Survey Identifier: DSDP58GC
Format Acronym: MGD77
Data Center File Number: 15050057
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19800703
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): KLEIN K.,KOBAYASHI
Project: DEEPSEA DRILL.LG 58 <NSF>
Survey Departure Date (yyyymmdd): 19771211
Port of Departure: YOKOHAMA,JAPAN
Survey Arrival Date (yyyymmdd): 19780130
Port of Arrival: OKINAWA,JAPAN
Navigation Instrumentation: SATNAV,MANUAL ENTRY GYRO AND SPD CHANGES
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 3.5-12KHZ/EDO 550A RECORDERS/WIDE BEAM
Additional Forms of Bathymetric Data: ANAL.RECORDS,CARDS,35MMFILM
Magnetics Instrumentation: GEOMETRICS MAGNETOMETER MOD G-801/3
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS,35MMFILM
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,10-300HZ,EDO 550 REC
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: +35
Bottommost Latitude: +24
Leftmost Longitude: +127
Rightmost Longitude: +140
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1SECONDSWEEP
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: 5 MINUTE INTERVAL
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Reference Field Code: 04
Reference Field: IGRF 1975
Method of Applying Residual Field: LIN. INTERP.POINTS WITHIN ONE DEGREE SQUARE
Number of Data Records: 2475
Min/Max Data Record:
Date: 1977 12 11
Latitude: +24.53590
Longitude: +127.80350
Bathymetry, 2- Way Traveltime: 002875
Bathymetry, Corrected Depth: 217.0
Magnetics Total Field, 1st Sensor: 414940
Magnetics Residual Field: -02580
Min/Max Data Record:
Date: 1978 01 29
Latitude: +34.52860
Longitude: +139.58060
Bathymetry, 2- Way Traveltime: 095000
Bathymetry, Corrected Depth: 7235.0
Magnetics Total Field, 1st Sensor: 453070
Magnetics Residual Field: +04720