HST User Documentation - HDox

Welcome to STScI's Hubble Space Telescope Documentation – "HDox".  Powered by Confluence, HDox pages offer improved search capabilities and a new look and feel. The following documents are available:

Instrument Handbooks

To learn about the instruments:

Call for Proposals

To prepare your proposal:

Advice for Planning ACS Observations

Phase II Proposal Instructions

To prepare your Phase II submission for accepted proposals:

Data Handbooks

DrizzlePac Handbook

To align, process, and combine your HST images:

Additional Resources

Additional HST documentation, news, and technical reports are available at:

HST Help Desk

If you have questions, please contact us. We encourage users to access the web portal, which offers new features:

  • http://hsthelp.stsci.edu
    • Read Knowledge Base articles that address Frequently Asked Questions
    • Search all HDox pages and Knowledge Base articles for answers
    • Send your question directly to the appropriate team of experts
  • help@stsci.edu
    • Questions may also still be submitted via e-mail