The Progress of Seshan VGOS Station Construction

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Presentation transcript:

The Progress of Seshan VGOS Station Construction IVS-GM2016 2016.03.14 The Progress of Seshan VGOS Station Construction Guangli Wang Shanghai Astronomical Observatory

Feed +Receiver: SHAO+CETC 54 2.7-15.5GHz Antenna 13.2m CETC 54 Ref. Point real-time measurement RF transferred by optic fiber Time Freq.: H-maser (share with RT65m) Terminal room: UDC+CDAS /DBBC3(2017) and Mark6

Seshan VGOS Station Location ~6km ShVGOS station located near Tianma 65m telescope Seshan25 VLBI station location

Ant. Tower High: 11.3m Distance from 65m telescope: 178m Sight blockage: H21°V23°@23°NW

The Current Status Antenna 2015.11

Assembling test at factory: this June 2016.01

Reference point real-time monitoring

Imaging Total Station： Ranging: 0.2mm Angular: 0”.5 The monitoring system is finished verifying and the design implementation is discussed with CETC 54。

Test in room 2015.11

simulate the real situation Distance change, formal error 0.37mm 2-D plane change, formal error 0.18mm/0.29mm Next step: simulate the real situation

On-site Investigation for antenna assembling and installation 2016.01

The Receiver, UDC, CDAS-2A, and Mark6 will be ready in Oct. 2016

And we plan the antenna can do experiments before June 2017. Now we are waiting for the approval of the antenna tower construction. It is most possible the tower is ready in this July or August. And we plan the antenna can do experiments before June 2017.

Thanks!