For detailed information on the capabilities of the instrument, and how to plan observations, users should refer to the COS Instrument Handbook
. For further information and timely updates, users should consult the COS Web page (http://www.stsci.edu/hst/cos
), especially the Document Archive link
. In particular, the STScI Analysis Newsletters
(STANs) highlight changes in code and calibration procedures and provide other instrument-related news. The Instrument Science Reports
(ISRs) present in-depth characterizations of the instrument and detailed explanations of calibration code and procedures.