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(71189) 1999 XL229

asteroid
Place asteroid Q15185831
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Key Facts

  • Discoverer or inventor: Catalina Sky Survey[1]
  • Site of astronomical discovery: Catalina Station[2]
  • Follows: (71188) 1999 XH224[3]
  • Followed by: (71190) 1999 XO229[4]
  • Minor planet group: asteroid belt[5]
  • Parent astronomical body: Sun[6]
  • Provisional designation: 1999 XL229[7], 1990 SF27[8], 1990 RN5[9]
  • Time of discovery or invention: December 7, 1999[10]
  • Orbital eccentricity: 0.1858358037808673[11]
  • Absolute magnitude: 15.09[12]
  • Orbital inclination: 11.76588042952375 degree[13]
  • Orbital period: 1597.602754222842 day[14]
  • Longitude of ascending node: 2.912854922941838 degree[15]
  • Semi-major axis of an orbit: 2.674526564243886 astronomical unit[16]
  • Apoapsis: 3.17154935804343 astronomical unit[17]
  • Periapsis: 2.177503770444342 astronomical unit[18]
  • Argument of periapsis: 15.29687309537264 degree[19]
  • Mean anomaly: 2.678363303285637 degree[20]
  • Diameter: 5.802 km[21]
  • Albedo: 0.058[22]
  • Epoch: November 21, 2025[23]
  • Time of periapsis: 2460988.613998361 Julian day[24]

References

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

Direct Wikidata claims

  1. [1] ↑ . 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. [3] ↑ . wikidata.org.
  4. [4] ↑ . wikidata.org.
  5. [5] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [6] ↑ . wikidata.org.
  7. [7] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  8. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [9] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  10. [10] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [11] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [12] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [14] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  22. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.

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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). (71189) 1999 XL229. Retrieved October 29, 2026, from https://4ort.xyz/entity/-71189-1999-xl229
MLA “(71189) 1999 XL229.” 4ort.xyz Knowledge Graph, 4ort.xyz, 29 Oct. 2026, https://4ort.xyz/entity/-71189-1999-xl229.
BibTeX @misc{4ortxyz_-71189-1999-xl229_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(71189) 1999 XL229}}, year = {2026}, url = {https://4ort.xyz/entity/-71189-1999-xl229}, note = {Accessed: 2026-10-29}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (71189) 1999 XL229 — https://4ort.xyz/entity/-71189-1999-xl229 (retrieved 2026-10-29)

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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. 23w ago · LiMrBot bot · 2026-05-17 view diff on Wikidata ↗
    Diameter → {'unit': 'Q828224', 'amount': '+5.802'}
    Parent astronomical body → Sun
    Site of astronomical discovery → Catalina Station
    Imported from → —
    + 22 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ Absolute magnitude: 15.18"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.