Survey Identifier: NAV1181A
Format Acronym: ARO88
Data Center File Number: 0480-323
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 C32-953, Flight 1181A ~ 883 Nautical Miles
Survey Departure Date (yyyymmdd): 19890510
Survey Arrival Date (yyyymmdd): 19890510
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: 5221
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +43
Bottommost Latitude: +37
Leftmost Longitude: -084
Rightmost Longitude: -076
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: 5223
Datafile Header Info: PJCT=C32-953 FLGT= 1181A ,MTH= 5,DAY= 10, YR=1989,JDY= 130 -TO- 130
Min/Max Data Record:
Longitude: -83.5202
Latitude: 37.8804
Mag Total Intensity Calc nT: 50610
Time Gmt Sec: 65911.1240
Mag East Component Obs nT: 11668
Mag North Component Obs nT: -5885
Mag Horizontal Intensity Calc nT: 14164
Mag Vertical Intensity Obs nT: 47616
Mag Declination Calc Deg: -16.8950
Mag Inclination Calc Deg: 66.8707
Mag Total Intensity Obs nT: 53757
Alt Barometric Ft: 200
Min/Max Data Record:
Longitude: -76.1776
Latitude: 42.0044
Mag Total Intensity Calc nT: 56331
Time Gmt Sec: 77452.1631
Mag East Component Obs nT: 20714
Mag North Component Obs nT: 8030
Mag Horizontal Intensity Calc nT: 21062
Mag Vertical Intensity Obs nT: 53238
Mag Declination Calc Deg: 34.5365
Mag Inclination Calc Deg: 73.7484
Mag Total Intensity Obs nT: 56338
Alt Barometric Ft: 22000