Survey Identifier: NAV4165
Format Acronym: ARO88
Data Center File Number: 0560-038
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 D32-352: Flight 4165 ~ 3,748 Nautical Miles
Survey Departure Date (yyyymmdd): 19930310
Survey Arrival Date (yyyymmdd): 19930310
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: 20844
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +24
Bottommost Latitude: -18
Leftmost Longitude: -150
Rightmost Longitude: -110
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: 20843
Datafile Header Info: PJCT=D32-352 FLGT= 4165 ,MTH= 3,DAY= 10, YR=1993,JDY= 69 -TO- 69,RCD= 20846,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -149.5287
Latitude: -17.4615
Mag Total Intensity Calc nT: 30988
Time Gmt Sec: 13303.1846
Mag East Component Obs nT: 27700
Mag North Component Obs nT: 4675
Mag Horizontal Intensity Calc nT: 28106
Mag Vertical Intensity Obs nT: -18711
Mag Declination Calc Deg: 8.6400
Mag Inclination Calc Deg: -30.7800
Mag Total Intensity Obs nT: 30994
Alt Barometric Ft: 1781
Min/Max Data Record:
Longitude: -110.5475
Latitude: 23.9062
Mag Total Intensity Calc nT: 44128
Time Gmt Sec: 55239.7383
Mag East Component Obs nT: 30944
Mag North Component Obs nT: 6613
Mag Horizontal Intensity Calc nT: 31584
Mag Vertical Intensity Obs nT: 34009
Mag Declination Calc Deg: 12.0925
Mag Inclination Calc Deg: 50.4271
Mag Total Intensity Obs nT: 44174
Alt Barometric Ft: 26880