Survey Identifier: C1803
Format Acronym: MGD77
Data Center File Number: 01010136
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19870730
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: U.S.A.
Platform Name: CONRAD
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): HERRON, ELLEN
Project: c1803
Survey Departure Date (yyyymmdd): 19750415
Port of Departure: PUERTO MONTT, CHILE
Survey Arrival Date (yyyymmdd): 19750513
Port of Arrival: VALPARAISO, CHILE
Navigation Instrumentation: SATELLITE
Geodetic Datum/Position: SATELLITE / DEAD RECKONING
Bathymetry Instrumentation: 3.5
Magnetics Instrumentation: P
Gravity Instrumentation: BELL
Topmost Latitude of Survey: -33
Bottommost Latitude: -49
Leftmost Longitude: -101
Rightmost Longitude: -071
General Digitizing Rate of Bathymetry: 66
General Sampling Rate of Bathymetry: ONE SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 0
General Digitizing Rate of Magnetics: 56
Reference Field Code: 75
General Digitizing Rate of Gravity: 119
Theoretical Gravity Formula Code: 2
Reference System Code: 2
Number of Data Records: 12478
Min/Max Data Record:
Date: 1975 04 15
Latitude: -48.03830
Longitude: -100.40990
Bathymetry, 2- Way Traveltime: 000600
Bathymetry, Corrected Depth: 45.0
Magnetics Total Field, 1st Sensor: 263930
Magnetics Residual Field: -06840
Free-Air Anomaly: -1951
Min/Max Data Record:
Date: 1975 05 13
Latitude: -33.02170
Longitude: -71.73500
Bathymetry, 2- Way Traveltime: 076425
Bathymetry, Corrected Depth: 5769.0
Magnetics Total Field, 1st Sensor: 388860
Magnetics Residual Field: +07080
Free-Air Anomaly: +1957