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Bi-monthly release with minor bug fixes and improvements

PPA Stellar Solver failed again and again

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Greetings. Today I experienced a problem with stellar solver trying to begin my astrophoto session with PPA. Yesterday and the day before yesterday, PPA worked fine. Today without changing anything, PPA refused to work properly and I didn't change anything. I usually do offline plate solving with the default Stellarsolver options. Default options didn't work so I try literally everything (default,small-largescale,online astrometry,high exposure time,high settle,everything - except local astrometry which gave me a EKOS crash the last time I tried to test it). I attach the logs and various photos to match the time with what Ekos was watching. Yesterday I managed to do PPA with fainter and fewer stars than today (attached photo). I can't really understand what happened today.

Simulations worked fine tho.

Thank you very much!!

 

File Attachment:

File Name: log_22-04-11.txt
File Size:1,846 KB

   
 
 
Last edit: 2 years 8 months ago by Georgios Lekkas.
2 years 8 months ago #73547
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in the Options disable Use scale.... and Update position ad try to solve again
2 years 8 months ago #73548

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Greetings Alessandro,

Thank you very much for your suggestion, I have noted it down. I have never changed "use scale" option tho,it was enabled everytime PPA worked fine,so why would that made PPA fail?

Best regards.
2 years 8 months ago #73553

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I do not know why, but this is a workaround.
This happens sometimes. It seems that images value, like width/height or others, are bad calculated and PlateSolve goes crazy
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2 years 8 months ago #73554

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Greetings again Alessandro. That seemed to be the solution. Plate solve worked great after unchecking the option. Thank you very much.

Best regards.
2 years 8 months ago #73649

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We ought to automatically try that on failure.
2 years 8 months ago #73668

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I agree, perhaps we can have an option that tries to solve once with using position and scale, if that doesn't work it can try again with just position, and if that doesn't work, it can do a totally blind solve.
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2 years 8 months ago #73731

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HI,
I also was having problems with PPA and in general, plate solving.

I think I had a similar issue, that once you have an incorrect telescope alignment or reported position incorrect, the solver
has a search radius of 15 degrees. I tried to change the search radius and it didn't seem to change anything. There might be
a bug on this setting?

Perhaps autofallback to blind solving would help? Clearer indication of what to change in the UI for blind solves?

... when it was working, it was so so fast though!

Peter
The following user(s) said Thank You: Jasem Mutlaq
2 years 8 months ago #73780

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