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(43802) 1991 PY18

minor planet
Place asteroid Q4543547
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(43802) 1991 PY18

Summary

(43802) 1991 PY18 is an asteroid[1].

Key Facts

  • (43802) 1991 PY18 is credited with the discovery of Henry E. Holt[2].
  • (43802) 1991 PY18's instance of is recorded as asteroid[3].
  • (43802) 1991 PY18's site of astronomical discovery is recorded as Palomar Observatory[4].
  • (43802) 1991 PY18 followed (43801) 1991 PL15[5].
  • (43802) 1991 PY18 was followed by 43803 Wakakinosakura[6].
  • (43802) 1991 PY18's minor planet group is recorded as asteroid belt[7].
  • (43802) 1991 PY18's parent astronomical body is recorded as Sun[8].
  • (43802) 1991 PY18's provisional designation is recorded as 1991 PY18[9].
  • (43802) 1991 PY18's provisional designation is recorded as 1995 UA4[10].
  • (43802) 1991 PY18's provisional designation is recorded as 1997 BL9[11].
  • (43802) 1991 PY18's time of discovery or invention is recorded as August 10, 1991[12].
  • (43802) 1991 PY18's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.208662050442373'}[13].
  • (43802) 1991 PY18's absolute magnitude is recorded as {'unit': '1', 'amount': '+15.33'}[14].
  • (43802) 1991 PY18's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+3.571039469295525'}[15].
  • (43802) 1991 PY18's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1349.056353198901'}[16].
  • (43802) 1991 PY18's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+323.0231439949263'}[17].
  • (43802) 1991 PY18's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.389394042030073'}[18].
  • (43802) 1991 PY18's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.887969902154858'}[19].
  • (43802) 1991 PY18's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+1.890818181905288'}[20].
  • (43802) 1991 PY18's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+27.36744153448763'}[21].
  • (43802) 1991 PY18's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+87.36930576523926'}[22].
  • (43802) 1991 PY18's epoch is recorded as November 21, 2025[23].
  • (43802) 1991 PY18's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2460673.0941193965'}[24].

Body

Designation and Status

(43802) 1991 PY18'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.

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). (43802) 1991 PY18. Retrieved May 3, 2026, from https://4ort.xyz/entity/-43802-1991-py18
MLA “(43802) 1991 PY18.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-43802-1991-py18.
BibTeX @misc{4ortxyz_-43802-1991-py18_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(43802) 1991 PY18}}, year = {2026}, url = {https://4ort.xyz/entity/-43802-1991-py18}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (43802) 1991 PY18 — https://4ort.xyz/entity/-43802-1991-py18 (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. 4w ago · KaleemBot bot · 2026-05-11 view diff on Wikidata ↗
    Wolfram language entity code → Entity["MinorPlanet", "MinorPlanet43802Provisional1991PY18"]
    Longitude of ascending node → {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    Orbital inclination → {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    Parent astronomical body → Sun
    + 23 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:(43802) 1991 پی وائی 18]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.