Date   

Re: Meridian management

Joel Short
 

With SGP you don't have to worry about "minutes past meridian to flip"  SGP will never stop an exposure for something and will wait until the exposure is finished to issue a flip.  So in SGP just set your "Minutes past meridian to flip" to 0.  Let's say your exposures are 10min.  If the mount crosses the meridian at minute 2, the mount will track past the meridian for the remaining 8mins and after the exposure is complete SGP will issue the meridian flip.  Works perfectly and I've never done anything else.  
joel


Re: Meridian management

Marcelo Figueroa
 

What I do and it works perfectly well is to turn off the meridian limits in ACPP and let SGP take over. I usually use about 10 or 15 minutes past the meridian and ensure that the wait for meridian option is activated.
 


Re: Meridian management

KHursh
 

Thanks Andrea,

I am doing something slightly different, I think. I am trying to predict when the flip might occur so I can tell my imaging software what to do. APCC is set to flip at the meridian limits set in APCC, but that time will differ according to the DEC of the object I am imaging. You (I think) have already decided on a 45 minute delay, which is what I may ultimately do, but if my object is at a lowish declination I may not have to flip at all. I can play with my setup during the day and watch what it does at various declinations and write down when it approaches my limits (I should have done this when I set up my limits), but I am trying to ask if there is another way to predict the behavior


Re: Meridian management

Andrea Lucchetti
 

Hi Kevin, there is a similar thread from me about 1-2 weeks ago. I don’t comment here because I still have to practice what I have learnt. 
But if you are imaging with sgp I assume your problem is just to avoid loosing time at th meridian. If your frames are 600s, I think that a delay of 600s is enough to finish a frame and flip.


Meridian management

KHursh
 

I now have my Mach2 humming along pretty well. I have set up APPC Pro with horizons and meridians and a pointing and tracking model. Where I am stuck is with meridian behavior. I know that my mount can handle tracking past the meridian up to a point depending on where it is relative to my safety limits. My question is, with NINA or even SGPro, I have to tell the software, how long past the meridian to wait to flip so how do I predict this based on the Dec position of object I am imaging? Am I overthinking this? Should I just pick a relatively safe time, like 45 minutes, and flip there for all objects? TIA

Kevin


Another clear night for testing

Roland Christen
 

Howdy Astronuts,

We have had an unprecedented series of clear nights here due to a high pressure system that has stalled over the Midwest. Allowed me to do extensive testing of mounts and scopes this past week. High pressure means great transparency and also rapid cooling. This is what my 160 EDF refractor looked like last night around Midnight. Thick frost on the tube, the mount etc, but the lens remained clear. That dewshield really works, and that's without any sort of dew heater.

Hope to post a few snapshots of deep sky objects this weekend (just snapshots, nothing really good)

Rolando


--
Roland Christen
Astro-Physics


Re: Mach2 Keypad Availability

 

I have added a new section to the Software Updates page of our website for version 5.xxx and added a link to a document that discusses upgrading older keypads. Check it out

https://www.astro-physics.com/software-updates/

 

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 Marj Christen
Sent: Friday, December 04, 2020 10:25 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Yes, keypads with serial number 1568 and higher can download the new software. The function of FOC and RA DEC REV buttons has changed in the new program, so the buttons on the current keypads are labeled differently.  You can simply use your current button pad and memorize the new functions or will have the opportunity to upgrade the button pad for an additional charge. See our website:

https://www.astro-physics.com/keyvfk2

 

More details on this in the coming weeks.

 

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 David via groups.io
Sent: Thursday, December 03, 2020 9:27 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Will my current keypad (from my old Mach1, that I’m currently using with my 1100GTO) work with the new software update?

 

David

 

 

 

On Dec 3, 2020, at 8:45 PM, Marj Christen <marj@...> wrote:



We’ll have more comparative information when we are ready to release. One of the main advantages is that the startup routine is easier. It will also have some new features.

 

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 DFisch
Sent: Thursday, December 03, 2020 4:48 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Marj, is there any advantage to using the new keypad on an upgraded CP4 over the original hand pad.  I have both with a Mach 1 and a 1100GTO.  Thanks for any advice you might send my way.  Tom Fischer, INDy

 

Sent from Mail for Windows 10

 

From: Bill Long
Sent: Thursday, December 3, 2020 1:14 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Great update! Thrilled to get some new capabilities for the CP4. Great work!

 

<image001.png>

From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Marj Christen <marj@...>
Sent: Thursday, December 3, 2020 9:20 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Our first goal is to release the new firmware for the GTOCP4, which we are nearly ready to do. The keypad update will be available sometime after that. The manual needs to be updated for the GTOCP4 since some aspects are different.

 

It’s coming soon, hang in there.

 

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 Luke Leege
Sent: Thursday, December 03, 2020 9:02 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Any news on when the update will be available for current keypad owners?

 


Re: Mach2 Keypad Availability

 

Yes, keypads with serial number 1568 and higher can download the new software. The function of FOC and RA DEC REV buttons has changed in the new program, so the buttons on the current keypads are labeled differently.  You can simply use your current button pad and memorize the new functions or will have the opportunity to upgrade the button pad for an additional charge. See our website:

https://www.astro-physics.com/keyvfk2

 

More details on this in the coming weeks.

 

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 David via groups.io
Sent: Thursday, December 03, 2020 9:27 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Will my current keypad (from my old Mach1, that I’m currently using with my 1100GTO) work with the new software update?

 

David

 

 



On Dec 3, 2020, at 8:45 PM, Marj Christen <marj@...> wrote:



We’ll have more comparative information when we are ready to release. One of the main advantages is that the startup routine is easier. It will also have some new features.

 

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 DFisch
Sent: Thursday, December 03, 2020 4:48 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Marj, is there any advantage to using the new keypad on an upgraded CP4 over the original hand pad.  I have both with a Mach 1 and a 1100GTO.  Thanks for any advice you might send my way.  Tom Fischer, INDy

 

Sent from Mail for Windows 10

 

From: Bill Long
Sent: Thursday, December 3, 2020 1:14 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Great update! Thrilled to get some new capabilities for the CP4. Great work!

 

<image001.png>

From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Marj Christen <marj@...>
Sent: Thursday, December 3, 2020 9:20 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Our first goal is to release the new firmware for the GTOCP4, which we are nearly ready to do. The keypad update will be available sometime after that. The manual needs to be updated for the GTOCP4 since some aspects are different.

 

It’s coming soon, hang in there.

 

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 Luke Leege
Sent: Thursday, December 03, 2020 9:02 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Any news on when the update will be available for current keypad owners?

 


Re: Multi-star guiding

Terri Zittritsch
 

Your skies must be way better than mine, or the multi-star aspect of the Maxim guiding somehow average out the seeing across  the three stars for you.    I need to read up on this to understand how it takes advantage of the multiple stars and my guess is some kind of averaging which can filter out seeing to some extent. 
I just picked up a full frame 60mp ASI camera with filterwheel and OAG.    I plan to try the OAG but have had limited success in the past.  I do have a lodestar which is the guide camera I'd use with this kind of setup due to its sensitivity.     I really enjoy the flexibility and FOV fo the guidescope, but maybe I have some amount of error as a result of the differential flex.    The precision movement of the mach2 makes it a joy to use.


Terri


Re: Capacity check on AP 1100

Worsel
 

Chris

Thanks!  I can build it with that info.

Bryan


Re: Another Recommendation of the Ridgid Tool Cart for transporting the AP900/1100

M Hambrick
 

Here are the cases I put together for my 1100 Mount. The case for the Dec axis is a work in progress.


Re: Capacity check on AP 1100

Christopher Erickson
 

I have a machine shop...

However a long ADM dovetail bar combined with one or two ADM dovetail brackets and one or two XY stage dovetail brackets, combined with a drill press and some bits, 1/4-20 or 3/8-16 taps will do the job.

Or any competent local machine shop.

Or order a long ADM dovetail bar and have it shipped to me. I will drill and tap the right holes in the right places and then mail it to you.

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


On Thu, Dec 3, 2020, 6:48 PM Worsel via groups.io <bryancashion=yahoo.com@groups.io> wrote:
Chris

The only 3-way tandem bar I am aware of is Robin Casaday's Triad which is no longer made.  Do you have another with which you have good experience?

THANKS!

Bryan


Re: [ap-ug] Multi-star guiding

richard payne
 

James, I have a Staraid, I met the designer in Namibia last year. A very nice item,
the pitfall is no dithering is possible. I will guide on around 20 stars, It uses
a pad or phone to control. It can be a bit finicky to connect . It
is more in line of a highly evolved ST-4. It does guide quite well though.
Richard

On Dec 3, 2020, at 10:29 AM, Dale Ghent <daleg@elemental.org> wrote:


It's a bit serendipitous that you've brought up this topic! Just yesterday, the PHD2 developers released a development preview build of PHD2 2.6.9 that has multi-star guiding implemented. It has been in testing for the past 2 or so months, and this is the first public release where it's available.

I used it for the first time last night during a 10 hour long dusk to dawn session, imaging StDr 56 and then M81/82 in Ha. Using APCC Pro with a fresh model and a recent PEC, my Mach1 guided in the mid-.40's arcsec RMS on average, and down into the mid-.30's whenever the wind that was present decided to completely die down. My pixel scale is 0.888 arcsec/px. I got fantastic stars and the only throw-aways were due to some cirrus clouds that blew through in the early morning.

I guide using a Baader Vario-Finder with ZWO ASI290MM-mini camera.

On Dec 3, 2020, at 12:06, Roland Christen via groups.io <chris1011=aol.com@groups.io> wrote:

Hello fellow Astronuts,

I've been meaning to try something new (for me) in my guided imaging. My setup consists of a 160EDF refractor on a mach2 encoder mount, a QSI-683WSG camera with off-axis pickup, and a Lodestar guide camera. I do all of my imaging with MaximDL Pro6 which has a multi star guiding function. Up to now I have used single star guiding and so i have to pick a guide star and let the guider do its thing. That's an extra step, and since I'm lazy I decided to let the program guide on the whole enchilada using the multi star guide method. So, how did that work out for a 20 minute exposure? Well see below:

Rolando
Notes:
The guiding was effortless, extremely accurate (partly thanks to the precision movements of the Mach2 mount), and required no thinking on my part. The Lodestar guide camera is really tops in my book. It picks up stars in every part of the sky, even in star-poor regions. My guide exposures are 5 seconds with 1 second delay between exposures. My Min Move for both axes was set to 0.02 seconds (which is 0.3 arc sec), and the aggressiveness was set to 8 out of 10 since the seeing was quite good. Outside temperature last night was 25 degrees F. The peak values reflect the dither moves between exposures in case you're wondering.

The California Nebula did not fit into my camera's field of view, oh well. Thus I'm in the market for a larger chip camera for Christmas

<dummyfile.0.part>







Re: Multi-star guiding

Worsel
 

Roland

MaximDL does have a Mosaic function, as an alternative to a whole new camera!  But then it is Christmas!

Bryan


Re: Capacity check on AP 1100

Worsel
 

Chris

The only 3-way tandem bar I am aware of is Robin Casaday's Triad which is no longer made.  Do you have another with which you have good experience?

THANKS!

Bryan


Re: Mach2 Keypad Availability

David
 

Will my current keypad (from my old Mach1, that I’m currently using with my 1100GTO) work with the new software update?

David




On Dec 3, 2020, at 8:45 PM, Marj Christen <marj@...> wrote:



We’ll have more comparative information when we are ready to release. One of the main advantages is that the startup routine is easier. It will also have some new features.

 

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 DFisch
Sent: Thursday, December 03, 2020 4:48 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Marj, is there any advantage to using the new keypad on an upgraded CP4 over the original hand pad.  I have both with a Mach 1 and a 1100GTO.  Thanks for any advice you might send my way.  Tom Fischer, INDy

 

Sent from Mail for Windows 10

 

From: Bill Long
Sent: Thursday, December 3, 2020 1:14 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Great update! Thrilled to get some new capabilities for the CP4. Great work!

 

<image001.png>

From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Marj Christen <marj@...>
Sent: Thursday, December 3, 2020 9:20 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Our first goal is to release the new firmware for the GTOCP4, which we are nearly ready to do. The keypad update will be available sometime after that. The manual needs to be updated for the GTOCP4 since some aspects are different.

 

It’s coming soon, hang in there.

 

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 Luke Leege
Sent: Thursday, December 03, 2020 9:02 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Any news on when the update will be available for current keypad owners?

 


Re: Mach2 Keypad Availability

DFisch
 

Thanks Marj ,I’m all about easier start up and I love the keypad, how to get another?

TJF Mobile
please excuse grammar and spell errors


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Marj Christen <marj@...>
Sent: Thursday, December 3, 2020 9:48:37 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach2 Keypad Availability
 

We’ll have more comparative information when we are ready to release. One of the main advantages is that the startup routine is easier. It will also have some new features.

 

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 DFisch
Sent: Thursday, December 03, 2020 4:48 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Marj, is there any advantage to using the new keypad on an upgraded CP4 over the original hand pad.  I have both with a Mach 1 and a 1100GTO.  Thanks for any advice you might send my way.  Tom Fischer, INDy

 

Sent from Mail for Windows 10

 

From: Bill Long
Sent: Thursday, December 3, 2020 1:14 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Great update! Thrilled to get some new capabilities for the CP4. Great work!

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Marj Christen <marj@...>
Sent: Thursday, December 3, 2020 9:20 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Our first goal is to release the new firmware for the GTOCP4, which we are nearly ready to do. The keypad update will be available sometime after that. The manual needs to be updated for the GTOCP4 since some aspects are different.

 

It’s coming soon, hang in there.

 

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 Luke Leege
Sent: Thursday, December 03, 2020 9:02 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Any news on when the update will be available for current keypad owners?

 


Re: Mach2 Keypad Availability

 

We’ll have more comparative information when we are ready to release. One of the main advantages is that the startup routine is easier. It will also have some new features.

 

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 DFisch
Sent: Thursday, December 03, 2020 4:48 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Marj, is there any advantage to using the new keypad on an upgraded CP4 over the original hand pad.  I have both with a Mach 1 and a 1100GTO.  Thanks for any advice you might send my way.  Tom Fischer, INDy

 

Sent from Mail for Windows 10

 

From: Bill Long
Sent: Thursday, December 3, 2020 1:14 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Great update! Thrilled to get some new capabilities for the CP4. Great work!

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Marj Christen <marj@...>
Sent: Thursday, December 3, 2020 9:20 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Our first goal is to release the new firmware for the GTOCP4, which we are nearly ready to do. The keypad update will be available sometime after that. The manual needs to be updated for the GTOCP4 since some aspects are different.

 

It’s coming soon, hang in there.

 

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 Luke Leege
Sent: Thursday, December 03, 2020 9:02 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Any news on when the update will be available for current keypad owners?

 


Re: Another Recommendation of the Ridgid Tool Cart for transporting the AP900/1100

rtlangland
 

Thanks for the information.
Bob Langland


On Dec 2, 2020, at 8:43 PM, john vogt <atmer@...> wrote:

Hi Bob,

The TTS bags are the small version. With two weights per bag their easily manageable.
I think the max per bag would be 2-18lb weights..

CS,
John


Re: Mach2 Keypad Availability

DFisch
 

Marj, is there any advantage to using the new keypad on an upgraded CP4 over the original hand pad.  I have both with a Mach 1 and a 1100GTO.  Thanks for any advice you might send my way.  Tom Fischer, INDy

 

Sent from Mail for Windows 10

 

From: Bill Long
Sent: Thursday, December 3, 2020 1:14 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Great update! Thrilled to get some new capabilities for the CP4. Great work!

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Marj Christen <marj@...>
Sent: Thursday, December 3, 2020 9:20 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Our first goal is to release the new firmware for the GTOCP4, which we are nearly ready to do. The keypad update will be available sometime after that. The manual needs to be updated for the GTOCP4 since some aspects are different.

 

It’s coming soon, hang in there.

 

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 Luke Leege
Sent: Thursday, December 03, 2020 9:02 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Any news on when the update will be available for current keypad owners?

 

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