Survey Identifier: NAV3118
Format Acronym: ARO88
Data Center File Number: 0480-180
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 C32-553, Flight 3118 ~ 3,613 Nautical Miles
Survey Departure Date (yyyymmdd): 19850609
Survey Arrival Date (yyyymmdd): 19850609
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: 17692
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: 17693
Datafile Header Info: PJCT=C32-553 FLGT= 3118 ,MTH= 6,DAY= 9, YR=1985,JDY= 160 -TO- 160,RCD= 17695,NAV=ESG ,CMP=INS1
Min/Max Data Record:
Longitude: -179.9973
Latitude: 35.7003
Mag Total Intensity Calc nT: 0
Time Gmt Sec: 24840.3130
Mag East Component Obs nT: 0
Mag North Component Obs nT: -3730
Mag Horizontal Intensity Calc nT: 0
Mag Vertical Intensity Obs nT: 0
Mag Declination Calc Deg: -7.0592
Mag Inclination Calc Deg: 0.0000
Mag Total Intensity Obs nT: 0
Alt Barometric Ft: 1619
Min/Max Data Record:
Longitude: 179.9990
Latitude: 61.2051
Mag Total Intensity Calc nT: 55934
Time Gmt Sec: 60322.9976
Mag East Component Obs nT: 30294
Mag North Component Obs nT: 6659
Mag Horizontal Intensity Calc nT: 30480
Mag Vertical Intensity Obs nT: 53751
Mag Declination Calc Deg: 24.8603
Mag Inclination Calc Deg: 74.0155
Mag Total Intensity Obs nT: 55958
Alt Barometric Ft: 28900