OSIRIS (Optical, Spectroscopic, and Infrared Remote Imaging System) is the main scientific imaging system on the orbiter of the ESA spacecraft Rosetta for its mission to comet 67P/Churyumov–Gerasimenko. It was built by a consortium led by the German Max Planck Institute for Solar System Research.
OSIRIS was approved as an instrument for the spacecraft in 1996. [1] It was launched in 2004 on Rosetta and was used until that mission concluded with the deactivation of the Rosetta spacecraft in September 2016. [2] [1]
The OSIRIS had two cameras, each with a different field of view. Both used a charge-coupled device (CCD). [1] Each camera had the same type of CCD with a resolution of 2048 by 2048 pixels. [1] The CCDs were supported by two digital signal processors that use solid-state memory. [1] The computer used the VIRTUOSO operating system. [1]
The fields of view were: [1]
It was launched on the Rosetta spacecraft in 2004, and first used in space in May 2004. [1] In total, the OSIRIS cameras took 98,219 images during the entire mission, 76,308 of those at the comet. It operated for 22,176 hours. [3]