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BEACON

Object

2020 UC4

2020UC4 · 2/3 sources · cross-match

Risk scales

TorinoT0
Palermo-6.92

Source: JPL Sentry

JPL window: 2084-2121·ESA years: 2084-2124·Last obs: 2020-10-27

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)—2084-21212084-2124
Cumulative impact probabilitythreshold: >2× (floor 1e-7)—7.703e-71.030e-6
Palermo Scalecumulativethreshold: |Δ| > 0.5—-6.92-6.72
Torino Scalemaxthreshold: exact—T0T0
Estimated diameter* from absolute magnitude—21 m23 m *