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(85953) 1999 FK21

asteroid
Place asteroid Q15194205
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Summary

(85953) 1999 FK21 is an asteroid[1].

Key Facts

  • (85953) 1999 FK21 is credited with the discovery of Lincoln Near-Earth Asteroid Research[2].
  • (85953) 1999 FK21's instance of is recorded as asteroid[3].
  • (85953) 1999 FK21's instance of is recorded as near-Earth object[4].
  • (85953) 1999 FK21's site of astronomical discovery is recorded as Experimental Test Site[5].
  • (85953) 1999 FK21's follows is recorded as (85952) 1999 FW12[6].
  • (85953) 1999 FK21's followed by is recorded as (85954) 1999 FY23[7].
  • (85953) 1999 FK21's minor planet group is recorded as Aten asteroid[8].
  • (85953) 1999 FK21's parent astronomical body is recorded as Sun[9].
  • (85953) 1999 FK21's provisional designation is recorded as 1999 FK21[10].
  • (85953) 1999 FK21's time of discovery or invention is recorded as +1999-03-24T00:00:00Z[11].
  • (85953) 1999 FK21's JPL Small-Body Database SPK-ID is recorded as 20085953[12].
  • (85953) 1999 FK21's asteroid spectral type is recorded as S-type asteroid[13].
  • (85953) 1999 FK21's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.7030361679976281'}[14].
  • (85953) 1999 FK21's absolute magnitude is recorded as {'unit': '1', 'amount': '+18.09'}[15].
  • (85953) 1999 FK21's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+12.5954436698485'}[16].
  • (85953) 1999 FK21's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+231.9841426510783'}[17].
  • (85953) 1999 FK21's rotation period is recorded as {'unit': 'http://www.wikidata.org/entity/Q25235', 'amount': '+28.08'}[18].
  • (85953) 1999 FK21's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+180.4338063502885'}[19].
  • (85953) 1999 FK21's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+0.7388788724055947'}[20].
  • (85953) 1999 FK21's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+1.258337443476032'}[21].
  • (85953) 1999 FK21's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+0.219420301335157'}[22].
  • (85953) 1999 FK21's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+172.4279766615416'}[23].
  • (85953) 1999 FK21's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+308.6105595502942'}[24].
  • (85953) 1999 FK21's diameter is recorded as {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount': '+0.59'}[25].
  • (85953) 1999 FK21's Google Knowledge Graph ID is recorded as /g/12z653sjw[26].

Body

Designation and Status

Recorded instance of include asteroid[3] and near-Earth object[4].

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. [4] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [2] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [5] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  8. [9] ↑ . 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. 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.
  25. [26] ↑ . 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). (85953) 1999 FK21. Retrieved May 3, 2026, from https://4ort.xyz/entity/-85953-1999-fk21
MLA “(85953) 1999 FK21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-85953-1999-fk21.
BibTeX @misc{4ortxyz_-85953-1999-fk21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(85953) 1999 FK21}}, year = {2026}, url = {https://4ort.xyz/entity/-85953-1999-fk21}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (85953) 1999 FK21 — https://4ort.xyz/entity/-85953-1999-fk21 (retrieved 2026-05-03)

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