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9998 ISO

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9998 ISO

Summary

9998 ISO is an asteroid[1]. It ranks in the top 2% of asteroid entities by monthly Wikipedia readership (3 views/month).[2]

Key Facts

  • 9998 ISO is credited with the discovery of Cornelis Johannes van Houten[3].
  • 9998 ISO is credited with the discovery of Ingrid van Houten-Groeneveld[4].
  • 9998 ISO is credited with the discovery of Tom Gehrels[5].
  • 9998 ISO's image is recorded as AnimatedOrbitOf9998ISO.gif[6].
  • 9998 ISO's instance of is recorded as asteroid[7].
  • 9998 ISO's site of astronomical discovery is recorded as Palomar Observatory[8].
  • Infrared Space Observatory is named after 9998 ISO[9].
  • 9998 ISO's follows is recorded as 9997 COBE[10].
  • 9998 ISO's followed by is recorded as Q623172[11].
  • 9998 ISO's minor planet group is recorded as asteroid belt[12].
  • 9998 ISO's parent astronomical body is recorded as Sun[13].
  • 9998 ISO's provisional designation is recorded as 1293 T-1[14].
  • 9998 ISO's provisional designation is recorded as 1991 PW15[15].
  • 9998 ISO's time of discovery or invention is recorded as +1971-03-25T00:00:00Z[16].
  • 9998 ISO's Freebase ID is recorded as /m/03gxff_[17].
  • 9998 ISO's JPL Small-Body Database SPK-ID is recorded as 20009998[18].
  • 9998 ISO's significant event is recorded as naming[19].
  • 9998 ISO's orbital eccentricity is recorded as {'amount': '+0.09'}[20].
  • 9998 ISO's orbital eccentricity is recorded as {'amount': '+0.0944350'}[21].
  • 9998 ISO's orbital eccentricity is recorded as {'amount': '+0.09437234443207093'}[22].
  • 9998 ISO's absolute magnitude is recorded as {'amount': '+15.0'}[23].
  • 9998 ISO's absolute magnitude is recorded as {'amount': '+15.24'}[24].
  • 9998 ISO's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+3.91429'}[25].
  • 9998 ISO's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+3.91145'}[26].
  • 9998 ISO's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+3.910463503497875'}[27].

Body

Designation and Status

9998 ISO's instance of is recorded as asteroid[7].

History and Context

Infrared Space Observatory is named after 9998 ISO[9].

Why It Matters

9998 ISO ranks in the top 2% of asteroid entities by monthly Wikipedia readership (3 views/month).[2] It has Wikipedia articles in 15 language editions, a strong signal of global cultural recognition.[28] It is known by 13 alternative names across languages and contexts.[29]

Related Entities

Cornelis Johannes van Houten Infrared Space Observatory Ingrid van Houten-Groeneveld Tom Gehrels

References

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

Direct Wikidata claims

  1. [6] ↑ . wikidata.org.
  2. [7] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [3] ↑ . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [4] ↑ . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  5. [5] ↑ . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . Minor Planet Center database. wikidata.org.
  9. [11] ↑ . Minor Planet Center database. wikidata.org.
  10. [12] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [17] ↑ . Freebase Data Dumps. wikidata.org.
  16. [18] ↑ . JPL Small-Body Database. Retrieved . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . 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] ↑ . wikidata.org.
  24. [26] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  25. [27] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] ↑ . Wikidata sitelinks. wikidata.org.
  3. [29] ↑ . 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). 9998 ISO. Retrieved May 3, 2026, from https://4ort.xyz/entity/9998-iso
MLA “9998 ISO.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/9998-iso.
BibTeX @misc{4ortxyz_9998-iso_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{9998 ISO}}, year = {2026}, url = {https://4ort.xyz/entity/9998-iso}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 9998 ISO — https://4ort.xyz/entity/9998-iso (retrieved 2026-05-03)

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