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(321584) 2009 UG21

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(321584) 2009 UG21

Summary

(321584) 2009 UG21 is an asteroid[1].

Key Facts

  • (321584) 2009 UG21 is credited with the discovery of Peter Kocher[2].
  • (321584) 2009 UG21 is credited with the discovery of Catalina Sky Survey[3].
  • (321584) 2009 UG21's instance of is recorded as asteroid[4].
  • (321584) 2009 UG21's site of astronomical discovery is recorded as Catalina Station[5].
  • (321584) 2009 UG21's minor planet group is recorded as Jupiter trojan[6].
  • (321584) 2009 UG21's minor planet group is recorded as Greek camp trojan asteroid[7].
  • (321584) 2009 UG21's parent astronomical body is recorded as Sun[8].
  • (321584) 2009 UG21's provisional designation is recorded as 2009 UG21[9].
  • (321584) 2009 UG21's time of discovery or invention is recorded as +2009-10-24T00:00:00Z[10].
  • (321584) 2009 UG21's JPL Small-Body Database SPK-ID is recorded as 20321584[11].
  • (321584) 2009 UG21's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.06254266576352362'}[12].
  • (321584) 2009 UG21's Lagrangian point is recorded as L4-Jupiter-Sun[13].
  • (321584) 2009 UG21's absolute magnitude is recorded as {'unit': '1', 'amount': '+13.55'}[14].
  • (321584) 2009 UG21's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+10.59777939362132'}[15].
  • (321584) 2009 UG21's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+4237.518451715023'}[16].
  • (321584) 2009 UG21's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+67.54734629390384'}[17].
  • (321584) 2009 UG21's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+5.12478264135468'}[18].
  • (321584) 2009 UG21's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+5.445300209203634'}[19].
  • (321584) 2009 UG21's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+4.804265073505727'}[20].
  • (321584) 2009 UG21's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+10.77039751623302'}[21].
  • (321584) 2009 UG21's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+97.81737829874614'}[22].
  • (321584) 2009 UG21's diameter is recorded as {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount': '+10.221'}[23].
  • (321584) 2009 UG21's Google Knowledge Graph ID is recorded as /g/124xvlsfb[24].
  • (321584) 2009 UG21's albedo is recorded as {'unit': '1', 'amount': '+0.089'}[25].
  • (321584) 2009 UG21's Minor Planet Center body ID is recorded as 321584[26].

Body

Designation and Status

(321584) 2009 UG21's instance of is recorded as asteroid[4].

References

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

Direct Wikidata claims

  1. [4] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  2. [2] ↑ . wikidata.org.
  3. [3] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [5] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  5. [6] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [7] ↑ . minorplanetcenter.org. minorplanetcenter.org. Provenance: wikidata.org.
  7. [8] ↑ . 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 . wikidata.org.
  11. [12] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [13] ↑ . 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.
  22. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [24] ↑ . wikidata.org.
  24. [25] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  25. [26] ↑ . 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). (321584) 2009 UG21. Retrieved May 3, 2026, from https://4ort.xyz/entity/-321584-2009-ug21
MLA “(321584) 2009 UG21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-321584-2009-ug21.
BibTeX @misc{4ortxyz_-321584-2009-ug21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(321584) 2009 UG21}}, year = {2026}, url = {https://4ort.xyz/entity/-321584-2009-ug21}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (321584) 2009 UG21 — https://4ort.xyz/entity/-321584-2009-ug21 (retrieved 2026-05-03)

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