JWST Observer
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JWST Observer is managed by STScI and provides astronomers with the most up-to-date information, news, and events related to observing with JWST.
The James Webb Space Telescope traces its roots to the workshop: "the Next Generation: A 10 m class UV-Visible-IR Successor to HST,” held at STScI in September 1989. The workshop debated the next scientific and technological steps after Hubble. Following a decade of concept development by numerous scientists and engineers from across NASA, industry, and academia, a proposed 6.5m cold, infrared observatory was recommended as a top priority by the 2000 Decadal Survey. From the mid-2000s, the observatory has been under development by NASA and international partners, ESA and the CSA. In parallel with this effort, STScI has been creating the JWST Science and Operations Center, which encompasses all the systems, tools, and software needed to operate JWST as a scientific observatory, and to interface with the international scientific community. After launch and commissioning, STScI will operate JWST and enable astronomers to maximize the scientific output of the mission.
09/10/2026
Build 13.0 of the Science Calibration Pipeline is now available. It fixes several outstanding known issues and continues development of multiple new observing modes. Read more: https://ow.ly/QwI850ZM5Nr
09/09/2026
The Rocky Worlds DDT Program adds a new target, TOI-1452 b, following detailed Core Implementation Team analyses and a recommendation from the Science Advisory Council: https://ow.ly/JYtg50ZLg11
09/04/2026
An APT update for Cycle 6 was released today. Cycle 6 proposers must upgrade to this new version. Get the details: https://ow.ly/KNyo50ZJw3H
08/26/2026
The maximum visit duration is 6 days for Cycle 6 and a scientific justification must be provided for these long visits. Get the details: https://ow.ly/JJau50ZFMWV
08/24/2026
Late breaking news: Get the details of a new Cycle 6 Call for Proposals policy update pertaining to eligibility for funding. https://ow.ly/FNpq50ZEOPr
08/19/2026
The new NIRSpec BOTS multistripe readout capability improves the bright limits for time-series observations. Read more: https://ow.ly/otuj50ZBr5n
08/17/2026
's MIRI new readout pattern reduces the read noise by more than a factor of 2 with respect to SLOWR1: https://ow.ly/YcSN50ZAv24
08/14/2026
New NIRISS SOSS multistripe subarrays offer a greatly improved bright limit and enable unsaturated observations of all currently known transiting exoplanet systems. Get the details: https://ow.ly/uSyn50ZzXek
08/12/2026
NIRCam's new superstripe readout capability offers significant improvements to the brightness limits for imaging and time series observations with . Read more: https://ow.ly/JA3a50ZyUJS
08/10/2026
STScI is requesting white papers from the community with compelling scientific ideas for Multi-Cycle Treasury programs that require large allocations of telescope time to complete. Get the details: https://ow.ly/NTqR50Zy3Hh
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