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BEACON

Object

2018 RQ4

2018RQ4 · 2/3 sources · cross-match

Risk scales

TorinoT0
Palermo-6.44

Source: JPL Sentry

JPL window: 2082-2117·ESA years: 2098-2119·Last obs: 2018-09-18

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)2082-21172098-2119
Cumulative impact probabilitythreshold: >2× (floor 1e-7)6.263e-63.330e-6
Palermo Scalecumulativethreshold: |Δ| > 0.5-6.44-6.72
Torino Scalemaxthreshold: exactT0T0
Estimated diameter* from absolute magnitude14 m16 m *