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BEACON

Object

2017AB21

2017AB21 · 1/3 sources

Risk scales

TorinoT0
Palermo-6.72

Source: ESA NEOCC

ESA years: 2056-2081

Sources

Amber = past cut. Risk 0 · fields 0.

1/3 sources
FieldJPL CADnot presentJPL Sentrynot presentESA NEOCCESA Aegis
Close-approach datethreshold: date———
Miss distanceauthreshold: 3% rel———
Relative velocitykm/sthreshold: 1% rel (ESA 0.1 km/s)———
Risk yearscumulative aggregation window——2056-2081
Cumulative impact probabilitythreshold: >2× (floor 1e-7)——8.110e-10
Palermo Scalecumulativethreshold: |Δ| > 0.5——-6.72
Torino Scalemaxthreshold: exact——T0
Estimated diameter* from absolute magnitude——400 m *