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For Professional Research Using the NASA Allocation for Telescope Observing Time at the W.M. Keck Observatory NASA's proposal solicitation for BOTH 2008 A and 2008 B (February 1, 2008 to January 31, 2009) as well as Exo-Zodiacal Dust Survey Key Science Teams is closed. Proposals were due on September 24, 2007, at 5 pm PDT.

Professional researchers interested in obtaining access to NASA's portion of observing time on the Keck telescopes should read these guidelines for critical information about the 2008 call.

Proposers should clearly and succinctly discuss the scientific goals of the proposed observations following these guidelines.

• General 2008A and 2008B proposals
• Exo-Zodiacal Key Science proposals

The opportunity to propose as Principal Investigators for the NASA time on the Keck Telescopes is open to all U.S.-based astronomers. ("U.S.-based astronomers" have their principal affiliation at a U.S. institution.)  Online proposal submission is offered by the MSC.

The following documents provide additional information that is updated once a semester if necessary. The "new icon" () indicates that updates have been made since last semester. 

• New instrumentation is available on a time-swap basis, including Gemini-N, Gemini-S and Subaru instruments
• Keck Interferometer Nuller is now available on an fully operational basis with new sensitivity limits
• Instrumentation Fact Sheet 
• Keck Telescope Users Guide 
• Proposals in Support of NASA Space Missions 
• Multi-Semester Proposals 
• NASA Keck Acknowledgement Statement 
• NASA Keck Users' Bibliography 
• NASA Keck Time Allocation Committee Roster
• Visitor Instruments at the Keck Telescopes - CARA does not support visitor instruments at the present.
• Service Observing - The Keck Interferometer is offered only in a service observing mode. CARA does not anticipate having service observing time available on other instruments in the near future.

For general public information, please visit the Keck Home Page. 

WebCurator & MSC Cognizant Official: Dawn Gelino