Survey Identifier: NAV4116
Format Acronym: ARO88
Data Center File Number: 0480-294
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 C32-853, Flight 4116 ~ 3,637 Nautical Miles
Survey Departure Date (yyyymmdd): 19880618
Survey Arrival Date (yyyymmdd): 19880618
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: 19015
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -02
Bottommost Latitude: -41
Leftmost Longitude: -109
Rightmost Longitude: -079
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: 19017
Datafile Header Info: PJCT=C32-853 FLGT= 4116 ,MTH= 06,DAY= 18, YR=1988,JDY= 170 -TO- 170,RCD= 19019,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -108.3898
Latitude: -40.2532
Mag Total Intensity Calc nT: 27152
Time Gmt Sec: 8026.1580
Mag East Component Obs nT: 22103
Mag North Component Obs nT: 859
Mag Horizontal Intensity Calc nT: 23476
Mag Vertical Intensity Obs nT: -23094
Mag Declination Calc Deg: 1.7351
Mag Inclination Calc Deg: -44.1088
Mag Total Intensity Obs nT: 27148
Alt Barometric Ft: 17100
Min/Max Data Record:
Longitude: -79.7515
Latitude: -2.0492
Mag Total Intensity Calc nT: 33850
Time Gmt Sec: 47055.9297
Mag East Component Obs nT: 28916
Mag North Component Obs nT: 8310
Mag Horizontal Intensity Calc nT: 28935
Mag Vertical Intensity Obs nT: 10678
Mag Declination Calc Deg: 20.3437
Mag Inclination Calc Deg: 20.5269
Mag Total Intensity Obs nT: 33840
Alt Barometric Ft: 25300