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INDI Library v1.9.7 Released (29 Jul 2022)

Bi-monthly INDI Library released with new drivers and bug fixes.

"Mount aborted" when trying to run Polar Alignment Assistant (again)

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Dear all,

I've an issue during the Polar Alignement process, just after the first image has been taken and plate-solved, when the mount rotates to take the second picture. The process stops there, and I got a message telling me:
Mount aborted. Please restart the process and reduce the speed.

I've seen similar issues in the forum (at least two), but the solutions provided do not work for me.

The problem first occurred two weeks ago, with a RPI4 running Astroberry, that was last updated in nov. 2021 (so I did not touch anything from the software side, nor on the hardware side). KStars was in version 3.5.6 and Indi in version 1.9.4. I tried to update to the latest version (KStars 3.5.8 and Indi 1.9.5) but the problem was still there. I decided to reinstall Astroberry and update it after a fresh install (KStars 3.5.8 and Indi 1.9.5). Nothing changed.

I decided to save the log to try to understand what was going on (see the file in attachement). Apparently, the mount (Celestron CGX) is not going in the right direction as the remaining degree of rotation is increasing...
[2022-05-26T11:22:22.024 CEST INFO ][     org.kde.kstars.ekos.align] - "WCS information updated. Images captured from this point forward shall have valid WCS."
[2022-05-26T11:22:22.027 CEST INFO ][     org.kde.kstars.ekos.align] - "Solution coordinates: RA (15h 13m 20s) DEC ( 88° 35' 47\") Telescope Coordinates: RA (15h 13m 00s) DEC ( 88° 35' 37\")"
[2022-05-26T11:22:22.046 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] CMD <e> "
[2022-05-26T11:22:22.135 CEST INFO ][           org.kde.kstars.indi] - Guide Simulator :  "[INFO] Saving device configuration... "
[2022-05-26T11:22:22.137 CEST INFO ][           org.kde.kstars.indi] - Guide Simulator :  "[INFO] Device configuration saved. "
[2022-05-26T11:22:22.137 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] RES <A250B200,3F000C00#> "
[2022-05-26T11:22:22.138 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[SCOPE] RA-DEC (15:13:01,88:35:38) "
[2022-05-26T11:22:22.138 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] CMD <p> "
[2022-05-26T11:22:22.140 CEST INFO ][           org.kde.kstars.indi] - Guide Simulator :  "[INFO] CCD FOV rotation updated to 89.9943 degrees. "
[2022-05-26T11:22:22.141 CEST INFO ][     org.kde.kstars.ekos.align] - "WCS data processing is complete."
[2022-05-26T11:22:22.144 CEST DEBG ][     org.kde.kstars.ekos.align] - "PAA: addPoint ra0 231.751 dec0 88.6751 ra 228.334 dec 88.5964 az 359.02 alt 47.1603"
[2022-05-26T11:22:22.156 CEST INFO ][     org.kde.kstars.ekos.align] - "Please wait until mount completes rotating to RA (14h 13m 00s) DE ( 88° 35' 37\")"
[2022-05-26T11:22:22.159 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] RES <E#> "
[2022-05-26T11:22:22.159 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] latitude 48.3997, sop E, PierSide W "
[2022-05-26T11:22:22.160 CEST DEBG ][     org.kde.kstars.ekos.align] - First mount rotation remaining degrees: 15
[2022-05-26T11:22:22.256 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] CMD <50 02 10 24 08 00 00 00> "
[2022-05-26T11:22:22.256 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] RES <23> "
[2022-05-26T11:22:22.258 CEST INFO ][           org.kde.kstars.indi] - Celestron CGX :  "[INFO] Moving toward West. "
[2022-05-26T11:22:22.302 CEST DEBG ][     org.kde.kstars.ekos.mount] - Mount status changed from  "Tracking"  to  "Moving W"
[2022-05-26T11:22:23.061 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] CMD <e> "
[2022-05-26T11:22:23.128 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] RES <A2D9A500,3F062700#> "
[2022-05-26T11:22:23.129 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[SCOPE] RA-DEC (15:16:02,88:37:39) "
[2022-05-26T11:22:23.129 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] CMD <p> "
[2022-05-26T11:22:23.186 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] RES <E#> "
[2022-05-26T11:22:23.186 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] latitude 48.3997, sop E, PierSide W "
[2022-05-26T11:22:23.186 CEST DEBG ][     org.kde.kstars.ekos.align] - First mount rotation remaining degrees: 15.0074
[2022-05-26T11:22:24.152 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] CMD <e> "
[2022-05-26T11:22:24.220 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] RES <A4014300,3F118C00#> "
[2022-05-26T11:22:24.220 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[SCOPE] RA-DEC (15:22:32,88:41:24) "
[2022-05-26T11:22:24.220 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] CMD <p> "
[2022-05-26T11:22:24.243 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] RES <E#> "
[2022-05-26T11:22:24.243 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] latitude 48.3997, sop E, PierSide W "
[2022-05-26T11:22:24.243 CEST DEBG ][     org.kde.kstars.ekos.align] - First mount rotation remaining degrees: 15.7597
[2022-05-26T11:22:25.249 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] CMD <e> "
[2022-05-26T11:22:25.311 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] RES <A5593600,3F1C5F00#> "
[2022-05-26T11:22:25.311 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[SCOPE] RA-DEC (15:30:05,88:44:59) "
[2022-05-26T11:22:25.311 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] CMD <p> "
[2022-05-26T11:22:25.334 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] RES <E#> "
[2022-05-26T11:22:25.334 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] latitude 48.3997, sop E, PierSide W "
[2022-05-26T11:22:25.335 CEST DEBG ][     org.kde.kstars.ekos.align] - First mount rotation remaining degrees: 17.3836
[2022-05-26T11:22:26.335 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] CMD <e> "
[2022-05-26T11:22:26.446 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] RES <A6E60A00,3F26C000#> "
[2022-05-26T11:22:26.447 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[SCOPE] RA-DEC (15:38:48,88:48:24) "
[2022-05-26T11:22:26.448 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] CMD <p> "
[2022-05-26T11:22:26.449 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] RES <E#> "
[2022-05-26T11:22:26.450 CEST DEBG ][           org.kde.kstars.indi] - Celestron CGX : "[DEBUG] latitude 48.3997, sop E, PierSide W "
[2022-05-26T11:22:26.451 CEST DEBG ][     org.kde.kstars.ekos.align] - First mount rotation remaining degrees: 19.273
[2022-05-26T11:22:26.451 CEST DEBG ][           org.kde.kstars.indi] - ISD:Telescope: Aborted. 
 
[2022-05-26T11:22:26.452 CEST INFO ][     org.kde.kstars.ekos.align] - "Mount aborted. Please restart the process and reduce the speed."
[2022-05-26T11:22:26.455 CEST INFO ][     org.kde.kstars.ekos.align] - Stopping Polar Alignment Assistant process...
[2022-05-26T11:22:26.456 CEST DEBG ][           org.kde.kstars.indi] - ISD:Telescope: Aborted.

Before, the system was working perfectly fine and it was a real pleasure to use it.

Any idea ?

Vincent
2 months 1 week ago #83142
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Hi Vincent,
You might have got this error probably for two reasons:
1- The rotation speed is too high. Try 5 or 6. (I got problem with speed 7 or higher)
2- The first image was not solved properly. The scope needs to be pointed around the NCP.
See the video by Jasem : Ekos Polar Alignment Assistant Tool (
)
–––––– >>>> Here is a summary of what Jasem said : engage tracking, double-clic on a star near the NCP, slew to it and solve it (Capture and Solve), then start the polar alignment procedure
The following user(s) said Thank You: Vincent LE SAUX
3 weeks 1 day ago #84430

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Hi Jean-Claude,

I checked (again) the video you suggested. It seemed that I forgot to "Capture and Solve" before starting the Polar Alignement tool. I tried several times with the procedure you mentioned, and every time the assistant worked perfectly (even at speed x9, and by pointing at any star, possible since a "recent" update of kstars/ekos).

Thank you very much for this reminder. This is typically the thing that happen when you do not write somewhere the exact procedure and try to do things based on your (defective) memory. It will not happen again!

Anyway, thanks for you time and detailed answer, I really appreciate!

Vincent
1 week 2 days ago #84793

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Jean-Claude, Vincent:

FWIW, that video is several iterations old--though following those instructions probably still work, polar-alignment no longer requires the telescope to point near the pole.

Here's a more recent video


And here's an even more recent forum update:
indilib.org/forum/general/11816-announci...changes.html?start=0

Hy
AP1100 & Orion Atlas Pro, WO/ZS105 w/Moonlight V2 focus, GSO RC10 w/RSF focus
ZWO ASI1600, Astronomik Filters, ST80, QHY 5L-IIm.
KStars/Ekos/Indi on NUC10 & RPi4 w/SSD -- Ubuntu
Projects: Greedy Scheduler, Terrain, Polar Align, Analyze, Linear Focuser, SEP MultiStar & GPG Guide, FITS autostretch.
The following user(s) said Thank You: Jean-Claude JESIOR, Vincent LE SAUX
1 week 2 days ago #84794

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Hy,

I 'm really impatient to download the coming KStars 3.6.0 !
indilib.org/forum/general/11816-announci...changes.html?start=0

Because of the "PlateSolve" method, I suppose that Polar Alignment is no more limited to a minimum field of view of 30 arc minutes .

Thank-you Hy for your commitment in making an always improved KStars.
1 week 2 days ago #84797

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Hi,

Looking forward to playing with this new release!

Thanks for the new video and the updates.
1 week 2 days ago #84801

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