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Problems with the internal guide

3 months 1 week ago
Frank
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Problems with the internal guide #61782
Hi guys, I am just wandering if I am missing some steps to configure the guide in Ekos…

My Kstars/Ekos installation is on Mac OS 10.14.6 and I use a ZWO ASI 1600 imaging camera and ASI 120 MC-S as guiding camera. 
The guiding camera is powered via the imaging camera through an USB cable. The mount is directly connected to my Mac via EqMod cable opportunely configured in Ekos. Just to be sure that everything is ok I attach a screenshot showing the configuration of my devices in Ekos with the opportune drivers. 
I had several problems in the guide. The problem I experienced are the following:

1 - During the guiding process, the modality of acquisition of the guide camera automatically switches from 16 bit to 8 bit. I obtain the following message that report this problem:

2020-10-16T20:57:30: [INFO] Switching to 8-bit video.


2 - I am not able to guide precisely. I initially obtain a drift plot that is almost stable (residuals around 1.5 arcsec) for few minutes. After some minutes, however, the plot starts to be highly unstable with drifts of also 10 arcsec. Unfortunately I have not an image to show you for this case…

I checked several times the balance of my equipment, then I would exclude this kind of problems.

Just a little note (I don’t know if this could contribute in part to these problems)…
All my USB outputs cables (that of the imaging camera, Eqmod, focuser.. ) are connected to an USB 3.0 HUB, that is powered directly from my external battery and connected to my Mac with an USB 3.0 cable. 

How can I solve these problems? 
I thank you very much for your suggestion and comments. 
Regards, 

Frank


Celestron C8 SCT
ZWO ASI 1600MM Cooled imaging camera
Skywatcher HEQ-5 pro mount
ZWO EFW
Orion 80/400 guide refractor telescope
ASI 120MC-S guiding camera
ZWO LRGB filters
ZWO H-alpha (7nm), SII (7nm), OIII(7nm) narrow band filters

Image Gallery: www.astrobin.com/users/Franck/
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3 months 1 week ago 3 months 1 week ago by wvreeven.
wvreeven
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Problems with the internal guide #61784
1. Why is switching to 8-bit a problem? IIRC this is done automatically for all ASI120 cameras. It does for mine and I get guide RMS well below 1” on my EQMod and iOptron mounts.
2. Can you post debug logs for further inspection of what maybe going on?

Wouter van Reeven

ASI6200 and 7 slot 2" filter wheel with a SkyWatcher Esprit 80 ED on a SkyWatcher HEQ5-Pro
ASI1600MM-Pro Cooled and 5 slot 1.25" filter wheel with an 8" TS Ritchey-Chrétien on a SkyWatcher EQ6-R

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3 months 1 week ago
xsnrg
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Problems with the internal guide #61805
I have found not setting the guider camera, when both cameras are ZWO, to be best. The driver is wise, and still recognizes both cameras and lets you set one as the guide camera in the guider configuration. Just leave the Guider: entry blank in the Profile Editor.

Jim

12" pier with HDX110 using EQMod
ASI 1600 mono/color mains with ASI290MM in off-axis
ASI filter wheel
Moonlite focusers for the sharpening
AT115EDT w/.8x for the light
Fedora Linux, 100% INDI

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3 months 6 days ago
Frank
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Problems with the internal guide #61900
Hi wvreeven!
Thank you for your reply.

1. To be honest the reason because I am worried about the switch from 16 to 8 bit is due to the fact that the FOV of the guiding camera suddenly becomes dark with little white stars. In few words I see a considerably contrasted image as a consequence of the change of the read-out dynamics. Is it a way to performa a stretch in the preview enclosed into the guide module?

2. How can I obtain the debug logs? Is there a way to recover the log of the last session I performed?

Thank you again.


Celestron C8 SCT
ZWO ASI 1600MM Cooled imaging camera
Skywatcher HEQ-5 pro mount
ZWO EFW
Orion 80/400 guide refractor telescope
ASI 120MC-S guiding camera
ZWO LRGB filters
ZWO H-alpha (7nm), SII (7nm), OIII(7nm) narrow band filters

Image Gallery: www.astrobin.com/users/Franck/

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3 months 6 days ago
Frank
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Problems with the internal guide #61904
Hi Jim, thank you for your reply!

I did not know this method. I have to absolutely try this.
I think this solution could solve some issues I experienced on loading the equipment on Ekos.
Indeed, sometimes I am not able to connect all the devices when I start Ekos. Several times I had to restart my Mac before loading all the devices in a row when I start the Ekos module.
Have you ever experienced this problem?

Thank you again,

F.


Celestron C8 SCT
ZWO ASI 1600MM Cooled imaging camera
Skywatcher HEQ-5 pro mount
ZWO EFW
Orion 80/400 guide refractor telescope
ASI 120MC-S guiding camera
ZWO LRGB filters
ZWO H-alpha (7nm), SII (7nm), OIII(7nm) narrow band filters

Image Gallery: www.astrobin.com/users/Franck/

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3 months 6 days ago
wvreeven
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Problems with the internal guide #61908
Frank,

If you look in Individuals -> Error Reporting in the menu items at the top then you’ll coma across this page

indilib.org/individuals/logs-howto.html

As far as I know, the images are stretched when in 8 bit. Once more, that works fine for me.


Wouter

Wouter van Reeven

ASI6200 and 7 slot 2" filter wheel with a SkyWatcher Esprit 80 ED on a SkyWatcher HEQ5-Pro
ASI1600MM-Pro Cooled and 5 slot 1.25" filter wheel with an 8" TS Ritchey-Chrétien on a SkyWatcher EQ6-R

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3 months 5 days ago
Frank
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Problems with the internal guide #61922
Ok, great! Thank you for the link.
Accordingly to the local weather I am going to produce one asap to post it here :-)

Thank you again for your support!

F.


Celestron C8 SCT
ZWO ASI 1600MM Cooled imaging camera
Skywatcher HEQ-5 pro mount
ZWO EFW
Orion 80/400 guide refractor telescope
ASI 120MC-S guiding camera
ZWO LRGB filters
ZWO H-alpha (7nm), SII (7nm), OIII(7nm) narrow band filters

Image Gallery: www.astrobin.com/users/Franck/

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