Survey Identifier: NAV4070


Format Acronym: ARO88
Data Center File Number: 0380-017
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 C32-551, Flight 4070 ~3,588 Nautical Miles
Survey Departure Date (yyyymmdd): 19841124
Survey Arrival Date (yyyymmdd): 19841124
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: 20080
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -17
Bottommost Latitude: -46
Leftmost Longitude: -150
Rightmost Longitude: -109
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: 20082
Datafile Header Info: PJCT=C32-551 FLGT= 4070 ,MTH= 11,DAY= 24, YR=1984,JDY= 329 -TO- 329,RCD= 20083,NAV=INS2,CMP=INS2

Min/Max Data Record:
Longitude: -149.5213
Latitude: -45.4444
Mag Total Intensity Calc nT: 33048
Time Gmt Sec: 21651.2219
Mag East Component Obs nT: 21692
Mag North Component Obs nT: 6188
Mag Horizontal Intensity Calc nT: 23955
Mag Vertical Intensity Obs nT: -43021
Mag Declination Calc Deg: 11.2093
Mag Inclination Calc Deg: -60.8388
Mag Total Intensity Obs nT: 35696
Alt Barometric Ft: 914

Min/Max Data Record:
Longitude: -109.3939
Latitude: -17.5226
Mag Total Intensity Calc nT: 49272
Time Gmt Sec: 62308.9717
Mag East Component Obs nT: 31736
Mag North Component Obs nT: 10181
Mag Horizontal Intensity Calc nT: 32563
Mag Vertical Intensity Obs nT: -17956
Mag Declination Calc Deg: 25.1173
Mag Inclination Calc Deg: -29.1446
Mag Total Intensity Obs nT: 49224
Alt Barometric Ft: 26100