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(74587) 1999 ON1

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Place asteroid Q15188379
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(74587) 1999 ON1

Summary

(74587) 1999 ON1 is an asteroid[1].

Key Facts

  • (74587) 1999 ON1 is credited with the discovery of Paul G. Comba[2].
  • (74587) 1999 ON1's instance of is recorded as asteroid[3].
  • (74587) 1999 ON1's site of astronomical discovery is recorded as Prescott Observatory[4].
  • (74587) 1999 ON1 followed (74586) 1999 NG63[5].
  • (74587) 1999 ON1 was followed by (74588) 1999 OO1[6].
  • (74587) 1999 ON1's minor planet group is recorded as asteroid belt[7].
  • (74587) 1999 ON1's parent astronomical body is recorded as Sun[8].
  • (74587) 1999 ON1's provisional designation is recorded as 2002 HM4[9].
  • (74587) 1999 ON1's provisional designation is recorded as 1999 ON1[10].
  • (74587) 1999 ON1's time of discovery or invention is recorded as July 21, 1999[11].
  • (74587) 1999 ON1's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1424962290418588'}[12].
  • (74587) 1999 ON1's absolute magnitude is recorded as {'unit': '1', 'amount': '+16.48'}[13].
  • (74587) 1999 ON1's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+4.014346337019372'}[14].
  • (74587) 1999 ON1's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1245.173769317569'}[15].
  • (74587) 1999 ON1's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+144.6754652910697'}[16].
  • (74587) 1999 ON1's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.265101621448343'}[17].
  • (74587) 1999 ON1's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.587870060901332'}[18].
  • (74587) 1999 ON1's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+1.942333181995355'}[19].
  • (74587) 1999 ON1's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+122.6760709211431'}[20].
  • (74587) 1999 ON1's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+180.2683392600107'}[21].
  • (74587) 1999 ON1's epoch is recorded as October 17, 2024[22].
  • (74587) 1999 ON1's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2461222.1587485257'}[23].

Body

Designation and Status

(74587) 1999 ON1'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). (74587) 1999 ON1. Retrieved May 3, 2026, from https://4ort.xyz/entity/-74587-1999-on1
MLA “(74587) 1999 ON1.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-74587-1999-on1.
BibTeX @misc{4ortxyz_-74587-1999-on1_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(74587) 1999 ON1}}, year = {2026}, url = {https://4ort.xyz/entity/-74587-1999-on1}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (74587) 1999 ON1 — https://4ort.xyz/entity/-74587-1999-on1 (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. 18d ago · LiMrBot bot · 2026-05-27 view diff on Wikidata ↗
    Discoverer or inventor → Paul G. Comba
    Apoapsis → {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '
    Orbital inclination → {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount':
    Time of discovery or invention → +1999-07-21T00:00:00Z
    + 21 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ [[Property:P1457]]: 16.48"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.