Alert score α (computed in this page, not server-side): freshness = min(age/SLO,3)/3 ·
errors & stale = 0.95 · DLQ = min(n/5,1) · informational rows ≤ 0.15. Rows sort by α.
Counts labeled ARCHIVE are ClickHouse lifetime totals, not live aircraft — the old
Ops Board's "LIVE POSITIONS" mislabel is retired here. Kafka numbers are broker
offsets (ground truth), courtesy of the P2-5 monitor fix. flight data STALE is the
known AviationStack drought, expected until 2026-08-01.
Wall mode: ?wall=1 · old Ops Board