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(66566) 1999 RL139

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(66566) 1999 RL139

Summary

(66566) 1999 RL139 is an asteroid[1].

Key Facts

  • (66566) 1999 RL139 is credited with the discovery of Lincoln Near-Earth Asteroid Research[2].
  • (66566) 1999 RL139's instance of is recorded as asteroid[3].
  • (66566) 1999 RL139's site of astronomical discovery is recorded as Experimental Test Site[4].
  • (66566) 1999 RL139 followed (66565) 1999 RC138[5].
  • (66566) 1999 RL139 was followed by (66567) 1999 RV140[6].
  • (66566) 1999 RL139's minor planet group is recorded as asteroid belt[7].
  • (66566) 1999 RL139's parent astronomical body is recorded as Sun[8].
  • (66566) 1999 RL139's provisional designation is recorded as 1999 RL139[9].
  • (66566) 1999 RL139's provisional designation is recorded as 1998 FG119[10].
  • (66566) 1999 RL139's time of discovery or invention is recorded as September 9, 1999[11].
  • (66566) 1999 RL139's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.0714621825747205'}[12].
  • (66566) 1999 RL139's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.81'}[13].
  • (66566) 1999 RL139's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+6.980176595220865'}[14].
  • (66566) 1999 RL139's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1322.163863753755'}[15].
  • (66566) 1999 RL139's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+336.0846645773625'}[16].
  • (66566) 1999 RL139's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.357533671314675'}[17].
  • (66566) 1999 RL139's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.526008172960215'}[18].
  • (66566) 1999 RL139's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.189059169669134'}[19].
  • (66566) 1999 RL139's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+43.67689568368393'}[20].
  • (66566) 1999 RL139's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+298.1588925363407'}[21].
  • (66566) 1999 RL139's diameter is recorded as {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount': '+3.099'}[22].
  • (66566) 1999 RL139's albedo is recorded as {'unit': '1', 'amount': '+0.221'}[23].
  • (66566) 1999 RL139's epoch is recorded as October 17, 2024[24].
  • (66566) 1999 RL139's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2460827.6224377304'}[25].

Body

Designation and Status

(66566) 1999 RL139'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.
  24. [25] ↑ . 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). (66566) 1999 RL139. Retrieved May 3, 2026, from https://4ort.xyz/entity/-66566-1999-rl139
MLA “(66566) 1999 RL139.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-66566-1999-rl139.
BibTeX @misc{4ortxyz_-66566-1999-rl139_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(66566) 1999 RL139}}, year = {2026}, url = {https://4ort.xyz/entity/-66566-1999-rl139}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (66566) 1999 RL139 — https://4ort.xyz/entity/-66566-1999-rl139 (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. 29d ago · LiMrBot bot · 2026-05-13 view diff on Wikidata ↗
    Longitude of ascending node → {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    Followed by → (66567) 1999 RV140
    Absolute magnitude → {'unit': '1', 'amount': '+14.81'}
    Mean anomaly → {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    + 23 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ [[Property:P1457]]: 14.81"
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