12 October 2022
D.9 The NuSTAR General Observer (GO) Program solicits proposals for basic research relevant to the Nuclear Spectroscopic Telescope Array (NuSTAR) Small Explorer mission. NuSTAR Cycle 9 will commence on or about 1 June 2023, and last for a nominal period of 12 months. Based upon the outcome of the 2022 NASA Astrophysics Senior Review process, NuSTAR operations are currently funded through 30 September 2025. Further details on the Cycle 9 program may be found on the NuSTAR GO Program website.
This amendment changes the text in a number of ways: The earlier restriction that joint NICER observations may not be multi-cycle has been removed. Clarifications have been added regarding joint NICER monitoring, Large Program targets of opportunity (ToOs), and the overall GO budget. Statements mentioning the NASA Astrophysics Senior Review process have been updated to refer to the 2022 installment. The due date for proposals remains unchanged; Phase-1 proposals are due by 4:30p Eastern/3:30p Central/2:30p Mountain/1:30p Pacific on 26 January 2023, via the Astrophysics Research Knowledgebase Remote Proposal System (ARK/RPS).
For D.9 NuSTAR Cycle 9, programmatic information may be obtained from the NuSTAR Program Scientist Hashima Hasan at hhasan@nasa.gov and technical questions may be directed to Tod Strohmayer, NuSTAR Mission Scientist, at tod.e.strohmayer@nasa.gov.