Survey Identifier: NAV5136


Format Acronym: ARO88
Data Center File Number: 0570-017
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 5136 ~ 3,640 Nautical Miles
Survey Departure Date (yyyymmdd): 19940315
Survey Arrival Date (yyyymmdd): 19940316
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: 20057
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -20
Bottommost Latitude: -44
Leftmost Longitude: +012
Rightmost Longitude: +056
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: 20057
Datafile Header Info: PJCT=D32-452 FLGT= 5136 ,MTH= 3,DAY= 15, YR=1994,JDY= 74 -TO- 75,RCD= 20059,NAV=GPS ,CMP=RLG

Min/Max Data Record:
Longitude: 12.0404
Latitude: -43.0270
Mag Total Intensity Calc nT: 26162
Time Gmt Sec: 0.2020
Mag East Component Obs nT: 9498
Mag North Component Obs nT: -7139
Mag Horizontal Intensity Calc nT: 10421
Mag Vertical Intensity Obs nT: -29598
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 26159
Alt Barometric Ft: 1572

Min/Max Data Record:
Longitude: 55.6122
Latitude: -20.7549
Mag Total Intensity Calc nT: 36339
Time Gmt Sec: 86398.2031
Mag East Component Obs nT: 19905
Mag North Component Obs nT: -3331
Mag Horizontal Intensity Calc nT: 21082
Mag Vertical Intensity Obs nT: -23771
Mag Declination Calc Deg: -14.8764
Mag Inclination Calc Deg: -54.3043
Mag Total Intensity Obs nT: 36296
Alt Barometric Ft: 26627