Survey Identifier: NAV1117
Format Acronym: ARO88
Data Center File Number: 0480-115
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: Fred M. Valentine
Project: Project Magnet: Project C32-454, Flight 1117 ~ 3,769 Nautical Miles
Survey Departure Date (yyyymmdd): 19840829
Survey Arrival Date (yyyymmdd): 19840830
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: 20532
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +58
Bottommost Latitude: +18
Leftmost Longitude: -071
Rightmost Longitude: -053
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: 20532
Datafile Header Info: PJCT=C32-454 FLGT= 1117 ,MTH= 8,DAY= 29, YR=1984,JDY= 242 -TO- 242,RCD= 20533,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -70.0324
Latitude: 18.0383
Mag Total Intensity Calc nT: 40503
Time Gmt Sec: 0.1768
Mag East Component Obs nT: 10350
Mag North Component Obs nT: -7388
Mag Horizontal Intensity Calc nT: 12244
Mag Vertical Intensity Obs nT: 30076
Mag Declination Calc Deg: -33.9502
Mag Inclination Calc Deg: 47.8067
Mag Total Intensity Obs nT: 40495
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: -53.0041
Latitude: 57.2301
Mag Total Intensity Calc nT: 58354
Time Gmt Sec: 86399.6768
Mag East Component Obs nT: 27365
Mag North Component Obs nT: -4413
Mag Horizontal Intensity Calc nT: 27840
Mag Vertical Intensity Obs nT: 56692
Mag Declination Calc Deg: -9.5938
Mag Inclination Calc Deg: 77.6208
Mag Total Intensity Obs nT: 58350
Alt Barometric Ft: 26900