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BEACON

Object

2021 RY4

2021RY4 · 1/3 sources

Risk scales

TorinoT0
Palermo-8.61

Source: JPL Sentry

JPL window: 2110-2110·Last obs: 2021-10-01

Sources

Amber = past cut. Risk 0 · fields 0.

1/3 sources
FieldJPL CADnot presentJPL SentryNASA/JPLESA NEOCCnot present
Close-approach datethreshold: date
Miss distanceauthreshold: 3% rel
Relative velocitykm/sthreshold: 1% rel (ESA 0.1 km/s)
Risk yearscumulative aggregation window2110-2110
Cumulative impact probabilitythreshold: >2× (floor 1e-7)2.130e-7
Palermo Scalecumulativethreshold: |Δ| > 0.5-8.61
Torino Scalemaxthreshold: exactT0
Estimated diameter* from absolute magnitude7 m