US National Gemini Office

The US NGO main goal is to support US Gemini Users in the phases of the astronomical observing cycle, from proposal preparation through data analysis. This page is the main portal to all information needed in the different phases, explaining and connecting to specific Gemini web pages, where users can find definitive contents on instruments and modes. In addition, this page contains tools for data reduction and analysis for the entire Gemini community.  All Gemini Users are encouraged to contact us with questions and comments.




  • PROGRAM PAYS OVERHEAD CHARGES IN 2017B.  Details will be in the upcoming call for proposals.  The PIT will calculate the overhead charge.  
  • Gemini North laser is dead and laser AO will not be offered in 2017B.  See the upcoming call.
  • Special call for GN poor weather proposals, NIRI or GNIRS only.  GMOS off telescope in February and March
  • Phase I/II driving you crazy?  A rewrite project has started.  Consider filling out a questionnaire or taking an interview.
  • 2016B GMOS-S UsersRead the report on GMOS BIAS problems.  This problem may have gone away in February 2017.  Check the Gemini website for the latest news.
  • Want to know how to reduce GMOS data?  -- Check out our GMOS data reduction cookbook.
  • A draft NIRI reduction manual is now available.

Post-data acquisition sites


Who We Are

  Dave Bell at NOAO supports Phase I.

Last updated or reviewed April 21, 2017.