Survey Identifier: NAV4169


Format Acronym: ARO88
Data Center File Number: 0560-042
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 4169 ~ 2,234 Nautical Miles
Survey Departure Date (yyyymmdd): 19931028
Survey Arrival Date (yyyymmdd): 19931028
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: 11721
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -17
Bottommost Latitude: -44
Leftmost Longitude: +164
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: 11721
Datafile Header Info: PJCT=D32-451 FLGT= 4169 ,MTH= 10,DAY= 28, YR=1993,JDY= 301 -TO- 301,RCD= 11723,NAV=GPS ,CMP=RLG

Min/Max Data Record:
Longitude: 164.8585
Latitude: -43.4006
Mag Total Intensity Calc nT: 43075
Time Gmt Sec: 45658.2695
Mag East Component Obs nT: 19524
Mag North Component Obs nT: 7070
Mag Horizontal Intensity Calc nT: 21231
Mag Vertical Intensity Obs nT: -54151
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 43074
Alt Barometric Ft: 1076

Min/Max Data Record:
Longitude: 177.3966
Latitude: -17.8125
Mag Total Intensity Calc nT: 58172
Time Gmt Sec: 69503.0156
Mag East Component Obs nT: 32572
Mag North Component Obs nT: 8397
Mag Horizontal Intensity Calc nT: 33378
Mag Vertical Intensity Obs nT: -27421
Mag Declination Calc Deg: 23.2187
Mag Inclination Calc Deg: -39.4521
Mag Total Intensity Obs nT: 58185
Alt Barometric Ft: 27811