NASA's James Webb Space Telescope

STScI Invites Scientists To Submit Proposals for JWST Cycle 1

News Feature November 30, 2017

Illustration of JWST's science themes.

Updated 3/27/2018: The JWST Cycle 1 GO/AR deadline has been delayed. See the March 27 news article for more information.

We are pleased to announce that the JWST Cycle 1 call for proposals for general observer (GO) time has been released, with up to 6,000 hours available in this cycle. Observing programs will be offered in multiple categories, determined by program size and other criteria.

Program Category Size Estimated Allocation*
Small programs ≤ 25 hours 3,500 hours
Medium programs >25 and ≤ 75 hours 1,500 hours
Large programs >75 hours 1,000 hours

* Subject to TAC adjustment.

In addition, the Cycle 1 call supports Calibration Proposals, Long-Term Proposals, Treasury Proposals, and Survey Proposals. We also invite proposals for Theory Programs, Data Science Software development, and Archival Programs to support analysis of calibration and the Director’s Discretionary Early Release Science (DD-ERS) data.

Proposals are due by 8 p.m. Eastern Time on April 6, 2018. The Cycle 1 Time Allocation Committee will meet in late June 2018, with selections announced in July 2018.

For more details, please consult the full call for proposals . Questions may be submitted to the JWST Help Desk.