Through this "Flash Call", the SOFIA program invites Director's Discretionary Time (DDT) proposals for observations with the FORCAST instrument in two celestial regions, to be observed in the week of February 14, 2022. The two available sky areas are approximately centered on: RA, Dec: {5h, 85˚} and {17h, +5˚}, (with significant extent in the SOFIA elevation direction). The regions available (at the mid-point of the each flight leg) are illustrated in the images below (click on image caption for full-size version).

The regions available correspond to extended "dead legs" in two flight plans focused on observations of the Moon and therefore the target location and observation duration are significantly constrained.

A total of up to ~3h of observing time is available in the first area with ~4h of observing time in the second sky area.

For the first area all FORCAST instrument modes are available, while for the second area, only LWC observations (imaging or spectroscopy) are available as detector persistence from the Moon observations are likely to make the SWC uncalibratable for the remainder of the flight.

Because of the observing constraints required for the Moon observations, we ask that proposals in response to this Flash Call explicitly discuss the benefit of and robustness to observation-duration changes up to ~25% of the nominal solicited time.

Proposals should be submitted through the USPOT tool, using the proposal process for Director's Discretionary Time observations. The Observers Handbook details properties of FORCAST.

Proposals are due on Jan 9, 2022, 9 pm PST. The proposals will be evaluated though an abbreviated, dual anonymous, review process. Proposers are therefore reminded to anonymize their texts accordingly.  Selections are expected to be announced by the week of January 17.

Questions about the call or proposals can be addressed to the SOFIA Help desk: