Survey Identifier: HS7305
Format Acronym: MGD77
Data Center File Number: J1020008
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): 19730907
Survey Arrival Date (yyyymmdd): 19730930
Magnetics Instrumentation: PROTON MAG
Topmost Latitude of Survey: +34
Bottommost Latitude: +31
Leftmost Longitude: +133
Rightmost Longitude: +135
General Digitizing Rate of Bathymetry: 223
General Digitizing Rate of Gravity: 223
Additional Documentation: magnetics records follow bathy,grav. no times for mag OLD NGDC:56080008
Number of Data Records: 6409
Min/Max Data Record:
Date: 1973 09 10
Latitude: +31.81968
Longitude: +133.04060
Bathymetry, Corrected Depth: 27.0
Magnetics Total Field, 1st Sensor: 449700
Magnetics Residual Field: -02496
Observed Gravity: 9794232
Free-Air Anomaly: -0508
Min/Max Data Record:
Date: 1973 10 04
Latitude: +33.65605
Longitude: +134.68046
Bathymetry, Corrected Depth: 4890.0
Magnetics Total Field, 1st Sensor: 462800
Magnetics Residual Field: +01962
Observed Gravity: 9796742
Free-Air Anomaly: +0918