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14 Nov 2018
Glad to announce of release of INDI Library v1.7.5 on 2018-11-14. A few drivers were added in this release as we continue to improve & stabilize existing drivers.
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TOPIC: [SOLVED] Calibration problem

Calibration problem 6 months 3 days ago #26555

Hi,

This probably might not help your situation but I found a similar error and the workaround is not the most ideal.

I can a Celestron CGE mount which is different from yours. But it maybe a common issue with Celestron mounts internal circuitry or perhaps the driver. I park my mount at the end of the session and on restart unpark it. It finds objects well and plate solves no problem. When I go to guide I get the same calibration timeout error, and changing settings returns the same. Even using a different guidescope and camera (I had a setup a second guidescope and camera because this frustrated me so much) it returns a calibration error.

The work-around I have developed now is as follows:
1. Unpark mount at start of session,
2. Plate solve for three different locations,
3. Slew to Polaris and complete polar align routine (just to check because I have a roll-away shed observatory),
4. Slew to target, frame and focus,
5. Start auto-guiding (obviously it fails at this point)
6. Disconnect all devices and shutdown drivers
7. Factory reset mount using Nexstar hand-controller, at which point is asks me to recycle power which I do by turning mount off and then on. This slews CGE mount to home position as it finds switch positions.
8. Slew to target and plate solve (since I did polar-align routine its bang on)
9. Start Autoguide (this time the calibration routine successfully completes and i'm off guiding)
10. Start captures.

It's a little annoying and I'm not sure having to do a factory reset every session harms my mount but this seems to be the only way i can get autoguiding calibration to work.

My suspicions are that the mount somehow doesn't receive pulse-guide commands unless I do a factory-reset. I'm not knowledagble on the internals of the CGE so any answers to this would be helpful. Especially one that doesn't require me to do factory reset.

Many thanks,
Will.
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Calibration problem 6 months 3 days ago #26556

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Thanks for reply AstroWill :)
In this day is not possible test ( clouds )
When possible test and report.
Very very thanks.

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Celestron C8 Fastar XLT U.S.A. (Carbon tube), seeker 9x50 (used as a guide scope), Wedge, Meade DSI (used as a guide cam), Canon EOS 500D Full mod, Canon EOS 1000D, RaspBerryPI3 with remote management through EKOS.

Calibration problem 6 months 2 days ago #26557

Why would the pulse guiding requires a mount reset? Something else is at play here... could be mount guide rate? what is it set to?

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Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
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Calibration problem 6 months 2 days ago #26561

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AstroWill wrote: Hi,
..
. I park my mount at the end of the session and on restart unpark it.
...


Ops probably you found my problem, It all started for about a month and precisely since I started to send the telescope in the parking :(

Next day, weather permitting, i test one Factory reset. Thanks.

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Celestron C8 Fastar XLT U.S.A. (Carbon tube), seeker 9x50 (used as a guide scope), Wedge, Meade DSI (used as a guide cam), Canon EOS 500D Full mod, Canon EOS 1000D, RaspBerryPI3 with remote management through EKOS.

Calibration problem 6 months 2 days ago #26563

Hi,

Guide rate is set to 0.5x. I use all default settings as they come in Kstars.

I am currently using a QHY5L-ii-c (colour version) guide-cam, auto-star selection with box size 16 when guiding (box size 32 during calibration), 2x2 binning and auto-contrast. Guiding is around 0.89" to 1.21" rms when stable. It's just the calibration at the beginning that I have to perform the factory reset on the mount for.

On my last session, these settings guided through clouds without losing guiding and the auto-star selection works a treat when a clouds were lingering on my chosen guide star.

I can't forget to say thanks to all the devs and everyone who has put in effort into INDI and KStars because it is astro-awesomeness. It has spurred me to learn a lot and over the summer when the nights are short i'll be implementing Arduinos for robotic focussing, dew heaters and flat-caps etc.

:-D

Many thanks,
Will.

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Calibration problem 6 months 2 days ago #26565

Still, I'd like to know why the factory reset is necessary? Is it hibernation issue?

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Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
How to Submit Logs when you have problems?
Add your observatory info

Calibration problem 6 months 2 days ago #26567

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knro wrote: Still, I'd like to know why the factory reset is necessary? Is it hibernation issue?


Probably, lately I played also with hibernation :) ..in next day test all situation. Thanks.

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Celestron C8 Fastar XLT U.S.A. (Carbon tube), seeker 9x50 (used as a guide scope), Wedge, Meade DSI (used as a guide cam), Canon EOS 500D Full mod, Canon EOS 1000D, RaspBerryPI3 with remote management through EKOS.

Calibration problem 6 months 2 days ago #26568

Jasem,

How can i diagnose whether it's a hibernation issue? As in, what steps can i take to verify?

Best wishes,
Will.

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Calibration problem 6 months 1 day ago #26578

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Ok now I have tested your system ..not work same error "...Possible mount or backlash problems." and "...JAM Mount"

At this point go in Indi Settings -> Celestron GPS
and in connection tab i see option "Use Pulse cmd" is On

stop calibration
set Off this option
restart calibration

..good, calibrate ok and fast :)

@knro add log of this sequence.

Now have retest, work ok :)

When I have add On "Use pulse cmd" ? ..not have idea!!
Is possible Park changed itself this option?

Thanks all.


At line 708 of the log. It is visible where I changed the option and restarted the calibration.
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Celestron C8 Fastar XLT U.S.A. (Carbon tube), seeker 9x50 (used as a guide scope), Wedge, Meade DSI (used as a guide cam), Canon EOS 500D Full mod, Canon EOS 1000D, RaspBerryPI3 with remote management through EKOS.
Last Edit: by pcxz. Reason: info

Calibration problem 6 months 23 hours ago #26606

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I test also now, with option "Use pulse cmd" On ..fail calibration
with option Off ..work ok.
For me is solved.
Thanks at all.
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Celestron C8 Fastar XLT U.S.A. (Carbon tube), seeker 9x50 (used as a guide scope), Wedge, Meade DSI (used as a guide cam), Canon EOS 500D Full mod, Canon EOS 1000D, RaspBerryPI3 with remote management through EKOS.

[SOLVED] Calibration problem 6 months 8 hours ago #26610

I found there is a bug in the celestron driver affecting the pulse guiding commands!
I made a pull request to the main INDI repository a few minutes ago. It should be fixed in the next release.
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[SOLVED] Calibration problem 5 months 4 weeks ago #26619

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juanmb wrote: I found there is a bug in the celestron driver affecting the pulse guiding commands!
I made a pull request to the main INDI repository a few minutes ago. It should be fixed in the next release.


Hi juanmb, i update with your change and test.
Same problem ..see log
If set Off calibrate ok.
Thanks bye
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Celestron C8 Fastar XLT U.S.A. (Carbon tube), seeker 9x50 (used as a guide scope), Wedge, Meade DSI (used as a guide cam), Canon EOS 500D Full mod, Canon EOS 1000D, RaspBerryPI3 with remote management through EKOS.
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