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(8018) 1990 SW

asteroid
Place Asteroid Q1313288

Facts

23 properties

Identity

Instance of
asteroid
More facts +22
Follows
(8017) 1990 RM5[4]
Followed by
8019 Karachkina[5]
Absolute magnitude
+13.7, +13.96[15][16]
Albedo
+0.355
Apoapsis
+2.612, +2.615679861398497
Argument of periapsis
+85.02400, +85.0545279813489
Diameter
+4.252
Discoverer or inventor
Henry E. Holt[2]
Epoch
November 21, 2025
Longitude of ascending node
+205.64571, +205.6082386584651[21][22]
Mean anomaly
+53.36706, +353.1436249703685
Minor planet group
asteroid belt[6]
Orbital eccentricity
0.12 (0.12–0.12, n=3)[12][13][14]
Orbital inclination
+8.48505, +8.487637632866807[17][18]
Orbital period
+3.58, +1309.282797508299[19][20]
Parent astronomical body
Sun[7]
Periapsis
+2.0720106, +2.068713450756168
Provisional designation
1990 SW, 1989 GU4, 1017 T-1[8][9][10]
Semi-major axis of an orbit
+2.3422012, +2.342196656077332[23]
Site of astronomical discovery
Palomar Observatory[3]
Time of discovery or invention
September 16, 1990[11]
Time of periapsis
+2461025.435927443
🏷️ Also known as
en (8018) 1990 SW ru 1017 T-1 ru 1989 GU4 ru 1990 SW ru A017 T-1 ru T/1017 T-1 zh 小行星8018
🔖 Identifiers · 4
Freebase ID
/m/0h5595q
JPL Small-Body Database SPK-ID
20008018
Minor Planet Center body ID
8018
Wolfram Language entity code
Entity["MinorPlanet", "MinorPlanet8018Provisional1990SW"]

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🔗 Connections
Discoverer or inventor 1
Henry E. Holt
Epoch 1
November 21, 2025
Followed by 1
8019 Karachkina
Followed by (predecessor) 1
8019 Karachkina
Follows 1
(8017) 1990 RM5
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Parent astronomical body 1
Sun
Preceded by (successor) 1
(8017) 1990 RM5
Site of astronomical discovery 1
Palomar Observatory
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Summary

(8018) 1990 SW is an asteroid[1].

References

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

Direct Wikidata claims

  1. [2] ↑ . 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. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  8. [9] ↑ . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [10] ↑ . Minor Planet Center 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] ↑ . wikidata.org.
  12. [13] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  13. [14] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [15] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  15. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [17] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  17. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [19] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  19. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [21] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  21. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  22. [23] ↑ . minorplanetcenter.net. minorplanetcenter.net. 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). (8018) 1990 SW. Retrieved November 2, 2026, from https://4ort.xyz/entity/8018-1990-sw
MLA “(8018) 1990 SW.” 4ort.xyz Knowledge Graph, 4ort.xyz, 2 Nov. 2026, https://4ort.xyz/entity/8018-1990-sw.
BibTeX @misc{4ortxyz_8018-1990-sw_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(8018) 1990 SW}}, year = {2026}, url = {https://4ort.xyz/entity/8018-1990-sw}, note = {Accessed: 2026-11-02}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (8018) 1990 SW — https://4ort.xyz/entity/8018-1990-sw (retrieved 2026-11-02)

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