Survey Identifier: NAV1201
Format Acronym: ARO88
Data Center File Number: 0550-014
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 C32-051: Flight 1201 ~ 3,302 Nautical Miles
Survey Departure Date (yyyymmdd): 19900118
Survey Arrival Date (yyyymmdd): 19900118
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: 18078
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +39
Bottommost Latitude: -03
Leftmost Longitude: -090
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: 18078
Datafile Header Info: PJCT=C32-052 FLGT= 1201 ,MTH= 1,DAY= 18, YR=1990,JDY= 18 -TO- 18,RCD= 18080,NAV=I1 ,CMP=I1
Min/Max Data Record:
Longitude: -89.9983
Latitude: -2.1771
Mag Total Intensity Calc nT: 30232
Time Gmt Sec: 14528.4700
Mag East Component Obs nT: 20017
Mag North Component Obs nT: -3982
Mag Horizontal Intensity Calc nT: 20368
Mag Vertical Intensity Obs nT: 9795
Mag Declination Calc Deg: -11.0240
Mag Inclination Calc Deg: 18.7689
Mag Total Intensity Obs nT: 27644
Alt Barometric Ft: -100
Min/Max Data Record:
Longitude: -76.3021
Latitude: 38.2830
Mag Total Intensity Calc nT: 54078
Time Gmt Sec: 51932.5679
Mag East Component Obs nT: 29240
Mag North Component Obs nT: 2076
Mag Horizontal Intensity Calc nT: 29309
Mag Vertical Intensity Obs nT: 50014
Mag Declination Calc Deg: 4.0679
Mag Inclination Calc Deg: 67.8412
Mag Total Intensity Obs nT: 53942
Alt Barometric Ft: 25000