Survey Identifier: NAV1120


Format Acronym: ARO88
Data Center File Number: 0440-007
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 1120 ~ 3,358 Nautical Miles
Survey Departure Date (yyyymmdd): 19840908
Survey Arrival Date (yyyymmdd): 19840909
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: 18031
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +52
Bottommost Latitude: +29
Leftmost Longitude: -028
Rightmost Longitude: -011
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: 18033
Datafile Header Info: PJCT=C32-454 FLGT= 1120 ,MTH= 9,DAY= 8, YR=1984,JDY= 252 -TO- 252,RCD= 18034,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: -27.3507
Latitude: 29.8973
Mag Total Intensity Calc nT: 39214
Time Gmt Sec: 0.2012
Mag East Component Obs nT: 18952
Mag North Component Obs nT: -6642
Mag Horizontal Intensity Calc nT: 19272
Mag Vertical Intensity Obs nT: 25909
Mag Declination Calc Deg: -16.0121
Mag Inclination Calc Deg: 41.3456
Mag Total Intensity Obs nT: 39237
Alt Barometric Ft: -200

Min/Max Data Record:
Longitude: -11.2506
Latitude: 51.0416
Mag Total Intensity Calc nT: 47989
Time Gmt Sec: 86398.2021
Mag East Component Obs nT: 29200
Mag North Component Obs nT: -3389
Mag Horizontal Intensity Calc nT: 29456
Mag Vertical Intensity Obs nT: 43934
Mag Declination Calc Deg: -7.4264
Mag Inclination Calc Deg: 66.3132
Mag Total Intensity Obs nT: 47986
Alt Barometric Ft: 26000