【摘 要】
：
The Geospatial Information Authority of Japan (GSI) has carried out a lot of VLBI experiments in the Tsukuba VLBI Station since 1998.However,the repeating load of the antenna has caused wear of the su
【机 构】
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Geospatial Information Authority of Japan Japan G
【出 处】
：
The International VLBI Service for Geodesy and Astrometry (I
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The Geospatial Information Authority of Japan (GSI) has carried out a lot of VLBI experiments in the Tsukuba VLBI Station since 1998.However,the repeating load of the antenna has caused wear of the substructure of the azimuth track.Because it turned out that the damage was very serious in May 2013,we decided to interrupt all the experiments.After some investigations to comprehend the status of the antenna,we repaired the substructure of the antenna and resumed experiments in November.
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