Survey Identifier: NAV1166
Format Acronym: ARO88
Data Center File Number: 0480-305
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 C32-851, Flight 1166 ~ 3,063 Nautical Miles
Survey Departure Date (yyyymmdd): 19871217
Survey Arrival Date (yyyymmdd): 19871217
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: 14611
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +30
Bottommost Latitude: +19
Leftmost Longitude: -121
Rightmost Longitude: -086
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: 14612
Datafile Header Info: PJCT=C32-851 FLGT= 1166 ,MTH= 12,DAY= 17, YR=1987,JDY= 351 -TO- 351,RCD= 14614,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -120.0380
Latitude: 19.8741
Mag Total Intensity Calc nT: 40182
Time Gmt Sec: 14978.7379
Mag East Component Obs nT: 25463
Mag North Component Obs nT: 819
Mag Horizontal Intensity Calc nT: 25477
Mag Vertical Intensity Obs nT: 27540
Mag Declination Calc Deg: 1.7879
Mag Inclination Calc Deg: 43.2672
Mag Total Intensity Obs nT: 40082
Alt Barometric Ft: 15000
Min/Max Data Record:
Longitude: -86.9072
Latitude: 29.5086
Mag Total Intensity Calc nT: 48620
Time Gmt Sec: 44804.4575
Mag East Component Obs nT: 28778
Mag North Component Obs nT: 5437
Mag Horizontal Intensity Calc nT: 29265
Mag Vertical Intensity Obs nT: 41404
Mag Declination Calc Deg: 10.7946
Mag Inclination Calc Deg: 58.3860
Mag Total Intensity Obs nT: 49990
Alt Barometric Ft: 28200