An Update on the Performance of the Space Telescope Imaging Spectrograph

Details An Update on the Performance of the Space Telescope Imaging Spectrograph An Update on the Performance of the Space Telescope Imaging Spectrograph

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21924115b&link_type=abstract

American Astronomical Society, AAS Meeting #219, #241.15

Computer Science

Performance

Scientific paper

The Space Telescope Imaging Spectrograph was installed during Hubble Servicing Mission 2 in 1997 and operated until a malfunction in 2004. It was repaired during Servicing Mission 4 (SM4) in 2009, and has successfully operated since then. Many of the characteristics of the instrument have continued to evolve over time with the same trends seen in Cycle 17. We present here an update on its current performance based on the latest Cycle 18 and 19 calibration observations. Specifically we will provide updates on the sensitivity of all STIS modes, the evolution of the echelle blaze function, the flat fields and dark rates of each detector, and characteristics of the CCD detector including read noise, spurious charge, number of hot pixels, and charge transfer efficiency.

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