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1999 RH20

asteroid
Thing Asteroid Q15193796

Facts

21 properties
Instance of
asteroid
Follows
1999 RF190[3]
Followed by
1999 RO210[4]
Absolute magnitude
+16.45[12]
Apoapsis
+2.522567915782087[17]
Argument of periapsis
+34.82539039579984[19]
Discoverer or inventor
Lincoln Near-Earth Asteroid Research[1]
Epoch
June 9, 2026[21]
Longitude of ascending node
+324.4933985855[15]
Mean anomaly
+146.2678556458238[20]
Minor planet group
asteroid belt[5]
Orbital eccentricity
+0.167258684395547[11]
Orbital inclination
+4.165874960716692[13]
Orbital period
+1160.411589880927[14]
Parent astronomical body
Sun[6]
Periapsis
+1.79964094760859[18]
Provisional designation
2002 NF29, 1999 RP198, 1999 RH20[7][8][9]
Semi-major axis of an orbit
+2.161104431695338[16]
Site of astronomical discovery
Experimental Test Site[2]
Time of discovery or invention
September 9, 1999[10]
Time of periapsis
+2460729.0252363374[22]
🏷️ Also known as
ru 1999 RH20 ru 1999 RP198 ru 2002 NF29 zh 小行星80127
🔖 Identifiers · 2
JPL Small-Body Database SPK-ID
20080127
Minor Planet Center body ID
80127

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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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [12] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [14] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. 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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  22. [22] ↑ . 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). 1999 RH20. Retrieved October 29, 2026, from https://4ort.xyz/entity/q15193796
MLA “1999 RH20.” 4ort.xyz Knowledge Graph, 4ort.xyz, 29 Oct. 2026, https://4ort.xyz/entity/q15193796.
BibTeX @misc{4ortxyz_q15193796_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{1999 RH20}}, year = {2026}, url = {https://4ort.xyz/entity/q15193796}, note = {Accessed: 2026-10-29}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 1999 RH20 — https://4ort.xyz/entity/q15193796 (retrieved 2026-10-29)

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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. 21w ago · LiMrBot bot · 2026-06-09 view diff on Wikidata ↗
    JPL Small-Body Database SPK-ID → 20080127
    Epoch → June 9, 2026
    Parent astronomical body → Sun
    Longitude of ascending node → {'unit': 'Q28390', 'amount': '+324.4933985855'}
    + 19 other properties edited (see Wikidata diff for full list)
    "Removed claim: Orbital eccentricity: 0.1666623671754518±0.0000000046563"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.