Peter Kennett replied to the topic 'Guiding settings' in the forum. 1 month ago

Thanks Jasem.

In your Stellarmate documentation you state "You can alter the Proportional and Integral gains to improve the guiding performance if necessary.".
The problem is that I have no idea how to determine when an adjustment would help, nor what settings to change o5 what changes to make.
Is a gain of 0.5 good, or 2.5? How about 300? The numbers are arbitrary until I learn what it really does and how I can spot when changing these settings may help.
Is the left set of numbers for RA and the right side for DEC? I found no documentation that describes that.

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Peter Kennett created a new topic ' Guiding settings' in the forum. 1 month ago

Does anyone have any documentation or tips for adjusting these various settings in the Guide module?

Guide Box size - what size is best? What is the default?

Control parameters: How do I determine what settings to use, and when do I change them? What are the default values?
- Proportional (do I just set this according to the P: setting located after the Guide Rate?)
- Integral Gain (What is the default, when should I adjust, is the left setting for RA and the right for DEC?)
- Max and Min pulse. What are the keys to determine what these settings should be? What are the DEFAULT settings?

- Calibrait plat (new feature). What is the purpose and how do I read it?

Thanks!

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Peter Kennett replied to the topic 'Latest Nightly fails at guiding after flip' in the forum. 1 month ago

PS: This was running on Ubuntu 18.04.

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Peter Kennett created a new topic ' Latest Nightly fails at guiding after flip' in the forum. 1 month ago

I have been using the stable release for about five months now without any major issues, and the automated meridian flip was flawless. It was great to wake up and find everything went well during the night.

But yesterday I downloaded the latest nightly and discovered that after s flip, the guided wouldn’t recalibrate correctly. It failed to reverse the direction and so couldn’t calibrate at all and so the imaging session was halted. I caught this one hour before twilight so I was able to fix it and get one more hour of work. I simply clicked on the swap option and EKOS was able calibrate again.

This never happened in the stable release. Is there a new option somewhere that I have to adjust?

Also the guider now has a calibration graph. Does this have a purpose and if so, how do I read it and use that info?

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Peter Kennett created a new topic ' Strange result during Polar Alignment' in the forum. 3 months ago

I have been using the Polar Alignment tool for months without any problem.
But tonight, something strange happened. I am using the same version of KSTARS over the last month, and had no problems until tonight - even though I have not updated KSTARS recently.
I started the Polar Alignment routine, and it came back and told me I was off by a couple of minutes. Nothing unusual there.
But the SCREEN was showing me being WAY off - almost out of range of the tool. I selected a star as usual, and the amount I needed to adjust was appropriate.
I did this three times, getting closer to perfectly aligned each time, but the screen was not zeroing me in. Very odd.



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Peter Kennett replied to the topic 'Summary screen doesn't show captures' in the forum. 3 months ago

Only works for me on my MAC when I have images also saved on my Mac. If I keep them on the Ubuntu box at the scope, then I will not see them in the Summary Screen.

Peter

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Peter Kennett replied to the topic 'Off-Centered - While Dithering' in the forum. 3 months ago

I wonder if this is a problem with polar alignment. I have been making sure my PA has been within a few Arc Seconds and noticed my drift virtually went away.
Last night I let my system run for 4 hours, taking images every minute and dithering every 4 frames. Four hours later the target was no more than a minute off.

Peter

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Peter Kennett replied to the topic 'Guiding failed after meridian flip' in the forum. 3 months ago

Yes! This is what I have seen over and over. It seems to work well the first time auto-star is used, but then after that it usually fails after I move two a new field.
This happens of course after a meridian flip, but also happens when I just slew to a new target field.
The guide star box seems locks on to the same area from the previous search, even when that area is now devoid of stars. It should have searched the whole field again, but it doesn't.
The meridian Flip video I made was one success after three previous fails. It's random if the guider will find a new guide star, even when there are tons of stars. That little green box just doesn't seem to look in new areas after the first time.

Peter

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Peter Kennett replied to the topic 'Re-alignment in Scheduler - is it possible?' in the forum. 3 months ago

I've noticed this for the last two years. It used to be worse, where I needed to re-align after 20 or 30 frames.
Now I still need two after 60-80 frames. The drift is certainly there (with as low as 2 pixel dithering every 4 exposures).
I currently use a wide FOV (348mm F/L) but I know once I jump to a narrow FOV this will be a serious issue.

Peter

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Peter Kennett replied to the topic 'Guiding failed after meridian flip' in the forum. 3 months ago

No Mac vs Windows fight. I use both.
I just don't use Windows on my own time in my house.

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Peter Kennett replied to the topic 'Guiding failed after meridian flip' in the forum. 3 months ago

I’m in a similar frustration boat, in that every new update breaks something else that worked before.

But I hate using MS Windows and while I put up with it at work, won’t have it in my house. The Mac OSX version works better than the Linux version so once I finish my observatory I will bypass the Linux machine I use as a bridge and direct connect a Mac to my equipment. My new mount (CEM120 EC2) will make that easy with its built in USB ports right at the dovetail plate.

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Peter Kennett created a new topic ' A simple bug to fix - Configure Winder does not pop to the front' in the forum. 3 months ago

In the Linux version of EKOS, when I click on "Options" from the CDD window, the CONFIGURE window does not open to the front, but instead it stays behind the EKOS window.
This is not a problem with the MacOSX version, but has always been a problem with the Linux version on my Ubuntu OS machine.

Peter

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Peter Kennett replied to the topic 'Guiding failed after meridian flip' in the forum. 3 months ago

This is what is strange, because last night mine was successful again.
Ever since I made sure the "solve and slew" button was set, and that I turned off "Subframe" in the guider, my success rate went way up.

Peter

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