(523794) 2015 RR245

(523794) 2015 RR245
2015 RR245 imaged by the Hubble Space Telescope in October 2020
Discovery[1]
Discovered byOSSOS
Michele T. Bannister et al.[2][3]
Discovery siteMauna Kea Obs.
Discovery date9 September 2015
Designations
(523794) 2015 RR245
TNO[4] · SDO · resonant (2:9)[3][5]
p-DP[6] · distant[1]
Orbital characteristics[4]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 3
Observation arc13.10 yr (4,786 d)
Earliest precovery date15 October 2004
Aphelion128.80 AU
Perihelion33.943 AU
81.373 AU
Eccentricity0.5829
734.05 yr (268,113 d)
323.86°
0° 0m 4.68s / day
Inclination7.5755°
211.68°
≈ 21 August 2092[7]
±3 days
261.02°
Physical characteristics
≈500 km[5]
≈630 km[6]
500–870 km assuming a single object[3]
0.12 (assumed)[3]
0.11 (assumed)[6]
0.135 (assumed)[5]
neutral
G–R=0.59±0.11[3]
21.2 (perihelic)[8]
3.6±0.1 (Hr)[3]
4.01[1][4]
4.1[6]

(523794) 2015 RR245, provisional designation 2015 RR245, is a large trans-Neptunian object of the Kuiper belt in the outermost regions of the Solar System. It was discovered on 9 September 2015, by the Outer Solar System Origins Survey at Mauna Kea Observatories on the Big island of Hawaii, in the United States.[1] The object is in a rare 2:9 resonance with Neptune and measures approximately 600 kilometers in diameter. 2015 RR245 was suspected to have a satellite according to a study announced by Noyelles et al. in a European Planetary Science Congress meeting in 2019.[9]

  1. ^ a b c d Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference MPEC-2016-N67 was invoked but never defined (see the help page).
  3. ^ a b c d e f Cite error: The named reference Bannister-2016 was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference johnstonsarchive-TNO-list was invoked but never defined (see the help page).
  6. ^ a b c d Cite error: The named reference Brown-dplist was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Horizons2092 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Panstarrs1 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Noyelles2019 was invoked but never defined (see the help page).