Survey Identifier: NAV3076


Format Acronym: ARO88
Data Center File Number: 0480-071
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 C32-353: Flight 3076 ~ 3,004 Nautical Miles
Survey Departure Date (yyyymmdd): 19830816
Survey Arrival Date (yyyymmdd): 19830816
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: 18055
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +62
Bottommost Latitude: +35
Leftmost Longitude: +139
Rightmost Longitude: -150
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: 18056
Datafile Header Info: PJCT=C32-353 FLGT= 3076 ,MTH= 5,DAY= 7, YR=1983,JDY= 127 -TO- 127,RCD= 18057,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: -179.9989
Latitude: 35.9884
Mag Total Intensity Calc nT: 45864
Time Gmt Sec: 44838.2759
Mag East Component Obs nT: 14234
Mag North Component Obs nT: -3577
Mag Horizontal Intensity Calc nT: 15642
Mag Vertical Intensity Obs nT: 34585
Mag Declination Calc Deg: -6.9176
Mag Inclination Calc Deg: 48.7431
Mag Total Intensity Obs nT: 45868
Alt Barometric Ft: 4925

Min/Max Data Record:
Longitude: 179.9966
Latitude: 61.0920
Mag Total Intensity Calc nT: 55709
Time Gmt Sec: 85078.3965
Mag East Component Obs nT: 30142
Mag North Component Obs nT: 6696
Mag Horizontal Intensity Calc nT: 30339
Mag Vertical Intensity Obs nT: 53466
Mag Declination Calc Deg: 24.6858
Mag Inclination Calc Deg: 73.6929
Mag Total Intensity Obs nT: 55694
Alt Barometric Ft: 26000