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Job sequencer / auto guide problems

  • Posts: 23
  • Thank you received: 1

Replied by Bill Hogoboom on topic Job sequencer / auto guide problems

Hi Wolfgang - I've re-run the simulation of a 2x2 mosaic of an object as it crosses the meridian. The logs show both the proper handling of the meridian flip and the poor behavior when switching from panel to panel in the mosaic. I've made some notes in the log and you can find them by searching for the string "????". In the meantime I'll be installing and trying to learn PHD2. Thanks for your help.
AT8RC Astrograph on CGX mount
ASI-071 C camera or
Pentax K3ii DSLR
60mm Orion guide scope w/QHY5II camera
Feather Touch 2" focuser w/ Focus Lynx auto focus
PPB Power Center, GPS, Temp/Humidity Sensor
7 port powered USB hub to HP Laptop over 30' powered USB cable
KStars / EKOS
Last edit: 4 years 10 months ago by Bill Hogoboom.
4 years 10 months ago #39538
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Replied by Eric on topic Job sequencer / auto guide problems

Thanks for reporting this. Your comments are on spot.
From the log, Scheduler does not stop guiding and capturing as it should when deciding to change the workflow.
It manages its decision as if it was a hiccup in a running observation, while it should properly stop guiding, stop capturing, slew around then restart procedures.
Because it is a workflow issue, the same problem(s) will probably happen with PHD2 as guider. PHD2 will eventually be more robust on recovering guiding.
We'll look into this as soon as possible.

-Eric
4 years 10 months ago #39554

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Replied by Wolfgang Reissenberger on topic Job sequencer / auto guide problems

What is surprising for me is, that we do not get a "lost star" event from the guider and at the same time a drift is reported from the guider.
4 years 10 months ago #39557

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Replied by Wolfgang Reissenberger on topic Job sequencer / auto guide problems

I think I found an explanation what happens. It seems like the internal guider recovers itself after the slew and starts guiding faster than the scheduler:
[2019-05-27T11:56:47.763 PDT INFO ][ org.kde.kstars.ekos.scheduler] - "Job 'NGC884-Part4' repositioning is complete."
...
[2019-05-27T11:56:48.764 PDT INFO ][     org.kde.kstars.ekos.guide] - "Autoguiding started."
[2019-05-27T11:56:48.772 PDT DEBG ][     org.kde.kstars.ekos.guide] - Capturing frame...
[2019-05-27T11:56:48.773 PDT INFO ][ org.kde.kstars.ekos.scheduler] - "Starting guiding procedure for NGC884-Part4 ..."
[2019-05-27T11:56:48.773 PDT DEBG ][ org.kde.kstars.ekos.scheduler] - Guide State "Guiding"
[2019-05-27T11:56:48.773 PDT DEBG ][ org.kde.kstars.ekos.scheduler] - Calibration & Guide stage...
[2019-05-27T11:56:48.773 PDT INFO ][ org.kde.kstars.ekos.scheduler] - "Job 'NGC884-Part4' guiding is in progress."

And here in comparison a sequence from my log file where everything works fine:
[2019-05-26T23:10:41.643 CEST INFO ][ org.kde.kstars.ekos.scheduler] - "Starting guiding procedure for M 64 ..."
[2019-05-26T23:10:41.691 CEST INFO ][     org.kde.kstars.ekos.guide] - "PHD2: Lock Position Lost."
[2019-05-26T23:10:44.359 CEST INFO ][     org.kde.kstars.ekos.guide] - "PHD2: Lock Position Set."
[2019-05-26T23:10:44.378 CEST INFO ][     org.kde.kstars.ekos.guide] - "PHD2: Star Selected."
[2019-05-26T23:10:49.377 CEST INFO ][     org.kde.kstars.ekos.guide] - "PHD2: Lock Position Set."
[2019-05-26T23:10:49.408 CEST INFO ][     org.kde.kstars.ekos.guide] - "PHD2: Guiding Started."
[2019-05-26T23:10:49.418 CEST INFO ][     org.kde.kstars.ekos.guide] - "Autoguiding started."
[2019-05-26T23:10:49.465 CEST INFO ][ org.kde.kstars.ekos.scheduler] - "Job 'M 64' guiding is in progress."
Does anybody have experience with the internal guider?

- Wolfgang
4 years 10 months ago #39611

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Replied by Jasem Mutlaq on topic Job sequencer / auto guide problems

The issue was in the scheduler. I fixed it in this commit .
4 years 10 months ago #39636

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Replied by Bill Hogoboom on topic Job sequencer / auto guide problems

This is great. Thank you.

I don't know how to work with the Git link you provided. How long before it makes the nightly release if it's not there already? And how can we know when this or any other fix moves from nightly to stable?
AT8RC Astrograph on CGX mount
ASI-071 C camera or
Pentax K3ii DSLR
60mm Orion guide scope w/QHY5II camera
Feather Touch 2" focuser w/ Focus Lynx auto focus
PPB Power Center, GPS, Temp/Humidity Sensor
7 port powered USB hub to HP Laptop over 30' powered USB cable
KStars / EKOS
4 years 10 months ago #39652

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Replied by Jasem Mutlaq on topic Job sequencer / auto guide problems

It's in nightly already and is in stable with today's v3.2.3 release... but we didn't officially announce v3.2.3 since we have issues with the Windows build so hopefully tomorrow we'll announce it.
4 years 10 months ago #39677

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Replied by Bill Hogoboom on topic Job sequencer / auto guide problems

Using both the nightly (2019-05-30 13:10:05) and stable (2019-05-30 9:48:47) I have the same problems - no change in behavior. Guiding fails to re-calibrate on mosaic panel changes and focus is not called on either panel changes or meridian flip. Log attached...
AT8RC Astrograph on CGX mount
ASI-071 C camera or
Pentax K3ii DSLR
60mm Orion guide scope w/QHY5II camera
Feather Touch 2" focuser w/ Focus Lynx auto focus
PPB Power Center, GPS, Temp/Humidity Sensor
7 port powered USB hub to HP Laptop over 30' powered USB cable
KStars / EKOS
4 years 10 months ago #39728
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Replied by Wolfgang Reissenberger on topic Job sequencer / auto guide problems

Hi Viejo,
I did a similar test. For me it seems this looks like a problem with the internal guider. After slewing it seems like it does not select a new star. But I am neither really familiar with the internal guider nor do I really have experience with the guiding simulator.

I will do a check with PHD2 with simulators so that I can help you setting it up.

Wolfgang
4 years 10 months ago #39731

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Replied by Wolfgang Reissenberger on topic Job sequencer / auto guide problems

Hi Viejo,
it seems like I stepped into a similar problem this night. I had the scope already positioned to the target and PHD2 guiding was running. When I started the schedule with this target, the mount did only slew a tiny bit leaving PHD2 guiding - but interestingly it slewed enough so that there was no star any more. PHD2 reported "star lost", but did not terminate or restart the guiding.

Anyway, it seems like - in some situations at least - slewing does not automatically terminate guiding. I'll take a closer look...

- Wolfgang
4 years 10 months ago #39778

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Replied by Bill Hogoboom on topic Job sequencer / auto guide problems

This was reported fixed a month ago but it's not fixed. The problem isn't just with the mosaic jobs. The only time the scheduler behaves correctly is when it detects a change in pier side, a crossing of the meridian. I set up a job sequence with 2 objects on the rising side of the meridian, then 2 on the setting side and then 2 more on the rising side. When switching to a job on the same side of the meridian, it behaves as if it still has the guide star when in fact it's many degrees away. Switching to a job on the opposite side, it recognizes the need to recalibrate and behaves correctly.

It should be a simple fix to have it set the recalibrate flag when it detects any SLEW, not just a meridian change.

Attached is a log. I edited out a bunch of focuser commands that are irrelevant.
AT8RC Astrograph on CGX mount
ASI-071 C camera or
Pentax K3ii DSLR
60mm Orion guide scope w/QHY5II camera
Feather Touch 2" focuser w/ Focus Lynx auto focus
PPB Power Center, GPS, Temp/Humidity Sensor
7 port powered USB hub to HP Laptop over 30' powered USB cable
KStars / EKOS
4 years 9 months ago #40907
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Replied by Wolfgang Reissenberger on topic Job sequencer / auto guide problems

Is PHD2 configured to abort when the mount moves? This needs to be configured, kstars does not abort guiding when slewing. If you are not using pulse guiding, it might be the case that you need to set your mount as aux mount in PHD2 so that it recognizes slewing.

Wolfgang
4 years 9 months ago #40998

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