PhoSim Tutorial 5: How to Simulate Different Telescopes
Another complex use of PhoSim is to simulate other telescopes. There are a set of files called the instrument and site characteristics (ISC). By default, PhoSim points to the files in data/generic. The generic telescope is a simple 1 meter parabolic telescope with a 1k x 1k sensor. Other implemented designs can be simulated using the -i option as:
phosim catalog -i instrument
Here instrument is a directory that is in the data directory. This could be one of the currently implemented observatories or a custom instrument that you create.
The same scene through multiple telescopes is then very straight-forward. An example of this is a 150 second exposure through the Rubin LSST, WIYN ODI, and JWST NIRCAM instruments that use the following commands.
phosim examples/large_catalog_long_exposure -i lsst -c examples/nocosmics
phosim examples/large_catalog_long_exposure -i wiyn_odi -c examples/nocosmics
phosim examples/large_catalog_long_exposure -i nircam_sw_a -c examples/nocosmics
The Rubin LSST image: