Survey Identifier: MARA03WT
Format Acronym: MGD77
Data Center File Number: 15040096
Parameters Surveyed Code: 55131
File Creation Date (yyyymmdd): 19811007
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V THOMAS WASHINGTON
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): COATSWORTH J.L.
Project: MARAIANA LEG 3
Survey Departure Date (yyyymmdd): 19780907
Port of Departure: HONOLULU
Survey Arrival Date (yyyymmdd): 19780920
Port of Arrival: GUAM
Navigation Instrumentation: SATNAV,AUTO LOG GYRO+2D DOPPLER SPD LOG
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 3.5KHZ/RAYTHEON UGR RECORDER/WIDE BEAM
Additional Forms of Bathymetric Data: ANALOGUE RECORDS,PUNCHED CARDS
Magnetics Instrumentation: VARIAN MFD PROTON PRECESSION MOD 4970
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS
Topmost Latitude of Survey: +22
Bottommost Latitude: +07
Leftmost Longitude: +144
Rightmost Longitude: -157
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 2SECONDSWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: 5 MINUTE INTERVAL
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Reference Field Code: 04
Reference Field: IGRF 1975
Method of Applying Residual Field: LIN. INTERP.POINTS WITHIN ONE DEGREE SQUARE
Number of Data Records: 3944
Min/Max Data Record:
Date: 1978 09 07
Latitude: +7.08400
Longitude: -179.98640
Bathymetry, 2- Way Traveltime: 013150
Bathymetry, Corrected Depth: 986.0
Magnetics Total Field, 1st Sensor: 329930
Magnetics Residual Field: -10420
Min/Max Data Record:
Date: 1978 09 20
Latitude: +21.36510
Longitude: +179.99691
Bathymetry, 2- Way Traveltime: 133175
Bathymetry, Corrected Depth: 10315.0
Magnetics Total Field, 1st Sensor: 361860
Magnetics Residual Field: +03530