Date: Wed, 1 Nov 2006 17:28:22 -0800 (PST)
Subject: Spitzer Space Telescope Cycle-4 Call for Proposals


Please note: The proposal templates have been updated from last year.
You cannot resubmit your proposal verbatim from previous Cycles.


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Spitzer Space Telescope Cycle-4 Call for Proposals
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Release Date:  1 November 2006
Proposal Deadline: February 14, 2007, 5:00 PM PST


On behalf of NASA and the Spitzer Space Telescope Project,
the Spitzer Science Center (SSC) at Caltech is pleased to announce
the release of the Cycle-4 Call for Proposals (CP) for Spitzer
Space Telescope General Observations (GO) and funding for Archival
Research (AR) and Theoretical Research (TR) programs. Investigators
worldwide from all types of institutions are eligible to submit
proposals in response to this CP.

There are several new features in the Cycle-4 CP and investigators
are urged to consult section 4 of the document early in their
proposal planning process for a summary of major changes from Cycle-3.
Two major changes are the reinstitution of Collaborative Spitzer-HST
proposals and the commissioning of the MIPS 160 micron "Enhanced"
photometry mode.  Cycle-4 is 12 months long and will run from
July 2007 through June 2008.

GO/AR/TR proposals must be submitted electronically using Spot,
the SSC proposal planning and submission software, and received
no later than Wednesday, February 14, 2007, 1:00 PM PST.

Note that Collaborative Spitzer-HST proposals are due Friday, January
26, 2007, 5:00 PM PST, with Letters of Intent due Friday, December
1, 2006, 5:00 PM PST.

The S15 version of Spot is scheduled for release in mid-November 2006
and proposers must use this version of the software to submit
their proposals.  ** Proposal PDF files MUST be prepared with the
Cycle-4 templates available at the Proposal Kit website. **

All programmatic and technical information for Cycle-4
is available electronically from the Proposal Kit section of
the Spitzer Science Center website. The URL is
http://ssc.spitzer.caltech.edu/propkit/currentcp.html

Any questions should be addressed to the Spitzer Helpdesk at
help@spitzer.caltech.edu.