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Cem40: good sample?

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#1 ippiu

ippiu

    Mariner 2

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Posted 23 January 2020 - 05:40 AM

G'day everybody.

 

After purchased my new Cem40, I was wondering if i was so lucky to have a good well built sample of IOptron Cem40.

 

So i did a 40 minutes Guiding Assistant run to measure periodic error and drifting and also backlash.

 

I analyzed the final results either in Pecprep as in Phd Log Viewer.

 

What do you think about?

 

Here some screenshot...and original .txt log at the end

 

pecprep.png

 

phd_1.png

 

phd_2.png

 

GA_result.png

 

backlash.png

 

 

Here the factory periodic error measured by encoder....

 

Cem40_PE.jpg

 

Attached File  PHD2_GuideLog_2020-01-22_corretto.txt   202.93KB   9 downloads


Edited by ippiu, 23 January 2020 - 05:56 AM.

  • eros312, vdb and GrandadCast like this

#2 Tapio

Tapio

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Posted 23 January 2020 - 06:25 AM

Looks good to me. And easy to autoguide.



#3 rmollise

rmollise

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Posted 23 January 2020 - 09:00 AM

I think it will perform/guide well for you. That said, 15-seconds or so of periodic error peak to peak is pretty normal for mounts in this class these days.




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