Use the STIS Instrument Handbook
together with the Cycle 25 Call for Proposals
(CP) and HST Primer
when assembling your STIS Phase I proposal.
provides policy and instructions for proposing. The HST Primer provides a basic introduction to the technical aspects of HST and its instruments, and explains how to calculate the appropriate number of orbits for your Phase I observing time requests. The STIS Instrument Handbook
contains technical information about STIS describing its expected performance and presenting suggestions for use. Chapter 2
in the Handbook describes special considerations for Cycle 25.
If your Phase I proposal is accepted, you will be asked to submit a Phase II proposal in which you specify the exact configurations, exposure times, and sequences of observations that STIS and the telescope should perform. To assemble your Phase II proposal, use the STIS Instrument Handbook
in conjunction with the Phase II Proposal Instructions
. These instructions describe the exact rules and syntax that apply to the planning and scheduling of STIS observations and provide relevant observatory information. You should also check the STIS website
for any updates relevant to the current proposal Cycle. Many other useful HST documents are also available on-line at: