spacetelescope/jwst
Nov 2024 – Sep 2025
9 Months active
Languages Used
NumpyPythonRSTrstTOMLreStructuredTexttextC
Technical Skills
Astronomy SoftwareBug FixCode RefactoringCode ReviewData Model ManipulationData Processing
jemorrison
PROFILE
Jemorrison
Over nine months, Morrison contributed to the spacetelescope/jwst repository by developing and refining advanced data processing features for astronomical pipelines. He implemented spectral fringe correction, non-linear wavelength cube support, and robust pixel replacement logic, focusing on data integrity and scientific accuracy. Using Python, C, and Astropy, Morrison enhanced test coverage, improved code quality through refactoring and linting, and maintained detailed documentation. His work addressed complex calibration and data reduction challenges, integrating new models and error handling to align with evolving scientific requirements. These efforts improved pipeline reliability, maintainability, and enabled more flexible, high-quality data products for JWST science teams.
Overall Statistics
Feature vs Bugs
71%Features
Repository Contributions
164Total
Bugs
19
Commits
164
Features
47
Lines of code
35,800
Activity Months9
Your Network
27 people
Work History
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025: Delivered NIRSpec prism IFU non-linear wavelength cubes for multi output type in spacetelescope/jwst. Implemented non-linear wavelength ranges in the cube-building logic, and updated docs and tests to cover non-linear wavelength cubes for prism data with multi output type. This expands flexible data products, improves pipeline reliability, and enables advanced science with prism datasets. The work aligns with JP-4074 (commit 5ebbfbc64013c5c78dc4364fc2f1d99b5fb0e1f1).
1 Commits • 1 Features
Sep 1, 2025September 2025: Delivered NIRSpec prism IFU non-linear wavelength cubes for multi output type in spacetelescope/jwst. Implemented non-linear wavelength ranges in the cube-building logic, and updated docs and tests to cover non-linear wavelength cubes for prism data with multi output type. This expands flexible data products, improves pipeline reliability, and enables advanced science with prism datasets. The work aligns with JP-4074 (commit 5ebbfbc64013c5c78dc4364fc2f1d99b5fb0e1f1).
September 2025
June 2025
15 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for spacetelescope/jwst: Delivered architectural and quality improvements focused on code quality and test reliability. Key changes include absolute import path normalization and linting enhancements, plus hardening of the test suite with pytest tmp_path. These efforts reduce import errors, improve maintainability, and boost CI stability. Also updated the changelog to document the removal of relative imports. Collectively, these results improve developer onboarding, reliability of the pipeline, and overall product quality.
June 2025
15 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for spacetelescope/jwst: Delivered architectural and quality improvements focused on code quality and test reliability. Key changes include absolute import path normalization and linting enhancements, plus hardening of the test suite with pytest tmp_path. These efforts reduce import errors, improve maintainability, and boost CI stability. Also updated the changelog to document the removal of relative imports. Collectively, these results improve developer onboarding, reliability of the pipeline, and overall product quality.
May 2025
3 Commits • 2 Features
May 1, 2025Monthly summary for 2025-05 focusing on spacetelescope/jwst work: key features delivered, major fixes, impact, and skills demonstrated. Highlights include fringe correction module maintenance for accuracy and NIRSPEC dark model support, with code quality improvements and clearer data model alignment.
3 Commits • 2 Features
May 1, 2025Monthly summary for 2025-05 focusing on spacetelescope/jwst work: key features delivered, major fixes, impact, and skills demonstrated. Highlights include fringe correction module maintenance for accuracy and NIRSPEC dark model support, with code quality improvements and clearer data model alignment.
May 2025
April 2025
56 Commits • 17 Features
Apr 1, 2025April 2025 monthly summary for spacetelescope/jwst focusing on test coverage, persistence improvements, and code quality. Key features delivered include expanded testing (unit and regression tests) with new coverage for the straylight step, data persistence enhancements (saving shower_model and primary save behavior), and extensive documentation and codestyle refinements to boost maintainability and release readiness. Major bugs fixed include corrections of typos, filename formation fixes, and parameter setup adjustments, reducing user-facing errors and improving stability. Overall, these contributions increase reliability of data processing, reduce risk of regressions, and accelerate delivery cycles. Skills demonstrated include Python testing (unit and regression tests), code quality and refactoring, documentation and changelog practices, and collaborative code-review driven development.
April 2025
56 Commits • 17 Features
Apr 1, 2025April 2025 monthly summary for spacetelescope/jwst focusing on test coverage, persistence improvements, and code quality. Key features delivered include expanded testing (unit and regression tests) with new coverage for the straylight step, data persistence enhancements (saving shower_model and primary save behavior), and extensive documentation and codestyle refinements to boost maintainability and release readiness. Major bugs fixed include corrections of typos, filename formation fixes, and parameter setup adjustments, reducing user-facing errors and improving stability. Overall, these contributions increase reliability of data processing, reduce risk of regressions, and accelerate delivery cycles. Skills demonstrated include Python testing (unit and regression tests), code quality and refactoring, documentation and changelog practices, and collaborative code-review driven development.
March 2025
34 Commits • 11 Features
Mar 1, 2025March 2025 performance summary for spacetelescope/jwst with a focus on stability, data quality, and maintainability. Delivered feature improvements and fixes that enhance spectral handling, data calibration, and test coverage, while aligning documentation and project configuration with mainline practices. The work reduces risk in production pipelines and improves reproducibility for MRSMultiSpecModel and related MIRI workflows.
34 Commits • 11 Features
Mar 1, 2025March 2025 performance summary for spacetelescope/jwst with a focus on stability, data quality, and maintainability. Delivered feature improvements and fixes that enhance spectral handling, data calibration, and test coverage, while aligning documentation and project configuration with mainline practices. The work reduces risk in production pipelines and improves reproducibility for MRSMultiSpecModel and related MIRI workflows.
March 2025
February 2025
29 Commits • 9 Features
Feb 1, 2025February 2025 monthly summary for spacetelescope/jwst. Focused on code hygiene, spectral extraction accuracy, and test/documentation quality to improve reliability, maintainability, and alignment with stdatamodels MIRI LRS specs. Delivered targeted updates to lint/config hygiene, MIRI LRS region handling, and spectral RF columns, while applying review feedback and strengthening tests and documentation.
February 2025
29 Commits • 9 Features
Feb 1, 2025February 2025 monthly summary for spacetelescope/jwst. Focused on code hygiene, spectral extraction accuracy, and test/documentation quality to improve reliability, maintainability, and alignment with stdatamodels MIRI LRS specs. Delivered targeted updates to lint/config hygiene, MIRI LRS region handling, and spectral RF columns, while applying review feedback and strengthening tests and documentation.
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for spacetelescope/jwst focused on implementing and integrating spectral fringe correction for MIRI MRS IFU data. Key changes were activated by default to improve data quality across flux, surface brightness, and background outputs, and the output model was expanded to MrsSpecModel to carry residual fringe information. The work enhances data fidelity, reduces post-processing overhead, and enables earlier, more reliable science results from JWST observations.
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for spacetelescope/jwst focused on implementing and integrating spectral fringe correction for MIRI MRS IFU data. Key changes were activated by default to improve data quality across flux, surface brightness, and background outputs, and the output model was expanded to MrsSpecModel to carry residual fringe information. The work enhances data fidelity, reduces post-processing overhead, and enables earlier, more reliable science results from JWST observations.
January 2025
December 2024
7 Commits • 1 Features
Dec 1, 2024Month: 2024-12 — Focused on delivering robust data integrity improvements and maintainability for spacetelescope/jwst. Key work centered on enhancing Pixel Replacement Filename Handling and Invariant Filename Integrity, alongside targeted code cleanup to reduce technical debt. Delivered in-place model updates that preserve associations and expanded test coverage for invariant_filename handling, while maintaining a strong emphasis on test-driven quality and pipeline reliability.
December 2024
7 Commits • 1 Features
Dec 1, 2024Month: 2024-12 — Focused on delivering robust data integrity improvements and maintainability for spacetelescope/jwst. Key work centered on enhancing Pixel Replacement Filename Handling and Invariant Filename Integrity, alongside targeted code cleanup to reduce technical debt. Delivered in-place model updates that preserve associations and expanded test coverage for invariant_filename handling, while maintaining a strong emphasis on test-driven quality and pipeline reliability.
November 2024
18 Commits • 4 Features
Nov 1, 2024November 2024 performance highlights for spacetelescope/jwst. Delivered key features, robust test coverage, and reliability improvements across RSCD processing, MIRI LRS, and data quality tooling, with focused maintenance to improve maintainability and documentation.
18 Commits • 4 Features
Nov 1, 2024November 2024 performance highlights for spacetelescope/jwst. Delivered key features, robust test coverage, and reliability improvements across RSCD processing, MIRI LRS, and data quality tooling, with focused maintenance to improve maintainability and documentation.
November 2024
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Quality Metrics
Correctness89.2%
Maintainability90.8%
Architecture83.4%
Performance81.8%
AI Usage20.0%
Skills & Technologies
Programming Languages
CNumpyPythonRSTTOMLreStructuredTextrsttext
Technical Skills
API DesignAlgorithm ImplementationAstronomyAstronomy SoftwareAstrophysics SoftwareAstropyBackend DevelopmentBug FixC DevelopmentC ProgrammingC/C++Code CleanupCode FormattingCode LintingCode Linting Configuration
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