Survey Identifier: HS7604
Format Acronym: MGD77
Data Center File Number: J1020013
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): 19760806
Survey Arrival Date (yyyymmdd): 197608
Topmost Latitude of Survey: +36
Bottommost Latitude: +20
Leftmost Longitude: +140
Rightmost Longitude: +145
General Digitizing Rate of Bathymetry: 69
General Digitizing Rate of Magnetics: 71
General Digitizing Rate of Gravity: 69
Additional Documentation: OLD NGDC:56080013
Number of Data Records: 2539
Min/Max Data Record:
Date: 1976 08 06
Latitude: +20.84982
Longitude: +140.26554
Bathymetry, Corrected Depth: 375.0
Magnetics Total Field, 1st Sensor: 449100
Magnetics Residual Field: -02833
Observed Gravity: 9787032
Free-Air Anomaly: +0007
Min/Max Data Record:
Date: 1976 08 13
Latitude: +35.72981
Longitude: +144.76666
Bathymetry, Corrected Depth: 4580.0
Magnetics Total Field, 1st Sensor: 471000
Magnetics Residual Field: +19671
Observed Gravity: 9788969
Free-Air Anomaly: +1521