SOFIA Cycle 10 Calls for Proposals are open, with a deadline of January 28, 2022, 21:00 PST (January 29, 2022, 4:00 UTC). A total of approximately 650 hours of observing time is offered, along with ~$7.5M of funding for eligible proposers.

Cycle 10 features two Calls for Proposals: one Call for regular programs, and a separate Call for the SOFIA Legacy Program (SLP).

Cycle 10 is expected to last from October 1, 2022, to September 30, 2023. During the Cycle, 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).

Detailed information about the Cycle 10 calls may be found at:

Note opportunities for joint proposals with IRTF and GBO.

An information session on Cycle 10 Calls will be offered at the 2022 Winter AAS meeting (Monday January 10, 10:30-11:00 am Mountain Time), and will also be available online for virtual attendees. More resources and guidance, including video tutorials about the typical pitfalls in observing time estimates, are available at: