Survey Identifier: NAV1198
Format Acronym: ARO88
Data Center File Number: 0550-011
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19940506
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Virgil R. Bettencourt
Project: Project Magnet: Project C32-954: Flight 1198 ~ 3,360 Nautical Miles
Survey Departure Date (yyyymmdd): 19890822
Survey Arrival Date (yyyymmdd): 19890822
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: 19794
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +53
Bottommost Latitude: +38
Leftmost Longitude: -077
Rightmost Longitude: +001
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: 19794
Datafile Header Info: PJCT=C32-954 FLGT= 1198 ,MTH= 8,DAY= 22, YR=1989,JDY= 234 -TO- 234,RCD= 19796,NAV=I1 ,CMP=I1
Min/Max Data Record:
Longitude: -76.1247
Latitude: 38.4307
Mag Total Intensity Calc nT: 47490
Time Gmt Sec: 29484.4329
Mag East Component Obs nT: 16657
Mag North Component Obs nT: -7812
Mag Horizontal Intensity Calc nT: 18190
Mag Vertical Intensity Obs nT: 43195
Mag Declination Calc Deg: -24.6549
Mag Inclination Calc Deg: 65.3973
Mag Total Intensity Obs nT: 47495
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: 0.7266
Latitude: 52.6977
Mag Total Intensity Calc nT: 54423
Time Gmt Sec: 69756.2598
Mag East Component Obs nT: 20482
Mag North Component Obs nT: -1243
Mag Horizontal Intensity Calc nT: 20806
Mag Vertical Intensity Obs nT: 50869
Mag Declination Calc Deg: -3.8396
Mag Inclination Calc Deg: 70.2659
Mag Total Intensity Obs nT: 54413
Alt Barometric Ft: 31000