The following is a partial list of unnumbered trans-Neptunian objects for principal designations assigned within 2011. , it contains a total of 91 bodies. For more information see the description on the main page. Also see list for the previous and next year.
2011
Designation First Observed (discovered) D (km) Orbital description Remarks Refs Date Observer(Site) Class a e i q Q 30 January 2011 Pan-STARRS 1 () 172 SDO 71.7 0.51 12 34.9 108.4 albedo: 0.124 30 January 2011 Pan-STARRS 1 () 178 cubewano (cold) 43.9 0.05 5 41.6 46.1 albedo: 0.152 30 January 2011 Pan-STARRS 1 () 217 res5:12 54.1 0.34 33 35.8 72.5 albedo: 0.126 30 January 2011 Pan-STARRS 1 () 141 res3:8? 57.9 0.38 21 35.7 80.1 albedo: 0.126 2 February 2011 Pan-STARRS 1 () 112 res3:7 53.2 0.37 20 33.4 72.9 albedo: 0.126 4 February 2011 Pan-STARRS 1 () 233 cubewano (hot)? 41.8 0.14 27 35.9 47.8 albedo: 0.079 4 February 2011 Pan-STARRS 1 () 135 res1:3? 62.9 0.37 22 39.6 86.1 albedo: 0.126 14 March 2011 Pan-STARRS 1 () 238 cubewano (hot)? 41.2 0.07 27 38.2 44.1 albedo: 0.079 4 April 2011 Las Campanas Observatory () 143 SDO 52.6 0.31 17 36.5 68.7 albedo: 0.124 28 April 2011 New Horizons KBO Search () 77 other TNO 43.9 0.26 6 32.5 55.4 albedo: 0.13 28 April 2011 New Horizons KBO Search () 91 cubewano (hot)? 43.6 0.11 7 38.9 48.3 albedo: 0.079 29 April 2011 New Horizons KBO Search () 118 cubewano (cold) 42.8 0.05 3 40.7 45.0 albedo: 0.152 28 April 2011 New Horizons KBO Search () 116 cubewano (hot) 46.4 0.15 5 39.3 53.4 albedo: 0.079 28 April 2011 New Horizons KBO Search () 110 other TNO 53.0 0.31 6 36.6 69.4 albedo: 0.13 28 April 2011 Magellan-Clay Telescope () 98 res3:5 42.3 0.17 15 35.2 49.5 albedo: 0.126 30 April 2011 Pan-STARRS 1 () 121 plutino 39.2 0.29 18 27.8 50.6 albedo: 0.074 26 April 2011 European Southern Observatory, La Silla () 215 res2:11 92.9 0.61 22 36.6 149.1 albedo: 0.126 29 April 2011 European Southern Observatory, La Silla () 395 SDO 52.1 0.31 29 36.1 68.0 albedo: 0.124 28 April 2011 New Horizons KBO Search () 66 cubewano (cold) 43.0 0.01 2 42.7 43.4 albedo: 0.152 2 May 2011 New Horizons KBO Search () 54 cubewano (cold) 46.4 0.13 3 40.3 52.5 albedo: 0.152 1 May 2011 Magellan-Clay Telescope () 69 SDO 50.9 0.34 13 33.7 68.1 albedo: 0.124 4 May 2011 New Horizons KBO Search () 86 cubewano (cold) 45.4 0.09 2 41.2 49.7 albedo: 0.152 4 May 2011 New Horizons KBO Search () 112 cubewano (cold) 43.8 0.06 3 41.4 46.3 binary: 79 km; albedo: 0.152 29 May 2011 New Horizons KBO Search-Subaru () 64 other TNO 37.5 0.14 4 32.4 42.7 albedo: 0.13 6 June 2011 Pan-STARRS 1 () 262 cubewano (cold) 43.9 0.08 0 40.4 47.5 albedo: 0.152 27 July 2011 Pan-STARRS 1 () 159 SDO 101.8 0.64 20 36.7 167.0 albedo: 0.124 — — — — 103.3 0.64 19 36.7 170.0 — 29 July 2011 Siding Spring Survey () 15 damocloid 272.3 0.99 110 3.1 541.6 albedo: 0.048 26 September 2011 Pan-STARRS 1 () 176 cubewano (cold) 46.9 0.10 5 42.2 51.6 albedo: 0.152; taxonomy: IR 26 October 2011 M. Alexandersen () 67 plutino 39.6 0.25 9 29.7 49.5 albedo: 0.074 24 October 2011 M. Alexandersen () 62 cubewano (cold) 46.6 0.15 3 39.4 53.7 albedo: 0.152 26 October 2011 M. Alexandersen () 69 res3:4 36.8 0.14 5 31.8 41.8 albedo: 0.126 26 October 2011 M. Alexandersen () 123 plutino? 39.8 0.04 15 38.1 41.6 albedo: 0.074 24 October 2011 M. Alexandersen () 124 cubewano (hot)? 43.7 0.06 15 41.4 46.1 albedo: 0.079 24 October 2011 M. Alexandersen () 93 cubewano (cold) 43.7 0.07 3 40.4 46.9 albedo: 0.152 26 October 2011 M. Alexandersen () 183 plutino 39.5 0.29 16 28.0 50.9 albedo: 0.074 24 October 2011 M. Alexandersen () 197 cubewano (hot) 45.7 0.06 6 43.1 48.3 albedo: 0.079 24 October 2011 M. Alexandersen () 52 twotino 48.1 0.33 9 32.4 63.8 albedo: 0.126 24 October 2011 M. Alexandersen () 216 cubewano (hot)? 43.7 0.11 23 39.0 48.4 albedo: 0.079 26 October 2011 M. Alexandersen () 77 twotino 48.3 0.35 6 31.3 65.3 albedo: 0.126 24 October 2011 M. Alexandersen () 78 cubewano (cold) 45.3 0.01 2 45.1 45.6 albedo: 0.152 26 October 2011 M. Alexandersen () 71 twotino 48.0 0.14 11 41.1 54.9 albedo: 0.126 26 October 2011 M. Alexandersen () 95 cubewano (cold) 46.8 0.16 3 39.4 54.1 albedo: 0.152 24 October 2011 M. Alexandersen () 70 other TNO 46.5 0.25 27 35.1 57.9 albedo: 0.13 26 October 2011 M. Alexandersen () 108 cubewano (hot)? 42.9 0.12 15 37.7 48.1 albedo: 0.079 24 October 2011 M. Alexandersen () 78 res3:5 42.6 0.13 5 37.3 47.9 albedo: 0.126 26 October 2011 M. Alexandersen () 113 cubewano (hot)? 42.3 0.03 30 41.1 43.4 albedo: 0.079 26 October 2011 M. Alexandersen () 124 cubewano (hot)? 41.0 0.10 26 37.1 44.9 albedo: 0.079 25 October 2011 Pan-STARRS 1 () 231 cubewano (hot)? 41.8 0.09 14 38.1 45.5 albedo: 0.079 24 October 2011 M. Alexandersen () 68 res3:5 42.5 0.08 2 39.2 45.8 albedo: 0.126 26 October 2011 M. Alexandersen () 136 cubewano (hot) 43.3 0.08 10 39.8 46.7 albedo: 0.079 24 October 2011 M. Alexandersen () 124 res3:5 42.4 0.14 9 36.4 48.5 albedo: 0.126 26 October 2011 M. Alexandersen () 94 cubewano (hot) 45.7 0.14 11 39.5 51.8 albedo: 0.079 26 October 2011 M. Alexandersen () 54 res3:5 42.7 0.22 3 33.5 51.9 albedo: 0.126 24 October 2011 M. Alexandersen () 97 plutino? 39.2 0.06 20 37.0 41.3 albedo: 0.074 26 October 2011 M. Alexandersen () 68 res3:5 42.6 0.21 5 33.6 51.7 albedo: 0.126 26 October 2011 M. Alexandersen () 96 other TNO 38.2 0.12 28 33.5 43.0 albedo: 0.13 24 October 2011 M. Alexandersen () 102 plutino 39.9 0.18 3 32.7 47.2 albedo: 0.074 26 October 2011 M. Alexandersen () 78 res1:4 76.8 0.50 13 38.6 115.0 albedo: 0.126 24 October 2011 M. Alexandersen () 86 SDO 57.0 0.35 20 36.9 77.0 albedo: 0.124 24 October 2011 M. Alexandersen () 62 plutino 39.7 0.27 3 29.2 50.2 albedo: 0.074 26 October 2011 M. Alexandersen () 150 SDO 62.8 0.41 40 37.3 88.3 albedo: 0.124 24 October 2011 M. Alexandersen () 107 res3:10? 68.4 0.49 17 34.8 102.0 albedo: 0.126 24 October 2011 M. Alexandersen () 56 plutino 39.8 0.28 17 28.8 50.7 albedo: 0.074 26 October 2011 M. Alexandersen () 75 SDO 62.7 0.44 27 35.0 90.3 albedo: 0.124 26 October 2011 M. Alexandersen () 66 SDO 50.6 0.32 18 34.3 66.9 albedo: 0.124 24 October 2011 M. Alexandersen () 93 plutino 39.7 0.25 12 29.6 49.8 albedo: 0.074 26 October 2011 M. Alexandersen () 54 res1:3 63.3 0.51 22 31.3 95.3 albedo: 0.126 24 October 2011 M. Alexandersen () 98 cubewano (cold)? 48.2 0.17 3 40.3 56.2 albedo: 0.152 26 October 2011 M. Alexandersen () 113 res2:5 56.0 0.41 6 33.2 78.8 albedo: 0.126 26 October 2011 M. Alexandersen () 126 cubewano (hot)? 48.3 0.18 18 39.6 57.0 albedo: 0.079 24 October 2011 M. Alexandersen () 54 plutino 39.6 0.27 13 29.0 50.3 albedo: 0.074 24 October 2011 M. Alexandersen () 90 cubewano (cold) 44.2 0.04 2 42.7 45.8 albedo: 0.152 26 October 2011 Maunakea () 42 other TNO 39.3 0.17 23 32.8 45.9 albedo: 0.13 24 October 2011 M. Alexandersen () 126 plutino 39.7 0.26 4 29.3 50.1 albedo: 0.074 24 October 2011 M. Alexandersen () 78 cubewano (cold) 43.6 0.07 4 40.7 46.6 albedo: 0.152 24 October 2011 Maunakea () 93 other TNO 48.9 0.30 12 34.2 63.6 albedo: 0.13 26 October 2011 M. Alexandersen () 107 plutino 39.8 0.22 11 31.2 48.4 albedo: 0.074 24 October 2011 M. Alexandersen () 71 cubewano (cold) 44.2 0.17 5 36.6 51.7 albedo: 0.152 26 October 2011 Maunakea () 60 SDO 79.1 0.53 13 37.5 120.8 albedo: 0.124 26 October 2011 M. Alexandersen () 107 plutino 39.7 0.33 17 26.5 52.9 albedo: 0.074 24 October 2011 M. Alexandersen () 94 cubewano (hot) 42.7 0.10 7 38.5 46.9 albedo: 0.079 24 October 2011 Maunakea () 113 cubewano (hot)? 44.4 0.08 30 41.0 47.8 albedo: 0.079 26 October 2011 M. Alexandersen () 71 plutino 39.6 0.14 9 34.0 45.2 albedo: 0.074 24 October 2011 M. Alexandersen () 94 cubewano (cold) 44.5 0.07 2 41.4 47.6 albedo: 0.152 24 October 2011 Maunakea () 78 cubewano (hot)? 43.1 0.03 8 41.7 44.4 albedo: 0.079 26 October 2011 M. Alexandersen () 107 plutino 39.7 0.12 4 34.9 44.6 albedo: 0.074 24 October 2011 M. Alexandersen () 94 cubewano (cold) 45.8 0.05 1 43.4 48.2 albedo: 0.152 24 October 2011 M. Alexandersen () 50 res3:4 36.7 0.14 7 31.6 41.8 albedo: 0.126 24 November 2011 Pan-STARRS 1 () 1.9 damocloid 37.4 0.94 142 2.1 72.7 albedo: 0.048 25 November 2011 Pan-STARRS 1 () 133 SDO 51.8 0.31 26 35.8 67.8 albedo: 0.124
References