Survey Identifier: NAV3121
Format Acronym: ARO88
Data Center File Number: 0480-173
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 3121 ~ 3,919 Nautical Miles
Survey Departure Date (yyyymmdd): 19850620
Survey Arrival Date (yyyymmdd): 19850620
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: 19795
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +78
Bottommost Latitude: +61
Leftmost Longitude: -150
Rightmost Longitude: -080
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: 19797
Datafile Header Info: PJCT=C32-553 FLGT= 3121 ,MTH= 6,DAY= 20, YR=1985,JDY= 171 -TO- 171,RCD= 19799,NAV=ESG ,CMP=INS1
Min/Max Data Record:
Longitude: -149.9831
Latitude: 61.2352
Mag Total Intensity Calc nT: 54324
Time Gmt Sec: 14663.9109
Mag East Component Obs nT: -74
Mag North Component Obs nT: -3051
Mag Horizontal Intensity Calc nT: 131
Mag Vertical Intensity Obs nT: 52419
Mag Declination Calc Deg: -93.9561
Mag Inclination Calc Deg: 73.0722
Mag Total Intensity Obs nT: 4822
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: -80.7570
Latitude: 77.1899
Mag Total Intensity Calc nT: 59762
Time Gmt Sec: 55241.7568
Mag East Component Obs nT: 14933
Mag North Component Obs nT: 7203
Mag Horizontal Intensity Calc nT: 16272
Mag Vertical Intensity Obs nT: 59700
Mag Declination Calc Deg: 62.6082
Mag Inclination Calc Deg: 89.8703
Mag Total Intensity Obs nT: 67469
Alt Barometric Ft: 32000