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- Jun 30, 202850% CONFIDENCEfrom the source
Rubin Observatory Delivers Its First LSST Data Release
- Data Release 1 is derived from Data Release Processing of the first year of LSST data, following the baseline survey strategy[1]
- The LSST began on 2026-06-29, and processing a year of data is estimated to take about a year, implying DR1 roughly two years after the effective start[1]
- Rubin warns the exact boundaries are "determined by survey performance and scientific readiness rather than a fixed calendar date"[1]
- Ahead of DR1 the first two years of the survey release nightly Processed Visit Images and their source catalogues[1]
- The earlier data previews lead up to it: EDP2 was scheduled for release on 2026-07-27, with DP2 expected in the October to December 2026 range[1]
References 268% CONFIDENCE
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]50%rtn-011.lsst.iortn-011.lsst.io· Posted Sep 21, 2026· Starts Jun 30, 2028 ✓· 50% of score
Rubin's early-science plan gives the LSST start as 2026-06-29 and says processing one year of data "is estimated to require approximately one year", which "implies an expected DR1 delivery approximately two years after the effective start" - while warning the boundaries are set by "survey performance and scientific readiness rather than a fixed calendar date".
- [2]85%Early Science Program - Rubin Observatoryrubinobservatory.org· Added Sep 21, 2026· 50% of score
The observatory's own early-science page describing the programme through DR1.[1]
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