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(66623) 1999 RL204

asteroid
Place asteroid Q15182412
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(66623) 1999 RL204

Summary

(66623) 1999 RL204 is an asteroid[1].

Key Facts

  • (66623) 1999 RL204 is credited with the discovery of Lincoln Near-Earth Asteroid Research[2].
  • (66623) 1999 RL204's instance of is recorded as asteroid[3].
  • (66623) 1999 RL204's site of astronomical discovery is recorded as Experimental Test Site[4].
  • (66623) 1999 RL204 followed (66622) 1999 RJ204[5].
  • (66623) 1999 RL204 was followed by (66624) 1999 RM204[6].
  • (66623) 1999 RL204's minor planet group is recorded as asteroid belt[7].
  • (66623) 1999 RL204's parent astronomical body is recorded as Sun[8].
  • (66623) 1999 RL204's provisional designation is recorded as 1999 RL204[9].
  • (66623) 1999 RL204's time of discovery or invention is recorded as September 8, 1999[10].
  • (66623) 1999 RL204's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.109209369092858'}[11].
  • (66623) 1999 RL204's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.83'}[12].
  • (66623) 1999 RL204's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+11.84469357266482'}[13].
  • (66623) 1999 RL204's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1563.880030990457'}[14].
  • (66623) 1999 RL204's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+316.8038115343904'}[15].
  • (66623) 1999 RL204's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.636756376249867'}[16].
  • (66623) 1999 RL204's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.924714876551686'}[17].
  • (66623) 1999 RL204's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.348797875948049'}[18].
  • (66623) 1999 RL204's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+238.7539199502966'}[19].
  • (66623) 1999 RL204's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+115.1035589165053'}[20].
  • (66623) 1999 RL204's diameter is recorded as {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount': '+2.838'}[21].
  • (66623) 1999 RL204's albedo is recorded as {'unit': '1', 'amount': '+0.551'}[22].
  • (66623) 1999 RL204's epoch is recorded as October 17, 2024[23].
  • (66623) 1999 RL204's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2460100.477340874'}[24].

Body

Designation and Status

(66623) 1999 RL204's instance of is recorded as asteroid[3].

References

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

Direct Wikidata claims

  1. [3] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  2. [2] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [4] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. 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 . 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.
  22. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [24] ↑ . 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). (66623) 1999 RL204. Retrieved May 3, 2026, from https://4ort.xyz/entity/-66623-1999-rl204
MLA “(66623) 1999 RL204.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-66623-1999-rl204.
BibTeX @misc{4ortxyz_-66623-1999-rl204_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(66623) 1999 RL204}}, year = {2026}, url = {https://4ort.xyz/entity/-66623-1999-rl204}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (66623) 1999 RL204 — https://4ort.xyz/entity/-66623-1999-rl204 (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 4w ago · LiMrBot bot · 2026-05-13 view diff on Wikidata ↗
    Parent astronomical body → Sun
    Site of astronomical discovery → Experimental Test Site
    Argument of periapsis → {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    Imported from → —
    + 23 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P2244]]: 2.347739842258565±0.0000000052323 astronomical unit, from JPL"
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