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(55237) 2001 RK81

asteroid
Place asteroid Q15166885
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Summary

(55237) 2001 RK81 is an asteroid[1].

Key Facts

  • Discoverer or inventor: Near-Earth Asteroid Tracking[2]
  • Site of astronomical discovery: Palomar Observatory[3]
  • Follows: (55236) 2001 RW80[4]
  • Followed by: (55238) 2001 RY83[5]
  • Minor planet group: asteroid belt[6]
  • Parent astronomical body: Sun[7]
  • Provisional designation: 2001 RK81[8], 1997 WH3[9]
  • Time of discovery or invention: September 14, 2001[10]
  • Orbital eccentricity: 0.1397771616654237[11]
  • Absolute magnitude: 15.48[12]
  • Orbital inclination: 6.046808010948411 degree[13]
  • Orbital period: 1505.576172271559 day[14]
  • Longitude of ascending node: 357.2794598048627 degree[15]
  • Semi-major axis of an orbit: 2.570807376187598 astronomical unit[16]
  • Apoapsis: 2.930147534419636 astronomical unit[17]
  • Periapsis: 2.211467217955561 astronomical unit[18]
  • Argument of periapsis: 342.2985176746029 degree[19]
  • Mean anomaly: 330.7093698403917 degree[20]
  • Epoch: November 21, 2025[21]
  • Time of periapsis: 2461122.9979856643 Julian day[22]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  2. [3] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  8. [9] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [10] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  10. [11] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [12] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [14] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). (55237) 2001 RK81. Retrieved May 3, 2026, from https://4ort.xyz/entity/-55237-2001-rk81
MLA “(55237) 2001 RK81.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-55237-2001-rk81.
BibTeX @misc{4ortxyz_-55237-2001-rk81_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(55237) 2001 RK81}}, year = {2026}, url = {https://4ort.xyz/entity/-55237-2001-rk81}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (55237) 2001 RK81 — https://4ort.xyz/entity/-55237-2001-rk81 (retrieved 2026-05-03)

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