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(59989) 1999 SL16

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(59989) 1999 SL16

Summary

(59989) 1999 SL16 is an asteroid[1].

Key Facts

  • (59989) 1999 SL16 is credited with the discovery of Catalina Sky Survey[2].
  • (59989) 1999 SL16's instance of is recorded as asteroid[3].
  • (59989) 1999 SL16's site of astronomical discovery is recorded as Catalina Station[4].
  • (59989) 1999 SL16's follows is recorded as (59988) 1999 SH16[5].
  • (59989) 1999 SL16's followed by is recorded as (59990) 1999 SA17[6].
  • (59989) 1999 SL16's minor planet group is recorded as asteroid belt[7].
  • (59989) 1999 SL16's parent astronomical body is recorded as Sun[8].
  • (59989) 1999 SL16's provisional designation is recorded as 1999 SL16[9].
  • (59989) 1999 SL16's time of discovery or invention is recorded as +1999-09-29T00:00:00Z[10].
  • (59989) 1999 SL16's JPL Small-Body Database SPK-ID is recorded as 20059989[11].
  • (59989) 1999 SL16's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.2090325148982554'}[12].
  • (59989) 1999 SL16's absolute magnitude is recorded as {'unit': '1', 'amount': '+15.75'}[13].
  • (59989) 1999 SL16's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+5.010888979567347'}[14].
  • (59989) 1999 SL16's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1317.104832189043'}[15].
  • (59989) 1999 SL16's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+264.4244797367355'}[16].
  • (59989) 1999 SL16's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.351516032832871'}[17].
  • (59989) 1999 SL16's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.843059342999494'}[18].
  • (59989) 1999 SL16's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+1.859972722666247'}[19].
  • (59989) 1999 SL16's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+1.210093584493628'}[20].
  • (59989) 1999 SL16's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+161.1972971661547'}[21].
  • (59989) 1999 SL16's diameter is recorded as {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount': '+1.945'}[22].
  • (59989) 1999 SL16's albedo is recorded as {'unit': '1', 'amount': '+0.323'}[23].
  • (59989) 1999 SL16's Minor Planet Center body ID is recorded as 59989[24].
  • (59989) 1999 SL16's epoch is recorded as November 21, 2025[25].
  • (59989) 1999 SL16's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2460410.739613796'}[26].

Body

Designation and Status

(59989) 1999 SL16'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] ↑ . 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). (59989) 1999 SL16. Retrieved May 3, 2026, from https://4ort.xyz/entity/-59989-1999-sl16
MLA “(59989) 1999 SL16.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-59989-1999-sl16.
BibTeX @misc{4ortxyz_-59989-1999-sl16_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(59989) 1999 SL16}}, year = {2026}, url = {https://4ort.xyz/entity/-59989-1999-sl16}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (59989) 1999 SL16 — https://4ort.xyz/entity/-59989-1999-sl16 (retrieved 2026-05-03)

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