Date   

Re: Auotguiding no longer working

Chris Tardif
 

Thanks Bob...Attached is the PHD log.

 

 

Chris

 

Mount: Explore Scientific: IEXOS-100

Scopes: Explore Scientific 102mm FCD-100, Canon 400mm lens

Cameras:  Canon T3i(mod), T5i (stock), Altair GPCAM2-130-mono

Software: ASCOM, PHD, ATP, Starrynight, Stellarium, OneDrive, SharpCap
Computer:  Intel NUC and an ugly thing I built myself.

 

 

 


From: MAIN@ESPMC-Eight.groups.io <MAIN@ESPMC-Eight.groups.io> on behalf of Robert Hoskin <devonshire@...>
Sent: Tuesday, July 2, 2019 10:53:40 AM
To: MAIN@ESPMC-Eight.groups.io
Subject: Re: [ESPMC-Eight] Auotguiding no longer working
 
Chris,
 
PHD2 will have created both a Guide log and a Debug log for the session you had trouble with.  They should have captured what was going on.  Suggest you look for them in My Documents\PHD2, zip both up, and post them.  If you were in and out of PHD2 during the night and there's more than one pair, post 'em all.
 
Your 400mm lens would be easier to guide than your new 714mm scope [ie: 714mm will be less forgiving of tracking errors than 400mm].  PHD2, however will not care about that, as it has no idea whether your imaging is producing round stars at a given exposure length, or not.  
 
PHD2 may have trouble, if the extra weight or length is creating a mechanical issue, or your gear is wobbling somewhere rather than being held rigidly, but that's a different problem.  

Also - can you please update your .sig with your gear and software?

- Bob
 
--
Mounts: ES PMC-8 EXOS2
Scopes: SV 102EDT, ZWO 60/280 Guide
Cameras:  Nikon D5300, Altair GPCAM2-IMX224C
Software: ASCOM, CdC, AstroTortilla, BYN Pro, Sharpcap, PHD2
Computer:  Thinkpad x230, Win7Pro/64


Re: IEXOS-100 First Light report and a few thoughts/complaints #iEXOS-100

Kent Marts- Explore Scientific Customer Service
 

The counterweights for the iEXOS-100 are now available. These are black with a silver stripe.

Order them online at https://explorescientific.com/products/iexos-100-2-2-pound-counterweight-1kg-2-2lb-es-cw22-00

Kent Marts
Customer Service
Explore Scientific


Re: Auotguiding no longer working

 

Chris,
 
PHD2 will have created both a Guide log and a Debug log for the session you had trouble with.  They should have captured what was going on.  Suggest you look for them in My Documents\PHD2, zip both up, and post them.  If you were in and out of PHD2 during the night and there's more than one pair, post 'em all.
 
Your 400mm lens would be easier to guide than your new 714mm scope [ie: 714mm will be less forgiving of tracking errors than 400mm].  PHD2, however will not care about that, as it has no idea whether your imaging is producing round stars at a given exposure length, or not.  
 
PHD2 may have trouble, if the extra weight or length is creating a mechanical issue, or your gear is wobbling somewhere rather than being held rigidly, but that's a different problem.  

Also - can you please update your .sig with your gear and software?

- Bob
 
--
Mounts: ES PMC-8 EXOS2
Scopes: SV 102EDT, ZWO 60/280 Guide
Cameras:  Nikon D5300, Altair GPCAM2-IMX224C
Software: ASCOM, CdC, AstroTortilla, BYN Pro, Sharpcap, PHD2
Computer:  Thinkpad x230, Win7Pro/64


Re: #iexos-100 Polemaster, Field Flattener, guiding questions? #iEXOS-100

Wes Mcdonald
 

So how much is a guide scope going to be?  Total iexos cost vs exos2?  Figure spending 30$ for the polemaster mount.  Personally, I could never use a polarscope....too hard to peep through the thing.  That's why I bought a polemaster.  If you have a polemaster you don't need a polar scope.  Also if you connect your camera to the tablet to run, for example, backyard EOS or Nikon you can use sharpcap instead of a polemaster if you don't already own one.  

The iExos is a nice scope to start for sure.  It also is an easy grab and go.  

The exos2 comes with the polar scope and has a higher weight limit.  It has has better unguided performance.  It will let you go to some nice apperature.  It has a mounting hole that accomodates the polemaster (with the cgem adapter).  Should take you a pretty long way down the road.

It's nice to have choices.  You will have lots of fun either way.

Wes



--
Wes, Southport NC
PMC-8, ES ED 127, 10" LX200GPS, Astro-Tech 8" Newt, ETX-90
Polemaster, Orion ST-80 and SAG
Electrical Engineer, Retired


Re: #iexos-100 Polemaster, Field Flattener, guiding questions? #iEXOS-100

Sean
 

Wes, thanks for your reply.

It actually is thinking of future goals that I am considering this smaller mount. Right now I need something to learn with, and a smaller/less expensive mount would be the ideal solution. In time I can see moving to a larger mount, while keeping the iexos-100 for smaller scopes & lens. An alternative has always been something like the Skyguiders for just my camera, and I can see this mount taking on a similar role in the future (just tracking with a dslr and 300mm lens). My biggest problem is at this time I have nothing really to learn and experiment with. 

BTW, I just saw on the product page in the reviews a response from Explore Scientific "Explore Scientific is in the process of offering new accessories for the iEXOS100 including a polar finder scope, a heavier duty tripod and an azimuth fine control system, and a dovetail specifically designed for mounting DSLR cameras"

I don't think to start out with I would need a heavier duty tripod. My estimate of camera, guide, and scope is 7.68lb. 

--
Mounts: Yet to decide
Scopes: Soon to buy ED80
Cameras:  Nikon D5300, Sony A6000
Msc: TBA
Software: Backyard Nikon


Re: Auotguiding no longer working

Chris Tardif
 

Yes, I suppose my question lacked as you say "meat on the bone".  I set up PHD through ASCOM months ago and it was working well.  I put anew scope on the mount last week and even as a write this I realize the absurdity.  It is a 102mm Explore Scientific FCD-100.  I think I am right at the weight limit.  It slews well, polar aligns, star aligns and seems quite solid.

If I am simply tracking on a star the mount tracks and produces acceptable 20 second images....as I would expect.

When I start PHD it runs  then about 20 seoncds into autoguidng PHD throws and error about being unable to....and this is where it gets fuzzy....i can't remember the error message but it was something about not being able to affect RA or DEC and i should look for tangled cables. 

i was thinking it was either

1) too heavy a scope....I dont think this is it because it slews, aligns and tracks as well as it did before. 
2) maybe my guide scope isn't up to the longer FL of the ES scope.  I don't think this is it either since I had a 400mm lens before and now have the 714 of the ES-102m
3) some kind of software config that i don't know how to troubleshoot.  My money is on this so i was starting with the pulse guiding dialogue box from the PMC-8 driver.  I thought it might be this because for some reason the driver lost my other settings somewhere recently.  I had to reset the location, elevation and COM port so I thought it might have lost something else I missed.

thanks
chris

Chris Tardif
Microsoft
416-459-9464


From: MAIN@ESPMC-Eight.groups.io <MAIN@ESPMC-Eight.groups.io> on behalf of Robert Hoskin <devonshire@...>
Sent: Monday, July 1, 2019 11:44:55 AM
To: MAIN@ESPMC-Eight.groups.io
Subject: Re: [ESPMC-Eight] Auotguiding no longer working
 
Chris,
 
Can you put a bit more flesh on that problem statement?  What does "stopped working" look like to you?  
 
PHD2 won't start?  Won't connect devices?  Will connect, but performs terribly?  Something else?  
 
And...Do you know if ASCOM is working ok?....    
 
- Bob
 
--
Mounts: ES PMC-8 EXOS2
Scopes: SV 102EDT, ZWO 60/280 Guide
Cameras:  Nikon D5300, Altair GPCAM2-IMX224C
Software: ASCOM, CdC, AstroTortilla, BYN Pro, Sharpcap, PHD2
Computer:  Thinkpad x230, Win7Pro/64


Re: #iexos-100 Polemaster, Field Flattener, guiding questions? #iEXOS-100

Wes Mcdonald
 

Sean

Easy answers first.

You can guide via wifi as you stated.  PhD will get input from your camera via USB.  It will guide through the ascom driver which will be connected via wifi to the mount.  No st4.

The polemaster can be mounted on the adapter designed by mike leemhuis.  It can be found in thingverse.  It is here: 

You can get it printed up at 3DHubs or elsewhere.  It mounts on the mount vixen saddle and you use it to align prior to mounting your telescope.

As far as I am aware there is no solution from ES.  Another method to mount the polemaster is to put it on an ADM adapter which clamps onto a vixen bar you would install in the saddle.

Can't comment on a field flattener.

For what it's worth, you might want to consider your future goals before you decide on a mount.  The iExos has a pretty low weight limit which will only support smaller scopes and less add-ons. The exos2 has more payload and it's unguided tracking is better...but neither are great for unguided photos at higher F#s. From what I have seen reported here they both guide down to about the same precision. 

Final thought is that you will likely want to go serial connection to the mount.  It just works.

Wes



--
Wes, Southport NC
PMC-8, ES ED 127, 10" LX200GPS, Astro-Tech 8" Newt, ETX-90
Polemaster, Orion ST-80 and SAG
Electrical Engineer, Retired


#iexos-100 Polemaster, Field Flattener, guiding questions? #iEXOS-100

Sean
 

Hi all
 
I had originally thought to start out with my first mount to be the EXOS2-GT PMC-Eight. However, I am considering for my first true telescope & mount to start with the IEXOS-100 attaching ES ED80, Nikon d5300 + ZWO 60mm scope & ZWO ASI120MM-S for autoguiding. 
 
My first and most important question is whether any updates on adapters for mounting Polemaster to the iEXOS-100?
 
Next question, with ED80 + Nikon d5300, any recommendations for field flattener? Right now I do have a T-adapter for my Nikon currently connected to a 1.25" T-mount. Would I just use field flattener + t-adapter, or is there any additional spacing required? 
 
Lastly, if I understand correctly, the iExos-100 would connect using USB to laptop, and then I would use PHD to guide directly, no ST4/serial connection back to the mount, correct?
--
Mounts: Yet to decide
Scopes: Soon to buy ED80
Cameras:  Nikon D5300, Sony A6000
Msc: TBA
Software: Backyard Nikon


Re: Auotguiding no longer working

 

Chris,
 
Can you put a bit more flesh on that problem statement?  What does "stopped working" look like to you?  
 
PHD2 won't start?  Won't connect devices?  Will connect, but performs terribly?  Something else?  
 
And...Do you know if ASCOM is working ok?....    
 
- Bob
 
--
Mounts: ES PMC-8 EXOS2
Scopes: SV 102EDT, ZWO 60/280 Guide
Cameras:  Nikon D5300, Altair GPCAM2-IMX224C
Software: ASCOM, CdC, AstroTortilla, BYN Pro, Sharpcap, PHD2
Computer:  Thinkpad x230, Win7Pro/64


Re: Auotguiding no longer working

Wes Mcdonald
 

Chris

All looks right to me.
Wes

--
Wes, Southport NC
PMC-8, ES ED 127, 10" LX200GPS, Astro-Tech 8" Newt, ETX-90
Polemaster, Orion ST-80 and SAG
Electrical Engineer, Retired


Auotguiding no longer working

Chris Tardif
 

For some reason my auto-guiding suddenly stopped working and I can't figure out why.  Can someone confirm the values that are supposed to be in this dialogue box?

Chris


Re: Exos 2 pmc 8 goto precision issue #EXOS2

Wes Mcdonald
 

Jenya

The cone angle to worry about is with your telescope and its vixen bar.  You will find adjustment screws on the bar perhaps to use to adjust it.  In practice if the scope is bolted directly to the vixen bar there should be very little cone angle.  If the scope is in rings with three screw mounts then the cone could indeed be pretty terrible.

If you search the forum you will find a video Jerry posted regarding how to adjust cone angle.  

If the telescope is mounted directly to the vixen, that is without adjustable ring mounts, the cone error will certainly not give you a problem if you SYNC anywhere near your dim deep space object.

Wes

--
Wes, Southport NC
PMC-8, ES ED 127, 10" LX200GPS, Astro-Tech 8" Newt, ETX-90
Polemaster, Orion ST-80 and SAG
Electrical Engineer, Retired


Re: Exos 2 pmc 8 goto precision issue #EXOS2

Jeny@
 

Wes,
Greatly appreciate your input. I'll try soft/hard sync approaches to make the mount goto on target with acceptable accuracy.
Do you know, is it possible to adjust exos-II to fix that 'cone angle' error without modifying the mount, I mean by some screws adjustments?

Thanks,
Jenya


Re: Exos 2 pmc 8 goto precision issue #EXOS2

Wes Mcdonald
 

Jenya

In my experience, after aligning with Polemaster, my goto is best if I do not do any alignment.  That is, the polemaster gets your mechanical alignment just right.  If you are using iOS or windows then do a subsequent SYNC on a star after centering it using the LRUD buttons. If you have Android there is no SYNC button (correction is in work I believe).  I would use something near about 0 Dec and near meridian, but about any star will work.  That sync will take the home error out and leave you with a good alignment.  If you are doing a deep space space dim object that is invisible in your finder/red dot, do a sync on a nearby star and your go-to will we bang on.

If using Android you can do a pretty good sync, I think, manually.  After polemaster, point to a star near your object of interest.  Then break the clutches and manually center the star and reclamp the clutches.  Subsequent goto should be really good.  For this adjustment do not use the LRUD controls, do the manual adjustment.

Last thoughts, if you have a really bad cone angle your go-to performance after a sync will be best near the sync location and fall apart as you move away.  In that case just keep doing a sync near the object of interest on a star you can see (after you center it with the LRDU buttons or via the loose clutch method) and the subsequent goto to a nearby dim object will be very good.

So in summary, two ways outlined after doing a good physical alignment with a polemaster:

1.  Use the software SYNC button in Explorestars on a bright star after centering with the LRUD buttons or

2.  Perform a manual sync by centering a star in the eyepiece by loosening the RA and DEC clutches and manually centering it.

Wes


--
Wes, Southport NC
PMC-8, ES ED 127, 10" LX200GPS, Astro-Tech 8" Newt, ETX-90
Polemaster, Orion ST-80 and SAG
Electrical Engineer, Retired


Exos 2 pmc 8 goto precision issue #EXOS2

Jeny@
 

Hi, I’m working on making my EXOS-II with PMC-8 mount to more precisely point on objects when using ExploreStars on Windows.
My best result so far is around 1.5 degrees off the target – that is in the FOV of mine 9x50 finderscope. I’m able to recenter if target is a bright objects, but on faint objects it’s getting much more challenging.

I looking for some advises on how to improve my GO-TO pointing precision.
I do level my mount and do precise polar alignment using Polemaster before doing 2 or 3 star alignment.
I did verify RA/DEC alignment – seems like DEC alignment is in sync with marks on the mount, but RA was a little bit off and I had to remark it.

Interesting pattern, when doing 2-3 star alignment, goto on object after 2-3 star alignment, or just goto to object like planet before 2-3 star alignment – telescope is always get pointed about 1.5 degree to the right of a target.
It's almost like alignment does not add any accuracy to goto,

 

Thanks!

Jenya


Re: G-11 vs EXOS-2 #TECHNICAL #G11 #EXOS2

Jerry Hubbell - Explore Scientific VP Engineering
 

Thanks Ji, that's good to hear. I saw a similar improvement as measured by the TDM, down to 0.35 arc-seconds RMS.
--
Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh at explorescientific.com

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


Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Wilderness, VA
Mounts
: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras:  QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating

Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!


Re: G-11 vs EXOS-2 #TECHNICAL #G11 #EXOS2

JI THERIOT <ji.theriot@...>
 

Jerry,
I wanted to give you and the group an update of the performance of my mount after the firmware update. Prior to the update a good night for me was in the ball park of .65”-.75” guided rms. After the update I dropped that number down to < .50”.  Needless to say I am absolutely thrilled by the performance. I will add that I did the update under the stars, guiding for a while with the old firmware and then updating and comparing the new firmware.  My guided rms dropped from .7” to .45”.  Pretty impressive, in my mind at least.

Ji


locked Re: FORUM TERMS OF SERVICE UPDATED 2020-09-19 #ExploreScientific

brian skinner
 

Many thanks indeed. All signed up (I think!).


On Fri, 28 Jun 2019 19:49 jrichard333 <jrichard333@...> <jrichard333@... wrote:

https://espmc-eight.groups.io/g/MAIN/subgroups

 

JR

 

From: MAIN@ESPMC-Eight.groups.io [mailto:MAIN@ESPMC-Eight.groups.io] On Behalf Of brian skinner
Sent: Friday, June 28, 2019 1:47 PM
To: MAIN@espmc-eight.groups.io
Subject: Re: [ESPMC-Eight] FORUM TERMS OF SERVICE #ExploreScientific

 

Hi Wes, just tried groups.io and it is a commercial site, with no sign of explore scientific forums that I could find....

Kind regards, Brian 

 

On Fri, 28 Jun 2019 11:39 Wes Mcdonald <wesmcd6@... wrote:

Brian

 

The new subgroup is up.  I believe you subscribe to it by going to the groups.io page and bring up Main.  On the left side list select Subgroups.   It will show you your subgroups and have a place to click to join another subgroup.  I wish I was more certain of this.  I always have to hunt around to find that little join button.  

 

Wes


--
Wes, Southport NC
PMC-8, ES ED 127, 10" LX200GPS, Astro-Tech 8" Newt, ETX-90
Polemaster, Orion ST-80 and SAG
Electrical Engineer, Retired


Watch the 2019 Total Solar Eclipse Live at the Cerro Tololo Observatory in the Southern Hemisphere #ExploreScientific #G11

Jerry Hubbell - Explore Scientific VP Engineering
 

The Exploratorium Eclipse Group will be broadcasting the Total Solar Eclipse in the southern hemisphere from Cerro Tololo Observatory Live on July 2nd. 

 

https://www.exploratorium.edu/eclipse

 

Explore Scientific is providing support for the live broadcast with our G11 PMC-Eight Mount system and our 5-inch ES 127 FCD100 ED APO Triplet Carbon Fiber telescope. You can see Explore Scientific's President Scott Robert's video about the trip here:

 

https://www.facebook.com/ExploreScientificUSA/videos/1187787041400872/UzpfSTIxNzUzNDUwODQ0NzI5MDoxMTQxMDIxMTQ5NDMxOTUw/

 

Jerry


--
Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh at explorescientific.com

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


Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Wilderness, VA
Mounts
: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras:  QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating

Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!


locked Re: FORUM TERMS OF SERVICE UPDATED 2020-09-19 #ExploreScientific

Jerry Hubbell - Explore Scientific VP Engineering
 

On Fri, Jun 28, 2019 at 01:43 AM, brian skinner wrote:
(updated?) terms of reference
Hi Brian,

I added item number 2 to the Terms of Service, that was the only update.
 
--
Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh at explorescientific.com

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


Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Wilderness, VA
Mounts
: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras:  QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating

Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!

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