This is the CRDS Context currently in use by the pipeline calibration software.
Each cal version is associated - and guaranteed to work with - a specific build context. For JWST users, the default context is determined based on the version of JWST software you have installed, unless you explicitly override this by setting the "CRDS_CONTEXT" environment variable to a specific context or virtual context, e.g. "jwst-latest".| Start Date | Context | Status | Description |
|---|---|---|---|
| 2024-12-13 | jwst_1312.pmap | latest | Affected data : NIRSpec, MOS and FS observing modes, two outlier detection step files with updated parameters. This delivery updates NIRSpec FS and MOS parameter reference files for the outlier detection step to set improved default outlier detection parameters. This explicitly set the default outlier detection weighting to IVM and sets the masking threshold, MASKPT, to a value of zero, to more effectively identify outliers. This update also solves a previous issue with outlier detection clipping source signal data with a large range in readnoise variances, for example high resolution grating data that lies on both NRS1 and NRS2. |
| 2024-12-11 | jwst_1311.pmap | archived | Affected data - MIRI, MRS, jwst_miri_pars-detector1pipeline_0010.asdf, jwst_miri_pars-emicorrstep_0003.asdf, jwst_miri_pars-jumpstep_0007.asdf, jwst_miri_pars-jumpstep_0006.asdf, jwst_miri_pars-spec3pipeline_0008.asdf This delivery updates multiple MIRI MRS parameter reference files, affecting the default processing of all MIRI MRS data. The command to run the emicorr step by default has been removed from the emicorr parameter reference file to allow this to be set correctly by individual detector1 parameter reference files for different modes. A new detector1 parameter reference file has been created for the MIRI MRS to turn off the emicorr step for non-TSO MRS data, as the improvement to data quality is typically very minor, at the expense of appreciable runtime in some cases. Two new jump parameter reference file have been created for MRS TSO and non-TSO modes. Non-TSO modes now enable cosmic ray shower correction by default following introduction of bright-source guardrails in the stcal code in build 11.2. Finally, an updated spec3 parameter reference file changes the default to produce 12 per-band cubes instead of 4 per-channel cubes to allow for upcoming code changes implementing 1d residual fringe correction options in the default spectral extraction. This spec3 parameter reference file update also enables the pixel replacement step by default, which helps to clean up few-percent dropout artifacts in extracted spectra. |
| 2024-12-10 | jwst_1309.pmap | archived | Affected data: MIRI Imaging stage 3 source catalog photometry It was discovered that the values for F1130W and F1280W are reversed in the current MIRI abvegaoffset file, so this updated file swapped the two offset values. No other changes were made, but data for these two filters should be reprocessed through the calwebb_image3 pipeline. This only affects the catalogs output from source_catalog. |
| 2024-12-09 | jwst_1308.pmap | archived | Affected data - NIRISS, AMI modes, NRM reference file. NIRISS, WFSS modes, wfssbkg reference files. MIRI, MOS and IFU observing modes, msaoper reference file. A new NIRISS NRM reference file is being delivered because it is a more accurate representation of the AMI mask geometry. New NIRISS GR150C and GR150R grism background reference files are for the F090W, F115W, F150W, F200W filters. This delivery is needed to reduce background variation and artifacts present in the previous reference files. For MIRI, two new failed open shutters Q4 Col 252 and Row 72, and Q1 Col 337 and Row 89 have been observed in the monitoring data. A new msaoper reference file is being delivered to CRDS to ensure that the pipeline accurately accounts for the contamination resulting from the missed failed open shutters during processing. For more details regarding individual deliveries, please see the Context History section and select all contexts on the CRDS homepage. |