Phase II Proposal Instructions
STScI is no longer printing the Phase II Proposal Instructions (P2PI) and we do not maintain an inventory of copies. This saves on wasted paper, but, more importantly, the electronic document has extremely useful features that paper cannot reproduce. These include a fully-linked table of contents and index, navigation buttons on each page, and many cross-references.
We urge you to try the document on-screen first. You have several ways to access the PDF files for reading:
- Recommended: Click to download the
A4 versions. Your browser will open a dialog box and ask for a file
name. Place the file in a location convenient to you, and then you can
open the file in your browser by typing a URL of the form:
If this does not work, click on the above links with your right mouse button and pull the menu down to "Save Link As...".
- You can get the PDF files by anonymous ftp with these steps:
- cd to your local directory where you wish to place the file
- ftp ftp.stsci.edu
- login as "anonymous," use your e-mail address as password
- cd outside-access/out.going/p2pi
- get p2pi.pdf (or p2pi_A4.pdf)
After transferring the files, you open them in your browser as "file:..".
The Acrobat reader can be downloaded for free from www.adobe.com. Once you are in the document it is easy to print selected pages for ready reference (use Ctrl-p).
If you still want a paper copy after you try this, please realize we will do exactly what you would anyway: print it out on a laser printer, stick it in an envelope, and drop it in the mail. Send requests for paper copies to firstname.lastname@example.org.
- Full Set of HST Documentation
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. Get the Primer as: PDF [US Letter Size], PDF [A4 Size], or as HTML.
Science Justification Templates for Cycle 25 HST Phase I
HST Phase I Roadmap
Up to 10% of the available HST observing time may be reserved for Director's Discretionary (DD) allocation.
Up to 200 orbits per cycle will be available for Mid-Cycle GO programs. Mid-Cycle programs were initiated in Cycle 23 to provide the community with an opportunity to propose for in-cycle observations of recently-discovered, non-variable objects. As such, they complement Director’s Discretionary programs, which target unexpected transient phenomena and time-critical observations..
Special Programs from Past Cycles
Status of Current and Past Programs:
- Treasury, Archival Legacy and Large
- JWST Preparatory
- UV Initiative
- Joint Observatory
- Joint XMM-HST Proposals