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INDI Library v1.8.5 Released (19 Apr 2020)

April 2020 release of INDI Library v1.8.5 introduces new drivers while providing fixes and improvements to existing devices and core framework.

Alignment / Sync failed Astroberry 2.0.2

1 month 1 day ago
Dirk Tetzlaff
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Alignment / Sync failed Astroberry 2.0.2 #56801
I am unsure, whether my problem is being covered by the thread "align does not converge on target", but my scope (EQmod) is not slewing to the target coordinates after succesful plate solving (Target and Solution coordinates are being correctly posted, but the differential slew executed does not match the deltas). The ekos alignment routine than just takes the same picture again and again, even though the target is off by more than 1 degree. Am I missing something here ?
Setup: astroberry 2.0.2 on Pi4, offline solver, AZEQ-6 with EQmod, Canon DSLR, SC11
I have included the log below. The solver took some time, but I understand I have to increase downsampling to speed things up, because more than 1.000 sources had been identified in the captured frame and occupy quite some resources. Can anybody give me advise how to achieve succesful alignment, please ? I am quite new to this stuff.
Many thanks and kind regards

Dirk

[2020-07-13T00:07:50.894 CEST INFO ][ org.kde.kstars.ekos.align] - "Solver completed in 123 seconds."
[2020-07-13T00:07:50.943 CEST INFO ][ org.kde.kstars.ekos.align] - "Solver RA (298.64000) DEC (7.89127) Orientation (157.00509) Pixel Scale (0.35754)"
[2020-07-13T00:07:51.150 CEST INFO ][ org.kde.kstars.ekos.align] - "Solution coordinates: RA (19h 55m 32s) DEC ( 07° 56' 40\") Telescope Coordinates: RA (19h 51m 38s) DEC ( 08° 55' 14\")"
[2020-07-13T00:07:51.199 CEST INFO ][ org.kde.kstars.ekos.align] - "Target is within 01° 22' 56\" degrees of solution coordinates."
[2020-07-13T00:07:51.282 CEST INFO ][ org.kde.kstars.ekos.align] - "Syncing to RA (19h 55m 32s) DEC ( 07° 56' 40\")"
[2020-07-13T00:07:51.344 CEST INFO ][ org.kde.kstars.indi] - Canon DSLR EOS 40D (PTP mode) : "[INFO] CCD FOV rotation updated to 157.005 degrees. "
[2020-07-13T00:07:51.351 CEST INFO ][ org.kde.kstars.indi] - EQMod Mount : "[INFO] Align Pointset: added point 3 alt = 39.8562 az = 146.144 "
[2020-07-13T00:07:51.356 CEST INFO ][ org.kde.kstars.indi] - EQMod Mount : "[INFO] Align Triangulate: number of faces is 2 "
[2020-07-13T00:07:51.361 CEST INFO ][ org.kde.kstars.indi] - EQMod Mount : "[INFO] Align Sync: point added: lst=18.21987280 celestial RA 19.92570000 DEC 7.94455000 Telescope RA 19.86056291 DEC 8.92082031 "
[2020-07-13T00:07:51.369 CEST INFO ][ org.kde.kstars.ekos.align] - "Slewing to target coordinates: RA (19h 51m 37s) DEC ( 08° 55' 14\")."
[2020-07-13T00:07:51.553 CEST INFO ][ org.kde.kstars.indi] - EQMod Mount : "[INFO] Starting Goto RA=19.8605 DE=8.92082 (current RA=19.8606 DE=8.92082) "
[2020-07-13T00:07:51.558 CEST INFO ][ org.kde.kstars.indi] - EQMod Mount : "[INFO] Aligned Eqmod Goto RA=19.8605 DE=8.92082 (target RA=19.8605 DE=8.92082) "
[2020-07-13T00:07:51.563 CEST INFO ][ org.kde.kstars.indi] - EQMod Mount : "[INFO] Setting Eqmod Goto RA=19.8605 DE=8.92082 (target RA=19.8605 DE=8.92082) "
[2020-07-13T00:07:51.569 CEST INFO ][ org.kde.kstars.indi] - EQMod Mount : "[INFO] Slewing mount: RA increment = 128, DE increment = 0 "
[2020-07-13T00:07:51.574 CEST INFO ][ org.kde.kstars.indi] - EQMod Mount : "[INFO] Slewing to RA: 19:51:38 - DEC: 8:55:15 "
[2020-07-13T00:07:51.695 CEST INFO ][ org.kde.kstars.ekos.guide] - "Mount is moving. Resetting calibration..."
[2020-07-13T00:07:51.749 CEST INFO ][ org.kde.kstars.ekos.guide] - "Calibration is cleared."
[2020-07-13T00:07:52.496 CEST INFO ][ org.kde.kstars.indi] - EQMod Mount : "[INFO] Iterative Goto (1): RA diff = 0.06 arcsecs DE diff = 0.00 arcsecs "
[2020-07-13T00:07:52.502 CEST INFO ][ org.kde.kstars.indi] - EQMod Mount : "[INFO] Telescope slew is complete. Tracking TRACK_SIDEREAL... "
[2020-07-13T00:07:52.511 CEST INFO ][ org.kde.kstars.ekos.align] - "Slew complete. Target accuracy is not met, running solver again..."

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1 month 22 hours ago
AxelM
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Alignment / Sync failed Astroberry 2.0.2 #56838
I wonder if you are experiencing the same issue reported here and here . Do you know which KStars / INDI version Astroberry 2.0.2 uses? I fixed my problem by compiling the KStars code from GitHub (commit 446481d5fb485ec6437c43bb6bcc1c5b76adedfd).

Axel

Ubuntu 20.04 on Raspberry Pi 4 (4 GB)
Vixen R200SS 8" f/4
EQ6-R Pro
ASI 1600MM Pro + EFW, Canon 6D

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1 month 19 hours ago
Dirk Tetzlaff
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Alignment / Sync failed Astroberry 2.0.2 #56855
Axel,
thanks for your answer.
KStars is version 3.4.2, build 2020-04-13T21:01:23Z
libindi is 1.8.5 from 07-03-2020

Can you pls. give advice how to compile myself on astroberry ?

Many thanks
Dirk

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1 month 18 hours ago
Dirk Tetzlaff
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Alignment / Sync failed Astroberry 2.0.2 #56856
just one more addition, since I am a linux dummy. I looked into my installed packages with "apt list --installed" and I have "kstars-bleeding" installed, actually. Don´t know, whether this makes any difference. I just took the latest image for astroberry and updated it with the apt-update / upgrade commands.

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1 month 17 hours ago
AxelM
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Alignment / Sync failed Astroberry 2.0.2 #56863
Interesting. Your version seems to be similar to the one from the stable release , which (at least for me) did not have any alignment issues. (It did have an autofocus issue , which is why I switched to a more recent version).

I compiled KStars using the instructions on GitHub . If you change the install prefix in the cmake command from
cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=RelWithDebInfo ../kstars
to
cmake -DCMAKE_INSTALL_PREFIX=/usr/local -DCMAKE_BUILD_TYPE=RelWithDebInfo ../kstars
you should be able to have the new KStars version side by side with the one from Astroberry.

Axel

Ubuntu 20.04 on Raspberry Pi 4 (4 GB)
Vixen R200SS 8" f/4
EQ6-R Pro
ASI 1600MM Pro + EFW, Canon 6D

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1 month 14 hours ago
Dirk Tetzlaff
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Alignment / Sync failed Astroberry 2.0.2 #56875
Axel,
your help is highly appreciated. I am currently building KStars based on your instructions. This does mean, that I just downloaded the default / current version of kstars, which comes with the "git clone" command. Hope I got the right version...
I will give it a try as soon as seeing conditions permit. Will keep you posted.
Cheers
Dirk

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3 weeks 3 days ago
Dirk Tetzlaff
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Alignment / Sync failed Astroberry 2.0.2 #57105
Axel,
just to confirm: the compiling of the current github version did the trick for me. Many thanks, again !

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