1979 XB
A lost potentially hazardous asteroid with a poorly constrained orbit.
Last updated
1979 XB is a lost asteroid classified as a near-Earth object and potentially hazardous asteroid of the Apollo group. It is estimated to be 660 meters in diameter and has been listed on the Sentry Risk Table since 2002. As of 2025, its cumulative Palermo scale rating of −2.70 places it fourth on an unconstrained listing of the Sentry Risk Table.
2056 virtual impactor
JPL Horizons suggests the closest approach in 2056 will be 1.2 AU on 4 August 2056, while NEODyS expects 3.1 AU on 2 October 2056. The Sentry Risk Table estimates a 1 in 5.3 million chance of impact on 12 December 2056, with a nominal Earth distance of 3 AU (JPL Horizons) or 3.6 AU (NEODyS). Potential impacts are also listed for 2086, 2102, and 2113.
Did You Know?
- With a short 4-day observation arc, the orbital period ranges from 2.4 to 4.2 years.
- Around mid-December 2024 the asteroid had about a 0.05% chance of making an Earth approach within 0.1 AU.
More in Potential Impact Events Caused by near-Earth Objects
Sources
Compiled from Wikipedia and the sources listed below. Text from Wikipedia is available under CC BY-SA 4.0; this entry is adapted from it.
- Wikipedia: 1979 XB (CC BY-SA 4.0).
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