Survey Identifier: LEG172JR
Format Acronym: MGD77
Data Center File Number: 23060077
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19970620
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): L. KEIGWIN, D. RIO, G. ACTON
Project: OCEAN DRILLING PROGRAM, LEG 172
Funding: NSF+ODP MEMBERS
Survey Departure Date (yyyymmdd): 19970214
Port of Departure: CHARLESTON, USA
Survey Arrival Date (yyyymmdd): 19970416
Port of Arrival: LISBON, PORTUGUL
Navigation Instrumentation: MX1107 GPS
Geodetic Datum/Position: GPS FIXES AT 1 MIN INTERVALS
Bathymetry Instrumentation: PDR-105B
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: +39
Bottommost Latitude: +28
Leftmost Longitude: -080
Rightmost Longitude: -009
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, NOTE: MGD77 FILE CREATED FROM WINFROG RAW FILES USING WF2MGD77 V1.4
Number of Data Records: 75879
Min/Max Data Record:
Date: 1997 02 16
Latitude: +28.22086
Longitude: -79.92353
Bathymetry, 2- Way Traveltime: 003720
Bathymetry, Corrected Depth: 285.0
Magnetics Total Field, 1st Sensor: 296610
Min/Max Data Record:
Date: 1997 04 15
Latitude: +38.71159
Longitude: -9.12004
Bathymetry, 2- Way Traveltime: 074213
Bathymetry, Corrected Depth: 5630.0
Magnetics Total Field, 1st Sensor: 458950