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BEACON

Object

2020 RE4

2020RE4 · 2/3 sources · cross-match · 2 risk div.

Risk scales

TorinoT0
Palermo-8.04

Source: JPL Sentry

JPL window: 2090-2122·ESA years: 2062-2125·Last obs: 2020-09-15

Sources

Amber = past cut. Risk 2 · fields 2.

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)—2090-21222062-2125
Cumulative impact probabilitythreshold: >2× (floor 1e-7)—2.751e-77.970e-6
Palermo Scalecumulativethreshold: |Δ| > 0.5—-8.04-6.52
Torino Scalemaxthreshold: exact—T0T0
Estimated diameter* from absolute magnitude—9 m10 m *

Detected · 2 fields · 2 risk

  • cumulativeImpactProbability [risk · >2× (floor 1e-7)] · jpl-sentry=2.751441e-7 · esa-neocc=0.00000797Aggregation windows differ (informational): JPL 2090-2122 vs ESA 2062-2125. Cumulative threshold still applies.
  • palermoScaleCumulative [risk · |Δ| > 0.5] · jpl-sentry=-8.04 · esa-neocc=-6.52Aggregation windows differ (informational): JPL 2090-2122 vs ESA 2062-2125. Cumulative threshold still applies.