Date   

Re: Mount coordinates change while autoguiding

Roland Christen
 


Back in RAPAS, Polaris was noticeably out of place.
Yes, and then you adjust the RAPAS via the 3 collimation screws to put Polaris where it should be, and then you have a RAPAS that can recreate that perfect polar alignment in about 10 seconds next time you set up. That's the whole idea about the collimation screws on the RAPAS.

Rolando


-----Original Message-----
From: Michael Dolenga via groups.io <giroditalia@...>
To: main@ap-gto.groups.io
Sent: Tue, Jul 21, 2020 1:44 pm
Subject: Re: [ap-gto] Mount coordinates change while autoguiding

I got the Polemaster camera, and used it with SharpCap. After careful alignment with the RAPAS, sharpcap reported an error of about 5 arcminutes, which it categorizes as "poor." A few minutes with the app and it was down to 11 arc seconds error. Back in RAPAS, Polaris was noticeably out of place. The imaging session I did last night showed at most 5 arc seconds of drift per hour over a 4 hour period, so clearly there was an improvement, although that's anecdotal at best. And I don't see any improvement on the images, I think we're seeing limited here in Seattle. Actually, cloud limited. :)

Michael



On Saturday, July 18, 2020, 09:39:18 AM PDT, uncarollo2 <chris1011@...> wrote:



Btw, is a 1 minute DEC drift over 1 hour at a declination of about 40 degrees good/bad?
The mount itself doesn't move in Dec, so all drift is due to external errors (atmospheric refraction, differential flexure, polar misalignment). Most Dec drift is simple polar misalignment in azimuth when pointing overhead and altitude misalignment when pointing towards the east or west.

Is 1 minute drift good/bad - I think that's bordering on excessive and can be easily fixed using PEMPro drift alignment. Good alignment back in the "good ol' days" was 1 arc sec drift per 5 minutes. That's back in my day when we used to walk uphill to school thru 5 foot snow drifts, and uphill again home.

Rolando


-----Original Message-----
From: Michael Dolenga via groups.io <giroditalia@...>
To: main@ap-gto.groups.io
Sent: Sat, Jul 18, 2020 11:27 am
Subject: Re: [ap-gto] Mount coordinates change while autoguiding

You do need to recalibrate after flipping to account for orthogonality errors. And you'd have to slew to the same coordinates reported by the mount just before you flip, which differ from the target. It's not really an issue once you understand what is happening, and luckily the software I'm using, NINA, does a plate solve after flipping and re-slews, if necessary, to your original target coordinates which it has preserved. I raise the question because until I understood how NINA worked, I thought the drift on the mount was problematic.

When I was doing flips manually, I would calibrate before flipping to reset the mount's coordinates to match my target, as Ray suggested.

Btw, is a 1 minute DEC drift over 1 hour at a declination of about 40 degrees good/bad? 1850 mm scope. Polar aligned using RAPAS.


Michael



On Saturday, July 18, 2020, 09:06:43 AM PDT, uncarollo2 <chris1011@...> via groups.io <chris1011@...> wrote:



The meridian flip automation i use includes a re-centering of the target via plate solve, which I think is pretty common
When you are autoguiding the target is always centered so no plate solve is needed. Because of the guide commands, the internal co-ordinates slowly drift, so at the end of the session you simply do a recal which brings the actual and commanded co-ordinates back together.

Rolando


-----Original Message-----
From: Brian Valente <bvalente@...>
To: main@ap-gto.groups.io
Sent: Sat, Jul 18, 2020 10:52 am
Subject: Re: [ap-gto] Mount coordinates change while autoguiding

>>> If I leave the mount running with no autoguider connected at all, RA and DEC remain constant, as I would expect. 

But likely the fov would have change significantly, so your target would have drifted out of frame

 >>>This confounds automated meridian flips because the mount "thinks" it is pointed somewhere other than where it actually is. Often, the difference is too slight to be significance, but sometimes not. 

The meridian flip automation i use includes a re-centering of the target via plate solve, which I think is pretty common


Brian


On Sat, Jul 18, 2020 at 8:48 AM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:

It seems as though the autoguider commands are being interpreted as user initiated slews.
Yes, autoguider commands are essentially user initiated moves which cause the mount to go to a new coordinate every time a move command is issued. This is universal and applies to every mount ever made, whether AP mount or other brands. They will all do the same.

Rolando


-----Original Message-----
From: Michael Dolenga via groups.io <giroditalia=yahoo.com@groups.io>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Sat, Jul 18, 2020 9:31 am
Subject: [ap-gto] Mount coordinates change while autoguiding

I've noticed that my 900GTO's coordinates, as reported by ASCOM (latest version of the driver) change over a session where I am autoguiding. This occurs whether using MaximDL or NINA/PhD. In both cases, I am configured to send autoguider commands via the ASCOM driver rather than a separate ST4 cable.

This confounds automated meridian flips because the mount "thinks" it is pointed somewhere other than where it actually is. Often, the difference is too slight to be significance, but sometimes not. 

As an example, last night I was doing 30 minute shots of the Crescent Nebula. Over one hour, as reported by the RA/DEC fields written into the FITS header, I saw a difference of 6 minutes, 4 seconds in RA and 1 minute 7 seconds in DEC.

If I leave the mount running with no autoguider connected at all, RA and DEC remain constant, as I would expect.

Is this expected behavior or am I possibly missing some configuration option? It seems as though the autoguider commands are being interpreted as user initiated slews.


Michael


--
Brian 



Brian Valente


Re: NGC6960

Stuart <stuart.j.heggie@...>
 

Nice work Mike! Big target - you did well to squeeze it in!


On Tue, 21 Jul 2020 at 13:45, Mike Dodd <mike@...> wrote:
I've long been attracted to the Veil Nebula, but never could image
NGC6960, The Witch's Broom, because my old ST-8 CCD camera bloomed the
bright star. But my current ASI1600MCP one-shot color CMOS camera
doesn't bloom, so now this target is in play.

Recently I managed to acquire nearly 5 hours of data over three rare
clear nights, and hope to get another 3-4 hours when the sky clears
again. Here's what I have so far:
<http://astronomy.mdodd.com/nebulae-17.html>

I rotated the camera to capture as much of the "broom" as possible on
the sensor, corner-to-corner. I never knew there was so much faint H-a
nebulosity close-by. Maybe additional data will reveal more.

Comments and suggestions welcome.

TMB-130SS APO @ f/7 on an AP1200.

--- Mike
http://astronomy.mdodd.com





--

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


Re: Mount coordinates change while autoguiding

Michael Dolenga
 

I got the Polemaster camera, and used it with SharpCap. After careful alignment with the RAPAS, sharpcap reported an error of about 5 arcminutes, which it categorizes as "poor." A few minutes with the app and it was down to 11 arc seconds error. Back in RAPAS, Polaris was noticeably out of place. The imaging session I did last night showed at most 5 arc seconds of drift per hour over a 4 hour period, so clearly there was an improvement, although that's anecdotal at best. And I don't see any improvement on the images, I think we're seeing limited here in Seattle. Actually, cloud limited. :)

Michael



On Saturday, July 18, 2020, 09:39:18 AM PDT, uncarollo2 <chris1011@...> wrote:



Btw, is a 1 minute DEC drift over 1 hour at a declination of about 40 degrees good/bad?
The mount itself doesn't move in Dec, so all drift is due to external errors (atmospheric refraction, differential flexure, polar misalignment). Most Dec drift is simple polar misalignment in azimuth when pointing overhead and altitude misalignment when pointing towards the east or west.

Is 1 minute drift good/bad - I think that's bordering on excessive and can be easily fixed using PEMPro drift alignment. Good alignment back in the "good ol' days" was 1 arc sec drift per 5 minutes. That's back in my day when we used to walk uphill to school thru 5 foot snow drifts, and uphill again home.

Rolando


-----Original Message-----
From: Michael Dolenga via groups.io <giroditalia@...>
To: main@ap-gto.groups.io
Sent: Sat, Jul 18, 2020 11:27 am
Subject: Re: [ap-gto] Mount coordinates change while autoguiding

You do need to recalibrate after flipping to account for orthogonality errors. And you'd have to slew to the same coordinates reported by the mount just before you flip, which differ from the target. It's not really an issue once you understand what is happening, and luckily the software I'm using, NINA, does a plate solve after flipping and re-slews, if necessary, to your original target coordinates which it has preserved. I raise the question because until I understood how NINA worked, I thought the drift on the mount was problematic.

When I was doing flips manually, I would calibrate before flipping to reset the mount's coordinates to match my target, as Ray suggested.

Btw, is a 1 minute DEC drift over 1 hour at a declination of about 40 degrees good/bad? 1850 mm scope. Polar aligned using RAPAS.


Michael



On Saturday, July 18, 2020, 09:06:43 AM PDT, uncarollo2 <chris1011@...> via groups.io <chris1011@...> wrote:



The meridian flip automation i use includes a re-centering of the target via plate solve, which I think is pretty common
When you are autoguiding the target is always centered so no plate solve is needed. Because of the guide commands, the internal co-ordinates slowly drift, so at the end of the session you simply do a recal which brings the actual and commanded co-ordinates back together.

Rolando


-----Original Message-----
From: Brian Valente <bvalente@...>
To: main@ap-gto.groups.io
Sent: Sat, Jul 18, 2020 10:52 am
Subject: Re: [ap-gto] Mount coordinates change while autoguiding

>>> If I leave the mount running with no autoguider connected at all, RA and DEC remain constant, as I would expect. 

But likely the fov would have change significantly, so your target would have drifted out of frame

 >>>This confounds automated meridian flips because the mount "thinks" it is pointed somewhere other than where it actually is. Often, the difference is too slight to be significance, but sometimes not. 

The meridian flip automation i use includes a re-centering of the target via plate solve, which I think is pretty common


Brian


On Sat, Jul 18, 2020 at 8:48 AM uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:

It seems as though the autoguider commands are being interpreted as user initiated slews.
Yes, autoguider commands are essentially user initiated moves which cause the mount to go to a new coordinate every time a move command is issued. This is universal and applies to every mount ever made, whether AP mount or other brands. They will all do the same.

Rolando


-----Original Message-----
From: Michael Dolenga via groups.io <giroditalia=yahoo.com@groups.io>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Sat, Jul 18, 2020 9:31 am
Subject: [ap-gto] Mount coordinates change while autoguiding

I've noticed that my 900GTO's coordinates, as reported by ASCOM (latest version of the driver) change over a session where I am autoguiding. This occurs whether using MaximDL or NINA/PhD. In both cases, I am configured to send autoguider commands via the ASCOM driver rather than a separate ST4 cable.

This confounds automated meridian flips because the mount "thinks" it is pointed somewhere other than where it actually is. Often, the difference is too slight to be significance, but sometimes not. 

As an example, last night I was doing 30 minute shots of the Crescent Nebula. Over one hour, as reported by the RA/DEC fields written into the FITS header, I saw a difference of 6 minutes, 4 seconds in RA and 1 minute 7 seconds in DEC.

If I leave the mount running with no autoguider connected at all, RA and DEC remain constant, as I would expect.

Is this expected behavior or am I possibly missing some configuration option? It seems as though the autoguider commands are being interpreted as user initiated slews.


Michael


--
Brian 



Brian Valente


Re: Tracking w/ Passil 4 polar alignment

Roland Christen
 

Even if the polar alignment is spot on you will need to use a PEM curve.  I'm guessing here because you did not provide enough information to go on. For instance, what direction did the trailing go, where in the sky did you image. There is no information on how the scope is being held, or the camera, or whether there is focuser sag. Lots of things can add up to give poor results.

Rolando



-----Original Message-----
From: Wiggins, Rick <rickwiggins@...>
To: main@ap-gto.groups.io
Sent: Tue, Jul 21, 2020 12:58 pm
Subject: Re: [ap-gto] Tracking w/ Passil 4 polar alignment

Hi Roland,
I did setup using the pasill4 polar scope and got good alignment on the two stars through the polar scope. I did not use a PE curve. Do you think slight smearing in 25 secs given that rough setup is reasonable or should it be better?
Thanks, Rick


1100GTO

KHursh
 

I am probably very low on the list as I got on only a few months ago, but any idea when the next production run of the 1100 is? Thanks and clear skies!


Re: Tracking w/ Passil 4 polar alignment

Christopher Erickson
 

Depending on the lens focal lengths, personally I have found polar alignments with a PASILL4 to be more than accurate enough for astrophotography with SLR's ranging up to 30 minute exposures for wide fields.

Could be flexure someplace. If both cams show the same defects then it is something they both have in common.

Long cam lenses can exhibit a lot of flexure and sag, depending on how and where they are attached to the plate. And on their design and quality.

Turn off image stabilization too. It often has trouble with very dim scenes. And turn off autofocus, of course.

I hope this helps.

-Christopher Erickson
Observatory engineer
Waikoloa, HI 96738
www.summitkinetics.com
   


On Tue, Jul 21, 2020, 7:59 AM Wiggins, Rick <rickwiggins@...> wrote:
Hi Roland,
I did setup using the pasill4 polar scope and got good alignment on the two stars through the polar scope. I did not use a PE curve. Do you think slight smearing in 25 secs given that rough setup is reasonable or should it be better?
Thanks, Rick


Re: Mach2 Keypad

 

The list is verrrrry long. However, it is easy for folks to casually click the Notify Me button.  We don’t know how many will order when contacted.   Sorry I don’t have a good answer. Enjoy your 900 in the meantime.

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Michael Dolenga via groups.io
Sent: Tuesday, July 21, 2020 1:05 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad

 

Marj,

 

That sounds like a plan and it seems like Dean had something similar.

 

Should I ask on the ETA for the mount to ship? Or do I not want to know? :)

 

 

Michael

 

 

 

On Tuesday, July 21, 2020, 10:44:05 AM PDT, Marj Christen <marj@...> wrote:

 

 

Michael,

 

Our ADATRI tripod adapter can probably be attached to the top of the tripod as long as it has a flat surface. You may need to drill a few holes. We can visit that when/if you order the mount.

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Michael Dolenga via groups.io
Sent: Monday, July 20, 2020 9:29 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad

 

Hi Marj, nice to hear from you as well. That did the trick, I added myself to the list.

 

I have one of those apparently rare Rob Miller tripods from around 2011 when I got the 900GTO; strong and light, I'm sure one could construct an adapter. 

 

Michael

 

 

On Monday, July 20, 2020, 07:13:23 PM PDT, Marj Christen <marj@...> wrote:

 

 

Hello Michael,

 

So nice to hear from you.

 

The keypad from 2011 will work with the Mach2, however it will have to be updated to the upcoming v5 software and you will probably want to replace the keypad buttons with a new version.

 

The Mach2 base is the same as the 400, 600E or Mach1 base. It is smaller than the 900. However, there may be a way to use the same tripod.

 

The Notify Me button only shows up when click the button on the bottom of the screen on our website to accept cookies from our website.  You can click into the banner on the bottom to specify your preferences, but the cookies must be allowed. The reason is that you will be entering your email as part of the Notify Me process. So, we must have your permission to do this. I know it sounds silly, but that’s the way it works.

 

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Michael Dolenga via groups.io
Sent: Monday, July 20, 2020 7:25 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad

 

Opposite question, will a 2011 keypad sold with a new 900GTO work with the Mach2?

 

Another question, is the Mach 2 base the same as a 2011 series 900GTO base? Basically, can I use the same tripod?

 

Last question, how exactly do you get on the waiting list for a Mach 2? I don't see a "notify me" button anywhere on the page for the mount.

 

Michael

 

 

 

On Wednesday, June 24, 2020, 10:32:45 AM PDT, uncarollo2 <chris1011@...> via groups.io <chris1011@...> wrote:

 

 

The newest keypad version will work with CP4/CP5 controllers.

 

Rolando

 

 

 

-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Wed, Jun 24, 2020 11:53 am
Subject: Re: [ap-gto] Mach2 Keypad

Will the new update be backward compatible with the older mounts as well?  For instance, if I update my existing keypad to work with the CP5, then can it also be used with my CP3 equipped 900GTO?
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Mach2 Keypad

Michael Dolenga
 

Marj,

That sounds like a plan and it seems like Dean had something similar.

Should I ask on the ETA for the mount to ship? Or do I not want to know? :)


Michael



On Tuesday, July 21, 2020, 10:44:05 AM PDT, Marj Christen <marj@...> wrote:


Michael,

 

Our ADATRI tripod adapter can probably be attached to the top of the tripod as long as it has a flat surface. You may need to drill a few holes. We can visit that when/if you order the mount.

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Michael Dolenga via groups.io
Sent: Monday, July 20, 2020 9:29 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad

 

Hi Marj, nice to hear from you as well. That did the trick, I added myself to the list.

 

I have one of those apparently rare Rob Miller tripods from around 2011 when I got the 900GTO; strong and light, I'm sure one could construct an adapter. 

 

Michael

 

 

On Monday, July 20, 2020, 07:13:23 PM PDT, Marj Christen <marj@...> wrote:

 

 

Hello Michael,

 

So nice to hear from you.

 

The keypad from 2011 will work with the Mach2, however it will have to be updated to the upcoming v5 software and you will probably want to replace the keypad buttons with a new version.

 

The Mach2 base is the same as the 400, 600E or Mach1 base. It is smaller than the 900. However, there may be a way to use the same tripod.

 

The Notify Me button only shows up when click the button on the bottom of the screen on our website to accept cookies from our website.  You can click into the banner on the bottom to specify your preferences, but the cookies must be allowed. The reason is that you will be entering your email as part of the Notify Me process. So, we must have your permission to do this. I know it sounds silly, but that’s the way it works.

 

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Michael Dolenga via groups.io
Sent: Monday, July 20, 2020 7:25 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad

 

Opposite question, will a 2011 keypad sold with a new 900GTO work with the Mach2?

 

Another question, is the Mach 2 base the same as a 2011 series 900GTO base? Basically, can I use the same tripod?

 

Last question, how exactly do you get on the waiting list for a Mach 2? I don't see a "notify me" button anywhere on the page for the mount.

 

Michael

 

 

 

On Wednesday, June 24, 2020, 10:32:45 AM PDT, uncarollo2 <chris1011@...> via groups.io <chris1011@...> wrote:

 

 

The newest keypad version will work with CP4/CP5 controllers.

 

Rolando

 

 

 

-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Wed, Jun 24, 2020 11:53 am
Subject: Re: [ap-gto] Mach2 Keypad

Will the new update be backward compatible with the older mounts as well?  For instance, if I update my existing keypad to work with the CP5, then can it also be used with my CP3 equipped 900GTO?
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Tracking w/ Passil 4 polar alignment

Wiggins, Rick
 

Hi Roland,
I did setup using the pasill4 polar scope and got good alignment on the two stars through the polar scope. I did not use a PE curve. Do you think slight smearing in 25 secs given that rough setup is reasonable or should it be better?
Thanks, Rick


NGC6960

Mike Dodd
 

I've long been attracted to the Veil Nebula, but never could image NGC6960, The Witch's Broom, because my old ST-8 CCD camera bloomed the bright star. But my current ASI1600MCP one-shot color CMOS camera doesn't bloom, so now this target is in play.

Recently I managed to acquire nearly 5 hours of data over three rare clear nights, and hope to get another 3-4 hours when the sky clears again. Here's what I have so far: <http://astronomy.mdodd.com/nebulae-17.html>

I rotated the camera to capture as much of the "broom" as possible on the sensor, corner-to-corner. I never knew there was so much faint H-a nebulosity close-by. Maybe additional data will reveal more.

Comments and suggestions welcome.

TMB-130SS APO @ f/7 on an AP1200.

--- Mike
http://astronomy.mdodd.com


Re: Mach2 Keypad

 

Michael,

 

Our ADATRI tripod adapter can probably be attached to the top of the tripod as long as it has a flat surface. You may need to drill a few holes. We can visit that when/if you order the mount.

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Michael Dolenga via groups.io
Sent: Monday, July 20, 2020 9:29 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad

 

Hi Marj, nice to hear from you as well. That did the trick, I added myself to the list.

 

I have one of those apparently rare Rob Miller tripods from around 2011 when I got the 900GTO; strong and light, I'm sure one could construct an adapter. 

 

Michael

 

 

On Monday, July 20, 2020, 07:13:23 PM PDT, Marj Christen <marj@...> wrote:

 

 

Hello Michael,

 

So nice to hear from you.

 

The keypad from 2011 will work with the Mach2, however it will have to be updated to the upcoming v5 software and you will probably want to replace the keypad buttons with a new version.

 

The Mach2 base is the same as the 400, 600E or Mach1 base. It is smaller than the 900. However, there may be a way to use the same tripod.

 

The Notify Me button only shows up when click the button on the bottom of the screen on our website to accept cookies from our website.  You can click into the banner on the bottom to specify your preferences, but the cookies must be allowed. The reason is that you will be entering your email as part of the Notify Me process. So, we must have your permission to do this. I know it sounds silly, but that’s the way it works.

 

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Michael Dolenga via groups.io
Sent: Monday, July 20, 2020 7:25 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad

 

Opposite question, will a 2011 keypad sold with a new 900GTO work with the Mach2?

 

Another question, is the Mach 2 base the same as a 2011 series 900GTO base? Basically, can I use the same tripod?

 

Last question, how exactly do you get on the waiting list for a Mach 2? I don't see a "notify me" button anywhere on the page for the mount.

 

Michael

 

 

 

On Wednesday, June 24, 2020, 10:32:45 AM PDT, uncarollo2 <chris1011@...> via groups.io <chris1011@...> wrote:

 

 

The newest keypad version will work with CP4/CP5 controllers.

 

Rolando

 

 

 

-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...>
To: main@ap-gto.groups.io
Sent: Wed, Jun 24, 2020 11:53 am
Subject: Re: [ap-gto] Mach2 Keypad

Will the new update be backward compatible with the older mounts as well?  For instance, if I update my existing keypad to work with the CP5, then can it also be used with my CP3 equipped 900GTO?
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Tracking w/ Passil 4 polar alignment

Roland Christen
 


I setup and aligned on Polaris and second star.
That routine is not good enough for polar alignment for imaging. You will either need to use a polar scope or other precision polar align method. You will also need to have a good PE correction curve loaded and turned on in order to get good RA tracking.

Rolando


-----Original Message-----
From: Wiggins, Rick <rickwiggins@...>
To: main@ap-gto.groups.io
Sent: Tue, Jul 21, 2020 11:06 am
Subject: [ap-gto] Tracking w/ Passil 4 polar alignment

Hi group,
Would someone comment on the Mach1 tracking capability with only visual polar alignment using the PASILL4.
I setup and aligned on Polaris and second star. I was using Cassidy double bar with two cameras on either side of the mount center. My 400mm lens and Canon RA were used to capture images. I got about 30% smearing of the stars at 25 sec exposures. I seem to recall doing better than this in the past; however, I’m usually using autoguider, so I’m not sure what I should expect. Thanks for any input.
Rick


Re: Mach1 and GTOCP4 Yellow Light STOP SENDING MASSIVE FILES

Mike Shade
 

Yea, drop it there are people here with slow connections and don't need 24mb of video.

 

Mike J. Shade

Mike J. Shade Photography:

mshadephotography.com

 

In War: Resolution

In Defeat: Defiance

In Victory: Magnanimity

In Peace: Goodwill

Sir Winston Churchill

Already, in the gathering dusk, a few of the stars are turning on their lights.

Vega, the brightest one, is now dropping towards the west.  Can it be half

a year since I watched her April rising in the east?  Low in the southwest

Antares blinks a sad farwell to fall...

Leslie Peltier, Starlight Nights

 

International Dark Sky Association: www.darksky.org

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Mikko Viljamaa
Sent: Monday, July 20, 2020 7:11 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach1 and GTOCP4 Yellow Light

 

OK so my happiness lasted for a week and now the issue is back. Or at least I assume (hope?) that this is related to the problem. 


The mount refused to connect today through the SGP and when I disconnected and connected the Ra cable the Ra motor started to make a grinding sound trying to rotate the axes without luck. I then tried the Dec cable and both ends of the new Y cable to Ra motor with the same grinding result. As it was getting dark I didn’t open the gearbox cover anymore tonight.

Let me know if the attached video doesn’t upload and I can drop it to google drive.


Thanks,

Mikko 


Tracking w/ Passil 4 polar alignment

Wiggins, Rick
 

Hi group,
Would someone comment on the Mach1 tracking capability with only visual polar alignment using the PASILL4.
I setup and aligned on Polaris and second star. I was using Cassidy double bar with two cameras on either side of the mount center. My 400mm lens and Canon RA were used to capture images. I got about 30% smearing of the stars at 25 sec exposures. I seem to recall doing better than this in the past; however, I’m usually using autoguider, so I’m not sure what I should expect. Thanks for any input.
Rick


Re: Comet NEOWISE/Milky way

Mike Dodd
 

On 7/21/2020 10:18 AM, Astrobob wrote:
Sorry about the dumb joke photo.
I thought it was good for a grin in this Covid-19 era. Thanks.

--- Mike


Re: Comet NEOWISE/Milky way

Astrobob
 

Sorry about the dumb joke photo.

 

Sent from Mail for Windows 10

 


Re: FITS Image Header Issues Using APPM-Help!

lmbrabec@...
 

Michael:  That's how I'm feeling also on Windows 10 updates.  I'd hate to go backwards and then have security issues, etc.  I'm going to stay at the 1909 version where I'm at for now.  I'm going to hold off on doing the version 2004 until I get this FITS issue resolved, then do it.

Ray:  I'm open to suggestions on trying to figure this out. Let me know your thoughts or if its possible to pm you to work through.  Thanks much in advance!  Scott


Re: FITS Image Header Issues Using APPM-Help!

Michael Hambrick <mike.hambrick@...>
 

Hi Scott

I would say that going back to the previous version of Windows should be the last resort, and I am not sure how to do that either. I have seen comments from several people on the forum (including Roland) stating that they have disabled the automatic Windows updates, but I am not sure that this is a good idea. As aggravating as these updates can be, they are usually done to fix some kind of bug or provide enhanced performance. It is the same for all of the astronomy software that we use. There are always bugs to be fixed or enhancements added. Otherwise, everything we run would still be on version 1.0.

Just make sure after every Windows update that you reboot your computer at least once before trying to run any of your astronomy related software.

Ray can probably give you better advice on whether the Windows updates are a problem. Sometimes these updates will restore default settings. One of the particularly aggravating settings is the USB Selective Suspend which was re-enabled in the Windows 1909 update. The instructions below came from the Diffraction Limited forum for MaxIm DL:





Best Regards

Michael Hambrick
ARLANXEO
TSR Global Manufacturing Support
PO Box 2000
Orange, TX 77631-2000
Phone: +1 (409) 882-2799
email: mike.hambrick@...


Re: Mach2 Keypad

Dean Jacobsen
 

On Mon, Jul 20, 2020 at 05:25 PM, Michael Dolenga wrote:
Another question, is the Mach 2 base the same as a 2011 series 900GTO base? Basically, can I use the same tripod?
Michael, my standard 900 mounting plate already had the three bolt pattern for the ADATRI tripod adapter.  It was just a matter of bolting the ADATRI onto my existing 900 plate.
 
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Can't connect to mount

Woody Schlom
 

Curtis,

 

That’s amazing.  My Keyspan hasn’t worked since Win-98 2nd Edition.  Of course, I gave up on it then too and haven’t tried it since.

 

I think Roland got confused and didn’t realize you have an old CP3.  He’s been living in CP4 and now CP5 land now for too long.

 

Woody

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of CurtisC via groups.io
Sent: Monday, July 20, 2020 9:41 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Can't connect to mount

 

This has been resolved.  The FTDI adapter is toast.  I dug out my old Keyspan adapter, and I can connect to the mount.  Thank you to everyone for your replies.  I'm mystified by Rolando's suggestion.

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