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BEACON

Object

2012 XH

2012XH · 2/3 sources · cross-match · 2 risk div.

Risk scales

TorinoT0
Palermo-7.05

Source: JPL Sentry

JPL window: 2112-2121·ESA years: 2124-2124·Last obs: 2013-01-06

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)—2112-21212124-2124
Cumulative impact probabilitythreshold: >2× (floor 1e-7)—8.123e-77.190e-8
Palermo Scalecumulativethreshold: |Δ| > 0.5—-7.05-8.08
Torino Scalemaxthreshold: exact—T0T0
Estimated diameter* from absolute magnitude—21 m21 m *

Detected · 2 fields · 2 risk

  • cumulativeImpactProbability [risk · >2× (floor 1e-7)] · jpl-sentry=8.123e-7 · esa-neocc=7.19e-8Aggregation windows differ (informational): JPL 2112-2121 vs ESA 2124-2124. Cumulative threshold still applies.
  • palermoScaleCumulative [risk · |Δ| > 0.5] · jpl-sentry=-7.05 · esa-neocc=-8.08Aggregation windows differ (informational): JPL 2112-2121 vs ESA 2124-2124. Cumulative threshold still applies.