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BEACON

Object

2018 GR4

2018GR4 · 2/3 sources · cross-match · 1 risk div.

Risk scales

TorinoT0
Palermo-4.58

Source: JPL Sentry

JPL window: 2058-2121·ESA years: 2058-2125·Last obs: 2018-06-15

Sources

Amber = past cut. Risk 1 · fields 1.

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)—2058-21212058-2125
Cumulative impact probabilitythreshold: >2× (floor 1e-7)—3.166e-48.200e-5
Palermo Scalecumulativethreshold: |Δ| > 0.5—-4.58-5.06
Torino Scalemaxthreshold: exact—T0T0
Estimated diameter* from absolute magnitude—13 m14 m *

Detected · 1 fields · 1 risk

  • cumulativeImpactProbability [risk · >2× (floor 1e-7)] · jpl-sentry=0.0003166316162 · esa-neocc=0.000082Aggregation windows differ (informational): JPL 2058-2121 vs ESA 2058-2125. Cumulative threshold still applies.