Survey Identifier: NAV4061
Format Acronym: ARO88
Data Center File Number: 0380-005
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19860326
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 C32-451, Flight 4061 ~ 3,905 Nautical Miles
Survey Departure Date (yyyymmdd): 19840331
Survey Arrival Date (yyyymmdd): 19840331
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: 20518
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +09
Bottommost Latitude: -34
Leftmost Longitude: -084
Rightmost Longitude: -077
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: 20520
Datafile Header Info: PJCT=C32-452 FLGT= 4061 ,MTH= 3,DAY= 31, YR=1984,JDY= 91 -TO- 91,RCD= 20521,NAV=INS1,CMP=INS1
Min/Max Data Record:
Longitude: -83.9714
Latitude: -33.0464
Mag Total Intensity Calc nT: 26304
Time Gmt Sec: 5224.3069
Mag East Component Obs nT: 22804
Mag North Component Obs nT: 7
Mag Horizontal Intensity Calc nT: 23498
Mag Vertical Intensity Obs nT: -16592
Mag Declination Calc Deg: 0.0139
Mag Inclination Calc Deg: -35.1778
Mag Total Intensity Obs nT: 26351
Alt Barometric Ft: 901
Min/Max Data Record:
Longitude: -77.1159
Latitude: 8.6857
Mag Total Intensity Calc nT: 36567
Time Gmt Sec: 47039.1128
Mag East Component Obs nT: 29487
Mag North Component Obs nT: 5895
Mag Horizontal Intensity Calc nT: 29545
Mag Vertical Intensity Obs nT: 22130
Mag Declination Calc Deg: 14.2683
Mag Inclination Calc Deg: 37.2922
Mag Total Intensity Obs nT: 36532
Alt Barometric Ft: 25900