Survey Identifier: NAV4028
Format Acronym: ARO88
Data Center File Number: 0480-011
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19890906
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Fred M. Valentine
Project: Project Magnet: Project C32-245: Flight 4028 ~ 3,789 Nautical Miles
Survey Departure Date (yyyymmdd): 19820821
Survey Arrival Date (yyyymmdd): 19820821
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: 22069
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -37
Bottommost Latitude: -66
Leftmost Longitude: +123
Rightmost Longitude: +173
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: 22069
Datafile Header Info: PJCT=C32-254 FLGT= 4028 ,MTH= 8,DAY= 21, YR=1982,JDY= 233 -TO- 233,RCD= 22070,NAV=ESG ,CMP=INS2
Min/Max Data Record:
Longitude: 123.7287
Latitude: -65.0348
Mag Total Intensity Calc nT: 58676
Time Gmt Sec: 38940.2559
Mag East Component Obs nT: -35
Mag North Component Obs nT: -2164
Mag Horizontal Intensity Calc nT: 79
Mag Vertical Intensity Obs nT: -67235
Mag Declination Calc Deg: -96.7954
Mag Inclination Calc Deg: -89.9329
Mag Total Intensity Obs nT: 57116
Alt Barometric Ft: 2898
Min/Max Data Record:
Longitude: 172.3516
Latitude: -37.7453
Mag Total Intensity Calc nT: 67307
Time Gmt Sec: 84756.0352
Mag East Component Obs nT: 21605
Mag North Component Obs nT: 8373
Mag Horizontal Intensity Calc nT: 21992
Mag Vertical Intensity Obs nT: -54692
Mag Declination Calc Deg: 65.0440
Mag Inclination Calc Deg: -68.7055
Mag Total Intensity Obs nT: 67272
Alt Barometric Ft: 33000