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(66955) 1999 XK20

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(66955) 1999 XK20

Summary

(66955) 1999 XK20 is an asteroid[1].

Key Facts

  • (66955) 1999 XK20 is credited with the discovery of Lincoln Near-Earth Asteroid Research[2].
  • (66955) 1999 XK20's instance of is recorded as asteroid[3].
  • (66955) 1999 XK20's site of astronomical discovery is recorded as Experimental Test Site[4].
  • (66955) 1999 XK20 followed (66954) 1999 XV19[5].
  • (66955) 1999 XK20 was followed by (66956) 1999 XE21[6].
  • (66955) 1999 XK20's minor planet group is recorded as asteroid belt[7].
  • (66955) 1999 XK20's parent astronomical body is recorded as Sun[8].
  • (66955) 1999 XK20's provisional designation is recorded as 1999 XK20[9].
  • (66955) 1999 XK20's time of discovery or invention is recorded as December 5, 1999[10].
  • (66955) 1999 XK20's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.2827930018543234'}[11].
  • (66955) 1999 XK20's absolute magnitude is recorded as {'unit': '1', 'amount': '+15.39'}[12].
  • (66955) 1999 XK20's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+4.996505742652368'}[13].
  • (66955) 1999 XK20's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1492.777739779578'}[14].
  • (66955) 1999 XK20's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+63.50554622248366'}[15].
  • (66955) 1999 XK20's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.556217569917633'}[16].
  • (66955) 1999 XK20's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.279098009907405'}[17].
  • (66955) 1999 XK20's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+1.833337129927862'}[18].
  • (66955) 1999 XK20's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+261.7841196103543'}[19].
  • (66955) 1999 XK20's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+84.36814792530409'}[20].
  • (66955) 1999 XK20's epoch is recorded as October 17, 2024[21].
  • (66955) 1999 XK20's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2460250.658630085'}[22].

Body

Designation and Status

(66955) 1999 XK20'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.

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). (66955) 1999 XK20. Retrieved May 3, 2026, from https://4ort.xyz/entity/-66955-1999-xk20
MLA “(66955) 1999 XK20.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-66955-1999-xk20.
BibTeX @misc{4ortxyz_-66955-1999-xk20_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(66955) 1999 XK20}}, year = {2026}, url = {https://4ort.xyz/entity/-66955-1999-xk20}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (66955) 1999 XK20 — https://4ort.xyz/entity/-66955-1999-xk20 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/-66955-1999-xk20 · 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. 27d ago · LiMrBot bot · 2026-05-12 view diff on Wikidata ↗
    Mean anomaly → {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    Minor planet center body id → 66955
    Epoch → October 17, 2024
    Provisional designation → 1999 XK20
    + 20 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ [[Property:P1096]]: 0.2827930018543234±0.0000000016516"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.