Mag Total Intensity Calc nT: 40979
Time Gmt Sec: 80064.7568
Mag East Component Obs nT: 39560
Mag North Component Obs nT: 1790
Mag Horizontal Intensity Calc nT: 39563
Mag Vertical Intensity Obs nT: 10925
Mag Declination Calc Deg: 2.7496
Mag Inclination Calc Deg: 15.6183
Mag Total Intensity Obs nT: 40740
Alt Barometric Ft: 21100