1. The Progress of Seshan VGOS Station Construction
IVS-GM
The Progress of Seshan VGOS Station Construction
Guangli Wang Shanghai Astronomical Observatory

2. Feed +Receiver:
SHAO+CETC 54
GHz
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

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

5. Ant. Tower High: 11.3m
Distance from 65m telescope: 178m
Sight blockage:

6. The Current Status
Antenna

7. Assembling test at factory: this June

8. Reference point real-time monitoring

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

11. Test in room

12. 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

13. On-site Investigation for antenna assembling and installation

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

15. 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.

16. Thanks!