Survey Identifier: ODP186JR


Format Acronym: MGD77
Data Center File Number: 23060092
Parameters Surveyed Code: 50113
File Creation Date (yyyymmdd): 20020612
Source Institution: OCEAN DRILLING PROGRAM/TEXAS A&M
Country: USA+ODP MEMBERS
Platform Name: JOIDES RESOLUTION
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DR.SACKS, DR.SUYEHIRO, DR.ACTON
Project: OCEAN DRILLING PROGRAM, LEG 186
Funding: NSF+ODP MEMBERS
Survey Departure Date (yyyymmdd): 19990614
Port of Departure: YOKAHAMA, JAPAN
Survey Arrival Date (yyyymmdd): 19990814
Port of Arrival: YOKAHAMA, JAPAN
Navigation Instrumentation: AshtechGG24
Geodetic Datum/Position: GPS FIXES AT 1 MIN INTERVALS
Bathymetry Instrumentation: EPC 9802
Additional Forms of Bathymetric Data: ANALOG RECORDS & MICROFILM
Magnetics Instrumentation: EGG 886
Additional Forms of Magnetics Data: ANALOG RECORDS & MICROFILM
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: WATER GUNS
Formats of Seismic Data: ANALOG RECORDS AND MICROFILM
Topmost Latitude of Survey: 40
Bottommost Latitude: 34
Leftmost Longitude: 139
Rightmost Longitude: 144
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1/SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 06
Magnetic Sensor Tow Distance: 0450
Sensor Depth: 00100
Horizontal Sensor Separation: 000
Reference Field Code: 00
Reference Field: UNUSED
Additional Documentation: ORIGINAL RECORDS ARCHIVED AT ODP, DATA WERE SUBSAMPLED BY NGDC, REDUCING 64146 POINTS TO 42011 POINTS, CHOOSING, POINTS NO CLOSER THAN 0.02 NAUTICAL MILES, WITH THE EXCEPTION THAT ALL RECORDS, WITH BATHYMETRY OR MAGNETICS WERE RETAINED. NOTE: MGD77 FILE CREATED FROM WINFROG RAW FILES USING WF2MGD77 V202.2
Number of Data Records: 42011

Min/Max Data Record:
Date: 1999 06 21
Latitude: +34.77738
Longitude: +139.66726
Bathymetry, 2- Way Traveltime: 001840
Bathymetry, Corrected Depth: 138.0

Min/Max Data Record:
Date: 1999 07 20
Latitude: +39.19005
Longitude: +143.34046
Bathymetry, 2- Way Traveltime: 036373
Bathymetry, Corrected Depth: 2694.0