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BEACON

Object

2021 UL7

2021UL7 · 2/3 sources · cross-match · 2 risk div.

Risk scales

TorinoT0
Palermo-7.18

Source: JPL Sentry

JPL window: 2117-2121·ESA years: 2095-2120·Last obs: 2022-06-04

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)2117-21212095-2120
Cumulative impact probabilitythreshold: >2× (floor 1e-7)5.377e-76.940e-9
Palermo Scalecumulativethreshold: |Δ| > 0.5-7.18-9.02
Torino Scalemaxthreshold: exactT0T0
Estimated diameter* from absolute magnitude24 m27 m *

Detected · 2 fields · 2 risk

  • cumulativeImpactProbability [risk · >2× (floor 1e-7)] · jpl-sentry=5.3772e-7 · esa-neocc=6.94e-9Aggregation windows differ (informational): JPL 2117-2121 vs ESA 2095-2120. Cumulative threshold still applies.
  • palermoScaleCumulative [risk · |Δ| > 0.5] · jpl-sentry=-7.18 · esa-neocc=-9.02Aggregation windows differ (informational): JPL 2117-2121 vs ESA 2095-2120. Cumulative threshold still applies.