(153814)_2001_WN5

<span class="nowrap">(153814) 2001 WN<sub>5</sub></span>

(153814) 2001 WN5

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(153814) 2001 WN5 is a sub-kilometer asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group.

More information Date & Time, Approach to ...

Quick Facts Discovery, Discovered by ...

Description

Nominal orbit of 2001 WN5 (green line) passing the Earth–Moon system in June 2028

It was discovered by the Lowell Observatory Near-Earth-Object Search at Anderson Mesa Station on 20 November 2001,[4] The potentially hazardous asteroid was removed from the Sentry Risk Table on 30 January 2002.[5]

There are precovery images dating back to 10 February 1996.[1] The orbit is well determined with an observation arc of 14.9 years which includes two radar delay observations. It has an Uncertainty Parameter of 0.[1]

The asteroid will pass 248,700 km (0.647 LD) from the Earth on 26 June 2028.[1] During the close approach, the asteroid should peak at about apparent magnitude 6.7,[6] and will be visible in binoculars. It has an absolute magnitude (H) of 18.2.[1]

According to observations by the NEOWISE mission, the asteroid measures approximately 0.9 km in diameter and its surface has a rather low albedo of 0.097.[2]

More information PHA, Date ...
History of close approaches of large near-Earth objects since 1908 (A)

References

  1. [1]
    "JPL Small-Body Database Browser: 153814 (2001 WN5)" (2017-12-26 last obs.). Jet Propulsion Laboratory. Retrieved 13 January 2018.
  2. [2]
    Mainzer, A.; Grav, T.; Bauer, J.; Masiero, J.; McMillan, R. S.; Cutri, R. M.; et al. (December 2011). "NEOWISE Observations of Near-Earth Objects: Preliminary Results". The Astrophysical Journal. 743 (2): 17. arXiv:1109.6400. Bibcode:2011ApJ...743..156M. doi:10.1088/0004-637X/743/2/156. S2CID 239991. Retrieved 13 January 2018.
  3. [3]
    "Horizons Batch for 2028-Jun-26 05:23 UT". JPL Horizons. Archived from the original on 24 January 2022. Retrieved 24 January 2021.
  4. [4]
    "153814 (2001 WN5)". Minor Planet Center. Retrieved 13 January 2018.
  5. [5]
    "Date/Time Removed". NASA/JPL Near-Earth Object Program Office. Archived from the original on 2 June 2002. Retrieved 16 October 2011.
  6. [6]
    "2001WN5 Ephemerides for 26 Jun 2028". NEODyS (Near Earth Objects – Dynamic Site). Retrieved 16 October 2011.
  7. [7]
    Marchis, F.; et al. "Multiple asteroid systems: Dimensions and thermal properties from Spitzer Space Telescope and ground-based observations". Icarus. 221 (2): 1130–1161. Bibcode:2012Icar..221.1130M. doi:10.1016/j.icarus.2012.09.013. Retrieved 24 August 2018.
Preceded by
367943 Duende (2012 DA14)
 Large NEO Earth close approach
(inside the orbit of the Moon)
26 June 2028		 Succeeded by
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