To allow ingest of phosim-simulated data while using lsstCam mapper we suggest to add controller = 'H'. This is to guarantee unique obsid values for phosim data (Tim Jennes's comment). If this is done, currently the translator returns (using obs_lsst version w.2020.48-1-gf0a7a3e )
An update is needed to allow for controller = 'H' . It affects the `exposure_id` method in https://github.com/lsst/obs_lsst/blob/master/python/lsst/obs/lsst/translators/lsst.py
It doesn't clash with other definitions https://confluence.lsstcorp.org/display/SYSENG/Image+naming+and+visit+definition+conventions (K-T Lim's comment).