Survey Identifier: NAV2075
Format Acronym: ARO88
Data Center File Number: 0570-007
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 2075 ~ 3,490 Nautical Miles
Survey Departure Date (yyyymmdd): 19940126
Survey Arrival Date (yyyymmdd): 19940127
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: 18159
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -22
Bottommost Latitude: -44
Leftmost Longitude: -010
Rightmost Longitude: +017
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: 18159
Datafile Header Info: PJCT=D32-452 FLGT= 2075 ,MTH= 1,DAY= 26, YR=1994,JDY= 26 -TO- 27,RCD= 18161,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -9.3859
Latitude: -43.9382
Mag Total Intensity Calc nT: 25732
Time Gmt Sec: 0.5830
Mag East Component Obs nT: 9706
Mag North Component Obs nT: -4816
Mag Horizontal Intensity Calc nT: 10661
Mag Vertical Intensity Obs nT: -26527
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 25720
Alt Barometric Ft: 9724
Min/Max Data Record:
Longitude: 16.9398
Latitude: -22.7626
Mag Total Intensity Calc nT: 29530
Time Gmt Sec: 86398.5859
Mag East Component Obs nT: 12531
Mag North Component Obs nT: -3400
Mag Horizontal Intensity Calc nT: 12984
Mag Vertical Intensity Obs nT: -22817
Mag Declination Calc Deg: -15.1785
Mag Inclination Calc Deg: -62.0819
Mag Total Intensity Obs nT: 29548
Alt Barometric Ft: 31670