Estimation of the Rubin effective area

Abstract

This tech-note reports an estimate of the Rubin SST telescope’s effective area. This figure of merit accounts for the measured reflectance of the telescope mirrors and the transmittance profiles of the LSSTCam optics. In addition, it accounts for the detector quantum efficiency and the pupil obstruction factors coming from the main telescope mechanics and baffles. The output of this analysis might be of interest to developing the Rubin exposure time calculator.