Thanks Adam, This is the kind of info I am now understanding more as my experience with PI increases. Six months ago I could not understand much of the technicality of PI, but I could follow along and apply without understanding. Trial and error has been a huge influence when it comes to knowing what each parameter controls. With these instructional videos I am now getting the hang of PI and it is much less daunting to use. Thanks for your generosity.
Thanks for input on integration. Maybe you could do a video on Clip low Range and what exactly that does. Some "books" say check it for DARKS etc and some say uncheck.
Watch my video on Selective Rejection. It explains how to take advantage of Clip low range. If you have zeros in your data- likely you need to understand why! Is it oversubtraction of some sort because of a calibration error? Maybe you need a Pedestal? (See that video as well.)
So are we saying if we don't use NSG, and just run WBPP with ESD "Studentized" Rejection in Integration instead of Auto selected, this will be better for ridding satellite trails?
There is no one right answer. It could be that you do not get enough rejection on the low end (for example) and Winsorized Sigma Clipping is better (since it is a symmetric rejection method). You always need to be flexible and adjust parameters. Just as there are no defaults- the a corollary is that there is no fix set of parameters that *always* works. All of that being said, if you have sufficient number of frames (20+)... ESD sure works well.
It is under the ImageINtegration section: www.adamblockstudios.com/articles/extreme-studentized-deviate-pixel-rejection-esd There is also a PixTV episode on this.
Just in time video my last data session of M31, the first 5 light frames all had satellites. While it was a first for me, it wasn't my goal for the evening.
sigma rejection explained...light goes on. "And still they gaz'd and still the wonder grew, That one small head could carry all he knew." (from The Village Schoolmaster by Oliver Goldsmith)
Love this but all I can do is collect data right now. I don't have a good desktop yet. I would definitely join. This is great content and I want to be as good as possible at processing my images. I'm really chomping at the bit with all the galaxies I captured in West Texas. I have a decent rig with the Orion HDX110 mount, Orion 10" Newt astrograph and WO Zenithstar 61mm but im still using the Canon T7i to capture my data. Momma says make due with what you have for now Daddy, but im setting aside a little here and there for a dedicated camera and filter wheel. That's a whole other can of worms to open. (Choosing a dedicated astrophotography camera). I noticed ZWO is tearing it up as far as CMOS cams go. Less expensive as well but I still want a CCD with full frame sensor eventually. I want to be able to capture all the flux nebulae between targets. I mean shooting one target over several days. Anyway, sorry for the rant. Im definitely interested. I love talking tech and physics. Thanks for the great content. Peace out!✌
Don- Actually you can't blame Elon and others for this entirely. When you were observing in that part of Orion- you are just below the Celestial Equator. I can predict you therefore live in the Northern Hemisphere because this is where a vast number of Geostationary (and objects at GEO) are found. The particular satellites that disturbed you... would have been there even before Elon..before you had anyone specifically to blame. :) You were looking at a Geo highway of satellites.
@@AdamBlock Thanks for pointing that out. It's a bloody highway! Feels better to make it personal though given what things might look like when there are tens of thousands of internet sats up there!! :( I am struggling though trying to get all the trails out using NSG and ESD. I'll jump onto the ABS thread from here. And thanks for the YT vids, much appreciated. Working through the fundamentals curriculum at the moment.
If I could give 10 thumbs up, I would immediately have done. Thanks for sharing this information. I truly will become a member soon.
Thanks Adam,
This is the kind of info I am now understanding more as my experience with PI increases. Six months ago I could not understand much of the technicality of PI, but I could follow along and apply without understanding. Trial and error has been a huge influence when it comes to knowing what each parameter controls.
With these instructional videos I am now getting the hang of PI and it is much less daunting to use. Thanks for your generosity.
Just became a member! I've enjoyed your RUclips videos and looking forward to more.
Thanks for the great video. I now have your website bookmarked.
Very, very helpful thanks for making this! Also made me 100% sold on joining your website, as soon as I pay off all this expensive astro gear 😂.
Thanks!
Another good video Adam and I like the cat.
Great info Adam.
Awesome, thanks for the great info! I enjoy the thought process you take us through when solving these problems.
great info, thanks for sharing.
Thanks for this Adam! Great stuff!
Thank you!
Thanks for input on integration. Maybe you could do a video on Clip low Range and what exactly that does. Some "books" say check it for DARKS etc and some say uncheck.
Watch my video on Selective Rejection. It explains how to take advantage of Clip low range. If you have zeros in your data- likely you need to understand why! Is it oversubtraction of some sort because of a calibration error? Maybe you need a Pedestal? (See that video as well.)
Oook, I already know what my Christmas present will be.
Great video!
Excellent job Adam and yes, we do watch and I have subscribed. :)
Thank you!
So are we saying if we don't use NSG, and just run WBPP with ESD "Studentized" Rejection in Integration instead of Auto selected, this will be better for ridding satellite trails?
There is no one right answer. It could be that you do not get enough rejection on the low end (for example) and Winsorized Sigma Clipping is better (since it is a symmetric rejection method). You always need to be flexible and adjust parameters. Just as there are no defaults- the a corollary is that there is no fix set of parameters that *always* works. All of that being said, if you have sufficient number of frames (20+)... ESD sure works well.
Where on your website is the Update: ESD Pixel Rejection page found?
It is under the ImageINtegration section: www.adamblockstudios.com/articles/extreme-studentized-deviate-pixel-rejection-esd There is also a PixTV episode on this.
A much appreciated video, thank you.
Just in time video my last data session of M31, the first 5 light frames all had satellites. While it was a first for me, it wasn't my goal for the evening.
I will try this when I image Orion / M42 next month. Thanks
45 minute exposures?
sigma rejection explained...light goes on.
"And still they gaz'd and still the wonder grew,
That one small head could carry all he knew." (from The Village Schoolmaster by Oliver Goldsmith)
*laugh* I don't explain it in this video...but I do to members of AdamBlockStudios.com
@@AdamBlock soon it will be Christmas
Another great video
Well, I need to become a member I guess 😁👍🏻
Love this but all I can do is collect data right now. I don't have a good desktop yet. I would definitely join. This is great content and I want to be as good as possible at processing my images. I'm really chomping at the bit with all the galaxies I captured in West Texas. I have a decent rig with the Orion HDX110 mount, Orion 10" Newt astrograph and WO Zenithstar 61mm but im still using the Canon T7i to capture my data. Momma says make due with what you have for now Daddy, but im setting aside a little here and there for a dedicated camera and filter wheel. That's a whole other can of worms to open. (Choosing a dedicated astrophotography camera). I noticed ZWO is tearing it up as far as CMOS cams go. Less expensive as well but I still want a CCD with full frame sensor eventually. I want to be able to capture all the flux nebulae between targets. I mean shooting one target over several days. Anyway, sorry for the rant. Im definitely interested. I love talking tech and physics. Thanks for the great content. Peace out!✌
OK... that intro... 😂😆😂
120 90s subs of IC2118 last night and MAYBE 6 of them didn't have a sat trail! Screw you Elon. And to think it's only going to get worse. Much worse.
Don- Actually you can't blame Elon and others for this entirely. When you were observing in that part of Orion- you are just below the Celestial Equator. I can predict you therefore live in the Northern Hemisphere because this is where a vast number of Geostationary (and objects at GEO) are found. The particular satellites that disturbed you... would have been there even before Elon..before you had anyone specifically to blame. :) You were looking at a Geo highway of satellites.
@@AdamBlock Thanks for pointing that out. It's a bloody highway! Feels better to make it personal though given what things might look like when there are tens of thousands of internet sats up there!! :( I am struggling though trying to get all the trails out using NSG and ESD. I'll jump onto the ABS thread from here. And thanks for the YT vids, much appreciated. Working through the fundamentals curriculum at the moment.
Great videos. Thank you