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BEACON

Object

2021 WU4

2021WU4 · 2/3 sources · cross-match · 1 risk div.

Risk scales

TorinoT0
Palermo-6.78

Source: JPL Sentry

JPL window: 2056-2118·Last obs: 2021-12-03

Sources

Amber = past cut. Risk 1 · fields 1.

2/3 sources · match
FieldJPL CADnot presentJPL SentryNASA/JPLESA NEOCCESA Aegis
Close-approach datethreshold: date
Miss distanceauthreshold: 3% rel
Relative velocitykm/sthreshold: 1% rel
Cumulative impact probabilitythreshold: >2× (floor 1e-7)8.670e-81.130e-8
Palermo Scalecumulativethreshold: |Δ| > 0.5-6.78-7.75
Torino Scalemaxthreshold: exactT0T0
Estimated diameter* from absolute magnitude36 m40 m *

Detected · 1 fields · 1 risk

  • palermoScaleCumulative [risk · |Δ| > 0.5] · jpl-sentry=-6.78 · esa-neocc=-7.75