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21545 Koirala

asteroid
Place asteroid Q1086736

Facts

22 properties

Identity

Instance of
asteroid
More facts +21
Follows
21544 Hermainkhan[4]
Followed by
21546 Konermann[5]
Absolute magnitude
13.5, 13.7[15][16]
Apoapsis
3.082, 3.070373840659563
Argument of periapsis
50.71848, 38.67514427440709
Discoverer or inventor
Lincoln Near-Earth Asteroid Research[2]
Epoch
November 21, 2025
Longitude of ascending node
189.97733, 189.8712422166033[21][22]
Mean anomaly
346.3897, 159.9487182392023
Minor planet group
asteroid belt[6]
Orbital eccentricity
0.01 (0.01–0.01, n=3)[12][13][14]
Orbital inclination
8.8582, 8.855828237959903[17][18]
Orbital period
5.3, 1931.519038369562[19][20]
Parent astronomical body
Sun[7]
Periapsis
2.9974842, 3.000208765773952
Provisional designation
1993 SZ11, 1998 QO33[8][9]
Semi-major axis of an orbit
3.0398171, 3.035291303216757[23]
Significant event
naming[11]
Site of astronomical discovery
Experimental Test Site[3]
Time of discovery or invention
August 17, 1998[10]
Time of periapsis
2460142.3222376616
🏷️ Also known as
en 21545 Koirala en (21545) Koirala en Koirala de Koirala es Koirala fa سیارک 21545 fa سیارک ۲۱۵۴۵ fr Koirala pt Koirala ru 1993 SZ11 ru 1998 QO33 ru (21545) 1998 QO33 ru Koirala uk 21545 Koirala uk 21545 Койрала zh 小行星21545
🔖 Identifiers · 3
Freebase ID
/m/03y5z6p
JPL Small-Body Database SPK-ID
20021545
Minor Planet Center body ID
21545

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Discoverer or inventor 1
Lincoln Near-Earth Asteroid Research
Epoch 1
November 21, 2025
Followed by 1
21546 Konermann
Followed by (predecessor) 1
21546 Konermann
Follows 1
21544 Hermainkhan
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Parent astronomical body 1
Sun
Preceded by (successor) 1
21544 Hermainkhan
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Summary

21545 Koirala is an asteroid[1].

References

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

Direct Wikidata claims

  1. [2] ↑ . Minor Planet Center 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] ↑ . Minor Planet Center database. wikidata.org.
  4. [5] ↑ . Minor Planet Center database. 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] ↑ . 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.

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). 21545 Koirala. Retrieved November 1, 2026, from https://4ort.xyz/entity/21545-koirala
MLA “21545 Koirala.” 4ort.xyz Knowledge Graph, 4ort.xyz, 1 Nov. 2026, https://4ort.xyz/entity/21545-koirala.
BibTeX @misc{4ortxyz_21545-koirala_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{21545 Koirala}}, year = {2026}, url = {https://4ort.xyz/entity/21545-koirala}, note = {Accessed: 2026-11-01}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 21545 Koirala — https://4ort.xyz/entity/21545-koirala (retrieved 2026-11-01)

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