Home › Entities › asteroid › 1999 RM255

1999 RM255

asteroid
Thing asteroid Q15191890

Facts

23 properties
Instance of
asteroid
Follows
1999 XY59[3]
Followed by
2001 EL8[4]
Absolute magnitude
+16.66[11]
Albedo
+0.064[21]
Apoapsis
+2.343449545698002[16]
Argument of periapsis
+21.95313501313969[18]
Diameter
+3.071[20]
Discoverer or inventor
Lowell Observatory Near-Earth-Object Search[1]
Epoch
June 9, 2026[22]
Longitude of ascending node
+75.39927606527455[14]
Mean anomaly
+46.77362358991373[19]
Minor planet group
asteroid belt[5]
Orbital eccentricity
+0.0836833539133505[10]
Orbital inclination
+3.279617647474119[12]
Orbital period
+1161.524125469696[13]
Parent astronomical body
Sun[6]
Periapsis
+1.981521465871823[17]
Provisional designation
2001 ER7, 1999 RM255[7][8]
Semi-major axis of an orbit
+2.162485505784912[15]
Site of astronomical discovery
Anderson Mesa Station[2]
Time of discovery or invention
March 2, 2001[9]
Time of periapsis
+2461049.586966013[23]
🏷️ Also known as
ru 1999 RM255 ru 2001 ER7 zh 小行星77149
🔖 Identifiers · 2
JPL Small-Body Database SPK-ID
20077149
Minor Planet Center body ID
77149

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.
  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.
  23. [23] ↑ . 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 RM255. Retrieved October 29, 2026, from https://4ort.xyz/entity/q15191890
MLA “1999 RM255.” 4ort.xyz Knowledge Graph, 4ort.xyz, 29 Oct. 2026, https://4ort.xyz/entity/q15191890.
BibTeX @misc{4ortxyz_q15191890_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{1999 RM255}}, year = {2026}, url = {https://4ort.xyz/entity/q15191890}, note = {Accessed: 2026-10-29}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 1999 RM255 — https://4ort.xyz/entity/q15191890 (retrieved 2026-10-29)

Canonical URL: https://4ort.xyz/entity/q15191890 · 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 · 2026-06-07 view diff on Wikidata ↗
    Absolute magnitude → {'amount': '+16.66'}
    Apoapsis → {'unit': 'Q1811', 'amount': '+2.343449545698002'}
    Semi-major axis of an orbit → {'unit': 'Q1811', 'amount': '+2.162485505784912'}
    Parent astronomical body → Sun
    + 22 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ Absolute magnitude: 16.67"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.