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Summary
Acting as the international polar motion measurement service(IPMS), this
international joint measurement of longitude and latitude was carried
out from 1962 to 1988.

The coordinate values of polar motion(X, Y) and the change in the
length of one day(L/D) were measured in this file. The IPMS
central station(Mizusawa) recorded this data using diurnal values
with the units of angular second and microseconds of time.

Geographic Coverage Spatial coordinates   

N: 90.0

S: -90.0

E: 180.0

W: -180.0

Temporal Coverage

Start Date: 1962-01-01 Stop Date: 1988-03-30

Location Keywords

GEOGRAPHIC REGION > GLOBAL

Science Keywords

SOLID EARTH > GEODETICS/GRAVITY > POLAR MOTION

ISO Topic Category

GEOSCIENTIFIC INFORMATION

Platform

FIXED OBSERVATION STATIONS

Instrument

TELESCOPES

Project

IPMS > International Polar Motion Service

Ancillary Keywords

FLOATING ZENITH TELESCOPE IPMS LATITUDE VARIATION PHOTOGRAPHIC ZENITH TELESCOPE POLAR MOTION VISUAL ZENITH TELESCOPE

Originating Center

NAOM

Data Center

National Astronomical Observatory, Japan Data Center URL: http://www.nao.ac.jp/ Dataset ID: VAREOP DATA(IPMS8730) Data Center Personnel Name: TOSHIAKI ISHIKAWA Phone: 81-197-22-7152 Contact Address: 2-12 Hoshigaoka-cho, Mizusawa-shi City: Iwate Postal Code: 023 Country: Japan

Personnel

TOSHIAKI ISHIKAWA Role: DIF AUTHOR Role: TECHNICAL CONTACT Phone: 81-197-22-7152 Contact Address: 2-12 Hoshigaoka-cho, Mizusawa-shi City: Iwate Postal Code: 023 Country: Japan KOICHI YOKOYAMA Role: INVESTIGATOR Phone: 81-197-22-7152 Contact Address: 2-12 Hoshigaoka-cho, Mizusawa-shi, Iwate 023 Country: JAPAN

Publications/References
Annual Report of the IPMS for the Year 1962-1978 Monthly Notes of the IPMS,
1980.No.1-1987.No.12

Creation and Review Dates

Last DIF Revision Date: 1997-01-03

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