(75545) 1999 XS251

asteroid
Place asteroid Q15189218
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(75545) 1999 XS251

Summary

(75545) 1999 XS251 is an asteroid[1].

Key Facts

  • (75545) 1999 XS251 is credited with the discovery of Spacewatch[2].
  • (75545) 1999 XS251's instance of is recorded as asteroid[3].
  • (75545) 1999 XS251's site of astronomical discovery is recorded as Kitt Peak National Observatory[4].
  • (75545) 1999 XS251 followed (75544) 1999 XN248[5].
  • (75545) 1999 XS251 was followed by (75546) 1999 XC256[6].
  • (75545) 1999 XS251's minor planet group is recorded as asteroid belt[7].
  • (75545) 1999 XS251's parent astronomical body is recorded as Sun[8].
  • (75545) 1999 XS251's provisional designation is recorded as 2001 DM76[9].
  • (75545) 1999 XS251's provisional designation is recorded as 1999 XS251[10].
  • (75545) 1999 XS251's time of discovery or invention is recorded as December 9, 1999[11].
  • (75545) 1999 XS251's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1291239830758038'}[12].
  • (75545) 1999 XS251's absolute magnitude is recorded as {'unit': '1', 'amount': '+15.9'}[13].
  • (75545) 1999 XS251's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+2.172959085130326'}[14].
  • (75545) 1999 XS251's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1477.670586684597'}[15].
  • (75545) 1999 XS251's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+134.1917870119267'}[16].
  • (75545) 1999 XS251's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.538942124644952'}[17].
  • (75545) 1999 XS251's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.866780444578052'}[18].
  • (75545) 1999 XS251's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.211103804711852'}[19].
  • (75545) 1999 XS251's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+113.4013073675437'}[20].
  • (75545) 1999 XS251's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+227.7711097968338'}[21].
  • (75545) 1999 XS251's epoch is recorded as October 17, 2024[22].
  • (75545) 1999 XS251's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2461143.2520604534'}[23].

Body

Designation and Status

(75545) 1999 XS251'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.

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). (75545) 1999 XS251. Retrieved May 3, 2026, from https://4ort.xyz/entity/-75545-1999-xs251
MLA “(75545) 1999 XS251.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-75545-1999-xs251.
BibTeX @misc{4ortxyz_-75545-1999-xs251_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(75545) 1999 XS251}}, year = {2026}, url = {https://4ort.xyz/entity/-75545-1999-xs251}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (75545) 1999 XS251 — https://4ort.xyz/entity/-75545-1999-xs251 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/-75545-1999-xs251 · 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. 8d ago · LiMrBot bot · 2026-06-03 view diff on Wikidata ↗
    Longitude of ascending node {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    Time of periapsis {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount':
    Parent astronomical body Sun
    Epoch October 17, 2024
    + 21 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ [[Property:P1096]]: 0.1291239830758038±0.0000000041013"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.