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(30823) 1990 SY15

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Place asteroid Q4542906
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(30823) 1990 SY15

Summary

(30823) 1990 SY15 is an asteroid[1]. (30823) 1990 SY15 has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • (30823) 1990 SY15 is credited with the discovery of Henry E. Holt[3].
  • (30823) 1990 SY15's instance of is recorded as asteroid[4].
  • (30823) 1990 SY15's site of astronomical discovery is recorded as Palomar Observatory[5].
  • (30823) 1990 SY15 followed (30822) 1990 SX5[6].
  • (30823) 1990 SY15 was followed by (30824) 1990 TD[7].
  • (30823) 1990 SY15's minor planet group is recorded as asteroid belt[8].
  • (30823) 1990 SY15's parent astronomical body is recorded as Sun[9].
  • (30823) 1990 SY15's provisional designation is recorded as 1990 SY15[10].
  • (30823) 1990 SY15's provisional designation is recorded as 1997 TO8[11].
  • (30823) 1990 SY15's provisional designation is recorded as 1999 CR79[12].
  • (30823) 1990 SY15's time of discovery or invention is recorded as September 16, 1990[13].
  • (30823) 1990 SY15's orbital eccentricity is recorded as {'amount': '+0.13'}[14].
  • (30823) 1990 SY15's orbital eccentricity is recorded as {'amount': '+0.1329796'}[15].
  • (30823) 1990 SY15's orbital eccentricity is recorded as {'amount': '+0.1324673461520094'}[16].
  • (30823) 1990 SY15's absolute magnitude is recorded as {'amount': '+14.5'}[17].
  • (30823) 1990 SY15's absolute magnitude is recorded as {'amount': '+14.72'}[18].
  • (30823) 1990 SY15's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+5.96707'}[19].
  • (30823) 1990 SY15's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+5.969413811195165'}[20].
  • (30823) 1990 SY15's orbital period is recorded as {'unit': 'Q577', 'amount': '+3.45'}[21].
  • (30823) 1990 SY15's orbital period is recorded as {'unit': 'Q573', 'amount': '+1260.437279970407'}[22].
  • (30823) 1990 SY15's rotation period is recorded as {'unit': 'Q25235', 'amount': '+4.43471'}[23].
  • (30823) 1990 SY15's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+194.36658'}[24].
  • (30823) 1990 SY15's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+194.3109293127376'}[25].
  • (30823) 1990 SY15's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.2833589'}[26].
  • (30823) 1990 SY15's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.283574625735263'}[27].

Body

Designation and Status

(30823) 1990 SY15's instance of is recorded as asteroid[4].

Why It Matters

(30823) 1990 SY15 has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[2] (30823) 1990 SY15 is known by 3 alternative names across languages and contexts.[28]

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] ↑ . wikidata.org.
  13. [15] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  14. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [17] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  16. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [19] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  18. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [21] ↑ . minorplanetcenter.net. minorplanetcenter.net. 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] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  23. [25] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [26] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: 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 sitelinks. wikidata.org.
  2. [28] ↑ . 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). (30823) 1990 SY15. Retrieved May 3, 2026, from https://4ort.xyz/entity/30823-1990-sy15
MLA “(30823) 1990 SY15.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/30823-1990-sy15.
BibTeX @misc{4ortxyz_30823-1990-sy15_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(30823) 1990 SY15}}, year = {2026}, url = {https://4ort.xyz/entity/30823-1990-sy15}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (30823) 1990 SY15 — https://4ort.xyz/entity/30823-1990-sy15 (retrieved 2026-05-03)

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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. 29d ago · KaleemBot bot · 2026-05-11 view diff on Wikidata ↗
    Discoverer or inventor → Henry E. Holt
    Epoch → November 21, 2025
    Instance of → —
    Diameter → {'unit': 'Q828224', 'amount': '+2.497'}
    + 22 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:(30823) 1990 ایس وائی 15]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.