ASIAIR and iOptron SkyGuider Pro

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tedswanson
Posts: 1
Joined: Mon Aug 12, 2019 1:53 pm

ASIAIR and iOptron SkyGuider Pro

Post by tedswanson » Wed Aug 14, 2019 11:28 am

Hello. I have an ASIAIR (latest firmware) and an iOptron SkyGuider Pro with an ASI120MM-S guide camera attached to a ZWO Mini Guide Scope. I have the ASI120MM-S plugged into the USB port of the ASIAIR and the ST-4 cable connected from the ASI120MM-S to the ST-4 port on the iOptron SkyGuider Pro. Everything basically works and I “think” the SkyGuider is guiding because the tracking light blinks steadily when the ASIAIR starts guiding. Everything else works the same as it does on my Celestron AVX mount. I see the guide star and it locks on.

However, the SkyGuider only has an RA motor – no DEC motor – so the guiding program won’t settle down or it will time out waiting for the guider to settle. If it does settle down I’m getting VERY high RMS errors – hundred of arcseconds. So, my questions are:

What mount should I choose in the mount setup screen? I’m using “On-Camera-ST4” right now, since there’s no SkyGuider Pro option.

What settings should I use in the guiding setup? I haven’t changed anything from the default.
Should I turn DEC mode to off?

I have the focal length of the guide camera set to 55mm. Is that correct for an ASI120MM-S attached to a Mini Guide Scope?

Thank you very much for your help. I love the products so far and I just bought an ASI294MC Pro for my larger telescope!

lancer jiang
Posts: 71
Joined: Mon Nov 26, 2018 9:59 am

Re: ASIAIR and iOptron SkyGuider Pro

Post by lancer jiang » Thu Aug 15, 2019 3:02 am

Hi

Thanks for using ZWO products.

"
What mount should I choose in the mount setup screen? I’m using “On-Camera-ST4” right now, since there’s no SkyGuider Pro option.
What settings should I use in the guiding setup? I haven’t changed anything from the default.
Should I turn DEC mode to off?"

Yes,choose ST4 and turn off the DEC.


"I have the focal length of the guide camera set to 55mm. Is that correct for an ASI120MM-S attached to a Mini Guide Scope?"

the focal length should be input 120 if the "mini guide scope" is 30F4

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