Reverification and defect evolution in the LSST Camera
POSTER
Abstract
The LSST Camera (LSSTCam), the largest ever constructed, arrived at the Rubin Observatory at the summit of Cerro Pachón, Chile, in May 2024 and began re-verification in September 2024. All LSSTCam re-verification data is processed through calibration products (CP) and electro-optical (EO) analysis pipelines. The dark and bright defect data products from EO pipelines are two vital metrics for characterizing LSSTCam performance, enabling the quantification of sensor imperfections and their evolution over time. Defect data products have existed since early integration tests but have not been studied comprehensively across different test sites. We also had an impediment in previous testing campaigns, resulting in fine-scale variations in flat-field projections. Here, we report LSSTCam re-verification results, the evolution of defects in the camera from early integration to summit re-verification, the mitigation of flat-field variation in EO testing, and the current status of commissioning LSSTCam into the Simonyi Survey Telescope.
*This material is based upon work supported in part by the National Science Foundation through Cooperative Agreement AST-1258333 and Cooperative Support Agreement AST-1202910 managed by the Association of Universities for Research in Astronomy (AURA), and the Department of Energy under Contract No. DE-AC02-76SF00515 with the SLAC National Accelerator Laboratory managed by Stanford University. Additional Rubin Observatory funding comes from private donations, grants to universities, and in-kind support from LSST-DA Institutional Members.
Presenters
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Sean P MACBRIDE
- University of zurich