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BEACON

Object

2021 GC13

2021GC13 · 2/3 sources · cross-match · 2 risk div.

Risk scales

TorinoT0
Palermo-8.01

Source: JPL Sentry

JPL window: 2117-2122·ESA years: 2118-2118·Last obs: 2021-04-24

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)—2117-21222118-2118
Cumulative impact probabilitythreshold: >2× (floor 1e-7)—2.331e-63.280e-9
Palermo Scalecumulativethreshold: |Δ| > 0.5—-8.01-10.78
Torino Scalemaxthreshold: exact—T0T0
Estimated diameter* from absolute magnitude—5 m6 m *

Detected · 2 fields · 2 risk

  • cumulativeImpactProbability [risk · >2× (floor 1e-7)] · jpl-sentry=0.000002330503 · esa-neocc=3.28e-9Aggregation windows differ (informational): JPL 2117-2122 vs ESA 2118-2118. Cumulative threshold still applies.
  • palermoScaleCumulative [risk · |Δ| > 0.5] · jpl-sentry=-8.01 · esa-neocc=-10.78Aggregation windows differ (informational): JPL 2117-2122 vs ESA 2118-2118. Cumulative threshold still applies.