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The new MIRI Imager and Low-Resolution Spectroscopy (LRS) subarrays are designed to eliminate the primary source of electromagnetic interference (EMI) and facilitate instrument enhancements.
Build 12.3 corrects significant resampling artifacts near unresolved point sources.
Build 12.3 includes improvements to all four JWST instruments.
This JWebbinar will provide an update on the performance and calibration quality of NIRCam and MIRI.
Build 12.1 includes improvements to all four JWST instruments.
This new mode enables efficient spectroscopic observations of multiple sources in a single pointing.
Build 12.0 includes improvements for MIRI, NIRCam, and NIRISS as well as time-series observations.
New models of the count rate better predict the decrease in future observing cycles. These models will be incorporated into upcoming Build 12.1 of the pipeline (expected November 2025) and Cycle 6 of the JWST ETC.
Build 11.3 includes an improved algorithm to correct for MIRI MRS cosmic ray showers in faint sources.
New and improved calibrations are now available for both the MIRI Low-Resolution Spectrometer (LRS) fixed-slit and slitless modes.
The photometric calibration reference files for the Medium Resolution Spectrometer have been updated to reflect a more comprehensive analysis using data obtained over the course of JWST Cycles 1 and 2.
A zero exclusive access period now applies to data from MIRI observations of coronagraphic PSF reference star-associated background targets.
The improved correction is available in the latest version of the JWST Calibration Pipeline and replaces the correction provided in September 2023.
New reference files for the MIRI Low-Resolution Spectrometer (LRS) improve the wavelength and photometric calibration, as well as the aperture correction.
Investigations over the last 18 months help characterize the decline in the MIRI count rate.
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The NASA James Webb Space Telescope, developed in partnership with ESA and CSA, is operated by AURA’s Space Telescope Science Institute.