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(21042) 1990 QT7

asteroid
Place asteroid Q5185398
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Summary

(21042) 1990 QT7 is an asteroid[1].

Key Facts

  • (21042) 1990 QT7 is credited with the discovery of Eric Walter Elst[2].
  • (21042) 1990 QT7's instance of is recorded as asteroid[3].
  • (21042) 1990 QT7's site of astronomical discovery is recorded as La Silla Observatory[4].
  • (21042) 1990 QT7 followed (21041) 1990 QO1[5].
  • (21042) 1990 QT7 was followed by (21043) 1990 RT2[6].
  • (21042) 1990 QT7's minor planet group is recorded as asteroid belt[7].
  • (21042) 1990 QT7's minor planet group is recorded as outer asteroid belt[8].
  • (21042) 1990 QT7's parent astronomical body is recorded as Sun[9].
  • (21042) 1990 QT7's provisional designation is recorded as 1990 QT7[10].
  • (21042) 1990 QT7's provisional designation is recorded as 1999 EV1[11].
  • (21042) 1990 QT7's time of discovery or invention is recorded as August 16, 1990[12].
  • (21042) 1990 QT7's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.13'}[13].
  • (21042) 1990 QT7's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1271535'}[14].
  • (21042) 1990 QT7's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1309137861356595'}[15].
  • (21042) 1990 QT7's absolute magnitude is recorded as {'unit': '1', 'amount': '+13.4'}[16].
  • (21042) 1990 QT7's absolute magnitude is recorded as {'unit': '1', 'amount': '+13.52'}[17].
  • (21042) 1990 QT7's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+0.74386'}[18].
  • (21042) 1990 QT7's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+0.7467093856330003'}[19].
  • (21042) 1990 QT7's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q577', 'amount': '+5.85'}[20].
  • (21042) 1990 QT7's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+2131.545769547796'}[21].
  • (21042) 1990 QT7's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+239.72423'}[22].
  • (21042) 1990 QT7's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+239.7105218949875'}[23].
  • (21042) 1990 QT7's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.2474218'}[24].
  • (21042) 1990 QT7's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.241386535247215'}[25].
  • (21042) 1990 QT7's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.660'}[26].

Body

Designation and Status

(21042) 1990 QT7'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. 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. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  14. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [16] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  16. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [18] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  18. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [20] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  20. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [22] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  22. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [24] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  24. [25] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  25. [26] ↑ . 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). (21042) 1990 QT7. Retrieved October 17, 2026, from https://4ort.xyz/entity/-21042-1990-qt7
MLA “(21042) 1990 QT7.” 4ort.xyz Knowledge Graph, 4ort.xyz, 17 Oct. 2026, https://4ort.xyz/entity/-21042-1990-qt7.
BibTeX @misc{4ortxyz_-21042-1990-qt7_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(21042) 1990 QT7}}, year = {2026}, url = {https://4ort.xyz/entity/-21042-1990-qt7}, note = {Accessed: 2026-10-17}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (21042) 1990 QT7 — https://4ort.xyz/entity/-21042-1990-qt7 (retrieved 2026-10-17)

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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. 10w ago · Ysogo · 2026-08-03 view diff on Wikidata ↗
    Imported from → —
    Longitude of ascending node → {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': , {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    Jpl small-body database spk-id → 20021042
    Diameter → {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount':
    + 26 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ Named after: David G. Sibeck"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.