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STScI Help Desk

CYCLE 11 DECISIONS: The HST science program for Cycle 11 has been announced. Notification emails were sent out to all proposers on December 6, 2001. If you are expecting an email but have not received it within a few days from this date, then please inform

Results of the Cycle 11 proposal selection:

Cycle 11 Announcement Page

STScI solicits proposals for HST Observing, Archival & Theoretical Research. Two documents form your primary source of information, the Call for Proposals and the HST Primer, both contained below.


  • Phase I Proposals: September 7, 2001 8:00 pm EDT
  • E/PO Proposals: April 5, 2002

Release Information

Late Breaking News

Call for Proposals

The Call for Proposals describes the policies and procedures for submitting a Phase I proposal for HST Observing, Archival or Theoretical Research. (Information on use of electronic document formats)

  • PDF [US Letter Size]
  • PDF [European A4 Size]
  • HTML

HST Primer

The Primer provides an introductory overview of the Hubble Space Telescope and explains how to calculate the appropriate number of orbits for an observing proposal. (Information on use of electronic document formats)

  • PDF [US Letter Size]
  • PDF [European A4 Size]
  • HTML

Additional Information:

Contact the STScI Help Desk at 410-338-1082, 1-800-544-8125 (toll free U.S. number), or if you need assistance with any aspect of proposing for and using HST.

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Last updated: March 07, 2002