
During a two-month period, Thomas Bell contributed to the spacetelescope/jwst repository by enhancing data processing and calibration workflows for astronomical observations. He implemented a new feature in the JWST photometry pipeline to support DN/s data units, integrating gain reference file logic and updating core calculations to ensure accurate flux calibration. Bell also resolved a critical bug in Long-Slit Spectroscopy by refining WCS wavelength extension logic, improving data integrity for LRS observations. His work leveraged Python, Astropy, and backend development skills, demonstrating depth in both data reduction and pipeline robustness, and directly addressed calibration accuracy and data compatibility challenges in astronomy software.

2025-05 Monthly Summary: Focused on expanding data unit support and robustness of the JWST photometry pipeline. Delivered a new capability to process DN/s data units in tso_photometry by using a gain reference file to convert DN/s to flatfielded electrons. This work improves calibration accuracy and widens data compatibility, enabling scientists to work with a broader range of observations without manual unit conversions.
2025-05 Monthly Summary: Focused on expanding data unit support and robustness of the JWST photometry pipeline. Delivered a new capability to process DN/s data units in tso_photometry by using a gain reference file to convert DN/s to flatfielded electrons. This work improves calibration accuracy and widens data compatibility, enabling scientists to work with a broader range of observations without manual unit conversions.
April 2025 monthly summary: Delivered a critical bug fix in spacetelescope/jwst for Long-Slit Spectroscopy WCS wavelength extension. By invoking get_wavelengths to retrieve wavelengths and applying them to the output model in assign_wcs, LRS observations now have accurate WCS calculations. This improves data quality, reduces downstream calibration issues, and enhances reproducibility of spectral analyses. Key change committed: 47dfb2aef6f27a41eacb27e9b0b165e2a73ec4d3.
April 2025 monthly summary: Delivered a critical bug fix in spacetelescope/jwst for Long-Slit Spectroscopy WCS wavelength extension. By invoking get_wavelengths to retrieve wavelengths and applying them to the output model in assign_wcs, LRS observations now have accurate WCS calculations. This improves data quality, reduces downstream calibration issues, and enhances reproducibility of spectral analyses. Key change committed: 47dfb2aef6f27a41eacb27e9b0b165e2a73ec4d3.
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