Survey Identifier: HS7505
Format Acronym: MGD77
Data Center File Number: J1020012
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19851210
Source Institution: HYDROGRAPHIC DEPT.
Country: JAPAN
Platform Name: SHOYO
Platform Type Code: 1
Platform Type: SHIP
Survey Departure Date (yyyymmdd): 19751010
Survey Arrival Date (yyyymmdd): 19751111
Topmost Latitude of Survey: +38
Bottommost Latitude: +35
Leftmost Longitude: +132
Rightmost Longitude: +134
General Digitizing Rate of Bathymetry: 142
General Digitizing Rate of Magnetics: 142
General Digitizing Rate of Gravity: 142
Additional Documentation: *magnetics records follow bathy,grav and have no times*, OLD NGDC:56080012
Number of Data Records: 6825
Min/Max Data Record:
Date: 1975 10 10
Latitude: +35.47503
Longitude: +132.12225
Bathymetry, Corrected Depth: 30.0
Magnetics Total Field, 1st Sensor: 431400
Magnetics Residual Field: -51773
Observed Gravity: 9797873
Free-Air Anomaly: -0370
Min/Max Data Record:
Date: 1975 11 11
Latitude: +37.45787
Longitude: +133.52189
Bathymetry, Corrected Depth: 1680.0
Magnetics Total Field, 1st Sensor: 491000
Magnetics Residual Field: +09301
Observed Gravity: 9800063
Free-Air Anomaly: +0883