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BEACON

Object

2021 XP2

2021XP2 · 2/3 sources · cross-match · 2 risk div.

Risk scales

TorinoT0
Palermo-6.98

Source: JPL Sentry

JPL window: 2071-2121·ESA years: 2071-2125·Last obs: 2022-02-04

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)—2071-21212071-2125
Cumulative impact probabilitythreshold: >2× (floor 1e-7)—3.445e-73.230e-6
Palermo Scalecumulativethreshold: |Δ| > 0.5—-6.98-5.94
Torino Scalemaxthreshold: exact—T0T0
Estimated diameter* from absolute magnitude—27 m29 m *

Detected · 2 fields · 2 risk

  • cumulativeImpactProbability [risk · >2× (floor 1e-7)] · jpl-sentry=3.44523e-7 · esa-neocc=0.00000323Aggregation windows differ (informational): JPL 2071-2121 vs ESA 2071-2125. Cumulative threshold still applies.
  • palermoScaleCumulative [risk · |Δ| > 0.5] · jpl-sentry=-6.98 · esa-neocc=-5.94Aggregation windows differ (informational): JPL 2071-2121 vs ESA 2071-2125. Cumulative threshold still applies.