Survey Identifier: NAV4143
Format Acronym: ARO88
Data Center File Number: 0550-052
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 4143 ~ 1,848 Nautical Miles
Survey Departure Date (yyyymmdd): 19891105
Survey Arrival Date (yyyymmdd): 19891105
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: 10446
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -17
Bottommost Latitude: -28
Leftmost Longitude: -179
Rightmost Longitude: -149
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: 10446
Datafile Header Info: PJCT=C32-051 FLGT= 4143 ,MTH= 11,DAY= 5, YR=1989,JDY= 310 -TO- 310,RCD= 10448,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -178.9819
Latitude: -27.9967
Mag Total Intensity Calc nT: 36529
Time Gmt Sec: 37205.1069
Mag East Component Obs nT: 28411
Mag North Component Obs nT: 6688
Mag Horizontal Intensity Calc nT: 29571
Mag Vertical Intensity Obs nT: -38155
Mag Declination Calc Deg: 12.1082
Mag Inclination Calc Deg: -52.2062
Mag Total Intensity Obs nT: 8912
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: -149.5960
Latitude: -17.5469
Mag Total Intensity Calc nT: 48313
Time Gmt Sec: 58444.2837
Mag East Component Obs nT: 32057
Mag North Component Obs nT: 8382
Mag Horizontal Intensity Calc nT: 32874
Mag Vertical Intensity Obs nT: -17323
Mag Declination Calc Deg: 16.3722
Mag Inclination Calc Deg: -28.0210
Mag Total Intensity Obs nT: 66634
Alt Barometric Ft: 22100