APP choosing poor r...
 
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2023-03-15: APP 2.0.0-beta14 has been released !

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APP choosing poor reference image

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(@les-brand)
White Dwarf
Joined: 4 years ago
Posts: 10
Topic starter  

I've been playing with APP for under a week, learning from video tutorials etc. After running tab 3. Analyse Stars I checked the chosen reference image and saw it was very poor - massive star trailing compared to all the other frames - so not sure why that was selected as the Ref.  Also I tried right clicking and selecting create analytic graph but nothing showed up.  Also the sorting by certain columns doesn't appear to work.

APP ref image
APP graph
This topic was modified 4 years ago 2 times by Les Brand

   
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(@vincent-mod)
Universe Admin
Joined: 6 years ago
Posts: 5386
 

This is indeed a bit strange, also as the FWHM values are higher then other frames (which makes sense given the trails). Is this with the latest version of APP? And did you see this with other data sets as well?


   
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(@les-brand)
White Dwarf
Joined: 4 years ago
Posts: 10
Topic starter  

Hi Vincent thanks for replying. I tried with a different set and the image with highest quality was chosen as reference so that worked.  

I did notice another issue in registration on the new dataset where red was slightly displaced so will investigate.

Not sure why the graph doesn't work though.


   
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(@les-brand)
White Dwarf
Joined: 4 years ago
Posts: 10
Topic starter  

I think I know why the chosen image counted as reference image.  it appears the frame has double star images across whole frame (must have suffered a knock) - so presumably star density metric doubled!

 

 


   
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