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:

• ACS Instrument Handbook [PDF]– Advanced Camera for Surveys
• COS Instrument Handbook [PDF] – Cosmic Origins Spectrograph
• STIS Instrument Handbook [PDF] – Space Telescope Imaging Spectrograph
• WFC3 Instrument Handbook [PDF] – Wide Field Camera 3
• FGS Instrument Handbook [PDF] – Fine Guidance Sensor

Call for Proposals

To prepare your proposal:

• HST Proposal Opportunities and Science Policies, including the:
  • Hubble Space Telescope Call for Proposals for Cycle 30

Advice for Planning ACS Observations

Phase II Proposal Instructions

To prepare your Phase II submission for accepted proposals:

• HST Phase II Proposal Instructions Home [PDF]

Data Handbooks

• Introduction to the HST Data Handbooks [PDF]
• ACS Data Handbook [PDF] – Advanced Camera for Surveys
• COS Data Handbook [PDF] – Cosmic Origins Spectrograph
• STIS Data Handbook [PDF] – Space Telescope Imaging Spectrograph
• WFC3 Data Handbook [PDF] – Wide Field Camera 3
• FGS Data Handbook [PDF] – Fine Guidance Sensor

DrizzlePac Handbook

To align, process, and combine your HST images:

• The DrizzlePac Handbook

Additional Resources

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

• http://www.stsci.edu/hst/documentation
  • http://www.stsci.edu/hst/documentation/handbook-archive
• http://www.stsci.edu/hst
  • http://www.stsci.edu/hst/instrumentation – detailed information on each HST instrument
• http://www.stsci.edu/scientific-community/software/ – APT, ETC, and DrizzlePac
• HST Observatory Brochure (PDF) including pocket guides for each instrument

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