Survey Identifier: C1308
Format Acronym: MGD77
Data Center File Number: 01010083
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19790616
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: ROBERT D. CONRAD
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): P. BUHL
Project: CRUISE 13, LEG 8
Survey Departure Date (yyyymmdd): 19700522
Port of Departure: ACAPULCO, MEXICO
Survey Arrival Date (yyyymmdd): 19700618
Port of Arrival: BALBOA, PANAMA
Navigation Instrumentation: SATELLITE
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: 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: +17
Bottommost Latitude: -02
Leftmost Longitude: -101
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: 36
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN TWO NAV PTS
General Digitizing Rate of Gravity: 36
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
Number of Data Records: 10541
Min/Max Data Record:
Date: 1970 05 22
Latitude: -1.02670
Longitude: -140.15860
Bathymetry, 2- Way Traveltime: 000575
Bathymetry, Corrected Depth: 43.0
Magnetics Total Field, 1st Sensor: 318970
Magnetics Residual Field: -09060
Free-Air Anomaly: -1494
Min/Max Data Record:
Date: 1970 06 18
Latitude: +16.71670
Longitude: -79.50620
Bathymetry, 2- Way Traveltime: 072125
Bathymetry, Corrected Depth: 5440.0
Magnetics Total Field, 1st Sensor: 417850
Magnetics Residual Field: +07920
Free-Air Anomaly: +1115