3 corner image inspection appears rotated by 120 degrees

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

Brought to you by: han59

#17 3 corner image inspection appears rotated by 120 degrees

Milestone: 1.0

Status: closed

Owner: nobody

Labels: None

Updated: 2022-06-25

Created: 2022-01-17

Creator: Chris Lewicki

Private: No

4 corner and 3 corner tilt measurements give significantly different results.

It would appear from the 4-corner result, and examining the fitted stars, that the three corner fit is rotated clockwise by 120°.

Supporting files: https://www.dropbox.com/s/nlemqjukt5yugd0/3corner-rotation-bug.zip?dl=0

Discussion

han.k - 2022-01-17

This is fixed in the Windows version, version 2022-1-17

http://www.hnsky.org/astap_setup.exe

In once place the angle was calculated relative to the x-axis instead of the y_axis.

Clear skies, Han

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Chris Lewicki - 2022-01-17

Thanks for confirming - I use the Mac version, so I'll wait for the update. Glad to see the 3-axis capability!

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han.k - 2022-01-17

I just uploaded the new Mac version.

If you find anything, please report.

Clear skies, Han

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- Chris Lewicki - 2022-01-17
  
  Thanks - the 3-corner result now looks more reasonable when compared to the star measurements and the 4-corner result.
  
  OK to close the ticket.
  
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han.k - 2022-06-25

status: open --> closed
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