Survey Identifier: NAV4104
Format Acronym: ARO88
Data Center File Number: 0480-268
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 C32-852, Flight 4104 ~ 3,522 Nautical Miles
Survey Departure Date (yyyymmdd): 19880203
Survey Arrival Date (yyyymmdd): 19880203
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: 19300
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +25
Bottommost Latitude: -18
Leftmost Longitude: -150
Rightmost Longitude: -110
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: 19300
Datafile Header Info: PJCT=C32-852 FLGT= 4104 ,MTH= 2,DAY= 3, YR=1988,JDY= 34 -TO- 34,RCD= 19302,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -149.9411
Latitude: -17.6139
Mag Total Intensity Calc nT: 31699
Time Gmt Sec: 22285.0718
Mag East Component Obs nT: 27511
Mag North Component Obs nT: 4568
Mag Horizontal Intensity Calc nT: 27889
Mag Vertical Intensity Obs nT: -19492
Mag Declination Calc Deg: 8.7203
Mag Inclination Calc Deg: -31.1122
Mag Total Intensity Obs nT: 31698
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: -110.3642
Latitude: 24.0630
Mag Total Intensity Calc nT: 45585
Time Gmt Sec: 62035.1699
Mag East Component Obs nT: 32593
Mag North Component Obs nT: 7681
Mag Horizontal Intensity Calc nT: 33425
Mag Vertical Intensity Obs nT: 34371
Mag Declination Calc Deg: 13.8667
Mag Inclination Calc Deg: 50.7678
Mag Total Intensity Obs nT: 44382
Alt Barometric Ft: 26100