Aug. 19, 2015

The 305-meter William E. Gordon Arecibo telescope in Puerto Rico is the largest single-dish radio telescope on our planet. Observing proposals to use it during the six-month (or, in some cases, one-year) period beginning 1 January 2016 are due by 21:00 UTC on 1 September 2015.
The Arecibo Observatory (AO) is part of the National Astronomy and Ionosphere Center (NAIC), which is operated by SRI International under a cooperative agreement with the National Science Foundation and in alliance with Ana G. Méndez-Universidad Metropolitana and the Universities Space Research Association. Use of the AO is available on an equal, competitive basis to all scientists from throughout the world to pursue research in radio astronomy, radar astronomy, and atmospheric sciences. Observing time is granted on the basis of the most promising research as adjudicated by a panel of anonymous referees.

Requests in response to the current call for proposals should be prepared under the procedures detailed in the PDF document Arecibo Proposal Disposition and Telescope Scheduling Procedures. Additional resources:
• The latest news with relevance to this deadline
• Technical information that could be of use to prospective Arecibo proposers
• Other information of interest to our users
• The cover sheet for proposals