Survey Identifier: NAV4113A
Format Acronym: ARO88
Data Center File Number: 0480-320
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 4113A ~ 2,040 Nautical Miles
Survey Departure Date (yyyymmdd): 19880601
Survey Arrival Date (yyyymmdd): 19880601
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: 11296
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -13
Bottommost Latitude: -44
Leftmost Longitude: +172
Rightmost Longitude: -175
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: 11297
Datafile Header Info: PJCT=C32-853 FLGT= 4113A ,MTH= 6,DAY= 10, YR=1988,JDY= 162 -TO- 163
Min/Max Data Record:
Longitude: -179.9995
Latitude: -43.4990
Mag Total Intensity Calc nT: 39110
Time Gmt Sec: 40558.9897
Mag East Component Obs nT: 19434
Mag North Component Obs nT: 6862
Mag Horizontal Intensity Calc nT: 21113
Mag Vertical Intensity Obs nT: -54832
Mag Declination Calc Deg: 11.6533
Mag Inclination Calc Deg: -68.7632
Mag Total Intensity Obs nT: 39099
Alt Barometric Ft: -100
Min/Max Data Record:
Longitude: 179.9995
Latitude: -13.0506
Mag Total Intensity Calc nT: 58863
Time Gmt Sec: 63601.6997
Mag East Component Obs nT: 33828
Mag North Component Obs nT: 8396
Mag Horizontal Intensity Calc nT: 34620
Mag Vertical Intensity Obs nT: -19065
Mag Declination Calc Deg: 23.1144
Mag Inclination Calc Deg: -29.0042
Mag Total Intensity Obs nT: 58330
Alt Barometric Ft: 25000