The code in https://github.com/simonsobs/PSpipe/blob/master/project/maps2params/python/maps_to_params_prepare_sim_data.py does not seem consistent with current mflike master. Obsolete? If not, may need updating for https://github.com/simonsobs/LAT_MFLike/pull/86 (along with https://github.com/simonsobs/pspipe_utils/pull/53).