Survey Identifier: NAV1164
Format Acronym: ARO88
Data Center File Number: 0480-245
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 C32-753, Flight 1164 ~ 2,627 Nautical Miles
Survey Departure Date (yyyymmdd): 19870630
Survey Arrival Date (yyyymmdd): 19870630
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: 14569
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +77
Bottommost Latitude: +38
Leftmost Longitude: -077
Rightmost Longitude: -053
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: 14569
Datafile Header Info: PJCT=C32-753 FLGT= 1164 ,MTH= 6,DAY= 30, YR=1987,JDY= 181 -TO- 181,RCD= 14571,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -76.4817
Latitude: 38.2847
Mag Total Intensity Calc nT: 53322
Time Gmt Sec: 43469.6709
Mag East Component Obs nT: 1190
Mag North Component Obs nT: -7097
Mag Horizontal Intensity Calc nT: 3622
Mag Vertical Intensity Obs nT: 49165
Mag Declination Calc Deg: -70.8931
Mag Inclination Calc Deg: 66.9688
Mag Total Intensity Obs nT: 54112
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: -53.9977
Latitude: 76.3637
Mag Total Intensity Calc nT: 57685
Time Gmt Sec: 73304.0137
Mag East Component Obs nT: 20991
Mag North Component Obs nT: -3357
Mag Horizontal Intensity Calc nT: 21289
Mag Vertical Intensity Obs nT: 57547
Mag Declination Calc Deg: -9.4068
Mag Inclination Calc Deg: 86.3679
Mag Total Intensity Obs nT: 57693
Alt Barometric Ft: 26100