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(29560) 1998 DE9

asteroid
Place Asteroid Q6677790

Facts

23 properties

Identity

Instance of
asteroid
More facts +22
Follows
(29559) 1998 DS4[4]
Followed by
29561 Iatteri[5]
Absolute magnitude
13.7 (13.5–13.7, n=3)[15][16][17]
Albedo
0.048
Apoapsis
3.248 astronomical unit, 3.253892077919135 astronomical unit
Argument of periapsis
98.62088 degree, 84.15044467584124 degree
Diameter
12.662 km
Discoverer or inventor
Near-Earth Asteroid Tracking[2]
Epoch
May 5, 2025
Longitude of ascending node
12.48184 degree, 12.4188416514044 degree[22][23]
Mean anomaly
301.03963 degree, 331.9218792789972 degree
Minor planet group
asteroid belt, outer asteroid belt[6][7]
Orbital eccentricity
0.01 (0.01–0.01, n=3)[12][13][14]
Orbital inclination
14.66474 degree, 14.65353798432661 degree[18][19]
Orbital period
5.76 year, 2,107.203709783018 day[20][21]
Parent astronomical body
Sun[8]
Periapsis
3.1818389 astronomical unit, 3.17943145294062 astronomical unit
Provisional designation
1998 DE9, 9543 P-L[9][10]
Semi-major axis of an orbit
3.2151069 astronomical unit, 3.216661765429877 astronomical unit[24]
Site of astronomical discovery
Haleakalā Observatory[3]
Time of discovery or invention
February 22, 1998[11]
Time of periapsis
2,460,964.850889297 Julian day
🏷️ Also known as
en (29560) 1998 DE9 ru 1998 DE9 ru 9543 P-L zh 小行星29560
🔖 Identifiers · 4
Google Knowledge Graph ID
/g/11g2tqs9kq
JPL Small-Body Database SPK-ID
20029560
Minor Planet Center body ID
29560
Wolfram Language entity code
Entity["MinorPlanet", "MinorPlanet29560Provisional1998DE9"]

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Summary

(29560) 1998 DE9 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. 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 . 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] ↑ . wikidata.org.
  15. [16] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  16. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [18] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  18. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [20] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  20. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [22] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  22. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [24] ↑ . 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). (29560) 1998 DE9. Retrieved November 3, 2026, from https://4ort.xyz/entity/-29560-1998-de9
MLA “(29560) 1998 DE9.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 Nov. 2026, https://4ort.xyz/entity/-29560-1998-de9.
BibTeX @misc{4ortxyz_-29560-1998-de9_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(29560) 1998 DE9}}, year = {2026}, url = {https://4ort.xyz/entity/-29560-1998-de9}, note = {Accessed: 2026-11-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (29560) 1998 DE9 — https://4ort.xyz/entity/-29560-1998-de9 (retrieved 2026-11-03)

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