Correct unnormalized PSF when interpolating between focuses.

TESScience / SPyFFI

Spiffy Python for TESS Full Frame Images

MIT License

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Correct unnormalized PSF when interpolating between focuses. #41

Open zkbt opened 7 years ago

zkbt commented 7 years ago

As identified by folks at T'DA1, when the focus is changed between images, something is going wrong in the interpolation. The binned PSFs are not being properly renormalized to sum to 1, before multiplying by the star's brightness.