Survey Identifier: UM68
Format Acronym: MGD77
Data Center File Number: J4030013
Parameters Surveyed Code: 55000
File Creation Date (yyyymmdd): 19781231
Source Institution: UNIVERSITY OF TOKYO
Country: JAPAN
Platform Name: UMITAKA MARU
Platform Type Code: 1
Platform Type: SHIP
Project: CRUISE 1968
Survey Departure Date (yyyymmdd): 19681016
Port of Departure: TOKYO, JAPAN
Survey Arrival Date (yyyymmdd): 19690204
Port of Arrival: TOKYO, JAPAN
Topmost Latitude of Survey: +35
Bottommost Latitude: -13
Leftmost Longitude: +039
Rightmost Longitude: +140
General Digitizing Rate of Bathymetry: 104
General Digitizing Rate of Magnetics: 105
Additional Documentation: OLD NGDC:56040013
Number of Data Records: 6474
Min/Max Data Record:
Date: 1968 10 16
Latitude: -12.07500
Longitude: +39.74670
Bathymetry, Corrected Depth: 10.0
Magnetics Residual Field: -12770
Min/Max Data Record:
Date: 1969 02 04
Latitude: +34.91670
Longitude: +139.57330
Bathymetry, Corrected Depth: 6709.0
Magnetics Residual Field: +08860