Survey Identifier: NAV1159
Format Acronym: ARO88
Data Center File Number: 0480-250
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 C32-754, Flight 1159 ~ 3,590 Nautical Miles
Survey Departure Date (yyyymmdd): 19870722
Survey Arrival Date (yyyymmdd): 19870722
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: 18442
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +39
Bottommost Latitude: +12
Leftmost Longitude: -100
Rightmost Longitude: -067
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: 18444
Datafile Header Info: PJCT=C32-754 FLGT= 1159 ,MTH= 7,DAY= 22, YR=1987,JDY= 203 -TO- 203,RCD= 18448,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -99.8190
Latitude: 12.9334
Mag Total Intensity Calc nT: 38585
Time Gmt Sec: 9310.5640
Mag East Component Obs nT: 20130
Mag North Component Obs nT: -4949
Mag Horizontal Intensity Calc nT: 20433
Mag Vertical Intensity Obs nT: 26222
Mag Declination Calc Deg: -10.9623
Mag Inclination Calc Deg: 42.8008
Mag Total Intensity Obs nT: 38567
Alt Barometric Ft: -100
Min/Max Data Record:
Longitude: -67.1045
Latitude: 38.4157
Mag Total Intensity Calc nT: 54513
Time Gmt Sec: 48313.9565
Mag East Component Obs nT: 29672
Mag North Component Obs nT: 4043
Mag Horizontal Intensity Calc nT: 29930
Mag Vertical Intensity Obs nT: 50420
Mag Declination Calc Deg: 7.8045
Mag Inclination Calc Deg: 67.7648
Mag Total Intensity Obs nT: 54517
Alt Barometric Ft: 28000