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(46569) 1991 SY1

minor planet
Place asteroid Q4543636
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(46569) 1991 SY1

Summary

(46569) 1991 SY1 is an asteroid[1].

Key Facts

  • (46569) 1991 SY1 is credited with the discovery of Henry E. Holt[2].
  • (46569) 1991 SY1's instance of is recorded as asteroid[3].
  • (46569) 1991 SY1's site of astronomical discovery is recorded as Palomar Observatory[4].
  • (46569) 1991 SY1 followed 46568 Stevenlee[5].
  • (46569) 1991 SY1 was followed by (46570) 1991 TK8[6].
  • (46569) 1991 SY1's minor planet group is recorded as asteroid belt[7].
  • (46569) 1991 SY1's parent astronomical body is recorded as Sun[8].
  • (46569) 1991 SY1's provisional designation is recorded as 1991 PS20[9].
  • (46569) 1991 SY1's provisional designation is recorded as 1991 SY1[10].
  • (46569) 1991 SY1's provisional designation is recorded as 1999 XA220[11].
  • (46569) 1991 SY1's provisional designation is recorded as 2001 CM1[12].
  • (46569) 1991 SY1's time of discovery or invention is recorded as September 16, 1991[13].
  • (46569) 1991 SY1's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.2155743599127299'}[14].
  • (46569) 1991 SY1's absolute magnitude is recorded as {'unit': '1', 'amount': '+15.26'}[15].
  • (46569) 1991 SY1's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.303778886533774'}[16].
  • (46569) 1991 SY1's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1345.670972401313'}[17].
  • (46569) 1991 SY1's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+345.2959187073506'}[18].
  • (46569) 1991 SY1's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.385395001950844'}[19].
  • (46569) 1991 SY1's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.899625002635423'}[20].
  • (46569) 1991 SY1's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+1.871165001266266'}[21].
  • (46569) 1991 SY1's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+297.3465184909558'}[22].
  • (46569) 1991 SY1's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+143.9383615241242'}[23].
  • (46569) 1991 SY1's epoch is recorded as November 21, 2025[24].
  • (46569) 1991 SY1's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2460462.462014117'}[25].

Body

Designation and Status

(46569) 1991 SY1'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.
  23. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [25] ↑ . 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). (46569) 1991 SY1. Retrieved May 3, 2026, from https://4ort.xyz/entity/-46569-1991-sy1
MLA “(46569) 1991 SY1.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-46569-1991-sy1.
BibTeX @misc{4ortxyz_-46569-1991-sy1_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(46569) 1991 SY1}}, year = {2026}, url = {https://4ort.xyz/entity/-46569-1991-sy1}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (46569) 1991 SY1 — https://4ort.xyz/entity/-46569-1991-sy1 (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. 24d ago · Peter James · 2026-05-15 view diff on Wikidata ↗
    Mean anomaly → {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    Wolfram language entity code → Entity["MinorPlanet", "MinorPlanet46569Provisional1991SY1"]
    Provisional designation → 1991 PS20, 1991 SY1, 1999 XA220 +1
    Orbital inclination → {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    + 23 other properties edited (see Wikidata diff for full list)
    "/* wbmergeitems-from:0||Q139807652 */"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.