Survey Identifier: NAV1173
Format Acronym: ARO88
Data Center File Number: 0480-380
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 C32-854, Flight 1173 ~ 1,576 Nautical Miles
Survey Departure Date (yyyymmdd): 19880821
Survey Arrival Date (yyyymmdd): 19880821
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: 8119
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +38
Bottommost Latitude: +30
Leftmost Longitude: -123
Rightmost Longitude: -091
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: 8119
Datafile Header Info: PJCT=C32-854 FLGT= 1173 ,MTH= 8,DAY= 21, YR=1988,JDY= 234 -TO- 234
Min/Max Data Record:
Longitude: -122.0571
Latitude: 30.8196
Mag Total Intensity Calc nT: 50148
Time Gmt Sec: 57873.6406
Mag East Component Obs nT: 22918
Mag North Component Obs nT: 1329
Mag Horizontal Intensity Calc nT: 23346
Mag Vertical Intensity Obs nT: 44006
Mag Declination Calc Deg: 3.1321
Mag Inclination Calc Deg: 61.1109
Mag Total Intensity Obs nT: 50182
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: -91.5725
Latitude: 37.4525
Mag Total Intensity Calc nT: 52007
Time Gmt Sec: 74431.9209
Mag East Component Obs nT: 24286
Mag North Component Obs nT: 6667
Mag Horizontal Intensity Calc nT: 24347
Mag Vertical Intensity Obs nT: 46238
Mag Declination Calc Deg: 16.0093
Mag Inclination Calc Deg: 62.9894
Mag Total Intensity Obs nT: 52003
Alt Barometric Ft: 27100