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(187810) 1999 TC18

minor planet
Place asteroid Q4542054
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(187810) 1999 TC18

Summary

(187810) 1999 TC18 is an asteroid[1].

Key Facts

  • (187810) 1999 TC18 is credited with the discovery of Beijing Schmidt CCD Asteroid Program[2].
  • (187810) 1999 TC18's instance of is recorded as asteroid[3].
  • (187810) 1999 TC18's site of astronomical discovery is recorded as Xinglong Station[4].
  • (187810) 1999 TC18 followed (187809) 1999 TS16[5].
  • (187810) 1999 TC18 was followed by (187811) 1999 TX77[6].
  • (187810) 1999 TC18's minor planet group is recorded as asteroid belt[7].
  • (187810) 1999 TC18's parent astronomical body is recorded as Sun[8].
  • (187810) 1999 TC18's provisional designation is recorded as 1999 TC18[9].
  • (187810) 1999 TC18's provisional designation is recorded as 2004 RV173[10].
  • (187810) 1999 TC18's time of discovery or invention is recorded as October 10, 1999[11].
  • (187810) 1999 TC18's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1979560803888983'}[12].
  • (187810) 1999 TC18's absolute magnitude is recorded as {'unit': '1', 'amount': '+15.77'}[13].
  • (187810) 1999 TC18's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+13.00797596421247'}[14].
  • (187810) 1999 TC18's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1981.00007125322'}[15].
  • (187810) 1999 TC18's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+186.772905217122'}[16].
  • (187810) 1999 TC18's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.0869105345698'}[17].
  • (187810) 1999 TC18's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.697983244504436'}[18].
  • (187810) 1999 TC18's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.475837824635164'}[19].
  • (187810) 1999 TC18's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+175.4010262356522'}[20].
  • (187810) 1999 TC18's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+313.3777087597862'}[21].
  • (187810) 1999 TC18's epoch is recorded as November 21, 2025[22].
  • (187810) 1999 TC18's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2461257.0521174134'}[23].

Body

Designation and Status

(187810) 1999 TC18'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.
  22. [23] ↑ . 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). (187810) 1999 TC18. Retrieved October 5, 2026, from https://4ort.xyz/entity/-187810-1999-tc18
MLA “(187810) 1999 TC18.” 4ort.xyz Knowledge Graph, 4ort.xyz, 5 Oct. 2026, https://4ort.xyz/entity/-187810-1999-tc18.
BibTeX @misc{4ortxyz_-187810-1999-tc18_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(187810) 1999 TC18}}, year = {2026}, url = {https://4ort.xyz/entity/-187810-1999-tc18}, note = {Accessed: 2026-10-05}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (187810) 1999 TC18 — https://4ort.xyz/entity/-187810-1999-tc18 (retrieved 2026-10-05)

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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. 21w ago · KaleemBot bot · 2026-05-14 view diff on Wikidata ↗
    Time of periapsis → {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount':
    Epoch → November 21, 2025
    Orbital inclination → {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    Periapsis → {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '
    + 22 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:(187810) 1999 ٹی سی 18]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.