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(53261) 1999 FR4

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(53261) 1999 FR4

Summary

(53261) 1999 FR4 is an asteroid[1].

Key Facts

  • (53261) 1999 FR4 is credited with the discovery of Spacewatch[2].
  • (53261) 1999 FR4's instance of is recorded as asteroid[3].
  • (53261) 1999 FR4's site of astronomical discovery is recorded as Kitt Peak National Observatory[4].
  • (53261) 1999 FR4's follows is recorded as (53260) 1999 FX1[5].
  • (53261) 1999 FR4's followed by is recorded as (53262) 1999 FE6[6].
  • (53261) 1999 FR4's minor planet group is recorded as asteroid belt[7].
  • (53261) 1999 FR4's parent astronomical body is recorded as Sun[8].
  • (53261) 1999 FR4's provisional designation is recorded as 2000 MM2[9].
  • (53261) 1999 FR4's provisional designation is recorded as 1999 FR4[10].
  • (53261) 1999 FR4's time of discovery or invention is recorded as +1999-03-17T00:00:00Z[11].
  • (53261) 1999 FR4's JPL Small-Body Database SPK-ID is recorded as 20053261[12].
  • (53261) 1999 FR4's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.05858060382718819'}[13].
  • (53261) 1999 FR4's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.93'}[14].
  • (53261) 1999 FR4's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+1.982526706661671'}[15].
  • (53261) 1999 FR4's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1813.837978178585'}[16].
  • (53261) 1999 FR4's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+12.979027393448'}[17].
  • (53261) 1999 FR4's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.910717404262301'}[18].
  • (53261) 1999 FR4's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.081228987374292'}[19].
  • (53261) 1999 FR4's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.74020582115031'}[20].
  • (53261) 1999 FR4's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+296.7309448339345'}[21].
  • (53261) 1999 FR4's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+24.63206629754154'}[22].
  • (53261) 1999 FR4's diameter is recorded as {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount': '+3.114'}[23].
  • (53261) 1999 FR4's albedo is recorded as {'unit': '1', 'amount': '+0.166'}[24].
  • (53261) 1999 FR4's Minor Planet Center body ID is recorded as 53261[25].
  • (53261) 1999 FR4's epoch is recorded as November 21, 2025[26].

Body

Designation and Status

(53261) 1999 FR4'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 . 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] ↑ . wikidata.org.
  25. [26] ↑ . 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). (53261) 1999 FR4. Retrieved May 3, 2026, from https://4ort.xyz/entity/-53261-1999-fr4
MLA “(53261) 1999 FR4.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-53261-1999-fr4.
BibTeX @misc{4ortxyz_-53261-1999-fr4_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(53261) 1999 FR4}}, year = {2026}, url = {https://4ort.xyz/entity/-53261-1999-fr4}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (53261) 1999 FR4 — https://4ort.xyz/entity/-53261-1999-fr4 (retrieved 2026-05-03)

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