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BEACON

Object

2021 LL15

2021LL15 · 2/3 sources · cross-match · 2 risk div.

Risk scales

TorinoT0
Palermo-6.20

Source: JPL Sentry

JPL window: 2050-2107·ESA years: 2074-2074·Last obs: 2021-06-18

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)2050-21072074-2074
Cumulative impact probabilitythreshold: >2× (floor 1e-7)3.093e-63.540e-9
Palermo Scalecumulativethreshold: |Δ| > 0.5-6.20-9.17
Torino Scalemaxthreshold: exactT0T0
Estimated diameter* from absolute magnitude18 m20 m *

Detected · 2 fields · 2 risk

  • cumulativeImpactProbability [risk · >2× (floor 1e-7)] · jpl-sentry=0.0000030927815 · esa-neocc=3.54e-9Aggregation windows differ (informational): JPL 2050-2107 vs ESA 2074-2074. Cumulative threshold still applies.
  • palermoScaleCumulative [risk · |Δ| > 0.5] · jpl-sentry=-6.2 · esa-neocc=-9.17Aggregation windows differ (informational): JPL 2050-2107 vs ESA 2074-2074. Cumulative threshold still applies.