Survey Identifier: NAV5122
Format Acronym: ARO88
Data Center File Number: 0560-053
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 D32-353: Flight 5122 ~ 2,316 Nautical Miles
Survey Departure Date (yyyymmdd): 19930617
Survey Arrival Date (yyyymmdd): 19930617
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: 12448
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +25
Bottommost Latitude: -08
Leftmost Longitude: +056
Rightmost Longitude: +073
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: 12448
Datafile Header Info: PJCT=D32-353 FLGT= 5122 ,MTH= 6,DAY= 17, YR=1993,JDY= 168 -TO- 168,RCD= 12450,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: 56.9095
Latitude: -7.3765
Mag Total Intensity Calc nT: 37952
Time Gmt Sec: 49066.6328
Mag East Component Obs nT: 206
Mag North Component Obs nT: -4766
Mag Horizontal Intensity Calc nT: 32497
Mag Vertical Intensity Obs nT: -23782
Mag Declination Calc Deg: -8.2714
Mag Inclination Calc Deg: -36.0202
Mag Total Intensity Obs nT: 37947
Alt Barometric Ft: 2047
Min/Max Data Record:
Longitude: 72.5735
Latitude: 24.6679
Mag Total Intensity Calc nT: 43030
Time Gmt Sec: 75346.8516
Mag East Component Obs nT: 38342
Mag North Component Obs nT: 475
Mag Horizontal Intensity Calc nT: 38373
Mag Vertical Intensity Obs nT: 26003
Mag Declination Calc Deg: 0.7937
Mag Inclination Calc Deg: 37.1790
Mag Total Intensity Obs nT: 43057
Alt Barometric Ft: 25817