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BEACON

Object

2021 XC4

2021XC4 · 1/3 sources

Risk scales

TorinoT0
Palermo-8.38

Source: JPL Sentry

JPL window: 2101-2119·Last obs: 2021-12-13

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 window—2101-2119—
Cumulative impact probabilitythreshold: >2× (floor 1e-7)—2.067e-8—
Palermo Scalecumulativethreshold: |Δ| > 0.5—-8.38—
Torino Scalemaxthreshold: exact—T0—
Estimated diameter* from absolute magnitude—19 m—