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(74447) 1999 CH21

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(74447) 1999 CH21

Summary

(74447) 1999 CH21 is an asteroid[1]. (74447) 1999 CH21 is known by 3 alternative names across languages and contexts.[2]

Key Facts

  • (74447) 1999 CH21 is credited with the discovery of Lincoln Near-Earth Asteroid Research[3].
  • (74447) 1999 CH21's instance of is recorded as asteroid[4].
  • (74447) 1999 CH21's site of astronomical discovery is recorded as Experimental Test Site[5].
  • (74447) 1999 CH21's follows is recorded as (74446) 1999 CT19[6].
  • (74447) 1999 CH21's followed by is recorded as (74448) 1999 CL21[7].
  • (74447) 1999 CH21's minor planet group is recorded as asteroid belt[8].
  • (74447) 1999 CH21's parent astronomical body is recorded as Sun[9].
  • (74447) 1999 CH21's provisional designation is recorded as 1999 CH21[10].
  • (74447) 1999 CH21's provisional designation is recorded as 2002 SJ62[11].
  • (74447) 1999 CH21's provisional designation is recorded as 2002 TD125[12].
  • (74447) 1999 CH21's time of discovery or invention is recorded as +1999-02-10T00:00:00Z[13].
  • (74447) 1999 CH21's JPL Small-Body Database SPK-ID is recorded as 20074447[14].
  • (74447) 1999 CH21's orbital eccentricity is recorded as {'amount': '+0.08775707419011188'}[15].
  • (74447) 1999 CH21's absolute magnitude is recorded as {'amount': '+14.11'}[16].
  • (74447) 1999 CH21's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+8.799197569876002'}[17].
  • (74447) 1999 CH21's orbital period is recorded as {'unit': 'Q573', 'amount': '+1929.280711297549'}[18].
  • (74447) 1999 CH21's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+313.3180780629176'}[19].
  • (74447) 1999 CH21's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+3.032945899615322'}[20].
  • (74447) 1999 CH21's apoapsis is recorded as {'unit': 'Q1811', 'amount': '+3.299108357942459'}[21].
  • (74447) 1999 CH21's periapsis is recorded as {'unit': 'Q1811', 'amount': '+2.766783441288184'}[22].
  • (74447) 1999 CH21's argument of periapsis is recorded as {'unit': 'Q28390', 'amount': '+92.82431698854035'}[23].
  • (74447) 1999 CH21's mean anomaly is recorded as {'unit': 'Q28390', 'amount': '+100.578548422081'}[24].
  • (74447) 1999 CH21's diameter is recorded as {'unit': 'Q828224', 'amount': '+5.928'}[25].
  • (74447) 1999 CH21's Google Knowledge Graph ID is recorded as /g/123b47g1[26].
  • (74447) 1999 CH21's albedo is recorded as {'amount': '+0.182'}[27].

Body

Designation and Status

(74447) 1999 CH21's instance of is recorded as asteroid[4].

Why It Matters

(74447) 1999 CH21 is known by 3 alternative names across languages and contexts.[2]

References

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

Direct Wikidata claims

  1. [4] ↑ . 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. [5] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [11] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  10. [12] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [14] ↑ . JPL Small-Body Database. Retrieved . wikidata.org.
  13. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  22. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [25] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [26] ↑ . wikidata.org.
  25. [27] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata aliases. 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). (74447) 1999 CH21. Retrieved May 3, 2026, from https://4ort.xyz/entity/74447-1999-ch21
MLA “(74447) 1999 CH21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/74447-1999-ch21.
BibTeX @misc{4ortxyz_74447-1999-ch21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(74447) 1999 CH21}}, year = {2026}, url = {https://4ort.xyz/entity/74447-1999-ch21}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (74447) 1999 CH21 — https://4ort.xyz/entity/74447-1999-ch21 (retrieved 2026-05-03)

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