Viewing time period – 20:36 – 00:33
Another night of trying to complete a TPoint run. After opening the dome around 4pm to cool down and turning the fans on the 12″ and pulling back the light shield material we (Bob, GingerGeek and I) @20:49 completed Slew and Sync to test plate solving ability which worked well.
![](https://imt.gingergeeks.co.uk/wp-content/uploads/2020/04/Screenshot-2020-04-10-at-20.49.00.716-1024x702.png)
We then started the TPoint run.
![](https://imt.gingergeeks.co.uk/wp-content/uploads/2020/04/Screenshot-2020-04-10-at-20.55.07.912-1024x695.png)
![](https://imt.gingergeeks.co.uk/wp-content/uploads/2020/04/Screenshot-2020-04-10-at-20.57.04.443-1024x692.png)
Our first failure was Point 28 @21:21. The following are other failures.
Failed Point 50,51,52,53 @21:42
Failed Point 55 @21:45
Failed Point 60 @21:53
Failed Point 71,76,77,78,79,80,81,84,85,86,89,
![](https://imt.gingergeeks.co.uk/wp-content/uploads/2020/04/Screenshot-2020-04-10-at-22.08.57.529-1024x697.png)
We then performed the first of a few meridian flips back and forth at Point 92
![](https://imt.gingergeeks.co.uk/wp-content/uploads/2020/04/Screenshot-2020-04-10-at-22.19.41.353-1024x694.png)
At pointing sample 96 we changed from 20s exp to 25s (20 failed at this point) to see if this helped the failure rate, it helped a little. The sky clarity was not great nor was the 12″ pointing correctly through the dome at the Meridian so need to look at this at a future point.
More Tpoints failed as follows. TPoint 100,102,105,106,107 (at this point scope 1/3 obscured by slit!)
![](https://imt.gingergeeks.co.uk/wp-content/uploads/2020/04/Screenshot-2020-04-10-at-22.36.29.727-1024x640.png)
Failed TPoint 109,110,112,113,114,116
By 11pm after 2 hour we had completed 122 points
Failed TPoint 123,127,128,129,130,131,132,133,134,135
@23:39 stopped due to cloud
@00:33 stopped again due to cloud and shut dome but left TPoint session unfinished to see if we can pick up tomorrow night if clear.