Bug 465059

Summary:	sudden huge deviations in guiding
Product:	[Applications] kstars	Reporter:	Len North <len.north>
Component:	general	Assignee:	Jasem Mutlaq <mutlaqja>
Status:	RESOLVED WORKSFORME
Severity:	crash
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Kubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	The charts have been assembled to show my view of the events. This is what I love about what the KStars team does - perfect Guiding history with an RMS of 62.1 was outstanding then... Earlier I had some issues with alignment where there were 6 tries but it was no closer to resolution.

Description Len North 2023-01-30 21:52:41 UTC

Created attachment 155803 [details]
The charts have been assembled to show my view of the events.

SUMMARY
***
Kstars Version 3.6.3 Beta
Build: 2023-01-30T13:18:19Z
***
Guiding and capture was stable  - attachment 1 [details]
Guiding jumped by about 175 arc seconds in 30 seconds - attachment 2 [details]
Earlier I had alignment issues so had turned on Alignment Logging, but that log didn't help the other issue - attachment 3 [details]
STEPS TO REPRODUCE
1. Changing viewing screens between Guiding, CCD and setup have often caused guiding instability sometimes just a bump.. or a crash.
2. The mount and outside equipment are on a capable battery with filtered AC charging and earth bonding. Data is 30 metres via ethernet.
3. Remote 64 bit Indi has seen RPi 4B-4G replace the RPi3B and now run Kubuntu inside.

OBSERVED RESULT
No Change observed, still have setup and operational issues

EXPECTED RESULT
The issues are not passive as when the guide stars are lost, there is extreme motion involved.

SOFTWARE/OS VERSIONS
Operating System: Kubuntu 22.04
KDE Plasma Version: 5.24.7
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
Kernel Version: 5.15.0-58-generic (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-3770 CPU @ 3.40GHz
Memory: 31.3 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 680/PCIe/SSE2

ADDITIONAL INFORMATION
I have compared a Unihedron SQM graph of the night and although it closely follows your sky quality reading. this time it didn't.

Comment 1 Len North 2023-01-30 21:57:08 UTC

Created attachment 155804 [details]
This is what I love about what the KStars team does - perfect

Sorry that I cannot even write a report properly
(2 more attachments to come)

Comment 2 Len North 2023-01-30 21:58:31 UTC

Created attachment 155805 [details]
Guiding history  with an RMS of 62.1 was outstanding then...

Comment 3 Len North 2023-01-30 22:05:52 UTC

Created attachment 155806 [details]
Earlier I had some issues with alignment where there were 6 tries but it was no closer to resolution.

Capture and solve has been the best part of following the Kstars development. It is fast and I don't want to go back to sitting outside driving PHD-2 from a laptop.
Thanks

Comment 4 Jasem Mutlaq 2024-06-11 12:37:39 UTC

I don't believe this is an Ekos Guide issue, many users are getting very good results with it, so I'll have to mark this as works-for-me.