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BEACON

Object

2011 WQ4

2011WQ4 · 2/3 sources · cross-match · 2 risk div.

Risk scales

TorinoT0
Palermo-8.27

Source: JPL Sentry

JPL window: 2081-2119·ESA years: 2048-2093·Last obs: 2011-11-24

Sources

Amber = past cut. Risk 2 · fields 2.

2/3 sources · match
FieldJPL CADnot presentJPL SentryNASA/JPLESA NEOCCESA Aegis
Close-approach datethreshold: date———
Miss distanceauthreshold: 3% rel———
Relative velocitykm/sthreshold: 1% rel (ESA 0.1 km/s)———
Risk yearsaggregation windows differ (informational)—2081-21192048-2093
Cumulative impact probabilitythreshold: >2× (floor 1e-7)—1.695e-79.560e-10
Palermo Scalecumulativethreshold: |Δ| > 0.5—-8.27-10.11
Torino Scalemaxthreshold: exact—T0T0
Estimated diameter* from absolute magnitude—11 m12 m *

Detected · 2 fields · 2 risk

  • cumulativeImpactProbability [risk · >2× (floor 1e-7)] · jpl-sentry=1.69525e-7 · esa-neocc=9.56e-10Aggregation windows differ (informational): JPL 2081-2119 vs ESA 2048-2093. Cumulative threshold still applies.
  • palermoScaleCumulative [risk · |Δ| > 0.5] · jpl-sentry=-8.27 · esa-neocc=-10.11Aggregation windows differ (informational): JPL 2081-2119 vs ESA 2048-2093. Cumulative threshold still applies.