Survey Identifier: HM7004
Format Acronym: MGD77
Data Center File Number: J1030015
Parameters Surveyed Code: 05000
File Creation Date (yyyymmdd): 19810911
Source Institution: HYDROGRAPHIC DEPT.
Country: JAPAN
Platform Name: MEIYO
Platform Type Code: 1
Platform Type: SHIP
Survey Departure Date (yyyymmdd): 197001
Survey Arrival Date (yyyymmdd): 197001
Topmost Latitude of Survey: +38
Bottommost Latitude: +36
Leftmost Longitude: +137
Rightmost Longitude: +139
General Digitizing Rate of Magnetics: 647
Additional Documentation: OLD NGDC:56070015
Number of Data Records: 1345
Min/Max Data Record:
Latitude: +36.84980
Longitude: +137.07073
Magnetics Total Field, 1st Sensor: 468400
Magnetics Residual Field: -05403
Min/Max Data Record:
Latitude: +37.58431
Longitude: +138.31928
Magnetics Total Field, 1st Sensor: 479900
Magnetics Residual Field: +05973