SCORPIO (Spectrograph and Camera for the Observation of Rapid Phenomena in the Infrared and Optical) is a multiband instrument covering 0.385um to 2.35um in spectroscopy and 0.400um to 2.35um in imaging, currently under development for the Gemini Observatory. The instrument is intended to be deployed as a facility instrument at Gemini South in Chile to enable detailed follow-up observations of transients detected by the Vera C. Rubin Observatory. The instrument is designed with eight parallel channels corresponding to the standard g, r, i, z, Y, J, H, and Ks passbands. Here we present an update on the status of the instrument, the data reduction software, and the current path forward to completion.
SCORPIO is the next facility instrument for the Gemini South telescope at Cerro Pachon, Chile. SCORPIO’s main science driver is the detection and monitoring of faint time-domain events, in particular the follow-up of discoveries by the Vera C. Rubin Observatory, but it can also carry out with unique efficiency a large variety of astrophysical programs. The instrument has recently passed Critical Design Review and is now in its Assembly, Integration and Verification phase. In this paper we provide an updated overview of the final instrument design and the main performance parameters in light of the science drivers.
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