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BEACON

Object

2018 HW1

2018HW1 · 2/3 sources · cross-match · 2 risk div.

Risk scales

TorinoT0
Palermo-5.59

Source: JPL Sentry

JPL window: 2105-2122·ESA years: 2116-2122·Last obs: 2018-05-12

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)2105-21222116-2122
Cumulative impact probabilitythreshold: >2× (floor 1e-7)1.755e-58.760e-8
Palermo Scalecumulativethreshold: |Δ| > 0.5-5.59-7.91
Torino Scalemaxthreshold: exactT0T0
Estimated diameter* from absolute magnitude24 m28 m *

Detected · 2 fields · 2 risk

  • cumulativeImpactProbability [risk · >2× (floor 1e-7)] · jpl-sentry=0.000017551731 · esa-neocc=8.76e-8Aggregation windows differ (informational): JPL 2105-2122 vs ESA 2116-2122. Cumulative threshold still applies.
  • palermoScaleCumulative [risk · |Δ| > 0.5] · jpl-sentry=-5.59 · esa-neocc=-7.91Aggregation windows differ (informational): JPL 2105-2122 vs ESA 2116-2122. Cumulative threshold still applies.