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31 July 2020 - Comet Registration video tutorial using APP 1.083-beta1 released.

30 July 2020 - APP 1.083-beta1 has been released introducing Comet processing! This 1st beta has comet registration. The stable release will also include special comet integration modes.

9 July 2020 - New and updated video tutorial using APP 1.081: Complete LRGB Tutorial of NGC292, The Small Magellanic Cloud by Christian Sasse (iTelescope.net) and Mabula Haverkamp

2019 September: Astro Pixel Processor and iTelescope.net celebrate a new Partnership!

newbie problem  

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(@john-quinn)
White Dwarf Customer
Joined: 2 months ago
Posts: 14
June 27, 2020 00:35  

Hi all, I processed my first set of images and calibration frames with the trial version the other day with decent results, for a newbie! Today, I had lights 120x30, 60x60, 40x90 and 12x300, with lights,darks and flat darks matching each. I loaded them all at once and hit "integration", after two hours  the image which was generated is totally black. Any thoughts?

I am attaching the TIFF and jpeg file of my first image that had no issues.   Thanks!

NGC7000 lpc cbg Stfinal small
NGC7000 lpc cbg Stfinal small

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(@vincent-mod)
Quasar Admin
Joined: 3 years ago
Posts: 2128
June 27, 2020 11:45  

Something went wrong with your upload of the black image, could you try again?


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(@john-quinn)
White Dwarf Customer
Joined: 2 months ago
Posts: 14
June 27, 2020 14:54  

Here is a small TIFF and jpg from the bad result. When I processed the same files in DSS I got a good result. Don't know where I messed up

blackngctiffsmall
blackngctiffsmall

 


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(@john-quinn)
White Dwarf Customer
Joined: 2 months ago
Posts: 14
June 27, 2020 15:10  

The attached image shows the result of the sessions of both days. On June 25, the results were as expected. The resulting output on June 26 had intermediate files for 30,60,90 and 300 sec, all of which were totally black when opened, as was the final result. Don't know if you can have any insight by examining the file outputs. Thanks.

blackdata

 


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(@john-quinn)
White Dwarf Customer
Joined: 2 months ago
Posts: 14
June 28, 2020 00:11  

So, tried it again, this time placing lights and calibration frames into different sessions (30,60,90,300 sec), with flats, dark flats assigned to all. Same result...totally black final image. What can I share to help diagnose the error? Would copying the console contents help?


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(@vincent-mod)
Quasar Admin
Joined: 3 years ago
Posts: 2128
June 28, 2020 11:05  

Mmm, what settings did you use in APP, all on automatic? What is your exact workflow?


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(@john-quinn)
White Dwarf Customer
Joined: 2 months ago
Posts: 14
June 28, 2020 19:03  

Vincent, thanks for your replies. I persisted and used my laptop this time which has a faster processor and 16 GB RAM vs 12 on my desktop. That, and it seemed I had loaded a couple of bad calibration frames during the first efforts. In any case, I did manage to generate a file which I could then process in PS. Thanks again.

Crescent APP

 


(@john-quinn)
White Dwarf Customer
Joined: 2 months ago
Posts: 14
July 9, 2020 19:16  

@vincent-mod  @mabula-admin   Vincent (or Mabula)...back again with the same (or similar) problem. I have had intermittent success in using APP but have had several sessions where the final integration has no data and a black screen. I try to be careful adding lightd/flats/darks and dark flats and can't identify the problem. When looking at the file data I do see

SNR & noise     NAN  - 0    as shown in the attached image. 

Also, quality score   (infinity symbol) INTEGRATE

still more bad data
MORE BAD DATA

  

 

does this give you a clue?

Please let me know what additional info I can provide. Most settings are default (I did select multi-session, RGGB, Force Bayer and Ha-OIII color)

Thank you.

bad data jpg

 


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(@vincent-mod)
Quasar Admin
Joined: 3 years ago
Posts: 2128
July 10, 2020 11:02  

Ah yes, that points to a data problem for sure. Can you post some screenshots of your master bias, master dark and masterflat? And maybe also a sub? It almost seems like your noise floor is too low. What gain and offset do you use?


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(@john-quinn)
White Dwarf Customer
Joined: 2 months ago
Posts: 14
July 11, 2020 03:10  

Hi...my master calibration frames are 31 MB and site will not let me attach actual files.

ASI071MC PRO at unity gain 90 using Radian Triad Ultra Quadband filter on RASA 8.    Here are screen shots. Thank you.

Master Flat

image

MD 60sec

image

MD 90sec

image

MD 300sec

image

MD Flat

image

Light 60sec

image

Light 90sec

image

Light 300sec

image

 

 


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(@vincent-mod)
Quasar Admin
Joined: 3 years ago
Posts: 2128
July 12, 2020 14:15  

So that doesn’t seem like a big issue right away. Can you check the offset as well, it should be in the fits header in the window left of the image, I think a bit to the bottom of that list.

If all seems ok-ish, I think the best thing is for you to upload some files to our server for me to check. I’ll share the link later.


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(@john-quinn)
White Dwarf Customer
Joined: 2 months ago
Posts: 14
July 12, 2020 16:34  

Hi Vincent, offset is 65.


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(@john-quinn)
White Dwarf Customer
Joined: 2 months ago
Posts: 14
July 13, 2020 01:38  

@vincent-mod   Hi Vincent...I processed new data of a new target and used new flat and dark flat subs with the previous MD created by APP for 90 and 300 sec. images and everything went well.

However, in an attempt to do some Hubble palette of today's images with OSC I ran into this error message when attempting to re calculate using the SHO Hubble 2 scheme.

Thoughts??

image

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(@vincent-mod)
Quasar Admin
Joined: 3 years ago
Posts: 2128
July 17, 2020 22:10  

Sorry for the delay.. Mmm, so maybe I'd need the data for that to check.

You can upload some to our server (<- click that link) with username/password: appuser

Please create a directory called "john-quinn-hubble" and I'll have a look asap.

Thanks, Vincent

 


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