Survey Identifier: PIQR03WT


Format Acronym: MGD77
Data Center File Number: 15040022
Parameters Surveyed Code: 55111
File Creation Date (yyyymmdd): 19800304
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V THOMAS WASHINGTON
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): REID J.
Project: PIQUIER0 LEG 3
Survey Departure Date (yyyymmdd): 19690111
Port of Departure: VALPARAISO,CHILE
Survey Arrival Date (yyyymmdd): 19690219
Port of Arrival: VALPARAISO,CHILE
Navigation Instrumentation: SATNAV,AUTOLOG GYRO + EMLOG
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 12KHZ/GIFFT RECORDER/WIDE(60DEG)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: -33
Bottommost Latitude: -63
Leftmost Longitude: -092
Rightmost Longitude: -061
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1SECONDSWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: 5 MINUTE INTERVAL
General Digitizing Rate of Magnetics: 060
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF 1965
Method of Applying Residual Field: LIN.INTERP.AT 30DEG C/C OR 500MI ALONG TRACK
Number of Data Records: 6362

Min/Max Data Record:
Date: 1969 01 11
Latitude: -62.41370
Longitude: -91.30800
Bathymetry, 2- Way Traveltime: 000250
Bathymetry, Corrected Depth: 19.0
Magnetics Total Field, 1st Sensor: 268750
Magnetics Residual Field: -07400

Min/Max Data Record:
Date: 1969 02 19
Latitude: -33.05310
Longitude: -61.78570
Bathymetry, 2- Way Traveltime: 080250
Bathymetry, Corrected Depth: 6046.0
Magnetics Total Field, 1st Sensor: 430200
Magnetics Residual Field: +04900