Survey Identifier: HS8002


Format Acronym: MGD77
Data Center File Number: J1020022
Parameters Surveyed Code: 31511
File Creation Date (yyyymmdd): 19830727
Source Institution: HYDROGRAPHIC DEPARTMENT
Country: JAPAN
Platform Name: SHOYO
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): FUSAKICHI ONO
Funding: HYDROGRAPHIC DEP
Survey Departure Date (yyyymmdd): 19800418
Port of Departure: TOKYO
Survey Arrival Date (yyyymmdd): 19800516
Port of Arrival: TOKYO
Navigation Instrumentation: NNSS,LORAN-C 9970-X,Y
Geodetic Datum/Position: NNSS,LORAN-C 9970-X,Y
Gravity Instrumentation: TSSG-H2 SENSOR:P2,P3
Topmost Latitude of Survey: +42
Bottommost Latitude: +34
Leftmost Longitude: +130
Rightmost Longitude: +143
General Digitizing Rate of Gravity: 050
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM(1967)
Reference System: SYSTEM JGSN75
Corrections Applied: DRIFT,ETOVOS
Departure Base Station Gravity: 9797700
Departure Base Station Description: TOKYO 35-38.0N,139-46.7E
Arrival Base Station Gravity: 9797700
Arrival Base Station Description: TOKYO 35-38.0N,139-46.7E
Additional Documentation: CRUISE NAME:ISIKAWA SIMANE OKI, OBSERVER:F.ONO AND T.FUKUSHIMA, TOKYO 979770 MGAL 35-38.0N,139-46.7E JGSN75, REDUCTION AND COMPILATION OF GRAVITY DATA HAVE BEEN MADE BY Y.GANEKO. Y.HARADA AND Y.KOMATU OF ASTRONOMICAL DIVISION, OLD NGDC:56080022
Number of Data Records: 4909

Min/Max Data Record:
Date: 1980 04 18
Latitude: +34.83000
Longitude: +130.73000
Observed Gravity: 9796833
Free-Air Anomaly: -0536

Min/Max Data Record:
Date: 1980 05 13
Latitude: +41.60000
Longitude: +142.29000
Observed Gravity: 9804074
Free-Air Anomaly: +1468