Survey Identifier: NAV7009
Format Acronym: ARO88
Data Center File Number: 0380-022
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19860326
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Jesus M. Anglero
Project: Project Magnet: Project C32-552, Flight 7009 ~ 3,928 Nautical Miles
Survey Departure Date (yyyymmdd): 19840302
Survey Arrival Date (yyyymmdd): 19840303
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: 20719
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -52
Bottommost Latitude: -66
Leftmost Longitude: -072
Rightmost Longitude: -019
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: 20721
Datafile Header Info: PJCT=C32-552 FLGT= 7009 ,MTH= 3,DAY= 3, YR=1985,JDY= 62 -TO- 62,RCD= 20722,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -71.1012
Latitude: -65.2147
Mag Total Intensity Calc nT: 32761
Time Gmt Sec: 0.4600
Mag East Component Obs nT: 16908
Mag North Component Obs nT: -3326
Mag Horizontal Intensity Calc nT: 17227
Mag Vertical Intensity Obs nT: -33836
Mag Declination Calc Deg: -11.1107
Mag Inclination Calc Deg: -58.8080
Mag Total Intensity Obs nT: 32763
Alt Barometric Ft: 400
Min/Max Data Record:
Longitude: -19.7614
Latitude: -52.9927
Mag Total Intensity Calc nT: 40550
Time Gmt Sec: 86398.4619
Mag East Component Obs nT: 21634
Mag North Component Obs nT: 7560
Mag Horizontal Intensity Calc nT: 22465
Mag Vertical Intensity Obs nT: -25374
Mag Declination Calc Deg: 19.7411
Mag Inclination Calc Deg: -48.9000
Mag Total Intensity Obs nT: 40541
Alt Barometric Ft: 26900