Jose Corazon replied to the topic 'ALARM!!!' in the forum. 8 hours 23 minutes ago

gbeaton wrote: Thanks @jpaana !

I would suggest to the developers that this kind of notification be turned on by default.


Funny, in my system many of these notifications were indeed already turned on by default and to avoid them hopelessly spamming my logs I ended up turning them all off, wishing that they had been turned off from the get-go.

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Jose Corazon replied to the topic 'Internal Guider - Adjustment parameters' in the forum. 8 hours 33 minutes ago

Excellent, thanks Jasem. That helps a lot with understanding how the guide pulses are calculated. We had pretty much correctly deduced from mount behavior how the proportional gain is calculated. From the definition of the integral gain it looks like the most appropriate course of action is to leave it set to 0 for mounts that have already undergone permanent periodic error correction or that fluctuate around 0. By contrast, for mounts with a largely constant inherent tracking error (either + or -) integral gain would be a very useful parameter to play with. My iOptron SmartEQ has that problem so I will change the integral gain settings when using that one.
We'll experiment with the settings based on these algorithms and post our experience, if useful.
As for syncing the Ekos documentation with the StellarMate pages: Looks to me like Ekos covers most of what is described on the Stellarmate pages minus a few details that you just filled in, at least as far as the guide module description is concerned. I would suggest to simply include the appropriate stellarmate links on the Ekos documentation pages at the bottom with the note that 'Additional information may be available at http://stellarmate......"
Also, thanks for pointing out the debug logging.
Jo

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Jose Corazon created a new topic ' Internal Guider - Adjustment parameters' in the forum. 2 days ago

wvreeven and I have communicated offline trying to figure out how to optimize the settings for the internal guider. We have not been able to glean all the necessary information from the description pages of the guide module: indilib.org/about/ekos/guide-module.html

We think that 'Proportional gain' is equivalent to 'Aggressiveness' in PhD2, but we are not certain about the effects of adjusting 'Integral gain'. Or are they equivalent to 'predictive gain' and 'reactive gain'.

openphdguiding.org/PHD2_User_Guide.pdf

Currently, our guiding accuracy in RA using the internal guider hovers between 1.3" and 2.5", we would love to make that more consistent and better.

It would be great to know if there are any detailed descriptions of the algorithm these parameters feed into, that would save us from reinventing the wheel by trial and error.

Anyone who has experience with adjusting these parameters and what they mean?

Thanks, J&W

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Jose Corazon replied to the topic 'Scheduler-mosaic; invalid second job due to time' in the forum. 6 days ago

I have the same problem. The scheduler and I interpret ASAP differently. I frequently have the problem that the second job in the sequence is declared 'Invalid' after the first one is finished, due to past start-up time. That should not be the case, setting the start-up time to ASAP should override this, shouldn't it? The only way to get to the second job is then to select it, click the (wrong) initial startup time, then change it back to ASAP immediately and then restart the queue. Don't forget to unpark the mount first, though, otherwise you have to do it all over again.

What am I doing wrong? Or does this require a change in the code?

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Jose Corazon thanked Pepe in topic Raspberry Pi 3 Setup Script 6 days ago
Jose Corazon replied to the topic 'Canon 6D and AstroPi3 setup, exposure abort problem' in the forum. 6 days ago

I am using a Nikon D3300 and somewhere in the instructions it says that saving to RAM will lead to hangups, so I always selected save to SD card. At the very worst, at the end of the night's session you just delete the images you don't want. As Vincent, I am running Ekos directly on the RPi3 and control it only through a VNC remote desktop (KRDC or RealVNC, depending which one you like better). I like saving the images to the SD card of the camera, it always provides me with a backup in case the saving to the Pictures folder on the Pi has a problem. Autofocus works great with the D3300, never had any issues with it.

Another thing I found is that the RPi3 is pretty much at the limit of its RAM when running Ekos on it. That occasionally led to hangups. To get over those, I added a cheap external hard drive (120GB, $20 at Amazon) and put a Swap file on it. With swappiness at the default of 60, I now don't run out of memory anymore and the system overall is more responsive. Putting the swap file directly on the SD card did not work well, I/O is too slow and over time the SD card will degrade from the frequent R/W cycles.

If you want to get around these problems entirely, put Ubuntu Mate, Indi and Ekos on a Zotac pi332 which has 4GB of RAM and a 32 GB eMMC. True, more expensive at $189, but much faster, too. In that case, just set the path to save your images on the external hard drive, or you can put an SD card also into the Zotac and save directly to that.

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Jose Corazon replied to the topic 'Change to Guide Module with recent update?' in the forum. 1 week ago

wvreeven wrote:

El Corazon wrote: Thanks, wvreeven. Exactly what I am seeing in all respects, except I don't need to shut down the mount to recover, just Ekos and KStars. However, I think I have found a way to make the guiding through the mount, using the internal guider, more consistent. Can you try playing with the proportional gain in the Control Parameter settings and set proportional gain for the RA axis to 200% and DEC axis to 100%. In my case, that brought the deviations down to <2" on an Atlas Pro, 70% of the time <1" with guide pulse lengths rarely exceeding 400 ms, 200-250 ms most of the time. If you can improve further, please let me know. But with those settings, it is quite workable at the focal lengths I am using (~800mm and at the abysmal seeing I had in my light polluted and smog-filled inner city area. In my case, I used 2" frames, not ideal, so I will change to 4" frames next time. I thought I had set the guider to 4" frames, but it reverted on its own without me noticing. Thanks for pointing that out.


I set the Proportional Gain as you indicated but to no avail as you can see in the screenshot. I'm not sure if my guide scope is focused well enough though. I ordered a new one with a better focuser so maybe that'll help.


wvreeven, I am very sorry, totally my fault! Those settings would make the deviations on your mount worse. I have two mounts, an Atlas Pro for my backyard and an iOptron SmartEQPro+ for traveling and grab and go. The values I gave you were for the SmartEQ, not for the Atlas. Even with those proportional gains, I can barely keep the guide errors within the 2" window on the SmartEQ. That mount has THE worst periodic error I can imagine!
For the Atlas Pro, I had to reduce the proportional gain - for guiding through the mount directly, not through the camera - from 133% to 100% with a guide rate of 0.5x sidereal. I.e. I reduced the amplitude of the corrections and thus the oscillations you and I have been seeing when guiding directly through the mount. With those gain values, guiding was good in my case. If you still see disproportional deflections, you may want to try to reduce the proportional gain further, I am not saying that I reached the optimal set point yet.
Hope that fixes the problem for you as well.
Best
Jo

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Jose Corazon replied to the topic 'Frustrated and Need Recommendation for Guider Imager' in the forum. 1 week ago

w0anm wrote: I want to thank everyone who replied. Seems like a common problem with this QHY5 devices. Further investigating, it looks like the ZWO ASI120MM-S (usb3) is the way to go. I like the Lodestar guider, but a little too much money and I would like to save up for the ASI1600MM cooled with filters (or something equivalent). I have been away from the hobby for quite some time. I actually built two Richard Berry's Cook Book Cameras back in day and used them for many years; it's amazing how far things have come.

Cheers,


With the ST4 and USB2 firmware update issues fixed, the ASI120MM (USB2 version) is a great deal right now. Highpoint Scientific is selling used ones for $89 at the moment. You won't need USB 3 for guiding.

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Jose Corazon replied to the topic 'Change to Guide Module with recent update?' in the forum. 1 week ago

knro wrote: *face palm*

I found the problem. It was indeed a commit I merged a while back. So while checking the code again, I noted the WE guide function was using NS direction. It's fixed, compile now or wait until tomorrow PPA. Sorry about that, should have checked the code first.


De nada!

That's great, Jasem! I am glad to find out I wasn't crazy and that I could be of some help with the troubleshooting.
Let's do it again sometime! :-))

And thanks for all the great work you are putting into maintaining this outstanding platform! I don't think most users realize how much work must be going into this.
Salut!

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Jose Corazon replied to the topic 'Change to Guide Module with recent update?' in the forum. 1 week ago

knro wrote:

El Corazon wrote: Nevermind, I figured it out.
indilib.org/devices/ccds/zwo-optics-asi-cameras.html
I had flashed the firmware, but I had a) not selected to OVERWRITE the old firmware and b) used the ASI120MM.icc file, not the ASI120MM-compatible.icc file to change the firmware.
Now that I flashed the firmware with the -compatible version, the USB2 version of the ASI120MM captures and loops images just fine.
That does not resolve the original problem for which I opened this topic, though, i.e. that ST4 guiding through the ASI120MM-S (USB3 version) does not work.


Did you try sending pulses manually via the INDI Control Panel like you did with the USB2 version?


I tried this again now with the USB2 version of the ASI120MM and now I replicate the same problem I am having with the USB3 version! Sending guide pulses through the ASI120MM and ST4 connection from inside Indi Control panel and ZWO Guider Control results in movement in one direction only, with the mount rapidly drifting away. Guide pulses sent to the mount directly work fine in all 4 directions. I have not tried guiding in the field yet, will have to wait for at least one week, since I will be out of town again for the next few days.

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Jose Corazon shared a photo. 1 week ago
Jose Corazon replied to the topic 'Change to Guide Module with recent update?' in the forum. 1 week ago

wvreeven wrote: It’s probably worth noting that my setup doesn’t use an RPi but simply a (2010) Dell laptop with Ubuntu Mate 17.10.1 (artful).


Agreed, this is not Pi3 dependent. I also have Zotac PI332 pico with 4 GB of RAM running Ubuntu Mate 16.04. Behaves exactly the same in all respects as the Pi3 does.

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Jose Corazon replied to the topic 'Change to Guide Module with recent update?' in the forum. 1 week ago

I was using the ZWO driver that shows up in the PhD2 drop down menu. I don't remember whether that was there before I installed Indi and Ekos and whether the PhD2 ZWO driver is dependent upon the installation of Indi or whether the driver was included in one of the last PhD2 updates.
I agree with wvreeven: This problem's got to be rooted somewhere in Ekos, since the ST4 guiding worked until the January 29 update. Besides, nobody working at ZWO, they are out of the office until February 23 to celebrate Chinese New Year.

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Jose Corazon replied to the topic 'Change to Guide Module with recent update?' in the forum. 1 week ago

Yes, that was part of the original troubleshooting. I have not tried it with the USB2 version yet since the firmware flash, but since it worked before and since it works for you, I assume that will not change. The ST4 guiding through the USB3 version is the problem. wvreeven (see a few comments above) found exactly the same problem, during calibration the mount never reverses, but drifts away into one direction, so it can't be my camera or isolated to the settings on my Pi3, as the issue reproduces on his setup.

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Jose Corazon replied to the topic 'Change to Guide Module with recent update?' in the forum. 1 week ago

Nevermind, I figured it out.
indilib.org/devices/ccds/zwo-optics-asi-cameras.html
I had flashed the firmware, but I had a) not selected to OVERWRITE the old firmware and b) used the ASI120MM.icc file, not the ASI120MM-compatible.icc file to change the firmware.
Now that I flashed the firmware with the -compatible version, the USB2 version of the ASI120MM captures and loops images just fine.
That does not resolve the original problem for which I opened this topic, though, i.e. that ST4 guiding through the ASI120MM-S (USB3 version) does not work.

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Jose Corazon replied to the topic 'Change to Guide Module with recent update?' in the forum. 1 week ago

Jasem, can you post instructions on how to perform that update on the Pi3? I installed the latest indi-asi update today, but the USB2 ASI120MM still won't capture any images, although the camera is recognized by Ekos. However, when I try to capture an image, the timer either counts down to 0.01" and then stops, freezing Ekos to the point where I cannot disconnect the camera or stop Indi, I need to force quit Ekos and restart it, or it will loop endlessly without ever rendering a frame.
I am running all services directly on the mount, nothing remotely on my desktop, I merely connect to the Pi3 via VNC.

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