Survey Identifier: NAV2071


Format Acronym: ARO88
Data Center File Number: 0560-023
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: Donald R. Wilson
Project: Project Magnet: Project D32-451: Flight 2071 ~ 3,757 Nautical Miles
Survey Departure Date (yyyymmdd): 19931202
Survey Arrival Date (yyyymmdd): 19931203
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: 20368
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +28
Bottommost Latitude: -23
Leftmost Longitude: -044
Rightmost Longitude: -015
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: 20362
Datafile Header Info: PJCT=D32-451 FLGT= 2071 ,MTH= 12,DAY= 2, YR=1993,JDY= 336 -TO- 337,RCD= 20370,NAV=GPS ,CMP=RLG

Min/Max Data Record:
Longitude: -43.1248
Latitude: -22.9752
Mag Total Intensity Calc nT: 23479
Time Gmt Sec: 0.1040
Mag East Component Obs nT: 17424
Mag North Component Obs nT: -8892
Mag Horizontal Intensity Calc nT: 18953
Mag Vertical Intensity Obs nT: -14887
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 23464
Alt Barometric Ft: 2175

Min/Max Data Record:
Longitude: -15.4371
Latitude: 27.8143
Mag Total Intensity Calc nT: 38930
Time Gmt Sec: 86398.1016
Mag East Component Obs nT: 31184
Mag North Component Obs nT: -4309
Mag Horizontal Intensity Calc nT: 31723
Mag Vertical Intensity Obs nT: 23997
Mag Declination Calc Deg: -8.1367
Mag Inclination Calc Deg: 38.1519
Mag Total Intensity Obs nT: 38933
Alt Barometric Ft: 27086