Date   

Re: Any Tips From Experienced Mach2 Users

Roland Christen
 


my ZWO camera has a two port on-board hub
Maybe that's all you need.

Rolando


-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Wed, May 20, 2020 7:41 pm
Subject: Re: [ap-gto] Any Tips From Experienced Mach2 Users

Thanks Roland for the advice.  All excellent points.  Much appreciated.  The through the mount cabling of the Mach2 will be a nice upgrade for me and will open the door to more automation in my imaging.  I won't have to worry about personally monitoring meridian flips and re-arranging cables to prevent snags, etc.  I hadn't planned on a hub - my ZWO camera has a two port on-board hub - but I am now thinking about that option.  Thanks again.
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: APCC Pro 1.8.1.1 update #APCC

Cheng-Yang Tan
 

You can download it from here:


For whatever reason, some APCC installs are unable to find the latest updates when "check for updates" is pressed. Mine is one of them. Ray and I both tried the debug the problem and Ray thinks it's something to do with .net.

That's why I've asked Ray to post here when there's an update so that people like us can just download it by hand.

cytan






On Wednesday, May 20, 2020, 07:39:04 PM CDT, Jerome Allison <jallison@...> wrote:


[Edited Message Follows]

Where do you find these versions - 1.8.0.9 and 1.8.0.11?  Are they developer versions?

All I can find is "APCC Pro - Public Release Version      March 7, 2020    APCC Pro v1.8.0.5".

EDIT: Never mind, I see under Help there is a "Check for updates...".  I'm a brand-new user of APCC.

SECOND EDIT: What I found in the manual earlier, and now at home trying firsthand, doesn't work.  From v1.8.0.5, the "Check for updates" says "No updates to APCC are available". Why is that?

Also, the APCC window is always on top of all other windows.  Can that be changed?


Re: Any Tips From Experienced Mach2 Users

Dean Jacobsen
 

Thanks Roland for the advice.  All excellent points.  Much appreciated.  The through the mount cabling of the Mach2 will be a nice upgrade for me and will open the door to more automation in my imaging.  I won't have to worry about personally monitoring meridian flips and re-arranging cables to prevent snags, etc.  I hadn't planned on a hub - my ZWO camera has a two port on-board hub - but I am now thinking about that option.  Thanks again.
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Create a PEM curve with a camera?

Roland Christen
 

The PE curve will apply to the mount, and has no bearing on what happens to the main scope flexure. By definition the PE curve cannot store flexure and making a PE curve automatically throws out any flexure component because it is not periodic.

Rolando


-----Original Message-----
From: Stuart <stuart.j.heggie@...>
To: main@ap-gto.groups.io
Sent: Wed, May 20, 2020 7:08 pm
Subject: Re: [ap-gto] Create a PEM curve with a camera?

Hey David, I'm sure you're right to be wondering about the guide scope approach. Have you used this guide scope / main scope together before and confirmed there is no flexure? If you haven't I'd be worried that you'll build a PEC curve for the guide scope only. 


On Wed, 20 May 2020 at 20:06, <davidenck@...> wrote:
Hello All, This may be a silly question, but can I use an ASI 290 mini guide camera (2.9 pixel size) through my guide scope (162 mm focal length) to create a PEM curve for my AP1100  when the day comes? Or should  it be through the   main scope.  It is a  Meade lx850 14 inch SCT..  Thinking the guide scope would avoid any mirror shift and such.. My main imaging  camera is a Canon T2i.. 

Thank you,  David

--

Stuart
http://www.astrofoto.ca/stuartheggie/


Re: Create a PEM curve with a camera?

Bill Long
 

Should work fine, IIRC Ray has a special version of PHD just for PEMPro usage.


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Stuart <stuart.j.heggie@...>
Sent: Wednesday, May 20, 2020 5:08 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Create a PEM curve with a camera?
 
Hey David, I'm sure you're right to be wondering about the guide scope approach. Have you used this guide scope / main scope together before and confirmed there is no flexure? If you haven't I'd be worried that you'll build a PEC curve for the guide scope only. 


On Wed, 20 May 2020 at 20:06, <davidenck@...> wrote:
Hello All, This may be a silly question, but can I use an ASI 290 mini guide camera (2.9 pixel size) through my guide scope (162 mm focal length) to create a PEM curve for my AP1100  when the day comes? Or should  it be through the   main scope.  It is a  Meade lx850 14 inch SCT..  Thinking the guide scope would avoid any mirror shift and such.. My main imaging  camera is a Canon T2i.. 

Thank you,  David


--

Stuart
http://www.astrofoto.ca/stuartheggie/


Re: Create a PEM curve with a camera?

Roland Christen
 

I think so if you have a good pixel scale.

Rolando



-----Original Message-----
To: main@ap-gto.groups.io
Sent: Wed, May 20, 2020 7:06 pm
Subject: [ap-gto] Create a PEM curve with a camera?

Hello All, This may be a silly question, but can I use an ASI 290 mini guide camera (2.9 pixel size) through my guide scope (162 mm focal length) to create a PEM curve for my AP1100  when the day comes? Or should  it be through the   main scope.  It is a  Meade lx850 14 inch SCT..  Thinking the guide scope would avoid any mirror shift and such.. My main imaging  camera is a Canon T2i.. 

Thank you,  David


Re: Any Tips From Experienced Mach2 Users

Roland Christen
 

Good polar alignment helps a lot. Keeping the tripod/pier low makes for a more stable system. If you have more than 1 main scope, then side by side is more stable than on top of each other, unless the second scope is small (guide scope etc). Use thru-mount cable if you can, with a good powered hub. Otherwise tie the cables to the dovetail plate before snaking it down.Keep dew off the main scope and your coatings will last longer.

Rolando



-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Wed, May 20, 2020 6:02 pm
Subject: Re: [ap-gto] Any Tips From Experienced Mach2 Users

Thanks Roland, after your advice yesterday I'm not really concerned about guiding settings.  My intent was to solicit any general operating tips from users based on their experience.  For instance, it may or may not [much more likely] have occurred to me that I should make sure and pull the RAPAS off before slewing the mount.  I haven't had to do that with my previous mounts.  It hasn't been something I have had to think of before and so I was glad that the topic came up.  So I was just wondering if there are any other useful things to know... that aren't about guiding.  ;-)
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Create a PEM curve with a camera?

Stuart <stuart.j.heggie@...>
 

Hey David, I'm sure you're right to be wondering about the guide scope approach. Have you used this guide scope / main scope together before and confirmed there is no flexure? If you haven't I'd be worried that you'll build a PEC curve for the guide scope only. 


On Wed, 20 May 2020 at 20:06, <davidenck@...> wrote:
Hello All, This may be a silly question, but can I use an ASI 290 mini guide camera (2.9 pixel size) through my guide scope (162 mm focal length) to create a PEM curve for my AP1100  when the day comes? Or should  it be through the   main scope.  It is a  Meade lx850 14 inch SCT..  Thinking the guide scope would avoid any mirror shift and such.. My main imaging  camera is a Canon T2i.. 

Thank you,  David


--

Stuart
http://www.astrofoto.ca/stuartheggie/


Create a PEM curve with a camera?

David Enck
 

Hello All, This may be a silly question, but can I use an ASI 290 mini guide camera (2.9 pixel size) through my guide scope (162 mm focal length) to create a PEM curve for my AP1100  when the day comes? Or should  it be through the   main scope.  It is a  Meade lx850 14 inch SCT..  Thinking the guide scope would avoid any mirror shift and such.. My main imaging  camera is a Canon T2i.. 

Thank you,  David


Re: Any Tips From Experienced Mach2 Users

Dean Jacobsen
 

Thanks Roland, after your advice yesterday I'm not really concerned about guiding settings.  My intent was to solicit any general operating tips from users based on their experience.  For instance, it may or may not [much more likely] have occurred to me that I should make sure and pull the RAPAS off before slewing the mount.  I haven't had to do that with my previous mounts.  It hasn't been something I have had to think of before and so I was glad that the topic came up.  So I was just wondering if there are any other useful things to know... that aren't about guiding.  ;-)
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Any Tips From Experienced Mach2 Users

Roland Christen
 

For first time operation of any mount setup, run the Guiding Assistant, get all the data, evaluate it, and set the mount up according to what is recommended by the Guiding assistant. Why futz around and ask what others have for settings? every setup is different, has different dynamics, different seeing, different focal lengths etc etc. Use the power of the software to get you grounded and started. That's my advice.

Rolando


-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Wed, May 20, 2020 3:42 pm
Subject: [ap-gto] Any Tips From Experienced Mach2 Users

Any operating tips from those of you who have been using your Mach2s for a while now?

I know that I need to remember to remove the RAPAS before slewing the mount.  Guiding with PHD2 seems to be no different than what I have been doing with the exception of a 2 or 3 second delay between exposures.  Any other useful tips?
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Any Tips From Experienced Mach2 Users

Dean Jacobsen
 

Any operating tips from those of you who have been using your Mach2s for a while now?

I know that I need to remember to remove the RAPAS before slewing the mount.  Guiding with PHD2 seems to be no different than what I have been doing with the exception of a 2 or 3 second delay between exposures.  Any other useful tips?
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: APCC Pro 1.8.1.1 update #APCC

Bill Conrad
 

Thanks Ray.


Re: APCC Pro 1.8.1.1 update #APCC

Cheng-Yang Tan
 

Hi Ray,
   Do you mind posting here whenever there is an update of APCC? My APCC never informs me when there is an update. (FYI, PemPro, OTOH, always does)

Thanks!

cytan

On Wednesday, May 20, 2020, 10:08:16 AM CDT, Ray Gralak <groups3@...> wrote:


> Ray, when do you expect to have a fix?

I believe I have a fix already, but I need some clear skies to test it.

So, hopefully within a few days.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3:  https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver


> -----Original Message-----
> From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Greg Salyer
> Sent: Wednesday, May 20, 2020 7:54 AM
> To: main@ap-gto.groups.io
> Subject: Re: [ap-gto] APCC Pro 1.8.1.1 update #APCC
>
> Ray, when do you expect to have a fix?
>
> > On May 20, 2020, at 10:45 AM, Ray Gralak <groups3@...> wrote:
> >
> > Hi Bill,
> >
> > If you have a CP3 it's best that you stay with 1.8.0.9 until the next release. In 1.8.1.x a change was made to
> make the sign of the tracking rates consistent with what external programs expect, but it seems like it doesn't work
> with the CP3 because of an unexpected firmware difference between it and the CP4/5. Sorry, it wasn't discovered
> before 1.8.1.x was released. I usually don't have enough time to test with the CP3 under dark skies any more.
> >
> > -Ray Gralak
> > Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
> > Author of PEMPro V3:  https://www.ccdware.com
> > Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver
> >
> >> -----Original Message-----
> >> From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Bill Conrad
> >> Sent: Tuesday, May 19, 2020 8:51 PM
> >> To: main@ap-gto.groups.io
> >> Subject: [ap-gto] APCC Pro 1.8.1.1 update #APCC
> >>
> >> I have been using APCC Pro 1.8.0.9 with V2 5.30.10 on a AP1600-CP3 mount. I have a pointing model and
> have
> >> been running with Enable Pointing Correction and Enable Tracking Correction. When I updated to APCC Pro
> >> 1.8.1.1 I had to turn off Enable Tracking Correction as the rates seemed wrong (could not track a star). Also, on
> >> pier flip I had to abort with the scope pointing way below the horizon, then got it to successfully park back to
> park 4.
> >> After restoring 1.8.0.9 everything worked properly as before. I don't currently have log files to post. Any help
> would
> >> be appreciated. Thanks.
> >>
> >
> >
> >
> >
>
>




Re: APCC Pro 1.8.1.1 update #APCC

 
Edited

Where do you find these versions - 1.8.0.9 and 1.8.0.11?  Are they developer versions?

All I can find is "APCC Pro - Public Release Version      March 7, 2020    APCC Pro v1.8.0.5".

EDIT: Never mind, I see under Help there is a "Check for updates...".  I'm a brand-new user of APCC.

SECOND EDIT: What I found in the manual earlier, and now at home trying firsthand, doesn't work.  From v1.8.0.5, the "Check for updates" says "No updates to APCC are available". Why is that?

Also, the APCC window is always on top of all other windows.  Can that be changed?


Re: Mount recommendation for TEC 180FL with FLI 16803 + FW #Mach2GTO

Bill Long
 

Why would you not consider the dew shield in the length? For critical imaging application a single *cable* and its location is something considered (not only for snag purposes) so a heavier piece of metal on the front of the scope is important not to forget as well. 

There is no free lunch in imaging at all. Consider everything, double check everything, dot all your i's and cross all your t's... etc etc. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Terri Zittritsch <theresamarie11@...>
Sent: Wednesday, May 20, 2020 4:17 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mount recommendation for TEC 180FL with FLI 16803 + FW #Mach2GTO
 
On Tue, May 19, 2020 at 06:11 PM, uncarollo2 <chris1011@...> wrote:
I am guiding and doing unguided imaging with an AP160 scope (27lb tube) which has 1200mm focal length. The scope is quite robust with a heavy 4" focuser. Overall system length with extended dewcap and camera is 58", weight I'm guessing at around 48 lb (which includes the camera and dovetail system). The scope is balanced with 64lb worth of counterweight and counterweight bar. The mount is on a very light weight Losmandy tripod, which is definitely not recommended for serious imaging, but it works for me in the observatory. I have measured damping times of between 1.5 to 2 seconds, depending on where the scope is pointed. Most of that is because of the tripod which torques and twists pretty easily. The mount guides this setup quite easily and doesn't really tax anything. The weak link is of course my tripod. If this setup were mounted on a concrete pillar, the damping times would most likely be less than a second.
 
I have not seen a TEC 180, don't know the dimensions and weighs involved. I suppose if it is used with a robust tripod or pier, the mount would have no problem slewing it around. The bearings are heavy enough to hold any kind of weight, and normal tracking doesn't really stress the gear teeth. I would lower the max slew speed to 1000x, down from 1800x. If the mount doesn't catch a lot of wind, it would most likely guide very accurately. I've imaged in gusty wind conditions with the 160 and had no problem guiding.
 
Just make sure there are no dangling wires off the back of the scope because that represents quite a bit of force at the gearwheel. Every ounce of cable drag is multiplied 10x at the gear teeth. A disturbance of 1 arc sec at the gears is only 0.4 microns of  gear wheel motion at the teeth.
Yes Roland, understand.  I did go out and measure the length of my own setup and estimated a 180mm at focus.  I don't think it's fair to include the dew shield in a length calculation of weight unless it was overly heavy, and the TEC ones I don't think are.   The lens cell is where the weight is on one end.    And I use lightweight CMOS cameras, not the FLI/SBIG monsters that I see some use.    But agree and suspect 50" is optimistic and maybe more like 52-54" for the 180mm (not including dew shield extension).
Maybe the 180 is more appropriate for a permanent installation anyway. 

Terri




Re: APCC Pro 1.8.1.1 update #APCC

Ray Gralak
 

Ray, when do you expect to have a fix?
I believe I have a fix already, but I need some clear skies to test it.

So, hopefully within a few days.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver


-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Greg Salyer
Sent: Wednesday, May 20, 2020 7:54 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] APCC Pro 1.8.1.1 update #APCC

Ray, when do you expect to have a fix?

On May 20, 2020, at 10:45 AM, Ray Gralak <groups3@gralak.com> wrote:

Hi Bill,

If you have a CP3 it's best that you stay with 1.8.0.9 until the next release. In 1.8.1.x a change was made to
make the sign of the tracking rates consistent with what external programs expect, but it seems like it doesn't work
with the CP3 because of an unexpected firmware difference between it and the CP4/5. Sorry, it wasn't discovered
before 1.8.1.x was released. I usually don't have enough time to test with the CP3 under dark skies any more.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Bill Conrad
Sent: Tuesday, May 19, 2020 8:51 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] APCC Pro 1.8.1.1 update #APCC

I have been using APCC Pro 1.8.0.9 with V2 5.30.10 on a AP1600-CP3 mount. I have a pointing model and
have
been running with Enable Pointing Correction and Enable Tracking Correction. When I updated to APCC Pro
1.8.1.1 I had to turn off Enable Tracking Correction as the rates seemed wrong (could not track a star). Also, on
pier flip I had to abort with the scope pointing way below the horizon, then got it to successfully park back to
park 4.
After restoring 1.8.0.9 everything worked properly as before. I don't currently have log files to post. Any help
would
be appreciated. Thanks.



Re: APCC Pro 1.8.1.1 update #APCC

Greg Salyer
 

Ray, when do you expect to have a fix?

On May 20, 2020, at 10:45 AM, Ray Gralak <groups3@gralak.com> wrote:

Hi Bill,

If you have a CP3 it's best that you stay with 1.8.0.9 until the next release. In 1.8.1.x a change was made to make the sign of the tracking rates consistent with what external programs expect, but it seems like it doesn't work with the CP3 because of an unexpected firmware difference between it and the CP4/5. Sorry, it wasn't discovered before 1.8.1.x was released. I usually don't have enough time to test with the CP3 under dark skies any more.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Bill Conrad
Sent: Tuesday, May 19, 2020 8:51 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] APCC Pro 1.8.1.1 update #APCC

I have been using APCC Pro 1.8.0.9 with V2 5.30.10 on a AP1600-CP3 mount. I have a pointing model and have
been running with Enable Pointing Correction and Enable Tracking Correction. When I updated to APCC Pro
1.8.1.1 I had to turn off Enable Tracking Correction as the rates seemed wrong (could not track a star). Also, on
pier flip I had to abort with the scope pointing way below the horizon, then got it to successfully park back to park 4.
After restoring 1.8.0.9 everything worked properly as before. I don't currently have log files to post. Any help would
be appreciated. Thanks.



Re: APCC Pro 1.8.1.1 update #APCC

Ray Gralak
 

Hi Bill,

If you have a CP3 it's best that you stay with 1.8.0.9 until the next release. In 1.8.1.x a change was made to make the sign of the tracking rates consistent with what external programs expect, but it seems like it doesn't work with the CP3 because of an unexpected firmware difference between it and the CP4/5. Sorry, it wasn't discovered before 1.8.1.x was released. I usually don't have enough time to test with the CP3 under dark skies any more.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Bill Conrad
Sent: Tuesday, May 19, 2020 8:51 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] APCC Pro 1.8.1.1 update #APCC

I have been using APCC Pro 1.8.0.9 with V2 5.30.10 on a AP1600-CP3 mount. I have a pointing model and have
been running with Enable Pointing Correction and Enable Tracking Correction. When I updated to APCC Pro
1.8.1.1 I had to turn off Enable Tracking Correction as the rates seemed wrong (could not track a star). Also, on
pier flip I had to abort with the scope pointing way below the horizon, then got it to successfully park back to park 4.
After restoring 1.8.0.9 everything worked properly as before. I don't currently have log files to post. Any help would
be appreciated. Thanks.


APCC Pro 1.8.1.1 update #APCC

Bill Conrad
 

I have been using APCC Pro 1.8.0.9 with V2 5.30.10 on a AP1600-CP3 mount. I have a pointing model and have been running with Enable Pointing Correction and Enable Tracking Correction. When I updated to APCC Pro 1.8.1.1 I had to turn off Enable Tracking Correction as the rates seemed wrong (could not track a star). Also, on pier flip I had to abort with the scope pointing way below the horizon, then got it to successfully park back to park 4. After restoring 1.8.0.9 everything worked properly as before. I don't currently have log files to post. Any help would be appreciated. Thanks.

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