Survey Identifier: HM930121

Format Acronym: MGD77
Data Center File Number: J1030025
Parameters Surveyed Code: 33513
File Creation Date (yyyymmdd): 19970324
Country: JAPAN
Platform Name: MEIYO
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): MASAO NAGANO
Survey Departure Date (yyyymmdd): 19930121
Port of Departure: TOKYO
Survey Arrival Date (yyyymmdd): 19930209
Port of Arrival: TOKYO
Navigation Instrumentation: GPS/LORANC
Geodetic Datum/Position: GPS/LORANC
Gravity Instrumentation: KSS30 TYPE, SENSOR GSS-30-01
Additional Forms of Gravity Data: GRAVITY ANOMALY CHART
Topmost Latitude of Survey: +33
Bottommost Latitude: +31
Leftmost Longitude: +131
Rightmost Longitude: +133
Bathymetric Datum Code: 0
General Digitizing Rate of Magnetics: 000
General Sampling Rate of Magnetics: 00
Magnetic Sensor Tow Distance: 0000
General Digitizing Rate of Gravity: 010
General Sampling Rate of Gravity: 05
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM 1967
Reference System: SYSTEM JGSN 75
Corrections Applied: DRIFT , ETOVOS CORRECTION
Departure Base Station Gravity: 9797712
Departure Base Station Description: TOKYO, PIER FOR MEIYO
Arrival Base Station Gravity: 9797711
Arrival Base Station Description: TOKYO, PIER FOR MEIYO
Additional Documentation: CRUISE NAME = OFFING OF IYO HYUGA NADA
Number of Data Records: 7390

Min/Max Data Record:
Date: 1993 01 23
Latitude: +31.96533
Longitude: +131.65905
Observed Gravity: 9793283
Free-Air Anomaly: -1514

Min/Max Data Record:
Date: 1993 02 06
Latitude: +32.62453
Longitude: +132.95805
Observed Gravity: 9795938
Free-Air Anomaly: +0636