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(74789) 1999 SY5

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Place asteroid Q15187910
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(74789) 1999 SY5

Summary

(74789) 1999 SY5 is an asteroid[1].

Key Facts

  • (74789) 1999 SY5 is credited with the discovery of Lincoln Near-Earth Asteroid Research[2].
  • (74789) 1999 SY5's instance of is recorded as asteroid[3].
  • (74789) 1999 SY5's site of astronomical discovery is recorded as Experimental Test Site[4].
  • (74789) 1999 SY5's follows is recorded as (74788) 1999 SL3[5].
  • (74789) 1999 SY5's followed by is recorded as (74790) 1999 SP6[6].
  • (74789) 1999 SY5's minor planet group is recorded as Mars-crossing asteroid[7].
  • (74789) 1999 SY5's parent astronomical body is recorded as Sun[8].
  • (74789) 1999 SY5's provisional designation is recorded as 1999 SY5[9].
  • (74789) 1999 SY5's time of discovery or invention is recorded as +1999-09-30T00:00:00Z[10].
  • (74789) 1999 SY5's JPL Small-Body Database SPK-ID is recorded as 20074789[11].
  • (74789) 1999 SY5's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.3200615295957961'}[12].
  • (74789) 1999 SY5's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.35'}[13].
  • (74789) 1999 SY5's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+23.24064570989815'}[14].
  • (74789) 1999 SY5's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1297.278329179744'}[15].
  • (74789) 1999 SY5's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+130.299255616139'}[16].
  • (74789) 1999 SY5's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.327858033630783'}[17].
  • (74789) 1999 SY5's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.072915836556513'}[18].
  • (74789) 1999 SY5's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+1.582800230705052'}[19].
  • (74789) 1999 SY5's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+272.5213116691207'}[20].
  • (74789) 1999 SY5's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+122.2640345636668'}[21].
  • (74789) 1999 SY5's Minor Planet Center body ID is recorded as 74789[22].
  • (74789) 1999 SY5's epoch is recorded as November 21, 2025[23].
  • (74789) 1999 SY5's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2460559.9153264514'}[24].

Body

Designation and Status

(74789) 1999 SY5'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 . 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] ↑ . 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). (74789) 1999 SY5. Retrieved May 3, 2026, from https://4ort.xyz/entity/-74789-1999-sy5
MLA “(74789) 1999 SY5.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-74789-1999-sy5.
BibTeX @misc{4ortxyz_-74789-1999-sy5_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(74789) 1999 SY5}}, year = {2026}, url = {https://4ort.xyz/entity/-74789-1999-sy5}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (74789) 1999 SY5 — https://4ort.xyz/entity/-74789-1999-sy5 (retrieved 2026-05-03)

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