Date   

Re: The future is coming

Craig Anderson
 

...and, if you look at the reject high output frame from image integration (I use PI) , you get quite an shot of satellite trails. I did this with M106 and it was surprising to see how many had passed over a few nights worth of subframes :(


On Jun 1, 2019, at 5:09 PM, Stephen F Armen esarmen@... [ap-gto] <ap-gto@...> wrote:

 

Aquire as many frames as possible, dither, dither and median combine. That can work do deemphasize satellite trails.


Re: The future is coming

Shane Ramotowski
 

PixInsight already removes satellite tracks very well.  The ImageIntegration tool has multiple rejection options.  I simply reject anything that is more than 2 standard deviations from the mean, using Linear Fit Clipping.  Enable the rejection masks and you will see all of those tracks that just went away!

When I shot the Flame Nebula, I bet I had 40 geo syncs float through the field.  All went away during the integration step!

And, yes, I shoot lots of frames.  Hard to beat lots of photons for good SNR...

- Shane


Re: The future is coming

st_armen2
 

Aquire as many frames as possible, dither, dither and median combine. That can work do deemphasize satellite trails.


Re: The future is coming

George OBrien
 

Since satellite tracks are very straight and should be easily detected in the image field, what’s the possibility of the folks at PixInsight or Diffraction Limited adding a software function to subtract tracks?

George
From: chris1011@... [ap-gto]
Sent: Saturday, June 1, 2019 4:21 PM
To: ap-gto@...
Subject: Re: [ap-gto] Re: The future is coming

 
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] <ap-gto@...>
To: ap-gto <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: 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@... [mailto:ap-gto@...]
Sent: Saturday, June 1, 2019 8:39 AM
To: ap-gto@...
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@... [mailto:ap-gto@...]
Sent: Saturday, June 01, 2019 7:48 AM
To: ap-gto@...
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@... [mailto:ap-gto@...]
Sent: Saturday, June 1, 2019 6:32 AM
To: ap-gto@...
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@... [mailto:ap-gto@...]
Sent: Saturday, June 01, 2019 7:48 AM
To: ap-gto@...
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@... [mailto:ap-gto@...]
Sent: Saturday, June 1, 2019 6:32 AM
To: ap-gto@...
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@...>
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@...>


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@... [mailto:ap-gto@...]
Sent: Saturday, June 1, 2019 6:32 AM
To: ap-gto@...
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@... [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