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BEACON

Object

2017 HJ

2017HJ · 2/3 sources · cross-match

Risk scales

TorinoT0
Palermo-6.67

Source: JPL Sentry

JPL window: 2073-2121·ESA years: 2073-2126·Last obs: 2017-04-25

Sources

Amber = past cut. Risk 0 · fields 0.

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)—2073-21212073-2126
Cumulative impact probabilitythreshold: >2× (floor 1e-7)—3.875e-63.780e-6
Palermo Scalecumulativethreshold: |Δ| > 0.5—-6.67-6.66
Torino Scalemaxthreshold: exact—T0T0
Estimated diameter* from absolute magnitude—11 m11 m *