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Sudden problems with plate solving Kstars 3.6.8

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Replied by Toni Schriber on topic Sudden problems with plate solving Kstars 3.6.8

Most surprisingly we had a almost clear sky for a couple of hours yesterday evening and I could finally run some tests with difference slewing with the real rig. After some adjustments all the tests succeeded!
I want to do some more tests and I'm looking forward for all who can contribute a feedback:
Project "Difference Slewing" (Version 5.1.2024 with more logs):
I hope I can put a new MR soon.
Last edit: 4 months 6 days ago by Toni Schriber.
4 months 6 days ago #97935

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Replied by Bryan Ramsey on topic Sudden problems with plate solving Kstars 3.6.8

This is great news! I will try it out tonight. (assuming you updated the binary). It looked like you did, so I've copied it in.

Thanks again!
4 months 6 days ago #97941

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Replied by Bryan Ramsey on topic Sudden problems with plate solving Kstars 3.6.8

Toni, was there an updated binary? Im still getting the same issue with what I thought was a new binary you updated after you said it seemed fixed.

Can you confirm?
4 months 3 days ago #97974

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Replied by Bryan Ramsey on topic Sudden problems with plate solving Kstars 3.6.8

Ok, maybe I downloaded it before you updated it. I just went to the link again and it was a different binary. 3.6.9 beta. So In downloaded that and it seems to be working now!

After a little more testing, I had one instance where I saw a enormous offset. I was using the scheduler however, not sure if that makes a difference. Then the next time I tried it worked fine again.

Here is the console log from these runs:
2024-01-08T19:31:10 Target is within acceptable range.
2024-01-08T19:31:10 Target is within  00° 00' 02" degrees of solution coordinates.
2024-01-08T19:31:10 Solution coordinates: RA (05h 18m 07s) DEC ( 34° 27' 56") Telescope Coordinates: RA (05h 18m 06s) DEC ( 34° 28' 23") Target Coordinates: RA (05h 18m 06s) DEC ( 34° 28' 23")
2024-01-08T19:31:10 CAT - Diff: RA (00:00:00) DEC (-00° 00' 02").
2024-01-08T19:31:10 CAT - Destination: RA (05:18:07) DEC (+34° 27' 58").
2024-01-08T19:31:10 CAT - Solution: RA (05:18:07) DEC (+34° 27' 56").
2024-01-08T19:31:10 Solver completed after 0.31 seconds.
2024-01-08T19:31:09 Image received.
2024-01-08T19:31:02 Capturing image...
2024-01-08T19:31:00 Slew complete. Target accuracy is not met, running solver again...
2024-01-08T19:30:57 Slewing to target coordinates: RA (05h 18m 06s) DEC ( 34° 28' 23").
2024-01-08T19:30:57 STT - Target-Diff: RA (05:18:06) DEC (+34° 28' 23").
2024-01-08T19:30:57 STT - Diff: RA (23:59:58) DEC (-00° 00' 16").
2024-01-08T19:30:57 Target is within  00° 00' 28" degrees of solution coordinates.
2024-01-08T19:30:57 Solution coordinates: RA (05h 18m 05s) DEC ( 34° 27' 41") Telescope Coordinates: RA (05h 18m 05s) DEC ( 34° 28' 06") Target Coordinates: RA (05h 18m 05s) DEC ( 34° 28' 07")
2024-01-08T19:30:57 CAT - Diff: RA (00:00:02) DEC (-00° 00' 16").
2024-01-08T19:30:57 CAT - Destination: RA (05:18:07) DEC (+34° 27' 58").
2024-01-08T19:30:57 CAT - Solution: RA (05:18:05) DEC (+34° 27' 41").
2024-01-08T19:30:57 Solver completed after 0.29 seconds.
2024-01-08T19:30:57 Image received.
2024-01-08T19:30:49 Capturing image...
2024-01-08T19:30:45 Changing filter to L...
2024-01-08T19:27:47 Target is within acceptable range.
2024-01-08T19:27:47 Target is within  00° 00' 03" degrees of solution coordinates.
2024-01-08T19:27:47 Solution coordinates: RA (05h 18m 07s) DEC ( 34° 27' 55") Telescope Coordinates: RA (05h 18m 06s) DEC ( 34° 28' 22") Target Coordinates: RA (05h 18m 06s) DEC ( 34° 28' 22")
2024-01-08T19:27:47 CAT - Diff: RA (00:00:00) DEC (-00° 00' 03").
2024-01-08T19:27:47 CAT - Destination: RA (05:18:07) DEC (+34° 27' 58").
2024-01-08T19:27:47 CAT - Solution: RA (05:18:07) DEC (+34° 27' 55").
2024-01-08T19:27:47 Solver completed after 0.34 seconds.
2024-01-08T19:27:46 Image received.
2024-01-08T19:27:39 Capturing image...
2024-01-08T19:27:38 Slew complete. Target accuracy is not met, running solver again...
2024-01-08T19:27:36 Slewing to target coordinates: RA (05h 18m 06s) DEC ( 34° 28' 22").
2024-01-08T19:27:36 STT - Target-Diff: RA (05:18:06) DEC (+34° 28' 22").
2024-01-08T19:27:36 STT - Diff: RA (00:00:00) DEC (-00° 00' 25").
2024-01-08T19:27:36 Target is within  00° 00' 25" degrees of solution coordinates.
2024-01-08T19:27:36 Solution coordinates: RA (05h 18m 07s) DEC ( 34° 27' 33") Telescope Coordinates: RA (05h 18m 07s) DEC ( 34° 27' 57") Target Coordinates: RA (05h 18m 07s) DEC ( 34° 27' 58")
2024-01-08T19:27:36 CAT - Diff: RA (00:00:00) DEC (-00° 00' 25").
2024-01-08T19:27:36 CAT - Destination: RA (05:18:07) DEC (+34° 27' 58").
2024-01-08T19:27:36 CAT - Solution: RA (05:18:07) DEC (+34° 27' 33").
2024-01-08T19:27:36 Solver completed after 0.33 seconds.
2024-01-08T19:27:35 Image received.
2024-01-08T19:27:27 Capturing image...
2024-01-08T19:27:00 Solver aborted after 92.05 seconds.
2024-01-08T19:25:28 Slewing to target coordinates: RA (23h 56m 00s) DEC ( 180° 00' 28").
2024-01-08T19:25:28 STT - Target-Diff: RA (23:56:00) DEC (+180° 00' 28").
2024-01-08T19:25:28 STT - Diff: RA (05:22:05) DEC (-145° 32' 21").
2024-01-08T19:25:28 Target is within  166° 19' 42" degrees of solution coordinates.
2024-01-08T19:25:28 Solution coordinates: RA (05h 18m 05s) DEC ( 34° 27' 39") Telescope Coordinates: RA (05h 18m 05s) DEC ( 34° 28' 06") Target Coordinates: RA (05h 18m 05s) DEC ( 34° 28' 07")
2024-01-08T19:25:28 WCS information updated. Images captured from this point forward shall have valid WCS.
2024-01-08T19:25:28 CAT - Diff: RA (05:22:05) DEC (-145° 32' 21").
2024-01-08T19:25:28 CAT - Destination: RA (23:56:00) DEC (+180° 00' 00").
2024-01-08T19:25:28 CAT - Solution: RA (05:18:05) DEC (+34° 27' 39").
2024-01-08T19:25:28 Solver completed after 0.34 seconds.
2024-01-08T19:25:27 Image received.
2024-01-08T19:25:20 Capturing image...
2024-01-08T19:25:15 Changing filter to L...
2024-01-08T19:20:32 World Coordinate System (WCS) is enabled.
4 months 3 days ago #97975

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Replied by Toni Schriber on topic Sudden problems with plate solving Kstars 3.6.8

Hi Bryan
For a couple of days the forum had some problems and there was no access for users. So I could not inform about the progress with the refactor of the "differential slewing" option. I've put indeed two versions of KStars meanwhile. It is the newest version from yesterday (7.1.2024), which seems quite good now. I think it is this version you're referencing. I did not test the scheduler yet, but all my tests with a direct method ([Capture & Solve] or [Load & Slew]) were successful. I think the project is on the right way.
I will have a look at your log this afternoon.
Last edit: 4 months 2 days ago by Toni Schriber.
4 months 2 days ago #97983

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Replied by Bryan Ramsey on topic Sudden problems with plate solving Kstars 3.6.8

It happened again, but I didn't post it last night.

2024-01-08T22:22:32 Slewing to target coordinates: RA (23h 56m 12s) DEC ( 179° 59' 25").
2024-01-08T22:22:32 STT - Target-Diff: RA (23:56:12) DEC (+179° 59' 25").
2024-01-08T22:22:32 STT - Diff: RA (03:49:53) DEC (-147° 45' 00").
2024-01-08T22:22:32 Target is within 158° 32' 04" degrees of solution coordinates.
2024-01-08T22:22:32 Solution coordinates: RA (03h 45m 53s) DEC ( 32° 15' 00") Telescope Coordinates: RA (03h 46m 06s) DEC ( 32° 14' 27") Target Coordinates: RA (03h 46m 06s) DEC ( 32° 14' 25")
2024-01-08T22:22:32 WCS information updated. Images captured from this point forward shall have valid WCS.
2024-01-08T22:22:32 CAT - Diff: RA (03:49:53) DEC (-147° 45' 00").
2024-01-08T22:22:32 CAT - Destination: RA (23:56:00) DEC (+180° 00' 00").
2024-01-08T22:22:32 CAT - Solution: RA (03:45:53) DEC (+32° 15' 00").
2024-01-08T22:22:32 Solver completed after 0.37 seconds.
2024-01-08T22:22:32 Image received.
2024-01-08T22:22:24 Capturing image...
2024-01-08T22:22:19 Changing filter to L...
2024-01-08T22:13:59 World Coordinate System

Thanks again

Bryan
4 months 2 days ago #97986

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Replied by Toni Schriber on topic Sudden problems with plate solving Kstars 3.6.8

Yes, I see the point! Both logs show the same error: The target or destination is not set correctly. I saw this in my early tests too: The target shows sort of a initialization value of RA (23:56:00) DEC (+180° 00' 00") which of course is impossible and leads to an impossible difference of 158° 32' 04" degrees.

2024-01-08T22:22:32 Target is within 158° 32' 04" degrees of solution coordinates.
2024-01-08T22:22:32 Solution coordinates: RA (03h 45m 53s) DEC ( 32° 15' 00") Telescope Coordinates: RA (03h 46m 06s) DEC ( 32° 14' 27") Target Coordinates: RA (03h 46m 06s) DEC ( 32° 14' 25")
2024-01-08T22:22:32 WCS information updated. Images captured from this point forward shall have valid WCS.
2024-01-08T22:22:32 CAT - Diff: RA (03:49:53) DEC (-147° 45' 00").
2024-01-08T22:22:32 CAT - Destination: RA (23:56:00) DEC (+180° 00' 00").
2024-01-08T22:22:32 CAT - Solution: RA (03:45:53) DEC (+32° 15' 00").
2024-01-08T22:22:32 Solver completed after 0.37 seconds.

With the newest binary however I can not reproduce the above cycle where the solver completes and the difference between solution and target (CAT) is calculated sequentially. This is not possible with a solve from a file. Can you describe the exact procedure that produces the log above?
Last edit: 4 months 2 days ago by Toni Schriber.
4 months 2 days ago #97987

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Replied by Bryan Ramsey on topic Sudden problems with plate solving Kstars 3.6.8

My general procedure until I learn scheduler more and get my startup/shutdown scripts debugged is as follows;

Once everything is online/dome open etc.

Select a target either on my phone (connected via SkySafari --> indi, or in Kstars OR in TSX, and issue a slew. Then Ill go in EKOS to the alignment tab and and choose Capture and Solve. In the past this never failed to center the object or the chosen point. Then generally I would go to the scheduler and click on the button below the search spyglass "Fill coordinates with Sky Map center". Type in a name, and choose one of my pre-saved sequence files. Then add to the queue and start it. Im not using scheduler for queuing multiple targets or as a real queue at this point. Always before the bug started, scheduler worked fine this way. I had even sometimes if I knew the object being centered e.g. a galaxy is fine I would just use the spyglass in Scheduler, and put it in the object name without an initial slew and correct which also centers the object astrometrically.

Last night I was shooting M42 and was (narrow field of view in my rig) trying to center on Trapezium (rather than just M42 center as the skymap presents it) and it kept saying it was within the tolerance. So I lowered the tolerance to 5 arcsec, and it still wouldn't center that area (stating that it was within the limit already). I'm not sure why because normally like I said I would center the skymap where I want it and then do the Capture and Solve, and it always worked. At any rate Ive set the tolerance back to 30 (what I had been using before).

I have already closed Kstars so the log in the console seems to be gone. Where can I get that from to post here?

Thanks.

Bryan
4 months 1 day ago #98001

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Replied by Toni Schriber on topic Sudden problems with plate solving Kstars 3.6.8

Then Ill go in EKOS to the alignment tab and and choose Capture and Solve.
That's strange, because I deliberately introduced a routine that catches the impossible initialization values RA (23:56:00) DEC (+180° 00' 00") if a [Capture & Solve] is activated. In this case the program should demand the coordinates of a real object. So are you really using the version from 7.1.24 19:04?

Last night I was shooting M42 and was (narrow field of view in my rig) trying to center on Trapezium (rather than just M42 center as the skymap presents it) and it kept saying it was within the tolerance.
It's the peculiarity of the option "difference slewing" that the crosshairs do not point to the actual position on the planetarium, if the sky model has a slight offset.

So I lowered the tolerance to 5 arcsec, and it still wouldn't center that area (stating that it was within the limit already
Perhaps it's the same fact as above? I'll try that too and report back. EDIT: Ok, I did not have any problems with 5 arcsecs.
Last edit: 4 months 1 day ago by Toni Schriber.
4 months 1 day ago #98004

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Replied by Bryan Ramsey on topic Sudden problems with plate solving Kstars 3.6.8

It says Build 2024-01.06T15:32:02Z

so maybe not.
4 months 1 day ago #98005

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Replied by Bryan Ramsey on topic Sudden problems with plate solving Kstars 3.6.8

I just re-downloaded, and it looks identical
-rwxrwxr-x 1 pterodyne pterodyne 20037608 Jan  8 18:46  kstars*
-rw-r--r-- 1 pterodyne pterodyne 20037608 Jan 10 13:14 'kstars(1)'

At least in bytes.

downloaded from here:

invent.kde.org/escriban/kstars/-/issues/1
4 months 1 day ago #98006

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Replied by Bryan Ramsey on topic Sudden problems with plate solving Kstars 3.6.8

ok so upon opening it and going to about, the build is the same. So I must be using the latest unless you didn't upload a new one after the change. Build: 2024-01-06T15:32:02Z

So maybe you didn't upload the latest? because it is a different time than what you said: 7.1.24 19:04
4 months 1 day ago #98007

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