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Hubble Space Telescope
COS Documents

Newletters (STANs) Space Telescope Analysis Newsletters (STANs) are sent to observers via email, whenever there is news that may affect observation planning or analysis.
Instrument Handbook The Instrument Handbook is the primary guide to the characteristics and use of the instrument. It is also available in PDF format.
Data Handbook The HST Data Handbook is the primary reference for data format and analysis information.
Instrument Science Reports ISRs are technical reports written by the COS Group staff about various aspects of the instrument and data. They usually contain in depth information about a specific topic.
Calibration Workshop Papers The 2010 workshop presentations included a variety of COS-related subjects ranging from its commissioning and characterization to the most recent advances in data calibration.
Conference Posters COS posters presented at various conferences.
Information Brochure May 2012 The COS Information Brochure contains an overview of the instrument's capabilities (PDF).

Document Request

If you wish to obtain a paper copy of any of our documents please use the attached form. Be sure to give us an email address and a postal address so we can be sure that the requested documents reach you.

New in the Last 45 Days

March 30, 2017 STAN
In this Newsletter we inform the community about the release of a new version of the HSLA which can be used in support of Cycle 25 proposal preparation.
COS Team 30 Mar 2017

March 2017 STAN
In this STAN we provide updates on COS to users preparing a program for the Cycle 25 HST Phase 1 deadline.
COS Team 01 Mar 2017

February 2017 STAN
In this STAN we announce the release of an updated NUV DISPTAB as well as recommendations for optimal NUV extraction box heights.
COS Team 24 Feb 2017

ISR 2017-01: Bright Object Protection (BOP) Considerations for M Dwarf Flare Events
We provide clear and concise guidance for Guest Observers and Contact Scientists to evaluate the health and safety of the instrument when observing M dwarfs, taking into consideration current scientific research about the frequency with which large flare events occur, and a risk tolerance level for causing an inadvertent detector shutdown due to overlight conditions from a large flare during an observation.
R. Osten 16 Feb 2017 (pdf)