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(18356) 1990 SF1

minor planet
Place asteroid Q4541986
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(18356) 1990 SF1

Summary

(18356) 1990 SF1 is an asteroid[1]. (18356) 1990 SF1 is known by 3 alternative names across languages and contexts.[2]

Key Facts

  • (18356) 1990 SF1 is credited with the discovery of Henry E. Holt[3].
  • (18356) 1990 SF1's instance of is recorded as asteroid[4].
  • (18356) 1990 SF1's site of astronomical discovery is recorded as Palomar Observatory[5].
  • (18356) 1990 SF1 followed (18355) 1990 RN9[6].
  • (18356) 1990 SF1 was followed by (18357) 1990 SR2[7].
  • (18356) 1990 SF1's minor planet group is recorded as asteroid belt[8].
  • (18356) 1990 SF1's parent astronomical body is recorded as Sun[9].
  • (18356) 1990 SF1's provisional designation is recorded as 1976 YW[10].
  • (18356) 1990 SF1's provisional designation is recorded as 1990 SF1[11].
  • (18356) 1990 SF1's provisional designation is recorded as 1994 NG11[12].
  • (18356) 1990 SF1's time of discovery or invention is recorded as September 16, 1990[13].
  • (18356) 1990 SF1's orbital eccentricity is recorded as {'amount': '+0.18'}[14].
  • (18356) 1990 SF1's orbital eccentricity is recorded as {'amount': '+0.1760903'}[15].
  • (18356) 1990 SF1's orbital eccentricity is recorded as {'amount': '+0.1783848892851711'}[16].
  • (18356) 1990 SF1's absolute magnitude is recorded as {'amount': '+14.1'}[17].
  • (18356) 1990 SF1's absolute magnitude is recorded as {'amount': '+14.2'}[18].
  • (18356) 1990 SF1's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+3.60724'}[19].
  • (18356) 1990 SF1's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+3.610542542293083'}[20].
  • (18356) 1990 SF1's orbital period is recorded as {'unit': 'Q577', 'amount': '+4.8'}[21].
  • (18356) 1990 SF1's orbital period is recorded as {'unit': 'Q573', 'amount': '+1750.211566750073'}[22].
  • (18356) 1990 SF1's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+264.82993'}[23].
  • (18356) 1990 SF1's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+264.7796540739195'}[24].
  • (18356) 1990 SF1's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.8442742'}[25].
  • (18356) 1990 SF1's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.842244371994984'}[26].
  • (18356) 1990 SF1's apoapsis is recorded as {'unit': 'Q1811', 'amount': '+3.345'}[27].

Body

Designation and Status

(18356) 1990 SF1's instance of is recorded as asteroid[4].

Why It Matters

(18356) 1990 SF1 is known by 3 alternative names across languages and contexts.[2]

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. [3] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [5] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [11] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  10. [12] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  14. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [17] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  16. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [19] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  18. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [21] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  20. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [23] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  22. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [25] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  24. [26] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  25. [27] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata aliases. 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). (18356) 1990 SF1. Retrieved May 3, 2026, from https://4ort.xyz/entity/18356-1990-sf1
MLA “(18356) 1990 SF1.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/18356-1990-sf1.
BibTeX @misc{4ortxyz_18356-1990-sf1_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(18356) 1990 SF1}}, year = {2026}, url = {https://4ort.xyz/entity/18356-1990-sf1}, note = {Accessed: 2026-05-03}}
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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. 24d ago · KaleemBot bot · 2026-05-14 view diff on Wikidata ↗
    Time of periapsis → {'unit': 'Q14267', 'amount': '+2460573.5226153703'}
    Epoch → November 21, 2025
    Orbital inclination → {'unit': 'Q28390', 'amount': '+3.60724'}, {'unit': 'Q28390', 'amount': '+3.610542542293083'}
    Aliases → —
    + 21 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:(18356) 1990 ایس ایف 1]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.