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(20621) 1999 TK11

asteroid
Place asteroid Q5180577

Facts

23 properties

Identity

Instance of
asteroid
More facts +22
Follows
(20620) 1999 SW10[4]
Followed by
(20622) 1999 TQ11[5]
Absolute magnitude
13.6, 13.66[15][16]
Albedo
0.37
Apoapsis
2.64, 2.63579105784625
Argument of periapsis
105.4648, 106.2002644535215
Diameter
4.362
Discoverer or inventor
Jaume Nomen[2]
Epoch
May 5, 2025
Longitude of ascending node
356.82279, 356.7740011482274[21][22]
Mean anomaly
339.36217, 188.8802851979253
Minor planet group
asteroid belt[6]
Orbital eccentricity
0.08 (0.08–0.08, n=3)[12][13][14]
Orbital inclination
6.3546, 6.354406193673862[17][18]
Orbital period
3.8, 1389.010059577384[19][20]
Parent astronomical body
Sun[7]
Periapsis
2.2317998, 2.236889845980981
Provisional designation
1984 UJ5, 1997 BS, 1999 TK11[8][9][10]
Semi-major axis of an orbit
2.4358412, 2.436340451913615[23][24]
Site of astronomical discovery
Ametlla de Mar Observatory[3]
Time of discovery or invention
October 9, 1999[11]
Time of periapsis
2461460.741681256
🏷️ Also known as
en (20621) 1999 TK11 ru 1984 UJ5 ru 1997 BS ru 1999 TK11 zh 小行星20621
🔖 Identifiers · 4
Google Knowledge Graph ID
/g/11bwkzcxrj
JPL Small-Body Database SPK-ID
20020621
Minor Planet Center body ID
20621
Wolfram Language entity code
Entity["MinorPlanet", "MinorPlanet20621Provisional1999TK11"]

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🔗 Connections
Discoverer or inventor 1
Jaume Nomen
Epoch 1
May 5, 2025
Follows 1
(20620) 1999 SW10
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Parent astronomical body 1
Sun
Preceded by (successor) 1
(20620) 1999 SW10
Site of astronomical discovery 1
Ametlla de Mar Observatory
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Summary

(20621) 1999 TK11 is an asteroid[1].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  2. [3] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . wikidata.org.
  12. [13] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  13. [14] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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.

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). (20621) 1999 TK11. Retrieved November 2, 2026, from https://4ort.xyz/entity/20621-1999-tk11
MLA “(20621) 1999 TK11.” 4ort.xyz Knowledge Graph, 4ort.xyz, 2 Nov. 2026, https://4ort.xyz/entity/20621-1999-tk11.
BibTeX @misc{4ortxyz_20621-1999-tk11_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(20621) 1999 TK11}}, year = {2026}, url = {https://4ort.xyz/entity/20621-1999-tk11}, note = {Accessed: 2026-11-02}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (20621) 1999 TK11 — https://4ort.xyz/entity/20621-1999-tk11 (retrieved 2026-11-02)

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