For the complete documentation index, see llms.txt. This page is also available as Markdown.

At which cycle of NextSeq 500/550 are run metrics calculated?

The following diagram contains information on calculations made during the first 25 cycles during a NextSeq 500/550 run:

  • When is the final cluster density calculated? Cycle 5

  • When does template generation complete? Cycle 5

  • When is phasing/prephasing calculated? Cycle 12

  • When is base calling determined? Cycle 12

  • When is clusters passing filter (PF) percentage determined? Cycle 25

  • When is Q30 calculated (quality scoring)? Cycle 25

Figure 1: Diagram illustrating sequencing run metric availability by cycle on the NextSeq 500/550.

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