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Inability to stack Data run


Starry-Eyes

Question

I have been successfully using DSS with BYEOS for over 2 years now. I did a night long run where all the shots in the evening stack but after midnight not. Individual Pictures data looks fine, all external info created by DSS is all there. Plenty of room on the disc. All laptop hardware checks out.
Any run done before using the same darks, flats, and bias still run fine. The pictures stack on the right side but deteriorate on the left side to a blur. Reload DSS, same. Am using a Canon 60Da shooting Raw + Jpeg with a HP pavilion laptop. A subsequent run will not stack. Can't even stack two shots of that data. So I think I have narrowed it down to some kind of corruption of the data given DSS

Causes?

1) the camera 
2) the data write to disc through BYEOS
3) cabling
4) transient black hole causing gravatational distortion of the field? ha.

Anything else ?
Should I reload BYEOS?

Is there a way to test the Data for corruption and/or repair? 
I have attached half of a log file from one of the bad runs.
Example of a stacking run in DSS:


post-3142475-141893877032_thumb.jpg 

I have been trying to get on the Yahoo DSS forum without success cause of some weird login issues.


What do Youall think? 
Thanks.

Trunkate_logfile-[20140623-20h51m06s841]-[400]-2014-06-23.txt

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I have been successfully using DSS with BYEOS for over 2 years now. I did a night long run where all the shots in the evening stack but after midnight not. Individual Pictures data looks fine, all external info created by DSS is all there. Plenty of room on the disc. All laptop hardware checks out.

Any run done before using the same darks, flats, and bias still run fine. The pictures stack on the right side but deteriorate on the left side to a blur. Reload DSS, same. Am using a Canon 60Da shooting Raw + Jpeg with a HP pavilion laptop. A subsequent run will not stack. Can't even stack two shots of that data. So I think I have narrowed it down to some kind of corruption of the data given DSS

 

Causes?

 

1) the camera 

2) the data write to disc through BYEOS

3) cabling

4) transient black hole causing gravatational distortion of the field? ha.

 

Anything else ?

Should I reload BYEOS?

 

Is there a way to test the Data for corruption and/or repair? 

I have attached half of a log file from one of the bad runs.

Example of a stacking run in DSS:

 

 

BYEOS ex.jpg 

 

I have been trying to get on the Yahoo DSS forum without success cause of some weird login issues.

 

 

What do Youall think? 

Thanks.

 

This has nothing to do with BackyardEOS... I can say that with 100% certainty because BYE does nothing to the image... it downlods the RAW file just as you would using Windows... so reloading BYE would not do anything.

 

Did you try posting in the DSS forum?

 

Did you try another stacking software?

 

Regards,

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That looks like you had thin clouds parked over the right-hand side of your M16...

 

Did you examine each of the RAW Images that you included in your DSS Stack ??  Inspect them in something that actually opens the RAW File and not simply the accompanying JPG ??

 

Most likely, if the "faded / obscured right side" is not the actual captured sceen, then one of your RAW files is corrupt.  OR, your Calibration Files are funky.  Have you tried DSS with ONLY the Lights ??

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Called Canon support. We reset the 60Da. I'll also use a single USB connection instead of running through a hub with the autoguider.

 

For my example shot info: 17@420s@800iso, on AC power. No clouds, no haze, in the Sierra Nevada near Yosemite.

 

Guess I'll keep trying to get onto the Yahoo DSS site. I have no other stacking programs at this point. Any other free ones out there? 

 

Thanks

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I just had something similar and someone suggested to try without the flats. It worked!

 

There was a follow on suggestions as to how to get DSS to behave with those flats but I haven't followed up.

 

Anyway, try stacking without the flats and dark flats and see what happens. If that works we can look at the other suggestion.

 

Cheers,

Z

 

 

 

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I had more issues along these lines today. It seems to me that it's all around the number of stars detected. If there are too many, DSS wigs out and does strange twisted curved things in corners.

 

Making sure there are less than say, 50 stars detected in each light frame seems to fix the issue. I've found that this could mean turning up the threshold higher than where you get zero stars, in the calculation on the advanced tab when you click on "register". In one shot of NGC7000 today, I was getting a calculated zero stars at 60% threshold, but the weirdness didn't go way until I went higher.

 

Hope that helps.

 

Don't know why removing the flats also fixed things for me in one image. It didn't in other images today (but the above did).

 

Cheers,

Z

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