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BEACON

Object

2021 WA1

2021WA1 · 2/3 sources · cross-match

Risk scales

TorinoT0
Palermo-4.88

Source: JPL Sentry

JPL window: 2116-2117·ESA years: 2116-2120·Last obs: 2021-12-04

Sources

Amber = past cut. Risk 0 · fields 0.

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)2116-21172116-2120
Cumulative impact probabilitythreshold: >2× (floor 1e-7)3.532e-45.960e-4
Palermo Scalecumulativethreshold: |Δ| > 0.5-4.88-4.66
Torino Scalemaxthreshold: exactT0T0
Estimated diameter* from absolute magnitude10 m11 m *