https://bugs.kde.org/show_bug.cgi?id=495902
Bug ID: 495902
Summary: Kstars Ekos Guide Dithering Issue
Classification: Applications
Product: kstars
Version: 3.7.3
Platform: Mint (Ubuntu based)
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: general
Assignee: mutla...@ikarustech.com
Reporter: maggiora.ferr...@gmail.com
Target Milestone: ---
NOTE: I have reported it before in discuss.kde.org , but the only answer i
received is been to open an issue here.
STEPS TO REPRODUCE
1. impost dithering on on setup and number of dither pixel deviation (4 in my
case)
2. impost a number of lights frame after dithering operation perform (2 in my
case)
3. impost a time in seconds for telescope stabilization (10 in my case)
4. start guide
5. wait dither operation start at the and of two shots...
OBSERVED RESULT
When the dithering function is activated, at the end of a shot (or a series of
shots), the correct movement is performed for the new positioning of the mount,
but the guide, unlike the version (3.7.5), is not temporarily disabled, with
the result that it tries to move the mount back, canceling the dithering
operation. If the dithering is more important in terms of delta pixel (larger
movement) the guide sounds the alarm and starts to have problems, because the
guide star has moved too far away.
EXPECTED RESULT
In the previous version, when the dithering operation started, of course, the
guide was temporarily disabled, and at the end of the dithering and the
telescope stabilization time, it resumed, effectively resetting the position of
the guide star to the new DEC and RA position, centering it in the graph and in
the target.
SOFTWARE/OS VERSIONS: Kstar Ekos 3.7.3 (guide tab)/Linux Mint Cinnamon
ADDITIONAL INFORMATION
This issue causes the inability to perform an automatic imaging session. as it
forces you to manually intervene at each dithering operation, disabling
guiding and manually resuming the series of shots on the shooting tab, then
resuming guiding on the guide tab. The only option is to downgrade, or not use
dithering for long night exposures.
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