JWST Observer

JWST Observer is managed by STScI and provides astronomers with the most up-to-date information, news, and events related to observing with JWST.

[JWST Observer @JWSTObserver]

Join us for Webb Office Hours on Thursday, November 12th at 11 am (ET) to get your data-related questions answered by #JWST experts: https://t.co/g5ZgIXRhrN

[JWST Observer @JWSTObserver]

Announcing a Cheops Guest Observers opportunity: JWST/HST Fast Track proposals bypass scientific evaluation by the CHEOPS TAC. The deadline for each monthly submission cycle is on the last calendar day of the month. Get the details: https://t.co/ObseycMKhR

[JWST Observer @JWSTObserver]

Save the date! The second JWST Summer School will be held August 2-13, 2027 and will focus on exoplanet transits, eclipses, and phase curves with JWST: https://t.co/hcOfuBNvor

[JWST Observer @JWSTObserver]

The deadline for submitting white papers with compelling scientific ideas for Multi-Cycle Treasury programs requiring large allocations of #JWST telescope time is November 4, 2026. Get the details: https://t.co/KaVKDkLDGi

[JWST Observer @JWSTObserver]

Help us improve the #JWST user experience by providing feedback through our 2026 community survey: https://t.co/aQXPwGq7bx

[JWST Observer @JWSTObserver]

Join us for Webb Office Hours on Thursday, October 22nd at 11 am (ET) to get your data-related questions answered by #JWST experts: https://t.co/g5ZgIXRhrN

[JWST Observer @JWSTObserver]

Join us on November 4th for JWebbinar 53 - Hands-on Demo: #JWST and the Optical Constants Database. This JWebbinar will introduce the Optical Constants Database (OCdb), developed at NASA Ames: https://t.co/0DiBpxQiec

[JWST Observer @JWSTObserver]

STScI received 3,203 GO proposals for 138,460 hours (with an additional 8,971 Pure and Coordinated parallel hours requested). This corresponds to an oversubscription of 18:1 with respect to the 7,700 hours offered in #JWST Cycle 6: https://t.co/qV6cT4qgkF

[JWST Observer @JWSTObserver]

The JSTUC Community Forum 3 JWebbinar will be held on October 28th. The #JWST community will have the opportunity to provide valuable feedback to the JSTUC during this session. Get the details: https://t.co/kF2dRAA6Pz

[JWST Observer @JWSTObserver]

Due to technical issues, the #JWST Cycle 6 proposal deadline has been extended to 5 p.m. Eastern Time on October 1, 2026: https://t.co/gVbjJsBU1H

[JWST Observer @JWSTObserver]

Build 13.0 of the #JWST Science Calibration Pipeline is now available. It fixes several outstanding known issues and continues development of multiple new observing modes. Read more: https://t.co/0suTjtQMgg

[JWST Observer @JWSTObserver]

The #JWST 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://t.co/7D4489DXi3

[JWST Observer @JWSTObserver]

An APT update for #JWST Cycle 6 was released today. Cycle 6 proposers must upgrade to this new version. Get the details: https://t.co/d9YVr3UNWS

[JWST Observer @JWSTObserver]

The maximum visit duration is 6 days for #JWST Cycle 6 and a scientific justification must be provided for these long visits. Get the details: https://t.co/U1lizNATLl

[JWST Observer @JWSTObserver]

Late breaking news: Get the details of a new #JWST Cycle 6 Call for Proposals policy update pertaining to eligibility for funding. https://t.co/Alv6dSw6tn

[JWST Observer @JWSTObserver]

The new NIRSpec BOTS multistripe readout capability improves the bright limits for #JWST time-series observations. Read more: https://t.co/7BrPZOOof3

[JWST Observer @JWSTObserver]

#JWST's MIRI new readout pattern reduces the read noise by more than a factor of 2 with respect to SLOWR1: https://t.co/cxtwl0Ts8s

[JWST Observer @JWSTObserver]

New #JWST 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://t.co/PMfB1pxhT4

[JWST Observer @JWSTObserver]

NIRCam's new superstripe readout capability offers significant improvements to the brightness limits for imaging and time series observations with #JWST. Read more: https://t.co/DP1j0C6CVv

[JWST Observer @JWSTObserver]

STScI is requesting white papers from the community with compelling scientific ideas for Multi-Cycle Treasury programs that require large allocations of #JWST telescope time to complete. Get the details: https://t.co/KCnAYH54zI