Accès ouvert déclaré
2026
preprint
The On-Sky Performance of the LSST Camera CCD Array
Sean Patrick MacBride, Aaron Roodman, Stuart Marshall, Yousuke Utsumi, Kevin Fanning, John Banovetz, Theo Schutt, Alexander Broughton, Shuang Liang, Andrew P. Rasmussen, Pierre Antilogus, J. G. Thayer, Homer Neal, A. S. Johnson, P. Astier, S. W. Digel, Andrew Bradshaw, Johan Bregeon, J. Chiang, C. Combet, G. Dargaud, Johnny H. Esteves, M Soares-Santos, Thibault Guillemin, Claire Juramy-Gilles, Craig Lage, Myriam Migliore, Daniel Polin, J. Anthony Tyson, Renee Nichols, Steven M. Ritz, E S Rykoff, A. Yu. Shestakov, Adam Snyder, Max Turri, Duncan Wood, T Tanja Lange, Martin Nordby, Hannah Mary Margaret Pollek, Shawn Osier, Boyd Bowdish, Diane Hascall, Margaux Lopez, Scott P. Newbry, Juan Carlos Lazarte, V Vien Lee, Michael Silva, Dave Kiehl, Andrew Hau, Tom Nieland, Nico Linton, David Shelley, Yongqiang, Qiu, Mark Freytag, Stephen Cisneros, Chris Mendez, Stephen A. Tether, Alan M. Eisner, Dmitry Onoprienko, Owen Saxton, K. Reil, Vincent J. Riot, Justin Wolfe, Scott Winters, Brian Bauman, W. Wahl, P. O’Connor, Françoise Virieux, Alexandre Boucaud, Camille Parisel, E Aubourg, Eric Lagorio, P. Karst, Aurelien Marini, Didier Laporte, F. Vezzu, Guillaume Daubard, P. Breugnon, Tim W. Bond, E Charles, Richard Dubois, S. M. Kahn, A. A. Plazas, Rafe H. Schindler, Joanne Bogart, Hye Yun Park, Aurélien Barrau, C. Waters, Merlin Fisher-Levine, Antoine Bernard, Mile Kusulja
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Le résumé fourni par la source
The focal plane of the LSST Camera contains 189 individual science CCDs, arranged into 21 raft tower modules, along with 4 wavefront and 8 guider CCDs located in 4 additional corner RTMs. Altogether, the LSST Camera CCDs compose the largest focal plane ever constructed. The LSST Camera is the primary instrument of Rubin Observatory, which will begin the Legacy Survey of Space and Time in 2026. In this paper, we describe the on-sky performance of the LSST Camera CCDs, from receipt at NSF/DOE Vera C. Rubin Observatory in May 2024 to on-sky observations during the first year of operations. We discuss the process to establish functionality of several CCDs which were affected by an electrical short and faulty analog-digital converter, optimizations of readout timing in response to changes in the survey strategy, and implementation of enhanced focal plane safety measures through an active clearing mechanism on the CCDs. Finally, we discuss sensor features observed on-sky, and global performance during the first year of operations. The operations to date of the LSST Camera CCDs have demonstrated the capability of performing a wide, fast, and deep optical imaging survey of the entire southern sky at the Rubin Observatory.
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