Date   

Re: APPM and color cameras #APCC

Dean Jacobsen
 


Re: APPM and color cameras #APCC

Ray Gralak
 

Hi Dean,

I haven't tried a color camera, but to keep memory utilization down, whatever camera application used should be configured to prevent debayering the raw camera data into a FITS image with three color planes. Color is not used for plate-solving, so leaving the raw data as is will be fine.

-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 Dean Jacobsen
Sent: Tuesday, August 18, 2020 6:52 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] APPM and color cameras #APCC

No responses so I guess it must have been a dumb question. :-)
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ <https://www.astrobin.com/users/deanjacobsen/>


Re: Exposure comparisons with CCD cameras

Len Fulham
 

Liam et al, Re Dome heat plumes.

I tried A/C in my domed obs and I was not very satisfied with the result. It seemed the cold air inside the dome still was interacting with the external air causing issues. It was also expensive over time. When the A/C died, I decided to try a different tack - I installed a 18" variable speed exhaust fan in one wall. I turned it on high coming into evening and slowed it down later (so it was not too noisy). Drawing air into the dome seemed to stop plumes from forming and I experienced better seeing. On the other hand, there was a exhaust plume on one side of the observatory which did affect seeing in that direction (A/C, if running at night, are worse!).

The fan was reversible, I tried it blowing into the obs, that was seriously worse.

At a different site I had a slide off roof, the seeing was almost always better there. I also enjoyed the open aesthetic of the slide off roof, always more fun (mostly visual).

I think a dome wins when you want light/wind shielding esp imaging or for remote operation.

Len.


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

Michael 'Mikey' Mangieri
 

Based upon what Bill Long and others have said it looks like modeling even with a non-permanent pier is really something to consider. Too bad I let the discount period lapse on getting APCCPro as I didn’t think it was something I would need until after I get my obsy.  

Mikey


On Aug 19, 2020, at 2:21 AM, Bill Long <bill@...> wrote:


It doesn't have an ASCOM Observing Conditions driver, so no.


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Tom Blahovici <tom.va2fsq@...>
Sent: Tuesday, August 18, 2020 10:04 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] A couple of doubts about modeling and about not using guiding. #Mach2GTO #APCC
 
Are focuser temperature probes supported like to Moonlite NightCrawlers?
Tom


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

Bill Long
 

It doesn't have an ASCOM Observing Conditions driver, so no.


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Tom Blahovici <tom.va2fsq@...>
Sent: Tuesday, August 18, 2020 10:04 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] A couple of doubts about modeling and about not using guiding. #Mach2GTO #APCC
 
Are focuser temperature probes supported like to Moonlite NightCrawlers?
Tom


Re: Correction to a CN post

Tom Blahovici
 

No, the model in the CP4.


Re: Correction to a CN post

Konstantin von Poschinger
 

What? If you mean the Model in the hand pad, No. 

Konstantin

Am 19.08.2020 um 06:49 schrieb Tom Blahovici <tom.va2fsq@...>:

Hi,
Is this now available?


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

Tom Blahovici
 

Are focuser temperature probes supported like to Moonlite NightCrawlers?
Tom


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

Dean Jacobsen
 

Yes we did.  :-)  And it is on the “to do” list, but haven’t been able to get out to the observatory yet.  I will pester you if I can’t figure it out.
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

 

Dean i realize we may have talked about this a few posts ago :)

I do think your skybox can generate a boltwood file, you just need to figure out how to store that to an accessible folder for your computer

Happy to share what we've done here offlist if you like

On Tue, Aug 18, 2020 at 9:50 PM Dean Jacobsen <deanjacobsen@...> wrote:
On Tue, Aug 18, 2020 at 09:42 PM, Brian Valente wrote:
FYI if you are at a shared remote obs they often have a boltwood file available from their environmental sensors that is available for use, and that also work for APPM
Yes, I put up a Sky Alert box when we installed the roof system.  It is on our network as an Ethernet device. I haven’t been able to test whether I can connect up with it through ASCOM yet because the weather hasn’t been cooperating this cycle.
 
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 



--
Brian 



Brian Valente


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

Dean Jacobsen
 

On Tue, Aug 18, 2020 at 09:42 PM, Brian Valente wrote:
FYI if you are at a shared remote obs they often have a boltwood file available from their environmental sensors that is available for use, and that also work for APPM
Yes, I put up a Sky Alert box when we installed the roof system.  It is on our network as an Ethernet device. I haven’t been able to test whether I can connect up with it through ASCOM yet because the weather hasn’t been cooperating this cycle.
 
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: Correction to a CN post

Tom Blahovici
 

Hi,
Is this now available?


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

 

FYI if you are at a shared remote obs they often have a boltwood file available from their environmental sensors that is available for use, and that also work for APPM 

this is what we use at Obstech (chile) as our MGBOx is not currently working correctly



On Tue, Aug 18, 2020 at 9:38 PM Dean Jacobsen <deanjacobsen@...> wrote:

[Edited Message Follows]

Thanks Bill and Brian.  This is something that I want to incorporate then.

We get pretty significant temperature changes throughout the night so keeping track of the difference between when the model was made and then during imaging might be something I would want to do.
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 



--
Brian 



Brian Valente


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

Joseph Beyer
 

Thanks for confirming.

On Tue, Aug 18, 2020 at 9:09 PM Brian Valente <bvalente@...> wrote:
That will work for model building, but you need the current temperature as you are imaging, so you really need a way where the temperature is updated on a consistent basis.

the modeling adjusts based on temp at time of modeling and current temp when imaging

On Tue, Aug 18, 2020 at 8:56 PM Joseph Beyer <jcbeyer2001@...> wrote:
I don't own an environmental sensor that interfaces directly with my computer but I manually enter current temperature and barometric pressure from my backyard weather station into the APCC-Pro Pointing Model tab when I run a model.  The data is pulled through to APPM and I assume used in the calculation of the pointing and tracking model.  Is this assumption correct?

On Tue, Aug 18, 2020 at 7:16 PM Bill Long <bill@...> wrote:
Per my chat with Ray, having accurate temperature data is THE most important thing. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Brian Valente <bvalente@...>
Sent: Tuesday, August 18, 2020 6:47 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] A couple of doubts about modeling and about not using guiding. #Mach2GTO #APCC
 
HI Marcelo

Temperature does have some impact on the modeling (talking with Ray on this) so you might consider having an environmental sensor in there like an MGBox V2

On Tue, Aug 18, 2020 at 6:17 PM Marcelo Figueroa via groups.io <marfig1970=yahoo.com@groups.io> wrote:
OK, thank you very much. Good to know. :)
 
My telescope is an Esprit 100, so I guess I don't need an atmospheric pressure detector at the moment.



--
Brian 



Brian Valente



--
Brian 



Brian Valente


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

Dean Jacobsen
 
Edited

Thanks Bill and Brian.  This is something that I want to incorporate then.

We get pretty significant temperature changes throughout the night so keeping track of the difference between when the model was made and then during imaging might be something I would want to do.
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

 

Dean

Ray is probably best to answer, but i've had long talks with him on this and yes, MGBox (or something similar) provides updated temperatures, and the APPM modeling takes the temperature into account when adjusting the tracking in real time

When Ray says temperature is important, i'm fairly certain the above is what he is referring to

On Tue, Aug 18, 2020 at 9:24 PM Dean Jacobsen <deanjacobsen@...> wrote:
If one were to employ a MGBox does the software adjust or update the model in real time as the temperature changes, and, if so, are these adjustments to the model updated into the tracking rate correction in real time?
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 



--
Brian 



Brian Valente


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

Bill Long
 

Yes there is an environment poll that APCC does. The sensor provided with the Pegasus Ultimate Powerbox v2 and Powerbox Advance (cheaper) works perfectly with APCC. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Dean Jacobsen <deanjacobsen@...>
Sent: Tuesday, August 18, 2020 9:24 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] A couple of doubts about modeling and about not using guiding. #Mach2GTO #APCC
 
If one were to employ a MGBox does the software adjust or update the model in real time as the temperature changes, and, if so, are these adjustments to the model updated into the tracking rate correction in real time?
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

Dean Jacobsen
 

If one were to employ a MGBox does the software adjust or update the model in real time as the temperature changes, and, if so, are these adjustments to the model updated into the tracking rate correction in real time?
--
Dean Jacobsen
http://astrophoto.net/wp/
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

 

That will work for model building, but you need the current temperature as you are imaging, so you really need a way where the temperature is updated on a consistent basis.

the modeling adjusts based on temp at time of modeling and current temp when imaging

On Tue, Aug 18, 2020 at 8:56 PM Joseph Beyer <jcbeyer2001@...> wrote:
I don't own an environmental sensor that interfaces directly with my computer but I manually enter current temperature and barometric pressure from my backyard weather station into the APCC-Pro Pointing Model tab when I run a model.  The data is pulled through to APPM and I assume used in the calculation of the pointing and tracking model.  Is this assumption correct?

On Tue, Aug 18, 2020 at 7:16 PM Bill Long <bill@...> wrote:
Per my chat with Ray, having accurate temperature data is THE most important thing. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Brian Valente <bvalente@...>
Sent: Tuesday, August 18, 2020 6:47 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] A couple of doubts about modeling and about not using guiding. #Mach2GTO #APCC
 
HI Marcelo

Temperature does have some impact on the modeling (talking with Ray on this) so you might consider having an environmental sensor in there like an MGBox V2

On Tue, Aug 18, 2020 at 6:17 PM Marcelo Figueroa via groups.io <marfig1970=yahoo.com@groups.io> wrote:
OK, thank you very much. Good to know. :)
 
My telescope is an Esprit 100, so I guess I don't need an atmospheric pressure detector at the moment.



--
Brian 



Brian Valente



--
Brian 



Brian Valente


Re: A couple of doubts about modeling and about not using guiding. #APCC #Mach2GTO

Bill Long
 

Correct. That method should work fine. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Joseph Beyer <jcbeyer2001@...>
Sent: Tuesday, August 18, 2020 8:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] A couple of doubts about modeling and about not using guiding. #Mach2GTO #APCC
 
I don't own an environmental sensor that interfaces directly with my computer but I manually enter current temperature and barometric pressure from my backyard weather station into the APCC-Pro Pointing Model tab when I run a model.  The data is pulled through to APPM and I assume used in the calculation of the pointing and tracking model.  Is this assumption correct?

On Tue, Aug 18, 2020 at 7:16 PM Bill Long <bill@...> wrote:
Per my chat with Ray, having accurate temperature data is THE most important thing. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Brian Valente <bvalente@...>
Sent: Tuesday, August 18, 2020 6:47 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] A couple of doubts about modeling and about not using guiding. #Mach2GTO #APCC
 
HI Marcelo

Temperature does have some impact on the modeling (talking with Ray on this) so you might consider having an environmental sensor in there like an MGBox V2

On Tue, Aug 18, 2020 at 6:17 PM Marcelo Figueroa via groups.io <marfig1970=yahoo.com@groups.io> wrote:
OK, thank you very much. Good to know. :)
 
My telescope is an Esprit 100, so I guess I don't need an atmospheric pressure detector at the moment.



--
Brian 



Brian Valente

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