The system of Key Stone Project (KSP) is designed to monitor the crustal
deformation in the Tokyo metropolitan area every day by the VLBI and SLR
techniques with the several mm precision.
[1994] Central station for data processing was built at Koganei in Tokyo.
VLBI stations were constructed at Koganei and Kashima.
[1995] VLBI stations was constructed at Miura in Kanagawa.
Daily VLBI observations started between Koganei and Kashima.
Real time VLBI using optical fiber network is under discussion.
Data delivery to the JMA (Japan Meteorological Agency) and
CCEP (Coordinating Committee for Earthquake Prediction) was
discussed.