Home › Entities › asteroid › 1999 XB99

1999 XB99

asteroid
Thing asteroid Q15189490

Facts

21 properties
Instance of
asteroid
Follows
1999 XZ98[3]
Followed by
1999 XQ100[4]
Absolute magnitude
+15.79[10]
Apoapsis
+3.165428630626736[15]
Argument of periapsis
+344.2626251408917[17]
Discoverer or inventor
Lincoln Near-Earth Asteroid Research[1]
Epoch
November 21, 2025[19]
Longitude of ascending node
+78.00122015081048[13]
Mean anomaly
+115.0074707589569[18]
Minor planet group
asteroid belt[5]
Orbital eccentricity
+0.2306450659920257[9]
Orbital inclination
+8.035355741946255[11]
Orbital period
+1506.773570403356[12]
Parent astronomical body
Sun[6]
Periapsis
+1.978911875179586[16]
Provisional designation
1999 XB99[7]
Semi-major axis of an orbit
+2.572170252903161[14]
Site of astronomical discovery
Experimental Test Site[2]
Time of discovery or invention
December 7, 1999[8]
Time of periapsis
+2460519.138285171[20]
🏷️ Also known as
ru 1999 XB99 zh 小行星75399
🔖 Identifiers · 2
JPL Small-Body Database SPK-ID
20075399
Minor Planet Center body ID
75399

Report an error or request removal Lineage (PROV-JSON)

Press Enter · cited answer in seconds

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.

📑 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). 1999 XB99. Retrieved October 29, 2026, from https://4ort.xyz/entity/q15189490
MLA “1999 XB99.” 4ort.xyz Knowledge Graph, 4ort.xyz, 29 Oct. 2026, https://4ort.xyz/entity/q15189490.
BibTeX @misc{4ortxyz_q15189490_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{1999 XB99}}, year = {2026}, url = {https://4ort.xyz/entity/q15189490}, note = {Accessed: 2026-10-29}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 1999 XB99 — https://4ort.xyz/entity/q15189490 (retrieved 2026-10-29)

Canonical URL: https://4ort.xyz/entity/q15189490 · Last refreshed:

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 · 2026-06-05 view diff on Wikidata ↗
    Apoapsis → {'unit': 'Q1811', 'amount': '+3.165428630626736'}
    Provisional designation → 1999 XB99
    JPL Small-Body Database SPK-ID → 20075399
    Periapsis → {'unit': 'Q1811', 'amount': '+1.978911875179586'}
    + 21 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ Absolute magnitude: 15.81"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.