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BEACON

Object

2021 PA1

2021PA1 · 2/3 sources · cross-match · 2 risk div.

Risk scales

TorinoT0
Palermo-9.02

Source: JPL Sentry

JPL window: 2113-2113·ESA years: 2125-2125·Last obs: 2021-08-08

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)—2113-21132125-2125
Cumulative impact probabilitythreshold: >2× (floor 1e-7)—1.260e-81.060e-7
Palermo Scalecumulativethreshold: |Δ| > 0.5—-9.02-8.06
Torino Scalemaxthreshold: exact—T0T0
Estimated diameter* from absolute magnitude—13 m14 m *

Detected · 2 fields · 2 risk

  • cumulativeImpactProbability [risk · >2× (floor 1e-7)] · jpl-sentry=1.26e-8 · esa-neocc=1.06e-7Aggregation windows differ (informational): JPL 2113-2113 vs ESA 2125-2125. Cumulative threshold still applies.
  • palermoScaleCumulative [risk · |Δ| > 0.5] · jpl-sentry=-9.02 · esa-neocc=-8.06Aggregation windows differ (informational): JPL 2113-2113 vs ESA 2125-2125. Cumulative threshold still applies.