Simulate PVI

[Ben Emmons]

How can I simulate an LSST Processed Visit Image (PVI)? I'd like to generate a FITS file that resembles a raw image from a single LSST exposure.

[karl krughoff]

Hi Ben, I usually use images for this purpose. They are produced by default and the LSST stack can process them further. These aren't strictly PVIs since they contain saturated pixels, cosmic rays, and vignetting, but they are close (especially if you take chips from the central raft). Hope this helps. Ping me on slack if you want to know more.

[John Peterson]

you can get started with:

phosim examples/small_catalog -c examples/nobackground

then get the image marked lsst_e.... this is similar to a processed visit image as simon said above.

[Ben Emmons]

Hi @johnrpeterson , I followed your recommendation and the result was close, but for some reason the star field doesn't extend to the full 4K plane. See attached.

[John Peterson]

yeah, thats just a test example.

try:

phosim examples/large_catalog -c examples/nobackground

[John Peterson]

should be resolved, but reopen if necessary.