astap program / Forum / General discussions ASTAP: ASTAP cannot solve this

Tempus - 2022-05-10

I am running ASATP in NINA and I have the drift solve function on. ASATP cannot solve this 5 minutes narrowband image. DO you have an idea what the issue might be?
I have the H18 library installed and the proper focal length in my profile. It fails all the time and suggested to use a much smaller FL. At some I click NO to let it used that lesser FL and it still failed. Initial plate solve to find the object without a filter worked.

Last edit: Tempus 2022-05-10

ASTAP cannot solve.jpg

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han.k - 2022-05-10

Look solvable to me. Can you share the original image for a further investigation? Upload it to nova.astrometry.net or https://ufile.io/ and share the link.

Han

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Tempus - 2022-05-10

Here it is:

https://ufile.io/m9fjkvj8

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han.k - 2022-05-10

Your image is suffering from too many hot pixels. You will see that if you load the image in ASTAP and inspect the image with F4.

Just increase the minimum star size. Set ignore stars less then to something like 4" (Lower then your typical HFD value). Then it will solve.

See attached

Untitled2.png

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- Tempus - 2022-05-10
  
  Doing this in ASTAP will apply when it is running through NINA?
  
  Last edit: han.k 2022-05-10
  
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han.k - 2022-05-10

Screenshot inspection

Untitled.jpg

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han.k - 2022-05-10

You have to save the ASTAP setting by hitting the solve button.

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- Tempus - 2022-05-10
  
  I don't understand. When do I save to save those settings? While imaging
  or just for uploading the file?
  
  Last edit: han.k 2022-05-10
  
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- Tempus - 2022-05-10
  
  I tried your settings and it did not work.
  
  Last edit: han.k 2022-05-10
  
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  image.png
  
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han.k - 2022-05-10

You can not set this in Nina.

Start the ASTAP program.
Load a file in ASTAP.
Open the stack menu with ctrl+A or with the Σ button
go to tab "alignment.
Change the setting " ignore stars less then to "3.5 or 4"
Hit the solve button (this will save the setting) and check if it solves.

Now it is changed permanently. If you have sharper stars in future you maybe have to set it lower.

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- Tempus - 2022-05-10
  
  It worked.
  I had the g17 catalog specified there. O now have H18. Should I change
  the setting to H18 or auto. Or leave it as is?
  
  Thank you!!
  
  On Tue, May 10, 2022, 2:25 PM han.k, han59@users.sourceforge.net wrote:
  
  You can not set this in Nina.
  
  Start the ASTAP program.
  Load a file in ASTAP.
  Open the stack menu with ctrl+A or with the Σ button
  go to tab "alignment.
  Change the setting " ignore stars less then to "3.5 or 4"
  Hit the solve button (this will save the setting) and check if it solves.
  
  Now it is changed permanently. If you have sharper stars in future you
  maybe have to set it lower.
  
  ASTAP cannot solve this
  https://sourceforge.net/p/astap-program/discussion/general/thread/3b4fd99b65/?limit=25#93a6
  
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han.k - 2022-05-10

The H18 is good very every setup. Select H18 . You could uninstall/delete the H17. No need for it when you have the H18.

Han

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ASTAP cannot solve this

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ASTAP cannot solve this

ASTAP cannot solve this

Stacking program, astrometric (plate) solver, fits file viewer

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ASTAP cannot solve this