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INDI Library v1.9.2 Released (14 Sep 2021)

Bimonthly Stable INDI Library release introduces new drivers and fixes for existing ones.

New Mexico Cosmos Observatory

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Replied by Brian on topic New Mexico Cosmos Observatory

Beautiful setup and setting.  Congratulations! 
-Brian

NanoPC-T4 - Armbian focal
iOptron CEM25P mount
Photoline 80mm triplet refractor
ZWO ASI294MC Pro Imaging camera
ZWO ASI290MM mini Guide camera
ZWO ASI EAF focuser

The following user(s) said Thank You: Peter Kennett
6 months 1 day ago #69341

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Very nice observatory.
Kstars Mac osx
Odroid C4 / WO Redcat51 / CEM25p / ZWO533MC / QHY5L-II-M (OAG)
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6 months 1 day ago #69343

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And there I was thinking Well at least I'm not deep in the African bush like poor old PK.

 
Mach1, TS86SDQ, ASI071, ASI174, OAG, focusPro
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6 months 23 hours ago #69344

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LOL! Yeah, I retired from the Foreign Service and settled down in New Mexico.

iOptron CEM120 EC2 and CEM25P
Celestron C11 EdgeHD
William Optics Star71
ASI 1600Mm Pro, ASI 462MC
Moonlight motorfocus & Esatto focuser
LodeStar X2 and ZWO OAG
DewBuster
NANO PC-T4
6 months 22 hours ago #69346

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Very nice setup! Congrats!
----
ES ED 127mm FCD100, AZEQ6 GT, FocusLynx ESX25, Nikon D800 , ASI120mm-s, Polemaster
-- RPi4 4Gb Stellarmate , Windows 10 Pro, Kstars/VNC
-- RPi4 8Gb Ubuntu mate 20.04.1 LTS - Kstars/NoMachine
The following user(s) said Thank You: Peter Kennett
6 months 20 hours ago #69362

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Wonderful job.
The following user(s) said Thank You: Peter Kennett
6 months 20 hours ago #69364

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Dreams come true!
5 months 4 weeks ago #69388

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Looks like you have a big backyard.

Prepare for me to set up camp there. It's just an easy 9 hr drive for me. You may want to put some more beer in the fridge....

:-)

One question, though: I don't think you are guiding through your main telescope at almost 2000 mm FL, are you? So I think the calculated RMS value is overly generous. You should substitute that with your guide scope in the drop down menu. That will probably bring your RMS into a more normal range.

I would also guide at 1x1 bin, not 4x4 bin for maximal resolution.

Looking forward to talking more about this around the campfire.

See you soon,

Jo
Atlas Pro AZ-EQ, ASI1600MM-Pro, ASI120MM-S, ES102ED, WO-Z61, Nikon D3300, ASI-EFW, ZWO LRGB,Ha,O3,S2 filter set
5 months 4 weeks ago #69390

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I do guide with an OAG at 1956mm focal length - f/7.
Note these are 10 second guide exposures, at the CEM120 EC2 tracks really well in between.

iOptron CEM120 EC2 and CEM25P
Celestron C11 EdgeHD
William Optics Star71
ASI 1600Mm Pro, ASI 462MC
Moonlight motorfocus & Esatto focuser
LodeStar X2 and ZWO OAG
DewBuster
NANO PC-T4
Last edit: 5 months 4 weeks ago by Peter Kennett.
5 months 4 weeks ago #69393

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Got it!
But 0.15 RMS feels unreal. What RMS are you getting when you do not use 4x4 binning, but 1x1 binning?

There used to be a mistake in the algorithm in which the reported RMS was simply divided by the binning factor, without making any difference to the real RMS. Both Wouter and I were mislead by this for a good while, as we were using 2x2 binning which neatly cut the reported RMS almost in half while actually worsening the true RMS through reduced resolution of guide star movement.

I wonder whether that problem has been resolved or possibly crept back in again.

Jo
Atlas Pro AZ-EQ, ASI1600MM-Pro, ASI120MM-S, ES102ED, WO-Z61, Nikon D3300, ASI-EFW, ZWO LRGB,Ha,O3,S2 filter set
5 months 4 weeks ago #69422

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Could be, not really sure. But I don't have a tracking issue imaging at 1956mm focal length. Examples seen above.
I have not tried 1-1 yet. But since I see no tracking issues, I'm not sure I need to. I can see errors at 0.4" easily and right now I rarely get those anymore. I am keeping about 90% of my images.

Not sure if it makes a difference, but I am in central NM at 7,000 feet altitude.

iOptron CEM120 EC2 and CEM25P
Celestron C11 EdgeHD
William Optics Star71
ASI 1600Mm Pro, ASI 462MC
Moonlight motorfocus & Esatto focuser
LodeStar X2 and ZWO OAG
DewBuster
NANO PC-T4
5 months 4 weeks ago #69423

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Seeing is definitely superior at that altitude and dry atmosphere. And whatever works!

Still, 0.15 looks unreal. At 10s exposure, you should have no problem reducing the binning to 1x1 on your guide cam without affecting the SNR much.
It would be interesting to see whether your RMS changes when you change the binning while leaving everything else the same. Testing that would only take you 20 min or so.
Atlas Pro AZ-EQ, ASI1600MM-Pro, ASI120MM-S, ES102ED, WO-Z61, Nikon D3300, ASI-EFW, ZWO LRGB,Ha,O3,S2 filter set
5 months 4 weeks ago #69424

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