Date   

Re: [ap-ug] The Beast is heading to Hawaii..

thefamily90 Phillips
 

Me as well!!

JimP 


From: main@ap-ug.groups.io <main@ap-ug.groups.io> on behalf of James Stone <jrs7r@...>
Sent: Thursday, October 14, 2021 7:58:43 AM
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; p14@... <p14@...>
Cc: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] [ap-ug] The Beast is heading to Hawaii..
 

For what it’s worth, I’ve seen some pretty impressive imaging recently coming from an RH305 / IMX455 chip combo. Seems like that is a well-matched configuration. Looking forward to seeing future images from the RH305’s Hawaii travels.

 

From: <main@ap-ug.groups.io> on behalf of "Roland Christen via groups.io" <chris1011@...>
Reply-To: "main@ap-ug.groups.io" <main@ap-ug.groups.io>
Date: Wednesday, October 13, 2021 at 11:36 PM
To: James Stone <jrs7r@...>, "main@ap-ug.groups.io" <main@ap-ug.groups.io>, "p14@..." <p14@...>
Cc: "main@ap-gto.groups.io" <main@ap-gto.groups.io>
Subject: Re: [ap-gto] [ap-ug] The Beast is heading to Hawaii..

 

Don't know yest. Most probably a full frame 35mm CMOS at some point.

 

Rolando

 

 

-----Original Message-----
From: James Stone <jrs7r@...>
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; p14@... <p14@...>
Cc: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Wed, Oct 13, 2021 6:45 pm
Subject: Re: [ap-gto] [ap-ug] The Beast is heading to Hawaii..

Can’t wait to see the images. What do you plan on using for an imaging train?

 

From: <main@ap-ug.groups.io> on behalf of "Roland Christen via groups.io" <chris1011@...>
Reply-To: "main@ap-ug.groups.io" <main@ap-ug.groups.io>
Date: Wednesday, October 13, 2021 at 7:35 PM
To: "p14@..." <p14@...>, "main@ap-ug.groups.io" <main@ap-ug.groups.io>
Cc: "main@ap-gto.groups.io" <main@ap-gto.groups.io>
Subject: Re: [ap-ug] The Beast is heading to Hawaii..

 

We have excellent transparency at our observatory and the sky is really dark. The seeing (star scintillation) is not always good, but the Honders is a medium focal length scope (1160mm) so it is ideal for semi-wide field objects. I intend to go extremely deep with it and will be using the fast optics to gather detail in very faint structures.

 

Rolando

 

-----Original Message-----
From: Pete Lardizabal <p14@...>
To: main@ap-ug.groups.io
Cc: main@ap-gto.groups.io
Sent: Wed, Oct 13, 2021 6:29 pm
Subject: Re: [ap-ug] The Beast is heading to Hawaii..

WOW!!! 

 

Should be the proper setting for the scope!

 

Looking forward to Pacific based Honders images. 

 

😎

 

Pete

 

On Oct 13, 2021, at 3:22 PM, Roland Christen via groups.io <chris1011@...> wrote:

... where it will gather photons and help to test software and hardware for AP. It has been cloudy here all month with no end in sight, so it is being shipped off to sunnier and warmer climes. My beautiful model is there for perspective to show just how big it is: 1600 mount with 120lb of counterweight and 305mm F3.8 Honders astrograph. Solid as a rock on its ATS pier. Hope to get some images in the coming week.

 

Rolando

 


APCC and SGPro Meridian Flip Issues #apcc #ascom_v2_driver #APCC #ASCOM_V2_Driver

Tom Zepf
 

Hi folks, I seem to be having issues with getting SGPro and APCC setup for successful meridian flips. In all cases, the mount stops tracking before the meridian limit is reached. There seem to be two issues:

  1. The time for SGPro to flip and the time for APCC limit reached seem to be off by 40 seconds or so in the wrong direction. See image #1 for the discrepancy.
  2. Regardless of #1 above, the mount faults an RA LIMIT about 9 minutes earlier than that.
Any help is much appreciated!

   Tom






Re: [ap-ug] The Beast is heading to Hawaii..

James Stone
 

For what it’s worth, I’ve seen some pretty impressive imaging recently coming from an RH305 / IMX455 chip combo. Seems like that is a well-matched configuration. Looking forward to seeing future images from the RH305’s Hawaii travels.

 

From: <main@ap-ug.groups.io> on behalf of "Roland Christen via groups.io" <chris1011@...>
Reply-To: "main@ap-ug.groups.io" <main@ap-ug.groups.io>
Date: Wednesday, October 13, 2021 at 11:36 PM
To: James Stone <jrs7r@...>, "main@ap-ug.groups.io" <main@ap-ug.groups.io>, "p14@..." <p14@...>
Cc: "main@ap-gto.groups.io" <main@ap-gto.groups.io>
Subject: Re: [ap-gto] [ap-ug] The Beast is heading to Hawaii..

 

Don't know yest. Most probably a full frame 35mm CMOS at some point.

 

Rolando

 

 

-----Original Message-----
From: James Stone <jrs7r@...>
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; p14@... <p14@...>
Cc: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Wed, Oct 13, 2021 6:45 pm
Subject: Re: [ap-gto] [ap-ug] The Beast is heading to Hawaii..

Can’t wait to see the images. What do you plan on using for an imaging train?

 

From: <main@ap-ug.groups.io> on behalf of "Roland Christen via groups.io" <chris1011@...>
Reply-To: "main@ap-ug.groups.io" <main@ap-ug.groups.io>
Date: Wednesday, October 13, 2021 at 7:35 PM
To: "p14@..." <p14@...>, "main@ap-ug.groups.io" <main@ap-ug.groups.io>
Cc: "main@ap-gto.groups.io" <main@ap-gto.groups.io>
Subject: Re: [ap-ug] The Beast is heading to Hawaii..

 

We have excellent transparency at our observatory and the sky is really dark. The seeing (star scintillation) is not always good, but the Honders is a medium focal length scope (1160mm) so it is ideal for semi-wide field objects. I intend to go extremely deep with it and will be using the fast optics to gather detail in very faint structures.

 

Rolando

 

-----Original Message-----
From: Pete Lardizabal <p14@...>
To: main@ap-ug.groups.io
Cc: main@ap-gto.groups.io
Sent: Wed, Oct 13, 2021 6:29 pm
Subject: Re: [ap-ug] The Beast is heading to Hawaii..

WOW!!! 

 

Should be the proper setting for the scope!

 

Looking forward to Pacific based Honders images. 

 

😎

 

Pete

 

On Oct 13, 2021, at 3:22 PM, Roland Christen via groups.io <chris1011@...> wrote:

... where it will gather photons and help to test software and hardware for AP. It has been cloudy here all month with no end in sight, so it is being shipped off to sunnier and warmer climes. My beautiful model is there for perspective to show just how big it is: 1600 mount with 120lb of counterweight and 305mm F3.8 Honders astrograph. Solid as a rock on its ATS pier. Hope to get some images in the coming week.

 

Rolando

 


Re: New JPL Format for Horizons Ephemeris #APCC - Format Causes Issue #APCC

dnakic@...
 

Ray, I did these steps and for some reason I'm getting the following error and cannot connect system.  I followed the steps you provided, with my inputs below.  When I selected the text, I'm highlighting all of it (top and bottom portion of text shown).  Appreciate you insight (I'm sure there is something that I did incorrectly).  Thanks!











to 




Re: RA Mesh adjustment for 2104 model Mach 1 GTO

nicholas
 

so this is a development.  Darn. I am taking things down and just discovered that after balancing I did not tighten up the RA clutches tonight at all. arggh. not sure how i missed that one. I feel it my obligation to share that because that would affect results I imagine. still the guided results seemed at least fair. 


Re: RA Mesh adjustment for 2104 model Mach 1 GTO

nicholas
 
Edited

a 2 min guided exposure, 152mm F8 w . 7 reducer.


Re: RA Mesh adjustment for 2104 model Mach 1 GTO

nicholas
 

 in case you are wondering the GA was from the main imaging scope but now guiding is being performed w the small guidescope.


Re: RA Mesh adjustment for 2104 model Mach 1 GTO

nicholas
 
Edited

I posted the GA ss above if that is what you mean.

there is this which Andrew generated of the test run n
I have not gotten to PEC yet. 

the attached Phd2 ss is from current guide about 25 minutes thereof ( bottom).


Re: RA Mesh adjustment for 2104 model Mach 1 GTO

Bill Long
 

The refractor is fine. 

What does GA say? Guided results? PEMPro analysis? 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of nicholas via groups.io <chironik@...>
Sent: Wednesday, October 13, 2021 11:31 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] RA Mesh adjustment for 2104 model Mach 1 GTO
 

[Edited Message Follows]

Here are some screenshots I handed the log from tonight to Andrew.  I followed the instructions but the guide star was low magnitude. Somehow I had issues with the main imaging camera locking on stars so I did auto select star but in the desired constellation, near Altair.

Maybe this refractor is a large load given the results?  

also often times I see an error message like "RA calibration failed star did not move enough."   
could that be it locked on to a hot-pixel,?

here is a log

https://openphdguiding.org/logs/dl/PHD2_logs_eFSo.zip


Re: RA Mesh adjustment for 2104 model Mach 1 GTO

nicholas
 
Edited

Here are some screenshots I handed the log from tonight to Andrew.  I followed the instructions but the guide star was low magnitude. Somehow I had issues with the main imaging camera locking on stars so I did auto select star but in the desired constellation, near Altair.

Maybe this refractor is a large load given the results?  

also often times I see an error message like "RA calibration failed star did not move enough."   
could that be it locked on to a hot-pixel,?

here is a log

https://openphdguiding.org/logs/dl/PHD2_logs_eFSo.zip


Re: GoTos

fernandorivera3
 

Chip the ultimate method to get rid of flexure from your C14, beyond removing the cheap Celestron orange dovetail, is to mount the scope to a Andy Homeyer scope cradle- they are expensive but built like a tank. Absolutely rock solid.

Fernando


Re: GoTos

weems@...
 

My 900 carries a C14 and 6” f9 side by side and generally gets within 10’ of the target (closer to 7’ when not into refraction near the horizon).  And it can slew from one side of the meridian to the other then be told to return to the starting object, and will get it within 1’.  The planets are a bit off, probably because of clock drift, as I haven’t set it since the DST change.  But It wasn’t close to that until I did a draft alignment for 30 minutes in each axis, and adjusted cone error to less than 1’. It’s on a 12” concrete pier, with a very short rat cage. I replaced the flexible Celestron dovetail with a Losmandy. Every mechanical connection is also really tightened up.

Chip


Re: [ap-ug] The Beast is heading to Hawaii..

michael mccann
 

I don’t know how well the riccardi-honders performance compares to the Canon ultra low reflection lenses, the key is having minimal reflection, which coupled with matched (or compensated to match ) cameras, they’re able to see fainter stars than even the largest telescopes. Fun project. I’d love to try what I call the poormans version of that, 4 or 6 scopes. But I need to learn more about how to analyze scopes for transmission and internal reflection.

Cheers


Re: [ap-ug] The Beast is heading to Hawaii..

Roland Christen
 

Lookie, their first setup used our old 600 mount:





-----Original Message-----
From: michael mccann via groups.io <mmccawsprojects@...>
To: main@ap-gto.groups.io
Sent: Wed, Oct 13, 2021 7:51 pm
Subject: Re: [ap-gto] [ap-ug] The Beast is heading to Hawaii..

Better results if same sky conditions.  


Cheers 


--
Roland Christen
Astro-Physics


Re: AP1100AE PHD2 guiding with wind

Roland Christen
 

Windscreen is most effective.

Rolando



-----Original Message-----
From: ap@... <ap@...>
To: main@ap-gto.groups.io
Sent: Wed, Oct 13, 2021 7:50 pm
Subject: [ap-gto] AP1100AE PHD2 guiding with wind

Been a lot of PHD2 discussion recently, so what's one more... 

Dry season is starting soon here with more clear skies, but it usually comes with some wind.

I realize the real fix for wind is a wind break, but some of us just have to be out in it... 

So far I am getting really good guiding, 0.20-0.30 if the wind is calm and the seeing good.  I've hit 0.18" at times for goodly periods.  Really good, and not very sensitive either, I have tried short exposures, long exposures, with a model, without a model. I am sure I could screw it up, but all the reasonable stuff just works.

But the season change brings me to the question: Is there anything you would recommend changing to respond to light wind, the kind that moves the OTA around a bit, say 3-8mph with a C11 and dew shield on it.  In particular do shorter exposures help, or do they fight the encoders?  Longer?  Bigger min moves? 

I do realize the encoders only "see" movement within the mount's mechanism, not shifts that also involve the tripod, etc.  And some of that movement is brief impulse that bounces back, and some may be an actual shift that guiding has to take out.  It's not a simple issue. 
That's why I am wondering if experience has any guidance for the best approach in calm vs windy?

My first inclination is do nothing, but there are folks out there who have probably seen and fought every problem so... advice?
Linwood

PS. And yes, when Is see a girl with a dog on a bicycle blowing past, I will bring the mount inside.

--
Roland Christen
Astro-Physics


Re: [ap-ug] The Beast is heading to Hawaii..

Roland Christen
 

Maybe four 8 incher R-H, or four 6 inch short focus refractors. Light grasp would be comparable.

Rolando

-----Original Message-----
From: michael mccann via groups.io <mmccawsprojects@...>
To: main@ap-gto.groups.io
Sent: Wed, Oct 13, 2021 7:17 pm
Subject: Re: [ap-gto] [ap-ug] The Beast is heading to Hawaii..

I’m so thinking mini-dragonfly project. Can’t that mount handle 3 or 4 Riccardi-Honders scopes? My dream project!






--
Roland Christen
Astro-Physics


Re: [ap-ug] The Beast is heading to Hawaii..

Roland Christen
 

Don't know yest. Most probably a full frame 35mm CMOS at some point.

Rolando


-----Original Message-----
From: James Stone <jrs7r@...>
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; p14@... <p14@...>
Cc: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Wed, Oct 13, 2021 6:45 pm
Subject: Re: [ap-gto] [ap-ug] The Beast is heading to Hawaii..

Can’t wait to see the images. What do you plan on using for an imaging train?
 
From: <main@ap-ug.groups.io> on behalf of "Roland Christen via groups.io" <chris1011@...>
Reply-To: "main@ap-ug.groups.io" <main@ap-ug.groups.io>
Date: Wednesday, October 13, 2021 at 7:35 PM
To: "p14@..." <p14@...>, "main@ap-ug.groups.io" <main@ap-ug.groups.io>
Cc: "main@ap-gto.groups.io" <main@ap-gto.groups.io>
Subject: Re: [ap-ug] The Beast is heading to Hawaii..
 
We have excellent transparency at our observatory and the sky is really dark. The seeing (star scintillation) is not always good, but the Honders is a medium focal length scope (1160mm) so it is ideal for semi-wide field objects. I intend to go extremely deep with it and will be using the fast optics to gather detail in very faint structures.
 
Rolando
 
-----Original Message-----
From: Pete Lardizabal <p14@...>
To: main@ap-ug.groups.io
Cc: main@ap-gto.groups.io
Sent: Wed, Oct 13, 2021 6:29 pm
Subject: Re: [ap-ug] The Beast is heading to Hawaii..
WOW!!! 
 
Should be the proper setting for the scope!
 
Looking forward to Pacific based Honders images. 
 
😎
 
Pete


On Oct 13, 2021, at 3:22 PM, Roland Christen via groups.io <chris1011@...> wrote:
... where it will gather photons and help to test software and hardware for AP. It has been cloudy here all month with no end in sight, so it is being shipped off to sunnier and warmer climes. My beautiful model is there for perspective to show just how big it is: 1600 mount with 120lb of counterweight and 305mm F3.8 Honders astrograph. Solid as a rock on its ATS pier. Hope to get some images in the coming week.
 
Rolando
 

--
Roland Christen
Astro-Physics


Re: APPM and ASTAP #APCC

Bill Conrad
 

Thanks Brent. I'll try that next clear sky.

BC


Re: [ap-ug] The Beast is heading to Hawaii..

michael mccann
 

Better results if same sky conditions.  


Cheers 


AP1100AE PHD2 guiding with wind

ap@CaptivePhotons.com
 

Been a lot of PHD2 discussion recently, so what's one more... 

Dry season is starting soon here with more clear skies, but it usually comes with some wind.

I realize the real fix for wind is a wind break, but some of us just have to be out in it... 

So far I am getting really good guiding, 0.20-0.30 if the wind is calm and the seeing good.  I've hit 0.18" at times for goodly periods.  Really good, and not very sensitive either, I have tried short exposures, long exposures, with a model, without a model. I am sure I could screw it up, but all the reasonable stuff just works.

But the season change brings me to the question: Is there anything you would recommend changing to respond to light wind, the kind that moves the OTA around a bit, say 3-8mph with a C11 and dew shield on it.  In particular do shorter exposures help, or do they fight the encoders?  Longer?  Bigger min moves? 

I do realize the encoders only "see" movement within the mount's mechanism, not shifts that also involve the tripod, etc.  And some of that movement is brief impulse that bounces back, and some may be an actual shift that guiding has to take out.  It's not a simple issue. 

That's why I am wondering if experience has any guidance for the best approach in calm vs windy?

My first inclination is do nothing, but there are folks out there who have probably seen and fought every problem so... advice?

Linwood

PS. And yes, when Is see a girl with a dog on a bicycle blowing past, I will bring the mount inside.

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