Survey Identifier: NAV4058
Format Acronym: ARO88
Data Center File Number: 0380-002
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 C32-452, Flight 4058 ~ 3,683 Nautical Miles
Survey Departure Date (yyyymmdd): 19840318
Survey Arrival Date (yyyymmdd): 19840318
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: 19327
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -11
Bottommost Latitude: -40
Leftmost Longitude: -110
Rightmost Longitude: -076
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: 19329
Datafile Header Info: PJCT=C32-452 FLGT= 4058 ,MTH= 3,DAY= 18, YR=1984,JDY= 78 -TO- 78,RCD= 19330,NAV=INS1,CMP=INS1
Min/Max Data Record:
Longitude: -109.4103
Latitude: -39.2130
Mag Total Intensity Calc nT: 25888
Time Gmt Sec: 4380.9640
Mag East Component Obs nT: 22947
Mag North Component Obs nT: 1025
Mag Horizontal Intensity Calc nT: 24174
Mag Vertical Intensity Obs nT: -26948
Mag Declination Calc Deg: 2.1598
Mag Inclination Calc Deg: -47.5714
Mag Total Intensity Obs nT: 25831
Alt Barometric Ft: 63
Min/Max Data Record:
Longitude: -76.9804
Latitude: -11.9659
Mag Total Intensity Calc nT: 36555
Time Gmt Sec: 45477.4126
Mag East Component Obs nT: 27239
Mag North Component Obs nT: 9197
Mag Horizontal Intensity Calc nT: 28066
Mag Vertical Intensity Obs nT: 879
Mag Declination Calc Deg: 21.7494
Mag Inclination Calc Deg: 1.8519
Mag Total Intensity Obs nT: 36524
Alt Barometric Ft: 26900