Rob Lancaster replied to the topic 'Issues with Orion Starshoot AutoGuider' in the forum. 17 hours 1 minute ago

Unfortunately, I asked my friend today and he just told me he sold the camera due to the issues with it and got a ZWO. So I will try asking around more.

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Rob Lancaster replied to the topic 'Lost star when dithering causes capture module to hang' in the forum. 18 hours 43 minutes ago

I have a better question. How can a random dither always move in the same direction? That sounds like a bug to me. . .

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Rob Lancaster replied to the topic 'Issues with Orion Starshoot AutoGuider' in the forum. yesterday

I have a friend who might loan one to me next week if I remember to ask him.

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Rob Lancaster replied to the topic 'Issues with Orion Starshoot AutoGuider' in the forum. yesterday

I have seen that happen before with a StarShoot. It is pretty annoying. My solution was to just restart the qhy driver if the issue happens.

I am planning to experiment with one in the near future though, so I can try to see what the problem is if I can reliably reproduce it.

Thanks,

Rob

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Rob Lancaster replied to the topic 'Guiding csv file' in the forum. 4 days ago

I don't think either one can do that. What you want is actually a feature built into most mounts called Periodic Error Correction.

Offhand I do not know the algorithm for looking for periodic error in a program like excel, but I definitely remember some things I did back in college where we were looking for periodic trends in variable stars. I think it was called phase shifting. I would bet the same kind of algorithms can be used on these data as well. One thing you might want to do is to find out the period of the worm in your mount, then you could split the data up into segments corresponding to each cycle of your worm. You could then graph all of them on the same graph and see if you see the same bump in the guiding error on each cycle of the worm or something.

Thanks,

Rob

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gehelem thanked Rob Lancaster in topic Guiding csv file 5 days ago
Rob Lancaster replied to the topic 'Guiding csv file' in the forum. 5 days ago

So I added the ability to save the csv guide log so that you could save your guiding data so that you can come back to reference it later. Or maybe you might want to take the guiding data into a program like Excel to do some numerical analysis on it. Like for example, you might try to see if the guiding is better in certain areas of the sky, or perhaps it gets better at certain times. One thing you really might want to do is to analyze the data to see if there is a pattern to your guide error that relates to your worm gear cycle for your mount (there almost certainly is one). There might be other periodic errors as well. Basically I was thinking that we are recording all this great guiding data, why not make it available if somebody wants to save it or analyze it in another program. I was not thinking about one particular purpose at the time, just making it possible to easily save the data if somebody wanted to do something with it.

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Rob Lancaster replied to the topic 'Canon T6i, Connection problem' in the forum. 6 days ago

You should try in OS X KStars on the MacBook Pro in a local indiserver and see if you get the same results.

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Rob Lancaster replied to the topic 'Lost star when dithering causes capture module to hang' in the forum. 2 weeks ago

Yes, I wrote the algorithm for KStars to continue guiding if PHD2 loses a star and then reacquires it, but not for the Internal Guider. That's a question for Jasem.

I will send him a message.

Thanks,

Rob

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Rob Lancaster replied to the topic 'Lost star when dithering causes capture module to hang' in the forum. 2 weeks ago

Ok, I see. My frame size is much smaller than yours since I'm using a ccd with a couple thousand less pixels on a side. For a DSLR I could see a larger dither distance since you do have many more pixels, especially if it helps in another way. Are you guiding with PHD2 or Ekos Guide Module?

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Rob Lancaster replied to the topic 'SX-AO help - possible on Mac?' in the forum. 2 weeks ago

Well if you want to use KStars, it should be explained in the materials in the dmg. There are a couple of PDF's in there for getting started. Its pretty straightforward. KStars can start its own INDIServer.

edu.kde.org/kstars/#download

There are also some tutorial videos and instruction videos for KStars on how it works on this website and on youtube. They apply to Windows, Mac, and Linux.

www.indilib.org/about/ekos.html
docs.kde.org/trunk5/en/extragear-edu/kstars/index.html

If you want to use INDIServer from Cloudmakers with some other software you can do that too. You can find all the documentation for that on their website.

www.cloudmakers.eu/xindi/

Thanks,

Rob

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Rob Lancaster replied to the topic 'SX-AO help - possible on Mac?' in the forum. 2 weeks ago

Hi Mike,

Then yes, that is probably true. That sounds like it. Give it a shot.

Thanks,

Rob

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Rob Lancaster replied to the topic 'SX-AO help - possible on Mac?' in the forum. 2 weeks ago

Hi Mike,

I don't know if the Sky X plans to support INDI. You could ask them. Many INDI clients can support a lot of the features that you might want, however. For example, both the Cloudmakers software and KStars support plate solving and image sequences as well as planetarium program features, and much more. PHD2 supports guiding and adaptive optics. I don't know which mount you have, but most mounts with INDI support periodic error correction either in the mount or the driver or both. I don't know about the specific features of the Sky X you are describing and how they are different, but I think that what I can get with KStars and PHD now gives me great results. Ultimately which system you choose will be your own personal choice. There are now quite a few options on OS X compared to a couple of years ago. You might want to try out some of these options. Cloudmakers software has a free (30 day?) trial and is very low cost, CCD Ciel is free, KStars is free, PHD2 is free. I ported KStars to Mac about a year ago and made many additions to it and Peter's company wrote the Cloudmakers programs. So we can help you out with any issues you might have. We are always trying to improve the programs.

Thanks,

Rob

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Rob Lancaster replied to the topic 'Lost star when dithering causes capture module to hang' in the forum. 2 weeks ago

Hi kross,

I would not recommend such a large dither. As you observed it can cause the guide star to be lost. But also, it can hurt your results when you go to align and stack the images. More of the resulting images will be cropped and you will end up with a smaller result. It might also make it slightly more difficult for the software to align the images, but I doubt that is much of an issue. So yeah the biggest problem is that it causes problems for keeping track of the guide star. If you really want to do it, could you make the tracking box larger?

Thanks,

Rob

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Rob Lancaster replied to the topic 'New at Indi' in the forum. 2 weeks ago

Hi there,

If I'm not mistaken this should probably be placed in the 3rd Party drivers folder. Note that I think there are already two radio related projects in there already. Might they help you out with your new driver?

github.com/indilib/indi/tree/master/3rdparty/indi-radiosim
github.com/indilib/indi/tree/master/3rdparty/indi-rtlsdr

Thanks,

Rob

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Rob Lancaster replied to the topic 'SX-AO help - possible on Mac?' in the forum. 2 weeks ago

Yes, the speed is one reason I was recommending using PHD2 for connecting to the SX-AO.
It's also the same reason I use PHD2 for my guiding but KStars for my imaging. It seems to give much faster and better results in guiding when PHD2 just takes care of the guiding. For me there are two reasons for that of course. The first is that I am running my devices on my raspberry pi and connecting to them from my Mac, so if PHD2 is running on the PI, the signals can be processed right there instead of having to be sent back and forth. The second is, I think you are right, since it has to be handled through the INDIServer I think that slows it down a little.

So Mike, the upshot is that I would try either running PHD2 on your Mac or on a Raspberry Pi, connect that to your guider and to your SX-AO. I would recommend using the ST-4 jack in the guide camera for guiding not INDI mount. You can make the "Aux Mount" your INDI connected mount. I would connect your imager and your telescope to your INDIServer running on either your Raspberry Pi or your Mac. Then finally connect your favorite INDI client to the INDIServer. I usually use KStars for that. I think it should work well assuming PHD2 has good AO support. Does that all make sense?

Thanks,

Rob

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Rob Lancaster replied to the topic 'SX-AO help - possible on Mac?' in the forum. 2 weeks ago

Actually in terms of applications, I think PHD2 on OS X does support it Peter.

KStars doesn't do adaptive optics, only guiding, but there is no reason you can't use KStars for image sequences with PHD2 as the external guider and use the AO system in PHD2 along with that. For my system, I currently use KStars on my Mac for captures/plate solving/etc with PHD2 for my guiding. But I don't have an AO system.

Thanks,

Rob



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