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BEACON

Object

2021 GM1

2021GM1 · 2/3 sources · cross-match · 2 risk div.

Risk scales

TorinoT0
Palermo-7.71

Source: JPL Sentry

JPL window: 2121-2122·ESA years: 2117-2118·Last obs: 2021-05-05

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)2121-21222117-2118
Cumulative impact probabilitythreshold: >2× (floor 1e-7)2.687e-54.810e-7
Palermo Scalecumulativethreshold: |Δ| > 0.5-7.71-9.44
Torino Scalemaxthreshold: exactT0T0
Estimated diameter* from absolute magnitude3 m3 m *

Detected · 2 fields · 2 risk

  • cumulativeImpactProbability [risk · >2× (floor 1e-7)] · jpl-sentry=0.000026871 · esa-neocc=4.81e-7Aggregation windows differ (informational): JPL 2121-2122 vs ESA 2117-2118. Cumulative threshold still applies.
  • palermoScaleCumulative [risk · |Δ| > 0.5] · jpl-sentry=-7.71 · esa-neocc=-9.44Aggregation windows differ (informational): JPL 2121-2122 vs ESA 2117-2118. Cumulative threshold still applies.