LSST Science Pipelines
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Data access and pipeline middleware¶

  • Frequently asked questions
    • When should I use each of the query methods/commands?
      • queryCollections
      • queryDatasetTypes
      • queryDimensionRecords
      • queryDatasets
      • queryDataIds
    • Where can I find documentation for command-line butler queries?
    • Why do queries return duplicate results?
    • Why are some keys (usually filters) sometimes missing from data IDs?
    • How do I avoid errors involving queries for calibration datasets?
    • How do I fix an empty QuantumGraph?
    • What do I do if a query method/command or pipetask graph generation is slow?

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Financial support for LSST comes from the National Science Foundation (NSF) through Cooperative Agreement No. 1258333, the Department of Energy (DOE) Office of Science under Contract No. DE-AC02-76SF00515, and private funding raised by the LSST Corporation. The NSF-funded LSST Project Office for construction was established as an operating center under management of the Association of Universities for Research in Astronomy (AURA). The DOE-funded effort to build the LSST camera is managed by the SLAC National Accelerator Laboratory (SLAC).