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New file uploaded to MAIN@ESPMC-Eight.groups.io

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Hello,

This email message is a notification to let you know that a file has been uploaded to the Files area of the MAIN@ESPMC-Eight.groups.io group.

File: Computing planetary positions.pdf

Uploaded By: Jerry Hubbell - Explore Scientific

Description:
This is the reference I used when creating the ephemeris routine for the ExploreStars application.

You can access this file at the URL:
https://ESPMC-Eight.groups.io/g/MAIN/files/Explore%20Scientific%27s%20Files/Computing%20planetary%20positions.pdf

Cheers,
The Groups.io Team


Re: User defined database for Explore Stars

Jerry Hubbell - Explore Scientific VP Engineering
 
Edited

Hi Tim,

The format for the database is xml but the Windows ExploreStars version of the dataset is going to change when the Windows version of the ExploreStars is updated and compiled under the Windows Universal Platform. I think the Android has the new structure currently and the iOS version which will be released soon also has the same structure. I will contact Dan to find out what his plan are currently for sharing that information.

This structure only applies to the stellar and other "fixed" objects in the sky (nebulae, clusters, galaxies, etc).  The solar system objects are fixed currently in the ExploreStars dataset and are built into the programs Ephemeris routine that I wrote. We would need to build a user interface to store and use user defined solar system objects into the program. It's possible, but this is the first time we have had a request for it. Typically if you are going to image these objects, you would use the ASCOM connection with your own third party program such as Cartes du Ciel, Astrometrica, or other programs that allow you to download the MPO minor planet dataset. This is what I do when doing my minor planet or comet imaging. I will talk to our developer about this and see how much work it would be. 

FYI - When I wrote the ephemeris code, I used this reference to create it.
www.stjarnhimlen.se/comp/ppcomp.html

Thanks

Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh@...
www.explorescientificusa.com
1010 S. 48th Street
Springdale, AR 72762
1-866-252-3811

Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
             Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home




Re: PCM-8 physical dimensions?

David <dave@...>
 

Thanks!

Cheers,
Dave

On Nov 25, 2018, at 1:05 PM, Edski <Edski2000@...> wrote:

1 1/2" thick x 4" wide x 8" long
nice even measurements 


Re: PCM-8 physical dimensions?

Edski <Edski2000@...>
 

1 1/2" thick x 4" wide x 8" long
nice even measurements 


PCM-8 physical dimensions?

David <dave@...>
 

Can someone give me the physical dimensions of the PMC-8 controller?

I don’t have one to measure yet and I’m trying to plan an enclosure.

Thank you,
Dave


Re: Exos 2gt Non PMC8 Parts?

 

Jason,
 
I think you'll find that they're more than willing to be helpful, but you'll do better if you go in with a fairly well-defined problem, so yes, do try to gather up what you can on it.  
 
One thing you might try to confirm is which axis is wobbling, or if somehow both are involved.  
 
- Bob 
 


Re: Exos 2gt Non PMC8 Parts?

Jason Hansen
 

Robert,

Thanks for the reply. I agree with your statement regarding the worm and drum gears. My original thought was it was something to do with the gears and the way they are meshing. I do not see anything obviously physically wrong with them, or the way they are operating. I have tried adjusting the spacing between them to see if that was the issue. With no change. 
I also used a little white lithium grease to see if they where maybe grinding, no such luck. The only thing i can think of is some periodic error from the motor itself.
Maybe i should reach out to ES and see if i should just replace the motor and gears? With the behavior it seems like it's got to be one of those two things.
I think i will capture some video of what it's doing and post that (once these darn clouds go away). Maybe someone will recognize what it's doing.

Thanks,
Jason


Re: Useful 3D printed parts for the Exos-2

Mike Leemhuis
 

I think you’ll find that the leg clamp bracket for the PMC-eight box is a nice improvement to the EXOS-2. The cable clips help a lot too. Part design and 3D printing some of my favorite hobbies. It’s nice to be able to combine them with astrophotography.

 Let me know if you need anything else. 

Thanks,
Mike Leemhuis


Re: Useful 3D printed parts for the Exos-2

Paul Shirley
 

Thanks Mike. The leg clamp for the PMC-8 box is exactly what I was looking for, and I think I'll get an couple of extras to see if I can add a box for my talentcell power pack. Thanks again!
Eddie


Re: Exos 2gt Non PMC8 Parts?

 

Jason,
 
Glad your new mount is working out for you!
 
As to the older one... If you want parts, try calling Explore Scientific customer service.  I've had few issues, and they've been good to deal with.  I asked them for a replacement for a sticky worm block literally just yesterday. 
 
A bit of speculation on your wobble...
 
If the wobble has the period you say, that sounds kinda fast for an issue with the worm and drum gears.  I've not seen the GT's drive train - just a catalog picture, but have you looked back upstream at the motors and their gear train?  Perhaps a burr or foreign matter on an internal gear that's turning closer to that frequency?
 
- Bob
 


Exos 2gt Non PMC8 Parts?

Jason Hansen
 

Hey all,

I think I've finally got the kinks worked out of the (very small) issues i was having with the PMC8. Very happy with how it is currently performing for me.
I also have the non PMC8 version of the exos 2gt. It's always had a pretty serious wobble in the tracking. Now i know this group is specifically for the PMC8, but i can't seem to find any decent info anywhere else about this mount, so i figured i would reach out here.
Since the recent release of the ASCOM wired connection for the exos 2gt (which i acquired, set up and got operational). I have gotten very interested i trying to fix the issue that my old exos 2gt mount has. It would be great to be able to use this mount for AP as well as the PMC8.
While tracking the mount seems to "wobble" back and forth. basically it seems like someone keeps tapping the scope. It happens randomly, every 5 to 10 seconds. Sometimes a little longer, sometimes a little shorter. It's the same wobble every time. I've tried adjusting the gears and worm drive to no avail. 
So i guess my question is, does anyone have any ideas? Or should i just replace the gears and worm? And if that's the issue then where can i get these parts?
On top of that does anyone know if there are any forums or groups dedicated to the non PMC8 version of the exos 2gt so i can ask these questions in the right place?

Thanks in advance,
Jason


Re: Installing Android Database and App

Edski <Edski2000@...>
 

I watched this thread with interest as I was attempting to install Explorestars too on a new Samsung 7" tab.  My problem was I unknowingly had a bad SD card.  After multiple failed attemps,replaced the card with a much larger card and followed the instructions word by word and I was successful too.  


User defined database for Explore Stars

Tim Robertson
 
Edited

Are there any plans for a user defined database of objects for the Explore Stars program?

I am thinking of one where we can enter comet and minor planet ephemeris into the system and have it calculate current positions?

Thanks

Tim


Re: Battery Power for EXOS-IIGT with PMC-Eight

Peter Turner
 

I first started using the Celestron Power Tank with my Celestron CG5-GT mount.  I seem to remember some posts on Cloudy Nights about having to fiddle with the mount's connector (in your case PMC-8.  I don't remember if I had to do those fiddles or not with the CG5 When I got my CGEM mount it was nice because it came with an adaptor screwed into the mount so made a great connection.  However when I sold that mount I sent along that connector, so am back to my original one that came with the Power Tank.  I have no problems powering the PMC-8 with it.  Take a look at this post on CN, the third or fourth response discusses what I'm talking about.


Re: Battery Power for EXOS-IIGT with PMC-Eight

Tim Robertson
 

I have the Celestron Power Tank that I use with my other mount without issues, I tried to run the PMC-Eight with it and it I got no power light. I will need a portable power source for this controller. Watching this thread.

Tim


Re: Updated PMC-Eight User Manual Available

Jerry Hubbell - Explore Scientific VP Engineering
 

Hi David, 

Yes, we are very close to releasing the initial version of the iOS ExploreStars App. As you saw (and I was waiting to hear someone mention it) we updated our manual based on the impending release of the app. We are still doing some final tweaks and making it ready to load onto the app store for people to start downloading.  I will make an announcement here, on CloudyNights, Facebook, and on our website when it is available for download. 

Thanks for you interest in the Apple iOS version of the ExploreStars App!
 
Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh@...
www.explorescientificusa.com
1010 S. 48th Street
Springdale, AR 72762
1-866-252-3811

Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
             Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home




Re: Updated PMC-Eight User Manual Available

David Pickett
 

Thanks for the new manual, in which I was excited to read:

"Our intuitive ExploreStars app can be downloaded for free from ... the App Store for iOS devices"

I cannot find anything on the iOS App Store. When will this be available?

Thanks,

David

At 16:08 19-11-18, Jerry Hubbell - Explore Scientific wrote:
We have posted on our website the lasted version of the PMC-Eight System user manual, you can find it here:
<https://cdn.shopify.com/s/files/1/0390/6029/files/PMCEight_Booklet_V04_Website.pdf?1320815079900898530>https://cdn.shopify.com/s/files/1/0390/6029/files/PMCEight_Booklet_V04_Website.pdf?1320815079900898530

Here is the link to all the Explore Scientific manuals:
<https://explorescientificusa.com/pages/explore-documents>https://explorescientificusa.com/pages/explore-documents

Jerry Hubbell
Vice President of Engineering
Explore Scientific, LLC.
<mailto:jrh@explorescientific.com>jrh@explorescientific.com
www.explorescientificusa.com
1010 S. 48th Street
Springdale, AR 72762
1-866-252-3811

Author: <https://www.amazon.com/Scientific-Astrophotography-Professional-Practical-Astronomy/dp/1461451728/ref=sr_1_1?ie=UTF8&qid=1540490739&sr=8-1&keywords=gerald+hubbell>Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
<https://www.amazon.com/Remote-Observatories-Amateur-Astronomers-High-Powered/dp/3319219057/ref=sr_1_2?ie=UTF8&qid=1540490788&sr=8-2&keywords=gerald+hubbell>Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home




Re: Updated PMC-Eight User Manual Available

Bryan
 

Hi Jerry,

Thanks a lot. Much appreciated. :)

Cheers!

Bryan



On Mon Nov 19 09:08:17 CST 2018, Jerry Hubbell - Explore
Scientific <jrh@explorescientific.com> wrote:

*We have posted on our website the lasted version of the
PMC-Eight System user manual, you can find it here:*
https://cdn.shopify.com/s/files/1/0390/6029/files/PMCEight_Booklet_V04_Website.pdf?1320815079900898530

Here is the link to all the Explore Scientific manuals:
https://explorescientificusa.com/pages/explore-documents

*Jerry Hubbell*
*Vice President of Engineering*
*Explore Scientific, LLC.*
jrh@explorescientific.com
www.explorescientificusa.com (
http://www.explorescientificusa.com )
1010 S. 48th Street
Springdale, AR 72762
1-866-252-3811

*Author: Scientific Astrophotography: How Amateurs Can Generate
and Use Professional Imaging Data (
https://www.amazon.com/Scientific-Astrophotography-Professional-Practical-Astronomy/dp/1461451728/ref=sr_1_1?ie=UTF8&qid=1540490739&sr=8-1&keywords=gerald+hubbell
)*
*            Remote Observatories for Amateur Astronomers: Using
High-Powered Telescopes From Home (
https://www.amazon.com/Remote-Observatories-Amateur-Astronomers-High-Powered/dp/3319219057/ref=sr_1_2?ie=UTF8&qid=1540490788&sr=8-2&keywords=gerald+hubbell
)*




Updated PMC-Eight User Manual Available

Jerry Hubbell - Explore Scientific VP Engineering
 

We have posted on our website the lasted version of the PMC-Eight System user manual, you can find it here:
https://cdn.shopify.com/s/files/1/0390/6029/files/PMCEight_Booklet_V04_Website.pdf?1320815079900898530

Here is the link to all the Explore Scientific manuals:
https://explorescientificusa.com/pages/explore-documents

Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh@...
www.explorescientificusa.com
1010 S. 48th Street
Springdale, AR 72762
1-866-252-3811

Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
             Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home




Re: Installing Android Database and App

Darryl Ellis
 

SUCCESS!!!!

Download the right zip file from the right webpage, DUH!

Thanks Wes, Thomas, Jerry, All.

Darryl

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