1- control system,

2- control computer.

1 - focal OMS of the autocollimator,

2 - CCD camera,

3 - autocollimator tube,

4 - eastern bed.

1 - objective of telescope,

2 - reflecting prism,

3 - glass limb,

4 - eastern plain bearing.

1 - telescope,

2 - western plain bearing,

3 - CCD camera,

4 - western bed,

5 - long-focal length autocollimator.