Survey Identifier: V3209
Format Acronym: MGD77
Data Center File Number: 01030190
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890703
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): MAREK TRUCHAN
Project: CRUISE 32 LEG 09
Funding: (SEE ADD DOC / 19)
Survey Departure Date (yyyymmdd): 19750512
Port of Departure: CRISTOBAL, PANAMA CANAL ZONE
Survey Arrival Date (yyyymmdd): 19750528
Port of Arrival: ALCAPULCO, MEXICO
Navigation Instrumentation: SATELLITE/ SEXTANT
Geodetic Datum/Position: SATELLITE/ DEAD RECKONING
Bathymetry Instrumentation: (SEE ADD DOC / 18)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: L-DGO MFG PROTON-PRECESSION
Additional Forms of Magnetics Data: ANALOG RECORDS
Gravity Instrumentation: GRAF-ASKANIA GSS2-12
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: L-DGO 25CU-IW-AIRGUN,EEL,DRUM RECORDER
Formats of Seismic Data: TWO,2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +17
Bottommost Latitude: +05
Leftmost Longitude: -102
Rightmost Longitude: -079
General Digitizing Rate of Bathymetry: 060
General Sampling Rate of Bathymetry: ONE SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Magnetics: 060
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN TWO PTS
General Digitizing Rate of Gravity: 100
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Additional Documentation: 06 -3.5 AND 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP, 03 - ONR N00014-75-C-0210
Number of Data Records: 5142
Min/Max Data Record:
Date: 1975 05 12
Latitude: +5.89490
Longitude: -101.28610
Bathymetry, 2- Way Traveltime: 000300
Bathymetry, Corrected Depth: 22.0
Magnetics Total Field, 1st Sensor: 351610
Magnetics Residual Field: -06250
Free-Air Anomaly: -1371
Min/Max Data Record:
Date: 1975 05 28
Latitude: +16.82000
Longitude: -79.46330
Bathymetry, 2- Way Traveltime: 071675
Bathymetry, Corrected Depth: 5406.0
Magnetics Total Field, 1st Sensor: 416260
Magnetics Residual Field: +02730
Free-Air Anomaly: +0794