Vera C. Rubin Observatory Team, Tatiana Acero-Cuellar, Emily Acosta, Christina L. Adair, Prakruth Adari, Jennifer Adelman-McCarthy, A. Alexov, Russ Allbery, Robyn Allsman, Yusra AlSayyad, Jhonatan Amado, Nathan Amouroux, Pierre Antilogus, Alexis Aracena Alcayaga, G. Aravena-Rojas, Claudio H. Araya Cortes, E Aubourg, T. S. Axelrod, John Banovetz, Carlos Barria, Amanda E. Bauer, Brian Bauman, Ellen Bechtol, K. Bechtol, A. C. Becker, Valerie R. Becker, Mark G. Beckett, Eric C. Bellm, Pedro H. Bernardinelli, Federica Bettina Bianco, Robert D. Blum, Joanne Bogart, Adam Bolton, Michael T. Booth, James Bosch, A. Boucaud, D. Boutigny, Robert A. Bovill, Andrew Bradshaw, Johan Bregeon, M. Brescia, Brian J. Brondel, Alexander Broughton, Audrey Budlong, Dimitri Buffat, R. Canestrari, Neven Čaplar, Jeffrey L. Carlin, Ross Ceballo, Colin Orion Chandler, Chihway Chang, Glenaver Charles-Emerson, Hsin-Fang Chiang, J. Chiang, Yumi Choi, E. Christensen, Charles F. Claver, Andy W. Clements, Joseph J. Cockrum, J. Cohen-Tanugi, Franco Colleoni, C. Combet, Andrew J. Connolly, Julio Eduardo Constanzo Cordova, Hans E Contreras, John Franklin Crenshaw, Sylvie Dagoret-Campagne, Scott Daniel, Felipe Daruich, Guillaume Daubard, Greg Daues, Erik Dennihy, Stephanie J. H. Deppe, Seth W. Digel, Peter E. Doherty, C. Doux, Alex Drlica-Wagner, Gregory P. Dubois-Felsmann, Amir E. Bazkiaei, Frossie Economou, O. Eiger, Lukas Eisert, Alan M. Eisner, Anthony Englert, Baden Erb, Juan A. Fabrega, Parker Fagrelius, Kevin Fanning, Angelo Fausti Neto, P. S. Ferguson, Agnès Ferté, Krzysztof Findeisen, Merlin Fisher-Levine, Gloria Fonseca Alvarez, Michael D. Foss, D. Fouchez, Dan C. Fuchs, Shenming Fu, É. Gangler, Igor Gaponenko
Abstract We present Rubin Data Preview 1 (DP1), the first data from the National Science Foundation–Department of Energy Vera C. Rubin Observatory, comprising raw and calibrated single-epoch images, coadds, difference images, detection catalogs, and ancillary data products. DP1 is based on 1792 optical–near-infrared exposures acquired over 48 distinct nights by the Rubin Commissioning Camera (LSSTComCam) on the Simonyi Survey Telescope at the Summit Facility on Cerro Pachón, Chile in late 2024. DP1 covers ∼15 deg 2 distributed across seven roughly equal-sized noncontiguous fields, each independently observed in six broad photometric bands, ugrizy . The median FWHM of the point-spread function across all bands is approximately 1 . ″ 14, with the sharpest images reaching about 0 . ″ 58. The 5 σ point-source depths for coadded images in the deepest field, the Extended Chandra Deep Field South, are u = 24.55, g = 26.18, r = 25.96, i = 25.71, z = 25.07, and y = 23.1. Other fields are no more than 2.2 mag shallower in any band, where they have nonzero coverage. DP1 contains approximately 2.3 million distinct astrophysical objects, of which 1.6 million are extended in at least one band in coadds, and 431 solar system objects, of which 93 are new discoveries. DP1 is approximately 3.5 TB in size and is available to Vera C. Rubin Observatory data rights holders via the Rubin Science Platform, a cloud-based environment for the analysis of petascale astronomical data. While small compared to future LSST releases, its high quality and diversity of data support a broad range of early science investigations ahead of full operations in 2026.