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(57721) 2001 UK139

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(57721) 2001 UK139

Summary

(57721) 2001 UK139 is an asteroid[1].

Key Facts

  • (57721) 2001 UK139 is credited with the discovery of Lincoln Near-Earth Asteroid Research[2].
  • (57721) 2001 UK139's instance of is recorded as asteroid[3].
  • (57721) 2001 UK139's site of astronomical discovery is recorded as Experimental Test Site[4].
  • (57721) 2001 UK139's follows is recorded as (57720) 2001 UM134[5].
  • (57721) 2001 UK139's followed by is recorded as (57722) 2001 UG142[6].
  • (57721) 2001 UK139's minor planet group is recorded as asteroid belt[7].
  • (57721) 2001 UK139's parent astronomical body is recorded as Sun[8].
  • (57721) 2001 UK139's provisional designation is recorded as 2001 UK139[9].
  • (57721) 2001 UK139's provisional designation is recorded as 1997 SY26[10].
  • (57721) 2001 UK139's time of discovery or invention is recorded as +2001-10-23T00:00:00Z[11].
  • (57721) 2001 UK139's JPL Small-Body Database SPK-ID is recorded as 20057721[12].
  • (57721) 2001 UK139's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.145671788426488'}[13].
  • (57721) 2001 UK139's absolute magnitude is recorded as {'unit': '1', 'amount': '+16.53'}[14].
  • (57721) 2001 UK139's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+2.4104959294487'}[15].
  • (57721) 2001 UK139's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1325.362816434093'}[16].
  • (57721) 2001 UK139's rotation period is recorded as {'unit': 'http://www.wikidata.org/entity/Q25235', 'amount': '+5.0'}[17].
  • (57721) 2001 UK139's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+168.5532060041407'}[18].
  • (57721) 2001 UK139's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.361334814266765'}[19].
  • (57721) 2001 UK139's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.705314679734734'}[20].
  • (57721) 2001 UK139's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.017354948798797'}[21].
  • (57721) 2001 UK139's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+69.06135949104097'}[22].
  • (57721) 2001 UK139's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+12.56505539513014'}[23].
  • (57721) 2001 UK139's Minor Planet Center body ID is recorded as 57721[24].
  • (57721) 2001 UK139's epoch is recorded as November 21, 2025[25].
  • (57721) 2001 UK139's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2460954.2409522026'}[26].

Body

Designation and Status

(57721) 2001 UK139'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] ↑ . wikidata.org.
  24. [25] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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). (57721) 2001 UK139. Retrieved May 3, 2026, from https://4ort.xyz/entity/-57721-2001-uk139
MLA “(57721) 2001 UK139.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-57721-2001-uk139.
BibTeX @misc{4ortxyz_-57721-2001-uk139_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(57721) 2001 UK139}}, year = {2026}, url = {https://4ort.xyz/entity/-57721-2001-uk139}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (57721) 2001 UK139 — https://4ort.xyz/entity/-57721-2001-uk139 (retrieved 2026-05-03)

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