The following is a partial list of unnumbered trans-Neptunian objects for principal designations assigned within 2003. , it contains a total of 114 bodies. For more information see the description on the main page. Also see list for the previous and next year.
2003
Designation First Observed (discovered) D (km) Orbital description Remarks Refs Date Observer(Site) Class a e i q Q 27 January 2003 Hubble Space Telescope () 16 cubewano (cold)? 42.7 0.01 2 42.1 43.4 albedo: 0.152 27 January 2003 Hubble Space Telescope () 25 cubewano (cold)? 43.4 0.10 3 39.1 47.8 albedo: 0.152 27 January 2003 Hubble Space Telescope () 14 cubewano (cold)? 44.0 0.03 2 42.6 45.4 albedo: 0.152 24 March 2003 Maunakea () 124 cubewano (cold) 42.5 0.03 0 41.3 43.7 albedo: 0.152 24 March 2003 Maunakea () 150 cubewano (hot)? 43.0 0.11 24 38.2 47.8 albedo: 0.079 31 March 2003 M. W. Buie () 103 other TNO 38.3 0.03 5 37.3 39.2 albedo: 0.13 30 March 2003 M. W. Buie () 113 cubewano (cold)? 44.0 0.07 1 40.8 47.1 albedo: 0.152 30 March 2003 M. W. Buie () 121 centaur 71.0 0.61 19 27.6 114.5 albedo: 0.058 30 March 2003 M. W. Buie () 130 other TNO 43.2 0.18 23 35.4 51.0 albedo: 0.13 31 March 2003 M. W. Buie () 248 plutino 39.3 0.24 4 30.0 48.5 albedo: 0.074 31 March 2003 M. W. Buie () 130 cubewano (cold) 43.6 0.06 4 40.9 46.3 albedo: 0.152 24 March 2003 Maunakea () 126 SDO 61.5 0.38 6 38.0 85.1 albedo: 0.124; BRmag: 1.32; taxonomy: BR 1 April 2003 M. W. Buie () 215 cubewano (hot) 45.4 0.06 6 42.8 48.0 albedo: 0.079 1 April 2003 Kitt Peak () 197 cubewano (hot)? 44.5 0.05 7 42.2 46.7 albedo: 0.079 26 April 2003 Maunakea () 111 plutino 39.3 0.17 28 32.6 45.9 albedo: 0.074 26 April 2003 Maunakea () 83 plutino 39.2 0.19 1 31.6 46.7 albedo: 0.074 26 April 2003 Maunakea () 112 cubewano (cold) 43.9 0.09 1 40.1 47.6 albedo: 0.152 26 April 2003 Maunakea () 107 plutino? 39.7 0.25 22 29.8 49.6 albedo: 0.074 26 April 2003 Maunakea () 159 cubewano (hot)? 41.1 0.10 7 37.1 45.2 albedo: 0.079 26 April 2003 Maunakea () 256 SDO 54.8 0.10 6 49.4 60.2 albedo: 0.124 26 April 2003 Maunakea () 228 cubewano (cold)? 122.5 0.55 176 55.4 189.6 albedo: 0.152 26 April 2003 Maunakea () 86 cubewano (cold) 46.1 0.15 4 39.1 53.1 albedo: 0.152 26 April 2003 Maunakea () 183 other TNO 56.7 0.10 31 51.1 62.3 albedo: 0.13 26 April 2003 Maunakea () 180 cubewano (hot)? 47.1 0.23 30 36.4 57.8 albedo: 0.079; BRmag: 1.01 26 April 2003 Maunakea () 107 cubewano (cold) 43.5 0.01 3 43.3 43.7 albedo: 0.152 30 May 2003 M. W. Buie () 163 cubewano (cold) 43.7 0.04 2 41.8 45.6 albedo: 0.152 30 May 2003 Cerro Tololo Observatory, La Serena () 124 cubewano (cold)? 44.8 0.12 2 39.5 50.2 albedo: 0.152 1 June 2003 M. W. Buie () 188 res1:4 75.5 0.52 6 35.9 115.1 albedo: 0.126 1 June 2003 Cerro Tololo Observatory, La Serena () 196 cubewano (cold)? 45.1 0.12 5 39.9 50.4 albedo: 0.152 1 June 2003 Cerro Tololo Observatory, La Serena () 142 cubewano (cold)? 42.9 0.04 2 41.1 44.7 albedo: 0.152 1 June 2003 M. W. Buie, K. J. Meech () 206 cubewano (hot)? 47.0 0.17 7 39.0 55.0 albedo: 0.079 1 June 2003 Cerro Tololo Observatory, La Serena () 148 plutino? 39.3 0.21 19 31.2 47.4 albedo: 0.074 1 June 2003 Cerro Tololo Observatory, La Serena () 97 other TNO 39.5 0.13 3 34.5 44.5 albedo: 0.13 1 June 2003 Cerro Tololo Observatory, La Serena () 237 cubewano (hot)? 43.5 0.00 7 43.5 43.5 albedo: 0.079 25 June 2003 Maunakea () 200 other TNO 33.8 0.39 2 20.8 46.9 albedo: 0.13 31 July 2003 Maunakea () 119 SDO 68.9 0.52 21 33.3 104.5 albedo: 0.124 26 August 2003 M. W. Buie () 172 cubewano (hot) 44.3 0.11 11 39.5 49.1 albedo: 0.079 25 August 2003 Cerro Tololo Observatory, La Serena () 136 cubewano (cold)? 43.5 0.00 3 43.5 43.5 albedo: 0.152 23 August 2003 M. W. Buie () 125 cubewano (cold) 43.3 0.03 2 42.0 44.7 albedo: 0.152 26 August 2003 M. W. Buie () 174 cubewano (cold) 43.1 0.04 4 41.2 45.0 albedo: 0.152 23 August 2003 M. W. Buie () 117 cubewano (cold) 43.1 0.05 4 41.1 45.1 albedo: 0.152 23 August 2003 M. W. Buie () 113 cubewano (cold) 43.1 0.03 2 41.7 44.5 albedo: 0.152 24 August 2003 M. W. Buie () 114 cubewano (cold) 42.5 0.02 2 41.7 43.3 albedo: 0.152 24 August 2003 M. W. Buie () 148 cubewano (cold) 44.3 0.04 3 42.3 46.2 albedo: 0.152 25 August 2003 M. W. Buie () 135 cubewano (cold) 43.1 0.01 2 42.6 43.6 albedo: 0.152 29 August 2003 Maunakea () 8 centaur 83.4 0.84 16 13.2 153.6 albedo: 0.058 25 August 2003 M. W. Buie () 176 cubewano (cold) 43.3 0.05 3 41.3 45.4 albedo: 0.152; taxonomy: IR 23 August 2003 M. W. Buie () 112 cubewano (cold) 42.6 0.11 4 38.0 47.3 albedo: 0.152 29 August 2003 Maunakea () 23 centaur 33.3 0.50 7 16.5 50.1 albedo: 0.058 23 August 2003 M. W. Buie () 116 res3:4 36.6 0.10 7 33.0 40.2 albedo: 0.126 25 August 2003 M. W. Buie () 111 cubewano (cold) 46.3 0.14 4 39.6 52.9 albedo: 0.152 23 August 2003 M. W. Buie () 149 cubewano (cold) 44.0 0.06 2 41.4 46.7 albedo: 0.152 23 August 2003 Cerro Tololo Observatory, La Serena () 124 cubewano (cold) 43.4 0.01 2 43.0 43.7 albedo: 0.152 25 August 2003 Cerro Tololo Observatory, La Serena () 157 cubewano (hot)? 43.6 0.14 26 37.6 49.7 albedo: 0.079 23 August 2003 Cerro Tololo Observatory, La Serena () 117 other TNO 39.5 0.35 33 25.7 53.3 albedo: 0.13 23 August 2003 Cerro Tololo Observatory, La Serena () 74 plutino? 39.5 0.27 5 28.7 50.2 albedo: 0.074 24 August 2003 M. W. Buie () 159 cubewano (cold) 43.8 0.02 3 42.7 44.8 albedo: 0.152 23 August 2003 M. W. Buie () 76 res4:7 43.8 0.25 28 32.8 54.8 albedo: 0.126 31 August 2003 Maunakea () 156 cubewano (cold)? 44.9 0.07 3 41.8 48.1 albedo: 0.152 24 August 2003 M. W. Buie () 81 cubewano (cold) 42.8 0.05 4 40.5 45.0 binary: 80 km; albedo: 0.31 23 August 2003 M. W. Buie () 131 SDO 38.9 0.10 39 34.9 42.9 albedo: 0.124 24 August 2003 Cerro Tololo Observatory, La Serena () 216 cubewano (hot)? 43.6 0.00 6 43.6 43.6 albedo: 0.079 25 September 2003 Maunakea () 119 plutino 39.5 0.27 7 28.7 50.3 albedo: 0.074 28 September 2003 Cerro Tololo Observatory, La Serena () 137 SDO 194.7 0.80 17 39.6 349.7 albedo: 0.124 3 October 2003 Maunakea () 65 cubewano (cold) 44.8 0.09 1 40.7 48.8 binary: 51 km; albedo: 0.285 3 October 2003 Maunakea () 143 cubewano (cold) 43.4 0.06 3 40.9 45.9 albedo: 0.152 3 October 2003 Maunakea () 188 cubewano (hot) 43.9 0.05 8 41.6 46.1 albedo: 0.079 22 October 2003 M. W. Buie () 384 SDO 86.3 0.20 165 69.2 103.4 albedo: 0.124 23 October 2003 M. W. Buie () 315 cubewano (hot)? 47.4 0.05 19 45.0 49.7 albedo: 0.079 23 October 2003 M. W. Buie () 140 cubewano (cold)? 45.9 0.11 4 41.0 50.9 albedo: 0.152 23 October 2003 M. W. Buie () 169 SDO 70.5 0.44 7 39.8 101.2 albedo: 0.124 23 October 2003 M. W. Buie () 288 cubewano (hot)? 41.3 0.10 19 37.0 45.6 albedo: 0.079 23 October 2003 M. W. Buie () 162 cubewano (hot)? 46.5 0.16 30 39.0 54.1 albedo: 0.079 23 October 2003 Kitt Peak () 188 cubewano (hot) 43.4 0.10 7 39.1 47.7 albedo: 0.079 24 October 2003 Kitt Peak () 136 cubewano (hot)? 43.9 0.07 7 41.0 46.9 albedo: 0.079 24 October 2003 Kitt Peak () 172 cubewano (hot)? 43.2 0.11 13 38.5 47.9 albedo: 0.079 23 October 2003 M. W. Buie () 113 cubewano (cold) 42.7 0.08 3 39.3 46.1 albedo: 0.152 24 October 2003 Kitt Peak () 118 cubewano (cold)? 44.9 0.08 4 41.5 48.3 albedo: 0.152 24 October 2003 Kitt Peak () 188 cubewano (hot)? 46.1 0.19 18 37.4 54.7 albedo: 0.079 24 October 2003 M. W. Buie () 111 cubewano (cold) 45.3 0.12 1 40.0 50.5 albedo: 0.152 22 October 2003 Kitt Peak () 162 plutino? 39.4 0.19 5 32.0 46.8 albedo: 0.074 23 October 2003 Kitt Peak () 194 plutino? 39.5 0.12 3 34.6 44.4 albedo: 0.074 22 October 2003 M. W. Buie () 186 cubewano (hot)? 41.7 0.10 25 37.7 45.7 albedo: 0.079 22 October 2003 M. W. Buie () 175 cubewano (cold) 43.1 0.06 2 40.7 45.4 albedo: 0.152 23 October 2003 M. W. Buie () 180 cubewano (cold)? 48.8 0.11 3 43.5 54.0 albedo: 0.152 24 October 2003 M. W. Buie () 85 other TNO 40.8 0.16 16 34.2 47.4 albedo: 0.13 23 October 2003 M. W. Buie () 109 cubewano (cold) 43.9 0.03 2 42.6 45.2 albedo: 0.152 24 October 2003 M. W. Buie () 163 plutino 39.6 0.22 11 31.1 48.2 albedo: 0.074 23 October 2003 M. W. Buie () 254 cubewano (hot)? 47.3 0.11 11 42.1 52.5 albedo: 0.079 23 October 2003 M. W. Buie () 185 cubewano (hot)? 51.5 0.11 10 46.1 56.9 albedo: 0.079 23 October 2003 M. W. Buie () 317 cubewano (hot)? 43.4 0.11 11 38.7 48.1 albedo: 0.079 18 October 2003 LPL/Spacewatch II () 5 unusual 33.5 0.90 19 3.5 63.4 albedo: 0.051 24 October 2003 M. W. Buie () 123 cubewano (cold) 49.6 0.17 4 41.4 57.8 albedo: 0.152; BRmag: 1.39; taxonomy: BB 22 October 2003 M. W. Buie () 181 cubewano (hot) 45.5 0.13 5 39.5 51.5 albedo: 0.079 24 October 2003 Kitt Peak () 136 cubewano (hot)? 43.2 0.14 22 37.2 49.1 albedo: 0.079 23 November 2003 M. W. Buie () 110 plutino 39.6 0.24 5 30.1 49.2 albedo: 0.074 17 November 2003 Cerro Tololo Observatory, La Serena () 97 plutino 39.4 0.25 22 29.4 49.4 albedo: 0.074 29 November 2003 Cerro Tololo Observatory, La Serena () 108 plutino 39.7 0.24 7 30.0 49.4 albedo: 0.074 20 November 2003 Kitt Peak () 312 cubewano (hot)? 46.3 0.00 6 46.3 46.3 albedo: 0.079 20 November 2003 Kitt Peak () 113 cubewano (cold)? 44.0 0.05 3 41.8 46.2 albedo: 0.152 20 November 2003 M. W. Buie () 184 cubewano (hot)? 43.6 0.10 9 39.3 47.9 albedo: 0.079 21 November 2003 M. W. Buie () 150 cubewano (hot)? 54.0 0.26 5 40.1 68.0 albedo: 0.079 16 December 2003 Maunakea () 147 cubewano (cold) 44.0 0.09 1 40.2 47.7 albedo: 0.152 16 December 2003 Maunakea () 150 cubewano (hot)? 42.0 0.15 20 35.7 48.3 albedo: 0.079 16 December 2003 Maunakea () 119 cubewano (hot)? 41.2 0.06 23 38.9 43.6 albedo: 0.079 16 December 2003 Maunakea () 144 cubewano (cold) 44.6 0.00 3 44.5 44.7 albedo: 0.152 24 December 2003 Maunakea () 116 cubewano (cold) 44.3 0.08 1 40.5 48.0 albedo: 0.152 24 December 2003 Maunakea () 179 cubewano (hot) 43.6 0.06 10 41.1 46.2 albedo: 0.079 24 December 2003 Maunakea () 146 cubewano (cold) 43.8 0.02 4 42.7 44.9 binary: 96 km; albedo: 0.152 24 December 2003 Maunakea () 125 cubewano (cold) 43.8 0.02 2 42.8 44.7 albedo: 0.152 24 December 2003 Maunakea () 188 cubewano (hot)? 47.3 0.22 16 36.8 57.7 albedo: 0.079 24 December 2003 Maunakea () 123 cubewano (cold) 43.8 0.05 5 41.8 45.8 albedo: 0.152 16 December 2003 Maunakea () 74 plutino? 39.6 0.16 11 33.4 45.7 albedo: 0.074 24 December 2003 Maunakea () 143 cubewano (hot)? 43.2 0.12 13 38.2 48.1 albedo: 0.079
References