Survey Identifier: NAV2009
Format Acronym: ARO88
Data Center File Number: 0480-013
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 C32-252: Flight 2009 ~ 3,763 Nautical Miles
Survey Departure Date (yyyymmdd): 19820308
Survey Arrival Date (yyyymmdd): 19820309
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: 19444
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +09
Bottommost Latitude: -08
Leftmost Longitude: -033
Rightmost Longitude: -013
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: 19446
Datafile Header Info: PJCT=C32-252 FLGT= 2009 ,MTH= 3,DAY= 8, YR=1982,JDY= 67 -TO- 67,RCD= 19447,NAV=INS2,CMP=INS2
Min/Max Data Record:
Longitude: -32.5434
Latitude: -7.2047
Mag Total Intensity Calc nT: 26168
Time Gmt Sec: 0.0020
Mag East Component Obs nT: 22128
Mag North Component Obs nT: -9783
Mag Horizontal Intensity Calc nT: 23595
Mag Vertical Intensity Obs nT: -14533
Mag Declination Calc Deg: -22.7178
Mag Inclination Calc Deg: -31.5807
Mag Total Intensity Obs nT: 26180
Alt Barometric Ft: 2300
Min/Max Data Record:
Longitude: -13.3160
Latitude: 8.5749
Mag Total Intensity Calc nT: 31083
Time Gmt Sec: 86399.5039
Mag East Component Obs nT: 30391
Mag North Component Obs nT: -6279
Mag Horizontal Intensity Calc nT: 31034
Mag Vertical Intensity Obs nT: 5165
Mag Declination Calc Deg: -11.6746
Mag Inclination Calc Deg: 9.8582
Mag Total Intensity Obs nT: 31127
Alt Barometric Ft: 25900