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(22305) 1990 SD2

minor planet
Place Asteroid Q4542311

Facts

24 properties

Identity

Instance of
asteroid
More facts +23
Follows
(22304) 1990 RU9[3]
Followed by
(22306) 1990 SF4[4]
Absolute magnitude
+14.6, +14.79[14][15]
Albedo
+0.247[34]
Apoapsis
+2.751, +2.750428656423351[25][26]
Argument of periapsis
+190.18673, +190.1987433894379[29][30]
Diameter
+2.932[33]
Discoverer or inventor
Henry E. Holt[1]
Epoch
November 21, 2025[35]
Longitude of ascending node
+149.47972, +149.4566353552574[21][22]
Mean anomaly
+112.58313, +75.96747261636465[31][32]
Minor planet group
asteroid belt[5]
Orbital eccentricity
0.2 (0.2–0.2, n=3)[11][12][13]
Orbital inclination
+7.44740, +7.448348602854797[16][17]
Orbital period
+3.46, +1264.757076323292[18][19]
Parent astronomical body
Sun[6]
Periapsis
+1.8260264, +1.827149728260997[27][28]
Provisional designation
1976 QH2, 1990 SD2, 2000 LS5[7][8][9]
Rotation period
+2.751[20]
Semi-major axis of an orbit
+2.2883758, +2.288789192342174[23][24]
Site of astronomical discovery
Palomar Observatory[2]
Time of discovery or invention
September 17, 1990[10]
Time of periapsis
+2460733.610003995[36]
🏷️ Also known as
en (22305) 1990 SD2 ru 1976 QH2 ru 1990 SD2 ru 2000 LS5 zh 小行星22305
🔖 Identifiers · 4
Freebase ID
/m/0h55brl
JPL Small-Body Database SPK-ID
20022305
Minor Planet Center body ID
22305
Wolfram Language entity code
Entity["MinorPlanet", "MinorPlanet22305Provisional1990SD2"]

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🔗 Connections
Discoverer or inventor 1
Henry E. Holt
Epoch 1
November 21, 2025
Follows 1
(22304) 1990 RU9
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Parent astronomical body 1
Sun
Preceded by (successor) 1
(22304) 1990 RU9
Site of astronomical discovery 1
Palomar Observatory
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References

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

Direct Wikidata claims

  1. [1] ↑ . 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] ↑ . wikidata.org.
  4. [4] ↑ . wikidata.org.
  5. [5] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [6] ↑ . wikidata.org.
  7. [7] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  8. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [9] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  10. [10] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [11] ↑ . wikidata.org.
  12. [12] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  13. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [14] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  15. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [16] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  17. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [18] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  19. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [21] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  22. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [23] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  24. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  25. [25] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  26. [26] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  27. [27] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  28. [28] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  29. [29] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  30. [30] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  31. [31] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  32. [32] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  33. [33] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  34. [34] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  35. [35] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  36. [36] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.

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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). (22305) 1990 SD2. Retrieved November 9, 2026, from https://4ort.xyz/entity/22305-1990-sd2
MLA “(22305) 1990 SD2.” 4ort.xyz Knowledge Graph, 4ort.xyz, 9 Nov. 2026, https://4ort.xyz/entity/22305-1990-sd2.
BibTeX @misc{4ortxyz_22305-1990-sd2_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(22305) 1990 SD2}}, year = {2026}, url = {https://4ort.xyz/entity/22305-1990-sd2}, note = {Accessed: 2026-11-09}}
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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. 26w ago · KaleemBot bot · 2026-05-11 view diff on Wikidata ↗
    Follows → (22304) 1990 RU9
    Longitude of ascending node → 149.47972 degree, 149.456635 degree
    Parent astronomical body → Sun
    Argument of periapsis → 190.18673 degree, 190.198743 degree
    + 18 other properties edited (see Wikidata diff for full list)
    "Changed the item: Added ur:(22305) 1990 ایس ڈی 2"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.