Alex Varakin replied to the topic 'Speeding up plate solving on RPi 3' in the forum. 1 week ago

It is for reference images. I normally image same objects several nights so I use previous night's image as a reference.

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Alex Varakin created a new topic ' Speeding up plate solving on RPi 3' in the forum. 1 week ago

It currently takes about 30s to plate solve a full size image 3500x2500 on my RPi3. It seems the most time is taken by image prep whereas plate solving itself is very fast. I am using sextractor because it makes solving more reliable. Was anyone able to speed up solving on RPi? How did you do this?

Alex

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Alex Varakin replied to the topic 'Driver OnStep (LX200 like) for INDI' in the forum. 1 month ago

I will capture the logs next time I do imaging and see this issue. Also I will try other plate solving software - CCDCiel and see if the same issue is present there.
Easy way to reproduce it is to set the tolerance of pointing to some very low value, less than 1'. In this case most of the time you end up with a precision slew and it gets stuck.

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Alex Varakin replied to the topic 'Driver OnStep (LX200 like) for INDI' in the forum. 1 month ago

I posted the following message on Onstep forum:

I am having a slight problem with my OnStep converted G11.
I am using kstars plate solving for precision slewing to a target. It all works great and mount slews to an area of the target and only the last precision slew (which is most of the time less than 2') has a trouble: kstars keeps waiting for the mount to slew but it gets stuck. It seems that the mount does slew because if I abort the slew from INDI panel, I see that the mount points exactly where it is supposed to be.
I am running the following software:
-Linux Manjaro
-Month old version of OnStep beta
-Month old azwing's branch of INDI drivers
-Latest kstars

I wonder if anyone else has seen this issue and/or has any ideas on how to solve this. For now, a workaround is to abort the slew in INDI panel.
I have no idea where this issue is coming from - OnStep, INDI drivers or kstars.


Here is the responce I received from Khalid:

What you describe is almost identical to a symptom I have on another non-OnStep mount (Vixen Sky Sensor 2000 PC): basically what happens is that the INDI cannot detect that the slew is done, and thinks that the mount is still slewing, hence it is 'stuck'. And the reason INDI cannot detect this end of slew condition, is that it relies on a tolerance of the difference between the current RA/DEC and the target RA/DEC.

I had to add two configurable parameters for this within INDI, and cannot set them lower than a certain value (forgot which, but it is quite large, tens of arc minutes).

Now, OnStep uses a different mechanism to detect end of slew, not relying on target vs. current coordinates. Instead, OnStep has the result of the :GU# command to report slewing and tracking. If there is a capital N in the command, then the slew is over.

Checking the LX200_OnStep::ReadScopeStatus function, it seems to be doing this detection in a bit convoluted way, e.g. checking for 'n' [not tracking] and 'N' [Not slewing] at the same time. But I can't affirm if there is a bug there or not. Perhaps ask Alain (azwing), the maintainer of the INDI driver for OnStep, for a second opinion.


Alain et al,
Do you have any thoughts on this issue?

Alex

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Alex Varakin replied to the topic 'Kstars Integration issue with Gnome desktop' in the forum. 3 months ago

Thanks Jasem!
This seems to be a common issue with KDE - while researching this issue, I found a lot of people complaining about the same issue with konsole.
I think this issue is really with Gnome, but workaround with desktop file is too simple :-)

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Alex Varakin created a new topic ' Kstars Integration issue with Gnome desktop' in the forum. 3 months ago

Hi,
Kstars has a problem with adding to favorites in Gnome desktop. I am running 2.9.6 on Gnome edition of Manjaro.
I was able to fix this issue by adding:
StartupWMClass=kstars
to /usr/share/applications/org.kde.kstars.desktop
It would be nice if the original package would also get this fixed.
Alex

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Alex Varakin replied to the topic 'Driver OnStep (LX200 like) for INDI' in the forum. 3 months ago

I am currently using azwing's private INDI branch for running my system because with the code in the main branch KStars does not see ONstep focuser. I was wondering when this branch will be merged into main branch? Do we need to do more testing? I can help with this.

Alex.

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Alex Varakin replied to the topic 'Driver OnStep (LX200 like) for INDI' in the forum. 3 months ago

How about PEC data? Arent we moving it back and forth between device and client?

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Alex Varakin replied to the topic 'Driver OnStep (LX200 like) for INDI' in the forum. 3 months ago

Around one week ago it was good. BTW, I also had an issue with compiling some other 3rd party driver, I think it was apogee.
We can probably try to use git bisect command which finds a bug using binary search:
git-scm.com/docs/git-bisect

Alex

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Alex Varakin replied to the topic 'Driver OnStep (LX200 like) for INDI' in the forum. 3 months ago

I have the same issue with the latest build

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Alex Varakin replied to the topic 'Driver OnStep (LX200 like) for INDI' in the forum. 3 months ago

Hi Ray,

I could not find the clock icon you are referring to. Where is it?
I was also thinking about getting a RTC too, this should be useful for imaging at a remote site with my RPi which does not have clock. Is it possible to attach GPS to Onstep as a source of accurate time?
Alex

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Alex Varakin replied to the topic 'Setting up astro software under Manjaro (or Arch) Linux' in the forum. 3 months ago

Some of them are in the main repo like KStars but rest are in AUR.

Alex

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Alex Varakin replied to the topic 'Driver OnStep (LX200 like) for INDI' in the forum. 3 months ago

Khalid, Are you doing Astro Photography at night? If so, CCDCiel is a great match for CDC. It runs the camera, focuser, plate solving etc.

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Alex Varakin replied to the topic 'Driver OnStep (LX200 like) for INDI' in the forum. 3 months ago

Hey Khalid!
ccdciel is a lesser known software by Patrick Chevalley, who also wrote CdC. It is similar to Ekos and is intended for imaging. I run my setup under Linux using INDI, ccdiciel for image capturing and CdC as a planetarium. I tried using Ekos few times but had weird issues, on the other hand ccdciel is extremely stable for me.
Thank you for confirming that Ekos has a feature to sync the clock. I filed a feature request with ccdciel about having the same feature in ccdciel, but then I thought that maybe this feature shoudl be in the INDI driver so that all clients can get use of this feature.

Alex

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Alex Varakin replied to the topic 'Driver OnStep (LX200 like) for INDI' in the forum. 3 months ago

Another question I have is about focuser - looks like only the private branch in github has the code which allows the focuser to be visible in KStars. The public release does not have this feature yet. What is the plan in terms of merging this code into the public release?

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Alex Varakin replied to the topic 'Driver OnStep (LX200 like) for INDI' in the forum. 3 months ago

I ran into an issue with Onstep and ccdciel combination where clock of onstep is not initialized with current clock of PC. As a result, mount positioning is totally off. Interestingly KStars does not have this issue - it seems to be sending the currend data/time to Onstep.
Initially I thought that the fix should be in ccdciel but later changed my mind and am thinking that maybe this should be fixed in the INDI driver. Maybe more conservative approach would be to have a button somewhere in the INDI control panel which would allow user to initialize the date/time manually.
What are your thoughts?
Alex

Alex

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Alex Varakin created a new topic ' Setting up astro software under Manjaro (or Arch) Linux' in the forum. 3 months ago

Hi,

Manjaro distribution is currently becoming one of the most popular distributions. According to Distrowatch, it is the most popular distribution and for a good reason: it is very easy to install, provides access to very recent packages and at the same time it is pretty stable. I am running it for about a year and am very happy so far.
So I decided to try to setup all the astronomy software I use under Manjaro. It turned out pretty simple once I figured out few issues. I wrote a script which should do the whole thing without much effort. It installs KSstars/Ekos, PHD2, astrometry, ccdciel, SkyChart, indi and sextractor (which is highly recommended to help with plate solving).
Here is the script:

sudo pacman -Syu
sudo pacman -S --needed kstars breeze-icons yaourt arduino binutils patch cmake make libraw libindi wxgtk2 gpsd gcc

yaourt -Sya --noconfirm ccdciel
yaourt -Sya --noconfirm libindi_3rdparty
yaourt -Sya --noconfirm open-phd-guiding-git
yaourt -Sya --noconfirm skychart
yaourt -Sya sextractor-bin
yaourt -Sya astrometry.net

wget broiler.astrometry.net/\~dstn/4100/index-4107.fits
wget broiler.astrometry.net/\~dstn/4100/index-4108.fits
wget broiler.astrometry.net/\~dstn/4100/index-4109.fits
sudo mv index-410[789].fits /usr/share/astrometry/data

Please let me know what you think.

Alex

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