Survey Identifier: C0903
Format Acronym: MGD77
Data Center File Number: 01010021
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. TALWANI
Project: CRUISE 09, LEG 3
Survey Departure Date (yyyymmdd): 19641210
Port of Departure: KINGSTON, JAMAICA
Survey Arrival Date (yyyymmdd): 19650116
Port of Arrival: CALON, PANAMA
Bathymetry Instrumentation: 06-3.5 AND 12 KHZ, WIDE BEAM (60 DEG)
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: +21
Bottommost Latitude: +08
Leftmost Longitude: -081
Rightmost Longitude: -056
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: 139
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAV PTS
General Digitizing Rate of Gravity: 176
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
Reference System Code: 2
Reference System: POTSDAM
Additional Documentation: ---
Number of Data Records: 8560
Min/Max Data Record:
Date: 1964 12 10
Latitude: +8.85800
Longitude: -80.22500
Bathymetry, 2- Way Traveltime: 000050
Bathymetry, Corrected Depth: 4.0
Magnetics Total Field, 1st Sensor: 433870
Magnetics Residual Field: -04570
Free-Air Anomaly: -3598
Min/Max Data Record:
Date: 1965 01 16
Latitude: +20.92400
Longitude: -56.35930
Bathymetry, 2- Way Traveltime: 111075
Bathymetry, Corrected Depth: 8543.0
Magnetics Total Field, 1st Sensor: 461730
Magnetics Residual Field: +07050
Free-Air Anomaly: +1454