Date   

Re: PemPro question

Ray Gralak
 

Hi Mike,

OK, thanks Ray. I would guess that somewhat longer
exposures 2" would be preferable than shorter say .5"...?
It really won't matter much as long as there is a star that PEMPro can find that is not too faint nor too bright (saturated) at the
exposure duration you select.

For the 6303E you might want to configure PEMPro (on the Setup tab) to use a min/max brightness of 10,000-20,000 and adjust exposure
duration appropriately. However, if the duration is longer than 5 seconds try slewing to a different star field.

Also, you should be okay measuring at Declination=0. If you are aiming directly toward the zenith there may be some heat in the air
path from your own telescope equipment.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): http://www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver

-----Original Message-----
From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]
Sent: Saturday, June 1, 2019 8:39 AM
To: ap-gto@yahoogroups.com
Subject: RE: [ap-gto] PemPro question



OK, thanks Ray. I would guess that somewhat longer exposures 2" would be
preferable than shorter say .5"...?

Another question...when I gather data, I try to shoot as high as possible
through as little atmosphere as possible. If I set the star declination
manually in the "settings summary window" will then the program see this as
the star declination? Calibration wizard runs at 0 dec and I wasn't sure if
changing it manually would set it properly after calibration...

Thanks

Mike J. Shade: mshade@q.com

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: <http://www.darksky.org/>
www.darksky.org

From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]
Sent: Saturday, June 01, 2019 7:48 AM
To: ap-gto@yahoogroups.com
Subject: RE: [ap-gto] PemPro question

Hi Mike,

Have a question about training a PEC curve on my 1600GTO.
Running a Planewave CDK 17/SBIG STL6303E camera.
Unbinned image scale is .63"/pixel.
I have always gathered data binned 1x, and have gathered date near the
zenith.
Curious if I might have better data to bin 2x2 (1.26"/pixel)?
Either would be okay, but the finer resolution (.63"/pixel) should provide
more accurate data for PEMPro to work with.

-Ray Gralak

-----Original Message-----
From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]
Sent: Saturday, June 1, 2019 6:32 AM
To: ap-gto@yahoogroups.com
Subject: [ap-gto] PemPro question



Have a question about training a PEC curve on my 1600GTO. Running a
Planewave CDK 17/SBIG STL6303E
camera. Unbinned image scale is .63"/pixel. I have always gathered data
binned 1x, and have gathered date
near the zenith. Curious if I might have better data to bin 2x2
(1.26"/pixel)?



Anyone have any thoughts or experience on this? Seeing at my current
location tends to run about 2",
sometimes a little worse, and sometimes a little better...



Still running PP 2.8.



Thanks.



Mike J. Shade: mshade@q.com

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
<http://www.darksky.org/>








Re: The future is coming

Roland Christen
 

Soon everyone will be yacking on their cellphones 24-7 anywhere in the world, even while being driven in their self-driving cars. And all that revenue will flow upwards to a few who can buy entire islands (like Lanai in Hawaii) so they can keep the riffraff out. With streetlight everywhere, one could at least escape to a mountain or rural area. With this new form of light pollution there is only one escape - the Moon or Mars. I wonder how long it will be before we are bombarded with outer space billboards?

Rolando



-----Original Message-----
From: donzantib@... [ap-gto]
To: ap-gto
Sent: Sat, Jun 1, 2019 1:56 pm
Subject: [ap-gto] Re: The future is coming



Great example as to when progress stops becoming progress and is destructive..... just disgusting.  


Re: The future is coming

thefamily90 Phillips
 

Oh come on. Global warming? No, just a hot summer.


From: ap-gto@... <ap-gto@...> on behalf of Robert Sinitiere bobstar9@... [ap-gto] <ap-gto@...>
Sent: Saturday, June 1, 2019 2:41:38 PM
To: ap-gto@...
Subject: Re: [ap-gto] The future is coming
 
 

That’s just great.  Now, multi-billionaires really do own everything, including the night sky!  Looks like I will have to become a “near-Earth satellite imager!🤬🤬🤬


On Jun 1, 2019, at 12:38 PM, chris1011@... [ap-gto] <ap-gto@...> wrote:

 

And it doesn't look good for amateur astronomy.


My recent image of M101 was composed of 8 images, each 10 minutes long. Of the 8 frames, 6 of them have satellite streaks, one has two streaks and one went right thru the center of M101.

Besides that, we are now experiencing more cloudy skies due to higher global temperatures. Warmer air can hold more moisture and there is more evaporation from rising ocean temps.

Rolando


Re: The future is coming

Bruce Donzanti
 

Great example as to when progress stops becoming progress and is destructive..... just disgusting.  


Re: The future is coming

Robert Sinitiere <bobstar9@...>
 

That’s just great.  Now, multi-billionaires really do own everything, including the night sky!  Looks like I will have to become a “near-Earth satellite imager!🤬🤬🤬


On Jun 1, 2019, at 12:38 PM, chris1011@... [ap-gto] <ap-gto@...> wrote:

 

And it doesn't look good for amateur astronomy.


My recent image of M101 was composed of 8 images, each 10 minutes long. Of the 8 frames, 6 of them have satellite streaks, one has two streaks and one went right thru the center of M101.

Besides that, we are now experiencing more cloudy skies due to higher global temperatures. Warmer air can hold more moisture and there is more evaporation from rising ocean temps.

Rolando


Re: The future is coming

Steve Reilly
 

Roland,

 

That’s a horrible marketing technique😉!

 

From: ap-gto@...
Sent: Saturday, June 1, 2019 1:38 PM
To: ap-gto@...; ap-ug@...
Subject: [ap-gto] The future is coming

 

 

And it doesn't look good for amateur astronomy.

 

 

My recent image of M101 was composed of 8 images, each 10 minutes long. Of the 8 frames, 6 of them have satellite streaks, one has two streaks and one went right thru the center of M101.

 

Besides that, we are now experiencing more cloudy skies due to higher global temperatures. Warmer air can hold more moisture and there is more evaporation from rising ocean temps.

 

Rolando


The future is coming

Roland Christen
 

And it doesn't look good for amateur astronomy.

https://www.nytimes.com/2019/06/01/science/starlink-spacex-astronomers.html?action=click&module=News&pgtype=Homepage

My recent image of M101 was composed of 8 images, each 10 minutes long. Of the 8 frames, 6 of them have satellite streaks, one has two streaks and one went right thru the center of M101.

Besides that, we are now experiencing more cloudy skies due to higher global temperatures. Warmer air can hold more moisture and there is more evaporation from rising ocean temps.

Rolando


Re: PemPro question

Mike Shade
 

OK, thanks Ray. I would guess that somewhat longer exposures 2" would be
preferable than shorter say .5"...?



Another question...when I gather data, I try to shoot as high as possible
through as little atmosphere as possible. If I set the star declination
manually in the "settings summary window" will then the program see this as
the star declination? Calibration wizard runs at 0 dec and I wasn't sure if
changing it manually would set it properly after calibration...



Thanks



Mike J. Shade: mshade@q.com

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: <http://www.darksky.org/>
www.darksky.org



From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]
Sent: Saturday, June 01, 2019 7:48 AM
To: ap-gto@yahoogroups.com
Subject: RE: [ap-gto] PemPro question





Hi Mike,

Have a question about training a PEC curve on my 1600GTO.
Running a Planewave CDK 17/SBIG STL6303E camera.
Unbinned image scale is .63"/pixel.
I have always gathered data binned 1x, and have gathered date near the
zenith.
Curious if I might have better data to bin 2x2 (1.26"/pixel)?
Either would be okay, but the finer resolution (.63"/pixel) should provide
more accurate data for PEMPro to work with.

-Ray Gralak

-----Original Message-----
From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]
Sent: Saturday, June 1, 2019 6:32 AM
To: ap-gto@yahoogroups.com
Subject: [ap-gto] PemPro question



Have a question about training a PEC curve on my 1600GTO. Running a
Planewave CDK 17/SBIG STL6303E
camera. Unbinned image scale is .63"/pixel. I have always gathered data
binned 1x, and have gathered date
near the zenith. Curious if I might have better data to bin 2x2
(1.26"/pixel)?



Anyone have any thoughts or experience on this? Seeing at my current
location tends to run about 2",
sometimes a little worse, and sometimes a little better...



Still running PP 2.8.



Thanks.



Mike J. Shade: mshade@q.com

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
<http://www.darksky.org/>




Star resolution in a 10 minute exposure (Re: New file uploaded to ap-gto)

Roland Christen
 

Hi All,

This is a screenshot of star resolution on a night of good seeing using PHD2 Lowpass2 algorithm with the Mach2 encoder mount. Out of the 8 frames that I shot, 6 of them reached this level of resolution, which is about 1.8 arc sec. That is the limit of resolution of the 130mm aperture.

Rolando


-----Original Message-----
From: ap-gto
To: ap-gto
Sent: Sat, Jun 1, 2019 10:30 am
Subject: [ap-gto] New file uploaded to ap-gto

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the ap-gto
group.

  File        : /Mach2 and PHD2 guiding with LowPass2 algorithm/Mach2-600secResolution.jpg
  Uploaded by : uncarollo2 <chris1011@...>
  Description : Resolution of a 10 minute exposure using PHD2 Lowpass2 algorithm and guide exposure of 4 seconds.

You can access this file at the URL:

To learn more about file sharing for your group, please visit:

Regards,

uncarollo2 <chris1011@...>


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New file uploaded to ap-gto

ap-gto@...
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the ap-gto
group.

File : /Mach2 and PHD2 guiding with LowPass2 algorithm/Mach2-600secResolution.jpg
Uploaded by : uncarollo2 <chris1011@aol.com>
Description : Resolution of a 10 minute exposure using PHD2 Lowpass2 algorithm and guide exposure of 4 seconds.

You can access this file at the URL:
https://groups.yahoo.com/neo/groups/ap-gto/files/Mach2%20and%20PHD2%20guiding%20with%20LowPass2%20algorithm/Mach2-600secResolution.jpg

To learn more about file sharing for your group, please visit:
https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398

Regards,

uncarollo2 <chris1011@aol.com>


Re: PemPro question

Roland Christen
 

It really doesn't matter if you bin or not. Pempro will ignore the noise component of the seeing. Just run enough cycles to average out the true PE curve if the seeing is not perfect.

Rolando



-----Original Message-----
From: 'Mike Shade' mshade@q.com [ap-gto]
To: ap-gto
Sent: Sat, Jun 1, 2019 8:31 am
Subject: [ap-gto] PemPro question



Have a question about training a PEC curve on my 1600GTO.  Running a Planewave CDK 17/SBIG STL6303E camera.  Unbinned image scale is .63"/pixel.  I have always gathered data binned 1x, and have gathered date near the zenith.  Curious if I might have better data to bin 2x2 (1.26"/pixel)?
 
Anyone have any thoughts or experience on this?  Seeing at my current location tends to run about 2", sometimes a little worse, and sometimes a little better...
 
Still running PP 2.8.
 
Thanks.
 
Mike J. Shade: mshade@q.com
Mike J. Shade Photography:
 
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
 



Re: PemPro question

Ray Gralak
 

Hi Mike,

Have a question about training a PEC curve on my 1600GTO.
Running a Planewave CDK 17/SBIG STL6303E camera.
Unbinned image scale is .63"/pixel.
I have always gathered data binned 1x, and have gathered date near the zenith.
Curious if I might have better data to bin 2x2 (1.26"/pixel)?
Either would be okay, but the finer resolution (.63"/pixel) should provide more accurate data for PEMPro to work with.

-Ray Gralak

-----Original Message-----
From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]
Sent: Saturday, June 1, 2019 6:32 AM
To: ap-gto@yahoogroups.com
Subject: [ap-gto] PemPro question



Have a question about training a PEC curve on my 1600GTO. Running a Planewave CDK 17/SBIG STL6303E
camera. Unbinned image scale is .63"/pixel. I have always gathered data binned 1x, and have gathered date
near the zenith. Curious if I might have better data to bin 2x2 (1.26"/pixel)?



Anyone have any thoughts or experience on this? Seeing at my current location tends to run about 2",
sometimes a little worse, and sometimes a little better...



Still running PP 2.8.



Thanks.



Mike J. Shade: mshade@q.com

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 <http://www.darksky.org/>




PemPro question

Mike Shade
 

Have a question about training a PEC curve on my 1600GTO.  Running a Planewave CDK 17/SBIG STL6303E camera.  Unbinned image scale is .63"/pixel.  I have always gathered data binned 1x, and have gathered date near the zenith.  Curious if I might have better data to bin 2x2 (1.26"/pixel)?

 

Anyone have any thoughts or experience on this?  Seeing at my current location tends to run about 2", sometimes a little worse, and sometimes a little better...

 

Still running PP 2.8.

 

Thanks.

 

Mike J. Shade: mshade@q.com

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

 


Re: OT: Has my guide camera died?

Christopher Erickson
 

Try a new USB cable before assuming you have a bad camera.

Virus-free. www.avg.com

On Fri, May 31, 2019 at 3:26 PM 'Steven Reilly' sreilly24590@... [ap-gto] <ap-gto@...> wrote:


Mike,

 

If someone hasn’t mentioned yet call Bill Lynch at SBIG Repair  for his advice.

 

Bill Lynch – SBIG Service & Repair Center
(please note new address)
3769 Constellation Road, Unit D
Lompoc, CA  93436
Bill Lynch – email
Phone:  (805) 308-6979

 

Steve

 

 

From: ap-gto@... <ap-gto@...>
Sent: Friday, May 31, 2019 8:55 PM
To: ap-gto@...
Subject: [ap-gto] Re: OT: Has my guide camera died?

 

 

On 5/31/2019 2:29 PM, chris1011@... [ap-gto] wrote:
> Yes, that's happened to me. I finally closed down Maxim and restarted it
> and the problem disappeared. I don't think it's the camera, it happened
> on my Lodestar guider, and that camera has always worked properly.

Thanks, Roland. Sadly, the drifting tracking error has occurred in at
least four imaging sessions, with the observatory powered-off between. I
don't think I restarted MaxIm after I noticed the noise-only guide star
subframe.

I'll keep testing if the sky ever clears....

--- Mike




Virus-free. www.avg.com


Re: OT: Has my guide camera died?

Steve Reilly
 

Mike,

 

If someone hasn’t mentioned yet call Bill Lynch at SBIG Repair  for his advice.

 

Bill Lynch – SBIG Service & Repair Center
(please note new address)
3769 Constellation Road, Unit D
Lompoc, CA  93436
Bill Lynch – email
Phone:  (805) 308-6979

 

Steve

 

 

From: ap-gto@...
Sent: Friday, May 31, 2019 8:55 PM
To: ap-gto@...
Subject: [ap-gto] Re: OT: Has my guide camera died?

 

 

On 5/31/2019 2:29 PM, chris1011@... [ap-gto] wrote:
> Yes, that's happened to me. I finally closed down Maxim and restarted it
> and the problem disappeared. I don't think it's the camera, it happened
> on my Lodestar guider, and that camera has always worked properly.

Thanks, Roland. Sadly, the drifting tracking error has occurred in at
least four imaging sessions, with the observatory powered-off between. I
don't think I restarted MaxIm after I noticed the noise-only guide star
subframe.

I'll keep testing if the sky ever clears....

--- Mike


Re: OT: Has my guide camera died?

Mike Dodd
 

On 5/31/2019 2:29 PM, chris1011@aol.com [ap-gto] wrote:
Yes, that's happened to me. I finally closed down Maxim and restarted it
and the problem disappeared. I don't think it's the camera, it happened
on my Lodestar guider, and that camera has always worked properly.
Thanks, Roland. Sadly, the drifting tracking error has occurred in at least four imaging sessions, with the observatory powered-off between. I don't think I restarted MaxIm after I noticed the noise-only guide star subframe.

I'll keep testing if the sky ever clears....

--- Mike


Re: APCC and AP-V2 with multiple mounts

Stelios
 

Great! I have no intention of using multiple mounts at a time--the 2nd mount is the club's mount. 

Apparently regardless of whether I use APCC or not I will have to change the AP-V2 setup, but I don't expect that to be a problem. (Need to remember to change it back when I try to connect to my Mach1 again!!!)

Thanks for making it so easy and convenient! AP rocks!


Re: APCC and AP-V2 with multiple mounts

Howard Hedlund
 

You are welcome to use APCC on more than one mount, but you should only use it on one mount at a time without another license.  Unless both mounts are operating simultaneously, there is no problem.

The V2 driver can also be used on multiple mounts, but only one at a time on any single computer.   If you have two computers, you can run the driver simultaneously on both mounts.  There is not a licensing issue.

APCC allows you to save configurations for different setups.  You can have both a Mach1 setup and a 900 setup.  Just load the appropriate setup before connecting to the mount.

The driver doesn't allow for multiple setups, so you will need to edit the Telescope Setup dialog before connecting to the driver.  Since APCC is set to auto-connect the driver, you will want to set the driver's Telescope Setup BEFORE you start APCC.  Either George or I will be happy to assist you if needed.


Re: Imaging with PHD2 guiding (Re: New file uploaded to ap-gto)

Roland Christen
 

Hi Stephen,

It turns out that the best way to start the program is to first go to the Guiding Assistant and let it analyze the sky conditions, do a Dec backlash test and other stuff for about 3 - 4 minutes. Do it before twilight is finished and then just let the program set the parameters and start with those settings. Use Lowpass2 algorithm (seems to be the most stable), set Dec guide mode to Auto, set hysteresis to zero in RA, and start from there. See what you get. If Dec doesn't respond right away you can probably safely dial in a small amount of backlash comp, but I would start from zero.

The guiding assistant tells you a lot of good stuff, plus you can see whether you have reasonable polar alignment and whether you have your PEM turned on or not just by seeing the RA tracking while not being guided (takes about 6 - 7 minutes to see one complete worm cycle).

Rolando


Re: Imaging with PHD2 guiding (Re: New file uploaded to ap-gto)

Stephen Winston
 

Some awesome results again, Roland!  It looks like you have found the magic combination of settings for the Mach2 / PHD2 combo.

Once I get decent skies here again in San Jose I'll also be trying those settings with my (non-encoder) Mach1, to see how it compares to the default PHD2 settings.

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