max sidorov replied to the topic 'Meridian Flip' in the forum. 1 week ago

Sorry - I didn't have logging to a file enabled...

El Corazon wrote:
Hi Max,

I am having exactly the same problem, but only lately. Can you post your log file, there is something I want to check with regards to the very slow slew. Please also post a recent one where the flip worked. I would like to compare them with the log on my iOptron mount where the flip failed in a similar manner as what you are describing.

Thx, Jo



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max sidorov replied to the topic 'After Latest Update - KStars Launch Issue' in the forum. 1 week ago

Yes. Only checked.
I guess, if you check with the Dashboard and there are updates they do get installed.

Megiddo wrote: So all you did was to check for an update?

I think I noticed that checking is all that is needed to get the latest. It kinda just does it. I'll remember to make sure I have a backup first (I do).



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Jose Corazon thanked max sidorov in topic Meridian Flip 1 week ago

max sidorov replied to the topic 'Meridian Flip' in the forum. 1 week ago

I was going to praise the meridian flip in Ekos as it didn't fail me... ever. I am praising it actually.
Last night, however, it did fail.
No updates to the system.
SM 1.5.2 on RPI4. Windows client. KStars 3.4.2.
Have been using this config since early March (in self-isolation).
So. Last night it failed. It started the flip but the slew never ended. The speed slowed down to almost zero and it was going and going and going very slowly...
I had to shut the system down and restart.
The night before was just fine (and many nights before too were fine).
Strange glitch.

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max sidorov replied to the topic 'After Latest Update - KStars Launch Issue' in the forum. 1 week ago

Tonight - same issue.
After checking for an update (SM 1.5.2) via SM Dashboard (indicated there were some updates), checked with Package Updater - there were some updates but those didn't look important to me so I didn't update.
Rebooted - Kstars, PHD2, SM Web Manager disappeared from the system.
Puzzling.
(Had a backup card so I am fine).

maxthebuilder wrote: I had the same thing about a week ago. StellarMate on RPI4.
There were some updates available via Package Updater. I updated.
KStars and PHD2 disappeared from the system after that.
sudo apt-get update && sudo apt-get -y dist-upgrade didn't help.

I don't know the right Linux terms for this... Maybe at the time I was updating, the packages were not fully packaged yet..
So, I restored a backup next day, ran sudo apt-get update && sudo apt-get -y dist-upgrade
and everything updated as it should.



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max sidorov replied to the topic 'Strange result during Polar Alignment' in the forum. 1 week ago

OK. Now I am convinced : )
- Aligned with mount's polar scope.
- Checked with the main scope. Error - 39'09"
- Checked with the guide scope. Error - 37'32"
- Aligned with the main scope. Error - 07'36"
- Checked with the guide scope. Error - 07'47"
Looks good to me!

maxthebuilder wrote: Oh... This is great!
Still a bit skeptical since as far as I remember when I PA aligned with the main scope and then repeated with the guider - the results were different.
It was a while ago.. Will double check...

Ihoujin wrote: Yes It's true. If the FOV is slightly off it can still work. But you should try to at least have the celestial pole in frame. Also a camera assisted polar alignment does not require being on the axis of rotation, only roughly parallel to it. That is why it is possible to use a guide scope, or mount a QHY polemaster on the dovetail bar of a telescope.



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max sidorov replied to the topic 'Strange result during Polar Alignment' in the forum. 2 weeks ago

I never used PHP2 and didn't realize it had a PA procedure.
Will give it a try.
Thanks!

dmsummers wrote: @Max: "The question is - which alignment to prefer?"

Without trying to be a smart..., you want a true PA. If PA tools/methods conflict, the way to know definitively is to drift align. PHD2's drift align tool is painless to use and simple; I ALWAYS use it. My advice would be to run both procedures, then compare answers (run PHD2 drift align last). You can trust what PHD is telling you about PA assuming you setup correctly (2 stars are required, one near DEC 0 south meridian, another near DEC 0 east or west horizon). If the methods agree, great. If they don't, you'll at least know. You can calibrate your polar scope position from the answer. Cheers, Doug



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max sidorov replied to the topic 'Strange result during Polar Alignment' in the forum. 2 weeks ago

Oh... This is great!
Still a bit skeptical since as far as I remember when I PA aligned with the main scope and then repeated with the guider - the results were different.
It was a while ago.. Will double check...

Ihoujin wrote: Yes It's true. If the FOV is slightly off it can still work. But you should try to at least have the celestial pole in frame. Also a camera assisted polar alignment does not require being on the axis of rotation, only roughly parallel to it. That is why it is possible to use a guide scope, or mount a QHY polemaster on the dovetail bar of a telescope.



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max sidorov replied to the topic 'Strange result during Polar Alignment' in the forum. 2 weeks ago

Andrew,
Are you saying that even if the scope is slightly off axis, the polar alignment will still be good?
The procedure takes care of the misalignment?
It would be great if that were true!

I've been using a mount without a polar scope for quite some time and I am sure my scope has been always a bit off.
I would run the PA align procedure in Ekos and the tracking would be good (with auto-guiding though).

Now. I recently got an HEQ5 with a polar scope. I don't know how well the polar scope is aligned but I hope it's good.
If I polar-align with the polar scope and then run the PA procedure in Ekos (with the main scope), I get 30'-50' difference.

The question is - which alignment to prefer?

Thanks!

Ihoujin wrote: The screen is just showing you where the camera is pointed, and the error correction vector is the magnitude of your alignment error, not a defined position such as the celestial pole.

It appears to me your telescope was a little bit off the home position of 90┬░dec. Not enough to worry about.



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max sidorov replied to the topic 'After Latest Update - KStars Launch Issue' in the forum. 4 weeks ago

Speaking of backups (maybe i need to create a separate topic about this).
I have been using Paragon Backup (Windows) for my backups successfully for more than a year.
It's nice since it produces small backups (4-5Gb), not 32Gb (for a 32Gb card) as DiskImager does.
Since SM changed to Raspbian/Buster, Paragon doesn't work anymore. It backs-up but doesn't restore correctly (the card wouldn't boot).
Interesting thing is that Astroberry backs-up/restores just fine. Same Raspbian/Buster...
Go figure...

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max sidorov replied to the topic 'After Latest Update - KStars Launch Issue' in the forum. 4 weeks ago

Yes! Luckily I did have a backup...

Megiddo wrote: ...I should have backed it first...



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max sidorov replied to the topic 'After Latest Update - KStars Launch Issue' in the forum. 4 weeks ago

I had the same thing about a week ago. StellarMate on RPI4.
There were some updates available via Package Updater. I updated.
KStars and PHD2 disappeared from the system after that.
sudo apt-get update && sudo apt-get -y dist-upgrade didn't help.

I don't know the right Linux terms for this... Maybe at the time I was updating, the packages were not fully packaged yet..
So, I restored a backup next day, ran sudo apt-get update && sudo apt-get -y dist-upgrade
and everything updated as it should.

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max sidorov replied to the topic 'oaCapture does not run (rpi3)' in the forum. 4 weeks ago

I might give it a try... Thanks!

mpcollins wrote: You may want to post this question in the software forum at Stargazer's Lounge. I don't know if the lead developer for oaCapture monitors this forum, but he is quite responsive to questions posted at SGL.



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max sidorov replied to the topic 'oaCapture does not run (rpi3)' in the forum. 4 weeks ago

FireCapture works but uses too much resource... 70% CPU, 70% RAM when idling... : (

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