Survey Identifier: PIQR02WT


Format Acronym: MGD77
Data Center File Number: 15040021
Parameters Surveyed Code: 53113
File Creation Date (yyyymmdd): 19810618
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V THOMAS WASHINGTON
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): ATWATER T.
Project: PIQUERO LEG 2
Survey Departure Date (yyyymmdd): 19690102
Port of Departure: ANTOFAGASTA,CHILE
Survey Arrival Date (yyyymmdd): 19690107
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: ANALOGUE RECORDS
Seismic Instrumentation: 40CU.IN.AIRGUN,10-300HZ,GIFFT RECORDER
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: -23
Bottommost Latitude: -33
Leftmost Longitude: -073
Rightmost Longitude: -070
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 Sampling Rate of Magnetics: 06
Additional Documentation: *TIME*NAV AND RECORDS ORIGINALLY IN LOCAL TZ. DIGITIZED DATA CONVERTED TO GMT.
Number of Data Records: 1391

Min/Max Data Record:
Date: 1969 01 02
Latitude: -32.82130
Longitude: -72.51160
Bathymetry, 2- Way Traveltime: 000250
Bathymetry, Corrected Depth: 19.0

Min/Max Data Record:
Date: 1969 01 07
Latitude: -23.55500
Longitude: -70.42331
Bathymetry, 2- Way Traveltime: 101400
Bathymetry, Corrected Depth: 7731.0