Survey Identifier: NAV5120
Format Acronym: ARO88
Data Center File Number: 0560-051
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 5120 ~ 3,245 Nautical Miles
Survey Departure Date (yyyymmdd): 19930727
Survey Arrival Date (yyyymmdd): 19930727
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: 17325
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +04
Bottommost Latitude: -18
Leftmost Longitude: +098
Rightmost Longitude: +131
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: 17325
Datafile Header Info: PJCT=D32-353 FLGT= 5120 ,MTH= 7,DAY= 27, YR=1993,JDY= 208 -TO- 208,RCD= 17327,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: 98.7713
Latitude: -17.1590
Mag Total Intensity Calc nT: 41565
Time Gmt Sec: 41711.9688
Mag East Component Obs nT: 32140
Mag North Component Obs nT: -677
Mag Horizontal Intensity Calc nT: 32141
Mag Vertical Intensity Obs nT: -38782
Mag Declination Calc Deg: -1.0078
Mag Inclination Calc Deg: -50.3335
Mag Total Intensity Obs nT: 41539
Alt Barometric Ft: 1572
Min/Max Data Record:
Longitude: 130.4391
Latitude: 3.5594
Mag Total Intensity Calc nT: 50411
Time Gmt Sec: 77094.5938
Mag East Component Obs nT: 40627
Mag North Component Obs nT: 1845
Mag Horizontal Intensity Calc nT: 40633
Mag Vertical Intensity Obs nT: -8776
Mag Declination Calc Deg: 2.9933
Mag Inclination Calc Deg: -12.1883
Mag Total Intensity Obs nT: 50410
Alt Barometric Ft: 26811