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(23108) 1999 YP9

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(23108) 1999 YP9

Summary

(23108) 1999 YP9 is an asteroid[1].

Key Facts

  • (23108) 1999 YP9 is credited with the discovery of Takao Kobayashi[2].
  • (23108) 1999 YP9's instance of is recorded as asteroid[3].
  • (23108) 1999 YP9's site of astronomical discovery is recorded as Ōizumi Observatory[4].
  • (23108) 1999 YP9's follows is recorded as (23107) 1999 XA242[5].
  • (23108) 1999 YP9's followed by is recorded as 23109 Masayanagisawa[6].
  • (23108) 1999 YP9's minor planet group is recorded as asteroid belt[7].
  • (23108) 1999 YP9's parent astronomical body is recorded as Sun[8].
  • (23108) 1999 YP9's provisional designation is recorded as 1987 YW4[9].
  • (23108) 1999 YP9's provisional designation is recorded as 1998 RV34[10].
  • (23108) 1999 YP9's provisional designation is recorded as 1999 YP9[11].
  • (23108) 1999 YP9's time of discovery or invention is recorded as +1999-12-31T00:00:00Z[12].
  • (23108) 1999 YP9's JPL Small-Body Database SPK-ID is recorded as 20023108[13].
  • (23108) 1999 YP9's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.14'}[14].
  • (23108) 1999 YP9's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1395666'}[15].
  • (23108) 1999 YP9's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1392864401044192'}[16].
  • (23108) 1999 YP9's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.1'}[17].
  • (23108) 1999 YP9's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.2'}[18].
  • (23108) 1999 YP9's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+8.30384'}[19].
  • (23108) 1999 YP9's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+8.304719009227695'}[20].
  • (23108) 1999 YP9's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q577', 'amount': '+3.86'}[21].
  • (23108) 1999 YP9's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1411.063193158185'}[22].
  • (23108) 1999 YP9's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+2.37417'}[23].
  • (23108) 1999 YP9's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+2.32944175831166'}[24].
  • (23108) 1999 YP9's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.4618304'}[25].
  • (23108) 1999 YP9's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.462060333268672'}[26].

Body

Designation and Status

(23108) 1999 YP9'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 . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  15. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [17] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  17. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [19] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  19. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [21] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  21. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  22. [23] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  23. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [25] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  25. [26] ↑ . 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). (23108) 1999 YP9. Retrieved May 3, 2026, from https://4ort.xyz/entity/-23108-1999-yp9
MLA “(23108) 1999 YP9.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-23108-1999-yp9.
BibTeX @misc{4ortxyz_-23108-1999-yp9_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(23108) 1999 YP9}}, year = {2026}, url = {https://4ort.xyz/entity/-23108-1999-yp9}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (23108) 1999 YP9 — https://4ort.xyz/entity/-23108-1999-yp9 (retrieved 2026-05-03)

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