Survey Identifier: NAV2058
Format Acronym: ARO88
Data Center File Number: 0560-012
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19940506
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Donald R. Wilson
Project: Project Magnet: Project D32-352: Flight 2058 ~ 4,075 Nautical Miles
Survey Departure Date (yyyymmdd): 19930121
Survey Arrival Date (yyyymmdd): 19930122
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: 22745
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +07
Bottommost Latitude: -10
Leftmost Longitude: -106
Rightmost Longitude: -079
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: 22745
Datafile Header Info: PJCT=D32-352 FLGT= 2058 ,MTH= 1,DAY= 21, YR=1993,JDY= 21 -TO- 22,RCD= 22747,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -105.0799
Latitude: -9.3725
Mag Total Intensity Calc nT: 29312
Time Gmt Sec: 1.2640
Mag East Component Obs nT: 28366
Mag North Component Obs nT: 382
Mag Horizontal Intensity Calc nT: 28372
Mag Vertical Intensity Obs nT: -1321
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 29302
Alt Barometric Ft: 699
Min/Max Data Record:
Longitude: -79.7738
Latitude: 6.5113
Mag Total Intensity Calc nT: 144409
Time Gmt Sec: 86399.2656
Mag East Component Obs nT: 30534
Mag North Component Obs nT: 4799
Mag Horizontal Intensity Calc nT: 141421
Mag Vertical Intensity Obs nT: 14957
Mag Declination Calc Deg: 9.4068
Mag Inclination Calc Deg: 25.9012
Mag Total Intensity Obs nT: 34254
Alt Barometric Ft: 27523