Survey Identifier: NAV1123
Format Acronym: ARO88
Data Center File Number: 0440-009
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: Jesus M. Anglero
Project: Project Magnet: Project C32-454, Flight 1123 ~ 3,882 Nautical Miles
Survey Departure Date (yyyymmdd): 19840817
Survey Arrival Date (yyyymmdd): 19840818
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: 20434
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +56
Bottommost Latitude: +37
Leftmost Longitude: -028
Rightmost Longitude: +013
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: 20435
Datafile Header Info: PJCT=C32-454 FLGT= 1123 ,MTH= 8,DAY= 17, YR=1984,JDY= 230 -TO- 230,RCD= 20436,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -27.1184
Latitude: 37.9077
Mag Total Intensity Calc nT: 43033
Time Gmt Sec: 0.1182
Mag East Component Obs nT: 16727
Mag North Component Obs nT: -6192
Mag Horizontal Intensity Calc nT: 16929
Mag Vertical Intensity Obs nT: 34488
Mag Declination Calc Deg: -16.5437
Mag Inclination Calc Deg: 53.2575
Mag Total Intensity Obs nT: 43012
Alt Barometric Ft: 1600
Min/Max Data Record:
Longitude: 12.2254
Latitude: 55.9551
Mag Total Intensity Calc nT: 49500
Time Gmt Sec: 86398.1182
Mag East Component Obs nT: 25407
Mag North Component Obs nT: -163
Mag Horizontal Intensity Calc nT: 25748
Mag Vertical Intensity Obs nT: 46383
Mag Declination Calc Deg: -0.5452
Mag Inclination Calc Deg: 69.8738
Mag Total Intensity Obs nT: 49502
Alt Barometric Ft: 26900