Survey Identifier: C1304


Format Acronym: MGD77
Data Center File Number: 01010079
Parameters Surveyed Code: 55333
File Creation Date (yyyymmdd): 19890706
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: ROBERT D. CONRAD
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): T. AITKEN
Project: CRUISE 13, LEG 4
Survey Departure Date (yyyymmdd): 19691221
Port of Departure: HONOLULU, HAWAII
Survey Arrival Date (yyyymmdd): 19700122
Port of Arrival: SUVA, FIJI
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
Seismic Instrumentation: L-DGO 25CU-IN-AIRGUN,EEL,DRUM RECORDER
Formats of Seismic Data: TWO, 2 CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +22
Bottommost Latitude: -19
Leftmost Longitude: +176
Rightmost Longitude: -158
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: 39
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN TWO NAV PTS
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: 11436

Min/Max Data Record:
Date: 1969 12 21
Latitude: -18.67440
Longitude: -179.99390
Bathymetry, 2- Way Traveltime: 013250
Bathymetry, Corrected Depth: 995.0
Magnetics Total Field, 1st Sensor: 330460
Magnetics Residual Field: -08260

Min/Max Data Record:
Date: 1970 01 22
Latitude: +21.22000
Longitude: +179.99420
Bathymetry, 2- Way Traveltime: 087350
Bathymetry, Corrected Depth: 6629.0
Magnetics Total Field, 1st Sensor: 444840
Magnetics Residual Field: +07790