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incorrect pixel ratio of SDSS images #2399

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loveluthien opened this issue Aug 2, 2024 · 0 comments
Open

incorrect pixel ratio of SDSS images #2399

loveluthien opened this issue Aug 2, 2024 · 0 comments
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bug Something isn't working

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@loveluthien
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Describe the bug

SDSS image only provides a CD matrix. However, if we take CDELT1 = CD1_1 and CDELT2 = CD2_2, the pixel ratio will be a ridiculous value of about 12.

To Reproduce
Steps to reproduce the behavior:

  1. open frame-r-000094-1-0011.fits
  2. See an "elongated" image

Expected behavior
Like the image shown in DS9
Screenshot 2024-08-02 at 12 26 45 PM

Screenshots or videos
Screenshot 2024-08-02 at 12 27 41 PM

Platform info (please complete the following information):

  • OS [e.g. macOS Monterey]: macOS 14.4.1
  • Browser [e.g. chrome, safari, electron app]:
  • Browser version [e.g. 22]:
  • Backend branch [e.g. dev, v3b2 release]: dev
  • Frontend branch [e.g. dev, v3b2 release]: dev
@loveluthien loveluthien added the bug Something isn't working label Aug 2, 2024
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@loveluthien