The calls for Cycle 10 observations are open as of October 29, 2021, with a deadline of January 28, 2022, 21:00 PST (January 29, 2022 4:00 UTC). Detailed information about the Cycle 10 calls can be found here.

Two Calls for Proposals are offered:

  • A Call for regular programs, for which approximately 550 hours of observing time is offered and funding up to $5.5M is expected to be available for eligible proposers
  • A Call for the SOFIA Legacy Program, which solicits observing programs that will enable a rich archival dataset of significant scientific value to the astronomical community. Up to three legacy proposals will be accepted, with each allocated up to ~200 hours of observing time (~100 hours of observations per cycle). Funding is expected to be available at the level of $2M per year.

All six instruments -- EXES, FIFI-LS, FORCAST, FPI+, GREAT, and HAWC+ -- will be available during the Cycle (October 1, 2022 to September 30, 2023). SOFIA plans to carry out three Southern deployments: a long deployment scheduled approximately June through September 2023 (GREAT and HAWC+), and two short deployments in November 2022 (FIFI-LS) and March 2023 (EXES). Formal updates to the Calls will be provided on December 10, 2021.