Survey Identifier: NAV3113
Format Acronym: ARO88
Data Center File Number: 0480-179
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 C32-553, Flight 3113 ~ 3,744 Nautical Miles
Survey Departure Date (yyyymmdd): 19850524
Survey Arrival Date (yyyymmdd): 19850524
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: 18187
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +21
Bottommost Latitude: +14
Leftmost Longitude: +120
Rightmost Longitude: +161
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: 18189
Datafile Header Info: PJCT=C32-553 FLGT= 3113 ,MTH= 5,DAY= 24, YR=1985,JDY= 144 -TO- 144,RCD= 18191,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 120.2646
Latitude: 14.4131
Mag Total Intensity Calc nT: 33827
Time Gmt Sec: 45874.9629
Mag East Component Obs nT: 31450
Mag North Component Obs nT: -766
Mag Horizontal Intensity Calc nT: 31546
Mag Vertical Intensity Obs nT: 8092
Mag Declination Calc Deg: -1.1550
Mag Inclination Calc Deg: 12.8484
Mag Total Intensity Obs nT: 33841
Alt Barometric Ft: 1973
Min/Max Data Record:
Longitude: 160.2542
Latitude: 20.2379
Mag Total Intensity Calc nT: 40956
Time Gmt Sec: 85490.7646
Mag East Component Obs nT: 39488
Mag North Component Obs nT: 3380
Mag Horizontal Intensity Calc nT: 39491
Mag Vertical Intensity Obs nT: 15141
Mag Declination Calc Deg: 5.9226
Mag Inclination Calc Deg: 24.8577
Mag Total Intensity Obs nT: 40975
Alt Barometric Ft: 25900