JWST JDox Latest Updates
Lists of recently updated articles in the JWST User Documentation (JDox) website are provided in this page.
On this page
All articles related to the Cycle 5 Call for Proposals have been reviewed and updated with the latest information. Only major updates are mentioned below.
New JDox articles since January 1, 2025
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JWST Call for Proposals for Cycle 5 (and child pages) |
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Notable updates to JDox articles since Jan 1, 2025
Updated
| Article | Updated on | Update description |
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| Observatory | ||
| JWST Guide Stars | | Added information on identifying guide stars & reference stars |
| JWST Fine Guide Stability | | Added info on GS data products, jitter products, measuring jitter, and jitter tools |
| Instruments → MIRI | ||
| MIRI Wide Field Slitless Spectroscopy |
| Added section on variations along the field of view |
| MIRI Imaging Dithering |
| Refined the recommended dither pattern to be the Cycling-Large pattern. |
| Refined the recommended dither pattern to be the 4-point Cycling-Large pattern | |
| MIRI Bright Source Limits |
| Updated figure on MIRI bright source limits for point sources to include WFSS mode |
| MIRI Sensitivity |
| Added additional text about MRS sensitivity evolution and discrepancies with ETC 5.0 and updated the figure to include WFSS |
| MIRI Medium Resolution Spectroscopy |
| Figure 3 (Resolving power as a function of wavelength for MIRI MRS) updated |
| MIRI Detector Subarrays |
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| MIRI TSO Recommended Strategies |
| Wording adjusted for clarification, and more details about saturation added |
| MIRI LRS Slit Target Acquisition |
| Figure 1 updated to indicate that the verification image no longer needs to use the TA filter |
| MIRI Coronagraphic Imaging APT Template |
| Updated section about "Additional Justification" checkbox to clarify its use, and the requirement that the Phase I proposal must have provided detailed justification for not specifying a dedicated PSF reference |
| MIRI Imaging Recommended Strategies |
| Updated guidance to match current MIRI best practices |
| MIRI Imaging Mosaics |
| Changed the section on subarrays to reflect the new default overlap of 10% |
| Instruments → NIRCam | ||
| NIRCam Wide Field Slitless Spectroscopy APT Template |
| Added updated Target Placement options |
| Updated parallel section with pure parallel information | |
| NIRCam Imaging APT Template |
| Added updated Target Placement options |
| NIRCam Imaging Recommended Strategies |
| Updated the "Mind the Gap" section to reflect updated Target Placement options in APT |
| Updated recommendation for compact target placement on the detector | |
| NIRCam Primary Dithers |
| Added 8NIRSPECTIGHT dither pattern info to the NIRCamDitherPatterns.zip file, Figure 3, and the text. |
| NIRCam WFSS Backgrounds |
| Updated page to include information about new WFSS backgrounds |
| NIRCam Point Spread Functions |
| Added plots and values for resampled EE measurements |
| NIRCam Coronagraphic Target Acquisition |
| Added an information block describing automated and recommended application of TA offsets |
| NIRCam Short Wavelength Grism Time Series Observing Strategies |
| Updates for APT 2025.3, specifically availability of new DHSn readout patterns, updated subarray dimensions, and syncing of APT and ETC subarray names in those GUIs. |
| NIRCam Rogue Path Planning Tool for Avoiding 'Claws' Artifacts |
| Added output_directory argument to create_v3_vs_flux_plot() for compatibility across python environments. |
| NIRCam Multistripe Subarrays for Grism Time Series Spectroscopy |
| Added Figure 2 |
| APT Export Files |
| Added information about the new records file |
| NIRCam Detector Readout Patterns |
| Added note about new DHS-specific readout patterns |
| NIRCam Grism Time-Series APT Template |
| Added note about new DHS-specific readout patterns |
| NIRCam Short Wavelength Grism Time Series |
| Added note about new DHS-specific readout patterns |
| NIRCam Filters |
| Updated throughput curves, figures, and table values with V7 values |
| Instruments → NIRISS | ||
| NIRISS AMI Recommended Strategies |
| Updated charge migration signal limit to 23,300e- based on measurements from recent in-flight data in the F480M filter. Also included emphasized suggestion to stay below this limit in every integration. |
| NIRISS Aperture Masking Interferometry |
| Replaced the AMI flat field errors section with a section that discusses AMI systematics and contrast limits |
| NIRISS Point Spread Functions |
| Simplified text for STPSF and re-made Figures 1, 2 using STPSF 2.0. |
| Instruments → NIRSpec | ||
| NIRSpec MOS Operations - Pre-Imaging Using NIRCam |
| Updated text and Table 1 to include new dither pattern 8NIRSPECTIGHT |
| Updated the discussion of pre-imaging and archiving of those images. | |
| Updated the pre-imaging selections and discussion. | |
| IFU, MOS, and FS limiting sensitivity figures replaced for ETC v5.0 | |
| Replaced figures 3 and 5 due to changes in APT template | |
| Updated several places for clarity and a revision to the roll angle errors | |
| Updated text to clarify FS nodding and pipeline reduction | |
| Removed redundant section and added blind pointing capability for target acquisition. | |
| Re-organized sections to reflect recent changes to the Planner with the addition of Pointing Mode options and other changes made in APT 2024.7 and APT 2025.1. Added new figures 1, 5, 6, and 7 | |
| Proposal Preparation → Methods and Roadmaps | ||
| JWST Parallel Observations |
| Extended the table of previous pure parallel programs in FAQ #10. Clarified the purpose of the jwst-pure-parallel package in the final sentence of FAQ #9. |
| Added new 5 GB limit on data excess after attachment. Revamped FAQ #8 and #9, linking to the new jwst-pure-parallel package. Added new FAQ #13 about the cost of pure parallels. | |
| JWST Time-Series Observations Roadmap |
| New information added about NIRISS multistripe subarrays to Table 2 |
| JWST Time-Series Observations TSO Saturation |
| Updated to include reference for multistripe SOSS subarrays |
| JWST Time-Series Observations Noise Sources |
| Added context on NIRISS SOSS backgrounds |
| Moving Target Scattered Light Considerations |
| Added a Jupyter notebook for checking giant planet satellite observations with the NIRSpec IFU. Removed the discussion of extended PSFs |
| Moving Target Acquisition and Tracking |
| Added information about shadow observations for Cycle 5 |
| HCI Coronagraphic Sequences |
| Changed recommendations from pre-launch to post-launch, now that PSF stability is known |
| Proposing Tools | ||
| Proposal Planning Video Tutorials |
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| Proposing Tools → Exposure Time Calculator | ||
| JWST ETC Saturation |
| Updated NIRISS AMI/WFSS/Imaging saturation values for ETC 5.0 |
| Proposing Tools → Astronomer's Proposal Tool | ||
| APT Coordinated Parallel Observations |
| Updated to include the NIRSpec IFU + NIRCam Imaging combination which is new for Cycle 5. |
| Proposing Tools → JWST Other Tools | ||
| JWST Moving Target Visibility Tool Help |
| Updated for JWST General Target Visibility Tool (GTVT) version 1.1.1. |
| JWST General Target Visibility Tool Help |
| Updated for JWST General Target Visibility Tool (GTVT) version 1.1.1. |
| Data → Accessing JWST Data | ||
| Accessing JWST Data |
| Added information about calibration software versions |
| JWST Time Definitions |
| Provided clarification for Level 3 FITS header values |
Data → Science Calibration Pipeline | ||
| Added NIRISS SOSS notebook | |
| Updated list of notebooks in JWST pipeline notebooks repository | |
| Added information about customizing logging | |
| Updated for build 12.0 | |
| Updated examples, and noted deprecation of not specifying either .call() or .run() | |
Data → JWST Calibration Status | ||
| Updated list of recent calibration updates, description of astrometric calibration, references. | |
| Updated information on the imager count rate loss for Cycle 5. | |
Data → Known issues with JWST data | ||
| Updated section "Useable wavelength range, spectral fold over and leak in LRS slitless" | |
| Problems with blind pointing with LRS slit has been solved | |
| Added section on FGS-MIRI alignment issue | |
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| Updated issue NS-MOS05 to point to improvements gained with the new MOS S-flats and refer to statistics from preliminary results evaluating the state of remaining MOS field dependent variations | |
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| Added the section describing the picture frame effect | |
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| Updated issues NS-BOTS03 and NS-BOTS04 language to be consistent with other NIRSpec issues. | |
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| Updated section on 1/f noise | |
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| Added a pipeline note on how to diagnose and treat overflagging in outlier_detection. | |
| Added note on FGS-MIRI alignment calibration | |
| NIRCam Scattered Light Artifacts |
| Added new section on bubbles artifact and added example of smaller primary mirror artifacts |
| Article rewritten for build 11.3, added new information about corrections for MIRI MRS | |
| Updated for build 11.3, revised discussion of cosmic ray showers | |
| Added note about limiting performance for large numbers of groups | |
| Moved retired issues NS-G01, NS-G04, NS-G05, NS-G07, NS-G08 to a separate expandable table. | |
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| Data → Post-Pipeline Data Analysis | ||
| Included JDAT ecosystem explanation at the top of the article | |
Articles updated prior to Jan 1, 2025
Articles updated between Jan 1 and December 31, 2024 are listed at JDox Updates from 1 Jan - 31 Dec 24
Articles updated between June 1 and December 31, 2023 are listed at JDox Updates 1 June - 31 December 2023
Articles updated between January 28 and May 31, 2023 are listed at JDox Updates 28 Jan - May 31 2023.
Articles updated prior to January 27 2023 are listed at JDox Updates 12 July - 6 December 2022.