Survey Identifier: NAV4163
Format Acronym: ARO88
Data Center File Number: 0560-036
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 4163 ~ 3,642 Nautical Miles
Survey Departure Date (yyyymmdd): 19930209
Survey Arrival Date (yyyymmdd): 19930209
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: 20713
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +01
Bottommost Latitude: -18
Leftmost Longitude: +155
Rightmost Longitude: +178
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: 20713
Datafile Header Info: PJCT=D32-352 FLGT= 4163 ,MTH= 2,DAY= 9, YR=1993,JDY= 40 -TO- 40,RCD= 20715,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: 155.9571
Latitude: -17.8616
Mag Total Intensity Calc nT: 35697
Time Gmt Sec: 32861.2148
Mag East Component Obs nT: 32392
Mag North Component Obs nT: 4259
Mag Horizontal Intensity Calc nT: 33119
Mag Vertical Intensity Obs nT: -27449
Mag Declination Calc Deg: 6.8034
Mag Inclination Calc Deg: -39.6209
Mag Total Intensity Obs nT: 35686
Alt Barometric Ft: 712
Min/Max Data Record:
Longitude: 177.4073
Latitude: 0.0130
Mag Total Intensity Calc nT: 43162
Time Gmt Sec: 74593.7734
Mag East Component Obs nT: 35723
Mag North Component Obs nT: 7147
Mag Horizontal Intensity Calc nT: 35985
Mag Vertical Intensity Obs nT: -6314
Mag Declination Calc Deg: 12.3681
Mag Inclination Calc Deg: -10.1851
Mag Total Intensity Obs nT: 43193
Alt Barometric Ft: 27244