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Add sensor height map to batoid telescope model #451

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jmeyers314
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Adds sensor height map data to batoid telescope model. The height data comes from https://ls.st/doc-37242. The more detailed measurements there are fit, for each sensor, to a Zernike model which I evaluate here. Also included is a script to make a focal plane height map for comparison to the docushare document. Here's the actual comparison:

From Doc-37242
Fig 21

From imsim script:

fp_height_map

There's enough similarity to convince me I got the signs and coordinates right, even if there are some offsets too (though note, it was hard to match colorbars).

Finally, I had to tweak batoid a bit to make this, so it won't pass CI until that's updated. I wanted to make the PR while this was fresh in my memory though.

@cwwalter
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cwwalter commented Mar 7, 2024

Do we have the info to do the same for the ComCam model?

@aaronroodman
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aaronroodman commented Mar 7, 2024 via email

@cwwalter
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@arasmssn This is the GitHub issue I asked you about.

@arasmssn
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@jmeyers314 I think something's wonky in the trascription between the focal plane sensor fit zernike coefficients. First of all it looks almost like there's a vignetting pattern that drops off at field positions >1.75deg or so that makes the surface height of the sensors drop off. I'll need to check these maps against the actual in-situ measurements for which we also didn't have full reach because of the displacement sensor's plane of reflection.
I'll post other problems I think I'm seeing but need to be sure first.

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4 participants