Survey Identifier: NAV4167
Format Acronym: ARO88
Data Center File Number: 0560-040
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 D32-451: Flight 4167 ~ 3,086 Nautical Miles
Survey Departure Date (yyyymmdd): 19931019
Survey Arrival Date (yyyymmdd): 19931019
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: 17573
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -19
Bottommost Latitude: -44
Leftmost Longitude: +171
Rightmost Longitude: -156
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: 17573
Datafile Header Info: PJCT=D32-451 FLGT= 4167 ,MTH= 10,DAY= 19, YR=1993,JDY= 292 -TO- 292,RCD= 17575,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -179.9965
Latitude: -43.3208
Mag Total Intensity Calc nT: 38885
Time Gmt Sec: 45487.0391
Mag East Component Obs nT: 19636
Mag North Component Obs nT: 7022
Mag Horizontal Intensity Calc nT: 21317
Mag Vertical Intensity Obs nT: -54067
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 38865
Alt Barometric Ft: 5213
Min/Max Data Record:
Longitude: 179.9971
Latitude: -19.5995
Mag Total Intensity Calc nT: 58122
Time Gmt Sec: 80935.6563
Mag East Component Obs nT: 31066
Mag North Component Obs nT: 8432
Mag Horizontal Intensity Calc nT: 31991
Mag Vertical Intensity Obs nT: -22574
Mag Declination Calc Deg: 23.2233
Mag Inclination Calc Deg: -35.4848
Mag Total Intensity Obs nT: 58095
Alt Barometric Ft: 26860