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(45144) 1999 XA104

minor planet
Place asteroid Q4543620
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(45144) 1999 XA104

Summary

(45144) 1999 XA104 is an asteroid[1].

Key Facts

  • (45144) 1999 XA104 is credited with the discovery of Yoshisada Shimizu[2].
  • (45144) 1999 XA104 is credited with the discovery of Takeshi Urata[3].
  • (45144) 1999 XA104's instance of is recorded as asteroid[4].
  • (45144) 1999 XA104's site of astronomical discovery is recorded as Nachi-Katsuura Observatory[5].
  • (45144) 1999 XA104 followed (45143) 1999 XO103[6].
  • (45144) 1999 XA104 was followed by (45145) 1999 XN105[7].
  • (45144) 1999 XA104's minor planet group is recorded as asteroid belt[8].
  • (45144) 1999 XA104's parent astronomical body is recorded as Sun[9].
  • (45144) 1999 XA104's provisional designation is recorded as 1999 XA104[10].
  • (45144) 1999 XA104's time of discovery or invention is recorded as December 7, 1999[11].
  • (45144) 1999 XA104's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.04621811932135401'}[12].
  • (45144) 1999 XA104's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.85'}[13].
  • (45144) 1999 XA104's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+5.344508058239582'}[14].
  • (45144) 1999 XA104's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1554.30166304001'}[15].
  • (45144) 1999 XA104's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+301.0374763756294'}[16].
  • (45144) 1999 XA104's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.625979047378433'}[17].
  • (45144) 1999 XA104's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.747346860325545'}[18].
  • (45144) 1999 XA104's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.504611234431321'}[19].
  • (45144) 1999 XA104's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+208.5115391228311'}[20].
  • (45144) 1999 XA104's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+325.8900725683877'}[21].
  • (45144) 1999 XA104's diameter is recorded as {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount': '+6.177'}[22].
  • (45144) 1999 XA104's albedo is recorded as {'unit': '1', 'amount': '+0.067'}[23].
  • (45144) 1999 XA104's epoch is recorded as November 21, 2025[24].
  • (45144) 1999 XA104's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2461147.769769259'}[25].

Body

Designation and Status

(45144) 1999 XA104's instance of is recorded as asteroid[4].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [4] ↑ . 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. [3] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [5] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  8. [9] ↑ . 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). (45144) 1999 XA104. Retrieved October 3, 2026, from https://4ort.xyz/entity/-45144-1999-xa104
MLA “(45144) 1999 XA104.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 Oct. 2026, https://4ort.xyz/entity/-45144-1999-xa104.
BibTeX @misc{4ortxyz_-45144-1999-xa104_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(45144) 1999 XA104}}, year = {2026}, url = {https://4ort.xyz/entity/-45144-1999-xa104}, note = {Accessed: 2026-10-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (45144) 1999 XA104 — https://4ort.xyz/entity/-45144-1999-xa104 (retrieved 2026-10-03)

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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. 21w ago · KaleemBot bot · 2026-05-13 view diff on Wikidata ↗
    Absolute magnitude → {'unit': '1', 'amount': '+14.85'}
    Orbital eccentricity → {'unit': '1', 'amount': '+0.04621811932135401'}
    Diameter → {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount':
    Wolfram language entity code → Entity["MinorPlanet", "MinorPlanet45144Provisional1999XA104"
    + 25 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:(45144) 1999 ایکس اے 104]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.