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Re: Guiding

W. Christopher Moses
 

Thanks Sunil, Ben, and Tim

I have two cameras, a ZWO ASI 120 and a QHY 5IIL-M, three or four ST-4 cables, and three programs: PhD, TheSkyX and Metaguide.

I'm going to pin down this issue tonight!

I may or may not solve it, but I should know where the problem is by the end of the evening!

(Of course, there is always the caveat that I might just be doing something brainless and that I am the problem, lol)

Please keep providing any guiding experiences you have.


Re: Guiding

W. Christopher Moses
 

Tim,
I vaguely remember something about using CdC.  I think, maybe, you had to unpark the mount in POTH before connecting to CdC?  I can't remember exactly.  I would search the CludyNights thread. I think it was in there.


Re: Guiding

W W
 

Chris and Ben,

I was able to park my mount just fine using CdC.  Now again, I was doing this using the wifi settings.  I wonder if there is a command issue between the wifi and serial port modes???

Tim


Re: Guiding

W W
 

Chris,

You are right, I had to un-park the mount using the ASCOM window and then I was able to do slewing.  After that I was able to park the mount through CdC. 

Tim 


Re: Guiding

Sunil Bhaskar Bhaskaran
 

Guys I managed to guide yesterday but still my phd2 graph was bad. As per phd2 it means severe backlash. North calibration was bad as usual.ill be heading to our club dark site on thursday and give more update.

Sunil

On Jul 25, 2017 8:50 PM, "twwstang@... [ESPMC-Eight]" <ESPMC-Eight@...> wrote:
 

Chris,


You are right, I had to un-park the mount using the ASCOM window and then I was able to do slewing.  After that I was able to park the mount through CdC. 

Tim 


Re: Guiding

Sunil Bhaskar Bhaskaran
 

Tim,


       When you park what is the DEC bubble indicator position? Right in the middle or a bit off(maybe slightly? Mine goes a bit off, hence asking.

Sunil


Re: Guiding

W. Christopher Moses
 

Sunil,
    Did you try a Star Cross Test?  If not, please do.  If it passes, you should be able to guide. If it fails, you can't and you can figure out which direction is the problem.


Re: Guiding

Michael Fulbright
 

Don't know if you guys have seen these videos:

https://www.youtube.com/watch?v=INooeOQWOo8
https://www.youtube.com/watch?v=5U9H8IAqyJE

but looks like Jerry was at Almost Heaven Star Party over the weekend and thus probably not able to answer emails.

It says their tent was destroyed later - yikes!

Michael Fulbright


On 7/26/2017 10:19 AM, chris_moses@... [ESPMC-Eight] wrote:
 

Sunil,

    Did you try a Star Cross Test?  If not, please do.  If it passes, you should be able to guide. If it fails, you can't and you can figure out which direction is the problem.


Re: Guiding

W. Christopher Moses
 

I just posted some pictures of my calibration and star cross tests over at Sunil's CN post:



Re: Guiding

W W
 

Sunil,

When I was testing the other day, the mount bubble levels were level in the middle.  Again, when I was tesing I was using the ASCOM driver over wifi.  This might be the difference with my testing.  I will test here shortly today how my LodeStar X2 auto guider works with ASCOM and and ST4.  I will report my findings.

Thanks,

Tim


Re: Guiding

Michael Fulbright
 

If you aren't following this thread you might want to check Jerry's post today:

https://www.cloudynights.com/topic/585331-new-explore-scientific-losmandy-g11-issues/?p=8017809

Michael Fulbright


On 7/28/2017 5:42 PM, twwstang@... [ESPMC-Eight] wrote:
 

Sunil,


When I was testing the other day, the mount bubble levels were level in the middle.  Again, when I was tesing I was using the ASCOM driver over wifi.  This might be the difference with my testing.  I will test here shortly today how my LodeStar X2 auto guider works with ASCOM and and ST4.  I will report my findings.

Thanks,

Tim


Re: Guiding

W W
 

Thanks Michael for the information!  I have left messages for Jerry and Chris.  Hopefully someone will have time to work with me this weekend.  I have followed Jerry's instructions so I can be ready when someone is available.

Tim


Using the PMC-Eight to track the Eclipse

Devin Gingrich
 

Hi everyone,

Just wondering if we could start a thread with advice/tips for getting an EQ aligned for daytime use and using the PMC-Eight to track?

Any tips/tricks you have for getting a good daytime alignment?

Anything special needed in the app for solar tracking?

Thanks!


Re: Using the PMC-Eight to track the Eclipse

hubbell_jerry@...
 

The method I use is to first level the mount as precisely as you can with a independent level, not the ones mounted in the mount. Then use a compass, compensating for magnetic declination, to align the azimuth to North. If you are careful, you can get within 1 degree of the NCP. Make sure your mount's RA and DEC are set according to any markings to make sure they are centered. The G11 has bubble levels for this, and the EXOS2 has little arrow marks to line up on each axis. Once you have done that, position your mount using the hand controller very close to the meridian so that the counterweight bar is horizontal. You can use the coordinate input screen on the ExploreStars application for this by entering 180 degrees in the Azimuth coordinate. Enter 90 degrees - Latitude in the Altitude coordinate and the mount will slew the telescope to a vertical position. Once your mount stops moving, then you can place a level on top of your telescope tube (assuming it provides a flat across the opening) and adjust the Altitude adjustment on the mount to make it level. At this point your mount should be aligned within 1 degree or better if you were careful.

I have used this method for several years when setting up my system during the day.


Re: Using the PMC-Eight to track the Eclipse

W. Christopher Moses
 

Hi,
In terms of solar use and solar tracking, I tried it once using TheSkyX and it worked fine.  I was already polar aligned from the night before, so I just slewed to the sun and refocused.
    Obviously, I wasn't guiding, but the sun stayed nicely centered for the 2-3 hours I watched it.
    I would imagine CdC or other programs would also work.
    I'm headed down to North Carolina to watch it, you?


Re: Using the PMC-Eight to track the Eclipse

Devin Gingrich
 

I’m in the DC area and am setting up several scopes for a viewing event with ~150 kids. I’m hopeful ES will get the EXOS2 with PMC-Eight back in stock soon enough so I can include it (carrying my Comet Hunter) in the lineup. :-)


Re: Using the PMC-Eight to track the Eclipse

tdamon@...
 

Thanks for the setup details Jerry. I tried it out and it worked pretty well. I still had some drift so I worked on fine tuning but never got it entirely stable. I'll try again this weekend to see if I can get azimuth dialed in to stop the motion. It was drifting south so I think I was too far east. Overall with a 952mm scope and 1.6x Canon DSLR I was able to track reasonably well...Probably needed to adjust roughly every 5min to keep the solar disk entirely in frame.

One interesting note - I tried using a different bubble level instead of those on the mount as you suggested in you setup description. They do give different results. I'll try using this other level the next night I go out and see if my night tracking improves.

Tim


Re: Using the PMC-Eight to track the Eclipse

hubbell_jerry@...
 

Hi Tim, I know the instructions were a bit terse, but I am glad you were able to get it to work for you. The more you practice it, the better you will get at it.

Jerry


Feeling stupid... help please!

Devin Gingrich
 

My beautiful new EXOS2 with PMC-Eight got delivered a few days ago and I’ve been having issues connecting to the PMC-Eight. I’ve tried a Surface Pro (Windows 10 Pro) and a Surface 4 (Windows 8.1 Pro) and, after installing the data files, both just get to the “Please Wait” message in the app and never seem to connect.

I’ve been reading the manual in the Bresser page (https://www.bresser.de/out/media/aba993aca6c92574b69adad64b4aceb3.pdf) but can’t seem to get a listing of how to decipher the LED function lights. Is there a guide somewhere that deciphers what they mean?

I am in the process of installing Windows 10 on my McaBook Pro in Bootcamp in the hopes that maybe there is just something goofy with the Surface line that isn’t compatible with the PMC-Eight yet. I am also installing the ASCOM driver set, trying to connect via that route in hopes of proving it isn’t a fault with the PMC-Eight and more on the App/Windows machine side of things.

Any thoughts/tips/suggestions would be most appreciated. Thanks in advance!


Re: Feeling stupid... help please!

Devin Gingrich
 

Well... after finally bringing myself to ask help here, I thought I’d try one last thing: to reset the PMC-Eight and see if that did anything. When trying to press the reset button, I noticed that nothing was happening (no noticeable click). I wiggled the reset button around gently, and it released itself. Apparently it was stuck down/depressed and in a constant reset mode. Anywho, the other lights came on and I’ve been able to control the mount from both surfaces and the Bootcamp Windows install on my Mac.

Very strange... just so happy it’s working though!!