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Guiding - Calibration failing

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Guiding - Calibration failing was created by Alex

Hi all,

I am fresh starting with astrophotography and facing one problem I cant get fixed.

I am suing an EQ5 Pro Mount over USB to my laptop running Ubuntu and Kstars. Everytime starting Guiding I am getting after 20 attempts the error that RA drift reverse failed.
Mount is full functional and can be controlled over mount tab, GoTo is also working. Setup is balanced and getting the same error with ST4 cable.

Any suggestions or Ideas ?
If more information is needed just let me know.
Thanks in advance.
1 year 1 month ago #90898
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Replied by Wolfgang Reissenberger on topic Guiding - Calibration failing

Hi Alex,
welcome to the forum!
Could you please post your logs for further investigation? Here is an explanation how to create them: www.indilib.org/support/logs-submission.html

Cheers
Wolfgang
1 year 1 month ago #90899

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Replied by Alex on topic Guiding - Calibration failing

Hi Wolfgang,

thank you.
I have forgotten to set the logging to debug, have only the normal logs here. Maybe this helps already.
Will create tonight new logs with debug.

File Attachment:

File Name: ekos-2023-...2-26.log
File Size:37 KB

File Attachment:

File Name: guide_log-...2-26.txt
File Size:5 KB
1 year 1 month ago #90900
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Replied by Rafael Schlegel on topic Guiding - Calibration failing

Can you show a screenshot of your Optical Train configuration?
I had a similar issue with a wrong configuration.
1 year 1 month ago #90901

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Replied by Alex on topic Guiding - Calibration failing

Hi guys,

please find here the logs from today.

A screenshot of my train for the Guiding.

File Attachment:

File Name: log_19-34-29.txt
File Size:732 KB
1 year 1 month ago #90909
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Replied by Rafael Schlegel on topic Guiding - Calibration failing

Ok the optical train looks ok to me.
But is this your only train? Maybe you can try to add a secondary train for your guiding setup without a mount in the mount field. And put your imaging setup in this primary train.
1 year 1 month ago #90910

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Replied by Alex on topic Guiding - Calibration failing

I had a primary train just for my imaging setup and the train in the screenshot as secondary.
For troubleshooting I have created a new profile and added only the train with the guiding equipment to avoid other sources of errors.
1 year 1 month ago #90912

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Replied by Rafael Schlegel on topic Guiding - Calibration failing

Ok i understand.
Then unfortunately I can't help. I hope someone sees an error in your log.
My error was the same with a wrong train configuration.
Last edit: 1 year 1 month ago by Rafael Schlegel.
1 year 1 month ago #90913

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Replied by Wolfgang Reissenberger on topic Guiding - Calibration failing

Hi Alex,
if I understand your log right then is your mount pointing at Polaris. That's definitely not a good position for guide calibrating.

Take a position somewhere close to the celestial equator, ideally close to its intersection the meridian (not too close to avoid a meridian flip)

HTH
Wolfgang
1 year 1 month ago #90914

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Replied by Alex on topic Guiding - Calibration failing

Hi Wolfgang,

you are right, had a little miss alignment. Have fixed that.
Please see the new log.

File Attachment:

File Name: log_20-00-29.txt
File Size:417 KB
1 year 1 month ago #90916
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Replied by Wolfgang Reissenberger on topic Guiding - Calibration failing

OK, with that position calibration should work, but obviously It doesn't. It seems when EKOS tries to reverse the RA motion after three successful steps, moving back has only effect in one direction.

The first three steps RA increase the x-axis and decrease the y-axis positions:
[2023-02-26T20:44:04.123 CET DEBG ][     org.kde.kstars.ekos.guide] - Iteration # 1 : STAR  146.543 , 246.288
[2023-02-26T20:44:08.505 CET DEBG ][     org.kde.kstars.ekos.guide] - Iteration # 2 : STAR  148.05 , 242.722
[2023-02-26T20:44:12.911 CET DEBG ][     org.kde.kstars.ekos.guide] - Iteration # 3 : STAR  149.442 , 238.707

But when it reverses the direction, the y-axis position still decreases:
[2023-02-26T20:44:17.303 CET DEBG ][     org.kde.kstars.ekos.guide] - Iteration # 4 : STAR  148.179 , 235.289
[2023-02-26T20:44:21.688 CET DEBG ][     org.kde.kstars.ekos.guide] - Iteration # 5 : STAR  146.66 , 231.959
[2023-02-26T20:44:26.097 CET DEBG ][     org.kde.kstars.ekos.guide] - Iteration # 6 : STAR  145.836 , 228.362
...

Hm, now we need somebody with an EQ-mod mount...
1 year 1 month ago #90926

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Replied by Alex on topic Guiding - Calibration failing

Hi Wolfgang,

is your suggestion to compare my logs with a log from an other EQ mount ? I could ask someone with an EQ6-R mount to generate logs and send them to me. What do you think ?
1 year 1 month ago #90935

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