List of unnumbered trans-Neptunian objects: 2001

The following is a partial list of unnumbered trans-Neptunian objects for principal designations assigned within 2001. , it contains a total of 89 bodies. For more information see the description on the main page. Also see list for the previous and next year.

2001

Designation First Observed (discovered) D (km) Orbital description Remarks Refs Date Observer(Site) Class a e i q Q 28 February 2001 O. R. Hainaut, A. C. Delsanti () 153 cubewano (cold) 43.1 0.04 4 41.5 44.7 albedo: 0.152 28 February 2001 O. R. Hainaut, A. C. Delsanti () 172 cubewano (cold) 42.2 0.06 2 39.5 44.9 albedo: 0.152 28 February 2001 O. R. Hainaut, A. C. Delsanti () 96 cubewano (cold) 44.0 0.10 2 39.8 48.2 albedo: 0.152 22 February 2001 Maunakea () 118 cubewano (cold)? 45.4 0.00 3 45.4 45.4 albedo: 0.152 22 February 2001 Maunakea () 130 cubewano (hot)? 45.5 0.00 8 45.5 45.5 albedo: 0.079 22 February 2001 Maunakea () 71 cubewano (cold)? 43.0 0.00 3 43.0 43.0 albedo: 0.152 22 February 2001 Maunakea () 49 plutino? 39.5 0.31 1 27.4 51.6 albedo: 0.074 22 February 2001 Maunakea () 65 cubewano (cold)? 45.4 0.00 3 45.4 45.4 albedo: 0.152 22 February 2001 Maunakea () 75 cubewano (cold)? 44.5 0.00 2 44.5 44.5 albedo: 0.152 22 February 2001 D. Kinoshita, J. Watanabe, T. Fuse () 101 cubewano (hot)? 43.6 0.12 6 38.4 48.8 albedo: 0.079 22 February 2001 Maunakea () 86 cubewano (cold)? 45.9 0.00 3 45.9 45.9 albedo: 0.152 25 February 2001 Maunakea () 62 plutino? 39.5 0.19 2 32.1 46.9 albedo: 0.074 22 February 2001 Maunakea () 68 cubewano (cold)? 45.0 0.05 3 42.8 47.2 albedo: 0.152 22 February 2001 D. Kinoshita, J. Watanabe, T. Fuse () 84 other TNO 45.9 0.26 5 33.8 58.0 albedo: 0.13 1 March 2001 O. R. Hainaut, A. C. Delsanti () 119 cubewano (cold) 44.3 0.06 4 41.7 46.9 albedo: 0.152 27 March 2001 Kitt Peak () 28 cubewano (cold)? 43.2 0.09 4 39.4 46.9 albedo: 0.152 27 March 2001 Kitt Peak () 113 cubewano (hot)? 42.9 0.10 20 38.6 47.3 albedo: 0.079 27 March 2001 Kitt Peak () 65 cubewano (cold)? 46.5 0.00 3 46.5 46.5 albedo: 0.152 27 March 2001 Kitt Peak () 113 cubewano (hot)? 44.8 0.00 13 44.8 44.8 albedo: 0.079 27 March 2001 Kitt Peak () 98 cubewano (cold)? 44.7 0.00 2 44.7 44.7 albedo: 0.152 27 March 2001 Kitt Peak () 67 plutino? 39.3 0.08 1 36.2 42.5 albedo: 0.074 22 March 2001 Kitt Peak () 157 cubewano (hot)? 44.1 0.14 12 38.0 50.2 albedo: 0.079 22 March 2001 Kitt Peak () 92 centaur 76.3 0.63 9 28.0 124.6 albedo: 0.058 26 March 2001 M. W. Buie () 130 cubewano (cold) 44.1 0.08 4 40.7 47.5 binary: 68 km; albedo: 0.152 22 March 2001 Kitt Peak () 125 SDO 53.8 0.36 29 34.3 73.3 albedo: 0.124; BRmag: 1.19; taxonomy: BR 22 March 2001 Kitt Peak () 91 other TNO 33.9 0.10 10 30.5 37.3 albedo: 0.13 26 March 2001 Kitt Peak () 98 cubewano (cold)? 43.3 0.04 5 41.4 45.1 albedo: 0.152 26 March 2001 M. W. Buie () 124 cubewano (hot)? 47.1 0.11 20 41.9 52.3 albedo: 0.079 22 March 2001 B. Gladman () 102 plutino 39.2 0.27 25 28.7 49.7 albedo: 0.074; BRmag: 3.57 26 April 2001 O. R. Hainaut, A. C. Delsanti () 160 cubewano (cold) 43.7 0.07 1 40.8 46.6 albedo: 0.152 24 May 2001 M. W. Buie () 634 cubewano (hot) 47.2 0.09 12 42.8 51.6 albedo: 0.025; BRmag: 1.72; taxonomy: RR 24 May 2001 M. W. Buie () 172 cubewano (hot)? 45.2 0.18 21 37.0 53.5 albedo: 0.079 22 May 2001 M. W. Buie () 124 cubewano (cold) 44.2 0.02 3 43.1 45.2 albedo: 0.152 22 May 2001 M. W. Buie () 215 res4:9 51.3 0.34 2 33.8 68.8 albedo: 0.126; BRmag: 1.92 23 May 2001 M. W. Buie () 91 SDO 61.3 0.45 16 33.9 88.6 albedo: 0.124; BRmag: 1.24 22 May 2001 M. W. Buie () 149 cubewano (cold) 45.9 0.12 3 40.4 51.5 albedo: 0.152 22 May 2001 M. W. Buie () 179 res5:9 44.3 0.10 1 39.9 48.7 albedo: 0.126 22 May 2001 Cerro Tololo Observatory, La Serena () 130 cubewano (cold)? 44.9 0.08 1 41.5 48.2 albedo: 0.152 23 May 2001 M. W. Buie () 147 cubewano (hot)? 43.7 0.14 21 37.5 49.9 albedo: 0.079 24 May 2001 M. W. Buie () 260 cubewano (hot) 42.6 0.10 6 38.6 46.6 albedo: 0.079 24 May 2001 Cerro Tololo Observatory, La Serena () 108 cubewano (cold)? 43.6 0.09 3 39.6 47.7 albedo: 0.152 22 May 2001 M. W. Buie () 143 cubewano (hot)? 45.8 0.21 11 36.0 55.5 albedo: 0.079 22 May 2001 M. W. Buie () 272 plutino 39.2 0.23 4 30.0 48.3 albedo: 0.074; BRmag: 1.84 24 May 2001 Cerro Tololo Observatory, La Serena () 104 SDO 79.0 0.52 26 38.2 119.8 albedo: 0.124 27 July 2001 R. L. Allen, G. Bernstein, R. Malhotra () 82 cubewano (cold) 43.5 0.01 1 42.9 44.1 albedo: 0.152 24 July 2001 Maunakea () 130 cubewano (hot)? 44.9 0.09 9 40.8 49.0 albedo: 0.079 24 July 2001 B. Gladman () 110 cubewano (cold) 42.9 0.03 2 41.5 44.3 albedo: 0.152 24 July 2001 B. Gladman () 71 cubewano (cold)? 45.3 0.10 3 40.8 49.8 albedo: 0.152 25 July 2001 Maunakea () 119 cubewano (hot)? 46.1 0.04 12 44.3 47.8 albedo: 0.079 26 July 2001 J.-M. Petit, J. J. Kavelaars, M. J. Holman, B. Gladman () 99 SDO 68.2 0.49 4 34.7 101.7 albedo: 0.124 25 July 2001 B. Gladman () 96 cubewano (cold) 42.7 0.04 1 41.0 44.4 albedo: 0.152 27 July 2001 B. Gladman () 99 SDO 51.0 0.32 1 34.6 67.3 albedo: 0.124 24 July 2001 B. Gladman () 159 cubewano (cold) 45.3 0.01 2 44.7 46.0 albedo: 0.152 24 July 2001 Maunakea () 90 cubewano (cold)? 45.7 0.10 3 41.2 50.1 albedo: 0.152 25 July 2001 Maunakea () 149 cubewano (cold)? 46.5 0.00 2 46.5 46.5 albedo: 0.152 25 July 2001 Maunakea () 55 SDO 67.0 0.52 1 32.4 101.5 albedo: 0.124 27 July 2001 Maunakea () 237 cubewano (hot)? 46.8 0.00 28 46.8 46.8 albedo: 0.079 24 July 2001 Maunakea () 157 cubewano (hot)? 46.1 0.10 7 41.5 50.6 albedo: 0.079 24 July 2001 B. Gladman () 75 cubewano (cold) 43.3 0.05 2 41.0 45.6 albedo: 0.152 12 August 2001 C. Veillet () 162 cubewano (hot) 40.0 0.07 9 37.2 42.9 albedo: 0.079 19 August 2001 M. W. Buie () 160 cubewano (hot)? 46.3 0.19 24 37.5 55.0 albedo: 0.079 19 August 2001 M. W. Buie () 143 cubewano (cold) 44.5 0.08 4 41.0 48.1 albedo: 0.152 20 August 2001 M. W. Buie () 393 cubewano (hot)? 39.4 0.13 6 34.2 44.6 albedo: 0.079 20 August 2001 Cerro Tololo Observatory, La Serena () 215 cubewano (cold)? 43.7 0.00 3 43.7 43.7 albedo: 0.152 20 August 2001 Cerro Tololo Observatory, La Serena () 187 cubewano (cold)? 44.0 0.00 2 44.0 44.0 albedo: 0.152 24 a0August 2001 Maunakea () 128 cubewano (cold) 44.0 0.02 5 42.9 45.0 binary: 126 km; albedo: 0.093 20 August 2001 M. W. Buie () 186 cubewano (cold) 44.2 0.03 1 42.9 45.5 albedo: 0.152 19 August 2001 M. W. Buie () 150 cubewano (cold) 44.3 0.06 2 41.5 47.0 albedo: 0.152 12 September 2001 Kitt Peak () 94 cubewano (cold)? 44.2 0.12 1 38.7 49.7 albedo: 0.152 12 September 2001 M. W. Buie () 136 cubewano (cold) 43.3 0.04 3 41.7 44.9 albedo: 0.152 12 September 2001 M. W. Buie () 183 cubewano (hot)? 42.3 0.15 7 35.9 48.6 albedo: 0.079 18 September 2001 Palomar Mountain () 78 cubewano (cold) 45.8 0.09 3 41.6 50.0 albedo: 0.152 18 September 2001 P. Nicholson, C. Dumas, A. W. Harris, B. Gladman () 124 cubewano (cold) 45.7 0.14 2 39.4 52.0 albedo: 0.152 17 October 2001 O. R. Hainaut, D. Kinoshita () 182 cubewano (hot)? 43.3 0.10 5 39.0 47.7 albedo: 0.079 17 October 2001 European Southern Observatory, La Silla () 123 plutino? 39.6 0.07 5 37.0 42.3 albedo: 0.074 17 October 2001 European Southern Observatory, La Silla () 148 plutino? 39.6 0.15 3 33.8 45.4 albedo: 0.074 19 October 2001 M. W. Buie () 171 cubewano (cold) 44.5 0.07 4 41.4 47.5 albedo: 0.152 19 October 2001 M. W. Buie () 238 twotino 48.0 0.07 1 44.5 51.4 albedo: 0.126; BRmag: 1.49; taxonomy: IR 9 November 2001 B. Gladman, J. J. Kavelaars () 91 plutino 39.8 0.25 19 29.8 49.8 albedo: 0.074 9 December 2001 S. S. Sheppard, D. C. Jewitt, J. Kleyna () 173 SDO 76.5 0.46 2 41.3 111.7 albedo: 0.124 9 December 2001 Maunakea () 113 cubewano (cold)? 43.8 0.05 2 41.7 45.9 albedo: 0.152 9 December 2001 Maunakea () 124 cubewano (hot)? 43.5 0.00 10 43.5 43.5 albedo: 0.079 9 December 2001 Maunakea () 98 cubewano (cold)? 44.0 0.00 1 44.0 44.0 albedo: 0.152 9 December 2001 Maunakea () 75 cubewano (cold)? 43.9 0.07 2 41.0 46.9 albedo: 0.152 11 December 2001 J. Kleyna, S. S. Sheppard, D. C. Jewitt () 114 other TNO 37.7 0.11 11 33.4 41.9 albedo: 0.13 9 December 2001 S. S. Sheppard, J. Kleyna, D. C. Jewitt () 217 cubewano (hot) 43.7 0.08 7 40.2 47.2 albedo: 0.079 9 December 2001 Maunakea () 188 cubewano (hot)? 45.7 0.00 6 45.7 45.7 albedo: 0.079 10 December 2001 Maunakea () 136 cubewano (hot)? 42.3 0.00 6 42.3 42.3 albedo: 0.079 11 December 2001 J. Kleyna, D. C. Jewitt, S. S. Sheppard () 115 cubewano (cold) 44.0 0.03 2 42.7 45.3 albedo: 0.152

References