Survey Identifier: NAV3143
Format Acronym: ARO88
Data Center File Number: 0480-249
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 3143 ~ 3,419 Nautical Miles
Survey Departure Date (yyyymmdd): 19870725
Survey Arrival Date (yyyymmdd): 19870725
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: 18583
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +25
Bottommost Latitude: +16
Leftmost Longitude: -159
Rightmost Longitude: -099
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: 18583
Datafile Header Info: PJCT=C32-754 FLGT= 3143 ,MTH= 7,DAY= 25, YR=1987,JDY= 206 -TO- 206,RCD= 18585,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -158.3569
Latitude: 16.7567
Mag Total Intensity Calc nT: 35409
Time Gmt Sec: 18706.6270
Mag East Component Obs nT: 26839
Mag North Component Obs nT: 3723
Mag Horizontal Intensity Calc nT: 27345
Mag Vertical Intensity Obs nT: 21999
Mag Declination Calc Deg: 7.2290
Mag Inclination Calc Deg: 38.2927
Mag Total Intensity Obs nT: 23340
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: -99.7540
Latitude: 24.7728
Mag Total Intensity Calc nT: 44500
Time Gmt Sec: 57361.0449
Mag East Component Obs nT: 29522
Mag North Component Obs nT: 6002
Mag Horizontal Intensity Calc nT: 29769
Mag Vertical Intensity Obs nT: 34377
Mag Declination Calc Deg: 12.4175
Mag Inclination Calc Deg: 50.7316
Mag Total Intensity Obs nT: 44494
Alt Barometric Ft: 28100