Survey Identifier: HS7304
Format Acronym: MGD77
Data Center File Number: J1020007
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19810911
Source Institution: HYDROGRAPHIC DEPT.
Country: JAPAN
Platform Name: SHOYO
Platform Type Code: 1
Platform Type: SHIP
Survey Departure Date (yyyymmdd): 19730710
Survey Arrival Date (yyyymmdd): 19730813
Magnetics Instrumentation: PROTON MAG
Topmost Latitude of Survey: +33
Bottommost Latitude: +30
Leftmost Longitude: +131
Rightmost Longitude: +134
General Digitizing Rate of Bathymetry: 104
General Digitizing Rate of Gravity: 104
Additional Documentation: magnetics records follow bathy,grav. no times for mag OLD NGDC:56080007
Number of Data Records: 6106
Min/Max Data Record:
Date: 1973 07 10
Latitude: +30.92027
Longitude: +131.58733
Bathymetry, Corrected Depth: 35.0
Magnetics Total Field, 1st Sensor: 455100
Magnetics Residual Field: -01054
Observed Gravity: 9793265
Free-Air Anomaly: -1504
Min/Max Data Record:
Date: 1973 08 16
Latitude: +32.99503
Longitude: +133.63891
Bathymetry, Corrected Depth: 4900.0
Magnetics Total Field, 1st Sensor: 464300
Magnetics Residual Field: +00640
Observed Gravity: 9796089
Free-Air Anomaly: +0690