Giuseppe BiancoHead, Space Geodesy Unit, ASI

Thirty years ofThirty years of

Space Geodesy at ASISpace Geodesy at ASI

COPUOS

Scientific and Technical Subcommittee 51st Session

Vienna, Austria, 19 February 2014

Global Geodetic Observing SystemGlobal Geodetic Observing System

ASI/CGS aerial view (from GoogleEarth)ASI/CGS aerial view (from GoogleEarth)

Current Networks of

GNSS, SLR, VLBI, and DORIS Sites

Greenbelt

Concepcion

Matera

Wettzell

Hartebeesthoek Yarragadee

Shanghai

Core sites

-2000

2004000

200400

6001983

1987

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1995

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2003

2007

2011

2014

X (mas) Y (mas) ASI/CGS

Ye

ars

1985

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1995

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2010