Outliers during guiding

[Marcin Owsiany]

Hello,

Tonight ekos (kstars 3.8.1) was happily guiding SNR of ~98 and steady RMS
of ~0.75'', when on a couple of occasions, the guide star was observed to
suddenly jump 110-185'', combined with a similarly rapid drop of SNR to the
level of 11 or 44.

I wasn't looking at the captured frame at that moment, so I don't know
whether this was indeed a jerk, or rather a satellite streak or similar.

The situation recovered immediately on the next capture, or the one after,
but the average RMS was completely destroyed for the following 7 minutes or
so.

See screenshot:

[image: guiding.png]

I guess it would make sense to change ekos to somehow skip such sudden
long-distance moves combined with sudden SNR drops? Currently the
compensating pulse it sends just makes things worse.

regards,
Marcin

BTW the SNR reported in the on-hover popup has units of arc-seconds ('') -
is that intentional?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/kstars-devel/attachments/20260314/d10f743a/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: guiding.png
Type: image/png
Size: 63667 bytes
Desc: not available
URL: <http://mail.kde.org/pipermail/kstars-devel/attachments/20260314/d10f743a/attachment-0001.png>