| Start Date | Context | Status | Description |
|---|---|---|---|
| 2026-04-14 | jwst_1535.pmap | latest | Affected data - NIRSpec, IFU modes taken with the PRISM, fflat reference mapping. During testing of the JWST calibration pipeline build 12.3, an issue was discovered with the newly delivered NIRSpec IFU PRISM F-flat, 0184, leading to flux calibrations off by up to 10-20 percent at red wavelengths. This delivery of a new fflat rmap reverts the IFU PRISM F-flat reference file back to the previous version, 0101. Because the previous F-flat reference file flux calibration was derived prior to the recent instrument model updates, this may still result in PRISM fluxes that are off by up to 1-2 percent at the reddest, more than 4.5 um, and bluest, less than 1 um, wavelengths. Future IFU PRISM F-flat calibrations will be derived using the updated instrument model and address any inconsistencies. New system_calver file for jwst software version 2.0.0, which corresponds to DMS Build 12.3. This file contains the pinned context for Build 12.3, jwst_1535.pmap, to be used for processing and reprocessing of all JWST data upon installation of jwst version 2.0.0 into operations. |
| 2026-04-06 | jwst_1533.pmap | archived | Affected data - MIRI, imager SUB128 modes, RSCD reference file. An updated RSCD file for MIRI imaging is being delivered for use with build 12.3. During testing of the JWST calibration pipeline build 12.3, an issue was found for a SUB128 image with 6 groups. The updated RSCD correction for build 12.3 with the new RSCD reference file skipped 3 groups at the start of the ramp and the lastframe step skipped the last group, which left only groups 4 and 5 to be used for creation of the rate image. This, in conjunction with a dark file that does not correct for EMI 390 Hz noise, re-introduced EMI noise into the image. For this build, the RSCD file will revert the values of the number of frames to skip for RSCD back to those for the previous build for SUB128 data. New system_calver file for jwst software version 2.0.0, which corresponds to DMS Build 12.3. This file contains the pinned context for Build 12.3, jwst_1533.pmap, to be used for processing and reprocessing of all JWST data upon installation of jwst version 2.0.0 into operations. |
| 2026-03-31 | jwst_1531.pmap | archived | Affected modes - NIRISS, Imaging and WFSS modes, pars-cleanflickernoisestep reference files. The parameter reference files for the clean_flicker_noise step for imaging and WFSS are being redelivered because the previous incorrectly delivered version contained a parameter that caused an error in the pipeline. These files are needed in order for the step to perform the automatic selection of optimal parameter values for this step based on the scene, in Imaging and WFSS modes. New system_calver file for jwst software version 2.0.0, which corresponds to DMS Build 12.3. This file contains the pinned context for Build 12.3, jwst_1531.pmap, to be used for processing and reprocessing of all JWST data upon installation of jwst version 2.0.0 into operations. |
| 2026-03-30 | jwst_1529.pmap | archived | Affected data - NIRISS, SOSS modes, pars-detector1pipeline reference file. Delivering a pars-detector1pipeline reference file for NIS_SOSS TSO visits to turn on the CleanFlickerNoiseStep by default, as a new method for SOSS is being added to the step in the new build. |