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(66451) 1999 OS2

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(66451) 1999 OS2

Summary

(66451) 1999 OS2 is an asteroid[1].

Key Facts

  • (66451) 1999 OS2 is credited with the discovery of Lincoln Near-Earth Asteroid Research[2].
  • (66451) 1999 OS2's instance of is recorded as asteroid[3].
  • (66451) 1999 OS2's site of astronomical discovery is recorded as Experimental Test Site[4].
  • (66451) 1999 OS2 followed (66450) 1999 OH2[5].
  • (66451) 1999 OS2 was followed by (66452) 1999 OF4[6].
  • (66451) 1999 OS2's minor planet group is recorded as asteroid belt[7].
  • (66451) 1999 OS2's parent astronomical body is recorded as Sun[8].
  • (66451) 1999 OS2's provisional designation is recorded as 1999 OS2[9].
  • (66451) 1999 OS2's time of discovery or invention is recorded as July 22, 1999[10].
  • (66451) 1999 OS2's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1982798759770304'}[11].
  • (66451) 1999 OS2's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.62'}[12].
  • (66451) 1999 OS2's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+12.12566366831344'}[13].
  • (66451) 1999 OS2's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1492.96797136614'}[14].
  • (66451) 1999 OS2's rotation period is recorded as {'unit': 'http://www.wikidata.org/entity/Q25235', 'amount': '+3.345612'}[15].
  • (66451) 1999 OS2's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+288.5325689853865'}[16].
  • (66451) 1999 OS2's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.556434732407641'}[17].
  • (66451) 1999 OS2's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.0633242940928'}[18].
  • (66451) 1999 OS2's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.049545170722481'}[19].
  • (66451) 1999 OS2's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+56.25383326125729'}[20].
  • (66451) 1999 OS2's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+72.09746317987653'}[21].
  • (66451) 1999 OS2's diameter is recorded as {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount': '+3.847'}[22].
  • (66451) 1999 OS2's albedo is recorded as {'unit': '1', 'amount': '+0.227'}[23].
  • (66451) 1999 OS2's epoch is recorded as October 17, 2024[24].
  • (66451) 1999 OS2's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2460301.5022129323'}[25].

Body

Designation and Status

(66451) 1999 OS2'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). (66451) 1999 OS2. Retrieved May 3, 2026, from https://4ort.xyz/entity/-66451-1999-os2
MLA “(66451) 1999 OS2.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-66451-1999-os2.
BibTeX @misc{4ortxyz_-66451-1999-os2_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(66451) 1999 OS2}}, year = {2026}, url = {https://4ort.xyz/entity/-66451-1999-os2}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (66451) 1999 OS2 — https://4ort.xyz/entity/-66451-1999-os2 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/-66451-1999-os2 · Last refreshed:

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 ↗
    Minor planet group → asteroid belt
    Orbital eccentricity → {'unit': '1', 'amount': '+0.1982798759770304'}
    Provisional designation → 1999 OS2
    Semi-major axis of an orbit → {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '
    + 23 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ [[Property:P1457]]: 14.62"
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