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(99982) 1981 EJ21

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Place asteroid Q28518453
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(99982) 1981 EJ21

Summary

(99982) 1981 EJ21 is an asteroid[1].

Key Facts

  • (99982) 1981 EJ21 is credited with the discovery of Schelte J. Bus[2].
  • (99982) 1981 EJ21's instance of is recorded as asteroid[3].
  • (99982) 1981 EJ21's site of astronomical discovery is recorded as Siding Spring Observatory[4].
  • (99982) 1981 EJ21's follows is recorded as (99981) 1981 EF20[5].
  • (99982) 1981 EJ21's followed by is recorded as (99983) 1981 EF22[6].
  • (99982) 1981 EJ21's minor planet group is recorded as outer asteroid belt[7].
  • (99982) 1981 EJ21's parent astronomical body is recorded as Sun[8].
  • (99982) 1981 EJ21's provisional designation is recorded as 1981 EJ21[9].
  • (99982) 1981 EJ21's time of discovery or invention is recorded as +1981-03-02T00:00:00Z[10].
  • (99982) 1981 EJ21's JPL Small-Body Database SPK-ID is recorded as 20099982[11].
  • (99982) 1981 EJ21's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1679443318256879'}[12].
  • (99982) 1981 EJ21's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.28'}[13].
  • (99982) 1981 EJ21's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.668758002992828'}[14].
  • (99982) 1981 EJ21's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+2872.727200985371'}[15].
  • (99982) 1981 EJ21's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+165.1973231686174'}[16].
  • (99982) 1981 EJ21's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.954855679227053'}[17].
  • (99982) 1981 EJ21's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+4.619051273741867'}[18].
  • (99982) 1981 EJ21's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.290660084712238'}[19].
  • (99982) 1981 EJ21's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+14.68160518026455'}[20].
  • (99982) 1981 EJ21's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+241.996404956076'}[21].
  • (99982) 1981 EJ21's diameter is recorded as {'unit': 'http://www.wikidata.org/entity/Q828224', 'amount': '+9.515'}[22].
  • (99982) 1981 EJ21's Google Knowledge Graph ID is recorded as /g/11ddwz7c3r[23].
  • (99982) 1981 EJ21's albedo is recorded as {'unit': '1', 'amount': '+0.049'}[24].
  • (99982) 1981 EJ21's Wolfram Language entity code is recorded as Entity["MinorPlanet", "MinorPlanet99982Provisional1981EJ21"][25].
  • (99982) 1981 EJ21's Minor Planet Center body ID is recorded as 99982[26].

Body

Designation and Status

(99982) 1981 EJ21'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] ↑ . wikidata.org.
  23. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [25] ↑ . wikidata.org.
  25. [26] ↑ . 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). (99982) 1981 EJ21. Retrieved May 3, 2026, from https://4ort.xyz/entity/-99982-1981-ej21
MLA “(99982) 1981 EJ21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-99982-1981-ej21.
BibTeX @misc{4ortxyz_-99982-1981-ej21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(99982) 1981 EJ21}}, year = {2026}, url = {https://4ort.xyz/entity/-99982-1981-ej21}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (99982) 1981 EJ21 — https://4ort.xyz/entity/-99982-1981-ej21 (retrieved 2026-05-03)

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