Survey Identifier: C0902
Format Acronym: MGD77
Data Center File Number: 01010020
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890626
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: ROBERT D. CONRAD
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): M. EWING
Project: CRUISE 09, LEG 2
Survey Departure Date (yyyymmdd): 19641112
Port of Departure: GALVESTON, TEXAS
Survey Arrival Date (yyyymmdd): 19641208
Port of Arrival: KINGSTON, JAMAICA
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: ANSCHUTZ ELECTRICTABLE, ASKANIA GSS2-6
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: L-DGO 25CU-IN-AIRGUN,EEL,DRUM RECORDER
Formats of Seismic Data: TWO, 2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +30
Bottommost Latitude: +17
Leftmost Longitude: -098
Rightmost Longitude: -076
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: 161
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAV PTS
General Digitizing Rate of Gravity: 150
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
Reference System Code: 2
Reference System: POTSDAM
Additional Documentation: 06- 3.5 AND 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP
Number of Data Records: 6672
Min/Max Data Record:
Date: 1964 11 12
Latitude: +17.34670
Longitude: -97.09500
Bathymetry, 2- Way Traveltime: 000100
Bathymetry, Corrected Depth: 7.0
Magnetics Total Field, 1st Sensor: 438260
Magnetics Residual Field: -03710
Free-Air Anomaly: -1364
Min/Max Data Record:
Date: 1964 12 08
Latitude: +29.31670
Longitude: -76.54830
Bathymetry, 2- Way Traveltime: 092000
Bathymetry, Corrected Depth: 7048.0
Magnetics Total Field, 1st Sensor: 510960
Magnetics Residual Field: +03750
Free-Air Anomaly: +0957