Survey Identifier: NAV2077
Format Acronym: ARO88
Data Center File Number: 0570-009
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 D32-452: Flight 2077 ~ 3,573 Nautical Miles
Survey Departure Date (yyyymmdd): 19940320
Survey Arrival Date (yyyymmdd): 19940321
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: 19049
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -07
Bottommost Latitude: -33
Leftmost Longitude: -026
Rightmost Longitude: -009
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: 19049
Datafile Header Info: PJCT=D32-452 FLGT= 2077 ,MTH= 3,DAY= 20, YR=1994,JDY= 79 -TO- 80,RCD= 19051,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -25.1646
Latitude: -32.3190
Mag Total Intensity Calc nT: 24922
Time Gmt Sec: 0.2630
Mag East Component Obs nT: 11599
Mag North Component Obs nT: -7172
Mag Horizontal Intensity Calc nT: 12932
Mag Vertical Intensity Obs nT: -22812
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 24908
Alt Barometric Ft: 902
Min/Max Data Record:
Longitude: -9.8892
Latitude: -7.8050
Mag Total Intensity Calc nT: 28594
Time Gmt Sec: 86398.2656
Mag East Component Obs nT: 21443
Mag North Component Obs nT: -5628
Mag Horizontal Intensity Calc nT: 22506
Mag Vertical Intensity Obs nT: -16767
Mag Declination Calc Deg: -17.6014
Mag Inclination Calc Deg: -37.1716
Mag Total Intensity Obs nT: 28600
Alt Barometric Ft: 27053