List of unnumbered trans-Neptunian objects: 2000
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The following is a partial list of unnumbered trans-Neptunian objects for principal designations assigned within 2000. As of October 2025[update], it contains a total of 115 bodies.[1][2][3][4] For more information see the description on the main page. Also see list for the previous and next year.
2000
| Designation | First Observed (discovered) | D (km) | Orbital description | Remarks | Refs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | Observer (Site) |
Class | a (AU) |
e | i (°) |
q (AU) |
Q (AU) | ||||
| 2000 AB229 | 5 January 2000 | Lincoln Laboratory ETS (704) | 10 | damocloid | 52.24 | 0.9 | 68.28 | 2.2 | 102.1 | — | MPC · JPL |
| 2000 AB255 | 1 January 2000 | Mauna Kea Obs. (568) | 69 | other TNO | 43.1 | 0.10 | 20 | 38.8 | 47.4 | — | MPC · JPL |
| 2000 AC255 | 1 January 2000 | Mauna Kea Obs. (568) | 69 | other TNO | 46.8 | 0.16 | 35 | 39.3 | 54.3 | — | MPC · JPL |
| 2000 AD255 | 1 January 2000 | Mauna Kea Obs. (568) | 69 | other TNO | 42.2 | 0.04 | 33 | 40.4 | 44.0 | — | MPC · JPL |
| 2000 AE255 | 6 January 2000 | Mauna Kea Obs. (568) | 91 | other TNO | 44.1 | 0.06 | 36 | 41.3 | 46.8 | — | MPC · JPL |
| 2000 AF255 | 6 January 2000 | J. J. Kavelaars A. Morbidelli (568) | 275 | other TNO | 48.4 | 0.25 | 31 | 36.4 | 60.4 | BR-mag: 1.78 | MPC · JPL |
| 2000 CK105 | 6 February 2000 | M. W. Buie (695) | 285 | plutino | 39.2 | 0.24 | 8 | 29.9 | 48.6 | — | MPC · JPL |
| 2000 CL104 | 5 February 2000 | M. W. Buie (695) | 191 | cubewano (cold) | 44.2 | 0.08 | 1 | 40.8 | 47.5 | BR-mag: 1.85; taxonomy: RR | MPC · JPL |
| 2000 CL105 | 6 February 2000 | M. W. Buie (695) | 139 | cubewano (cold) | 42.8 | 0.05 | 4 | 40.5 | 45.0 | BR-mag: 1.52 | MPC · JPL |
| 2000 CM104 | 5 February 2000 | M. W. Buie (695) | 109 | cubewano? | 44.0 | 0.08 | 1 | 40.5 | 47.6 | — | MPC · JPL |
| 2000 CN104 | 5 February 2000 | Kitt Peak Obs. (695) | 173 | other TNO | 42.9 | 0.00 | 32 | 42.9 | 42.9 | — | MPC · JPL |
| 2000 CN114 | 5 February 2000 | M. W. Buie (695) | 126 | cubewano (cold) | 43.7 | 0.05 | 2 | 41.7 | 45.6 | — | MPC · JPL |
| 2000 CO114 | 5 February 2000 | Kitt Peak Obs. (695) | 173 | other TNO | 46.1 | 0.06 | 33 | 43.3 | 49.0 | — | MPC · JPL |
| 2000 CP105 | 5 February 2000 | Kitt Peak Obs. (695) | 109 | SDO | 83.2 | 0.58 | 19 | 34.5 | 132 | — | MPC · JPL |
| 2000 CP114 | 6 February 2000 | Kitt Peak Obs. (695) | 119 | plutino? | 39.5 | 0.17 | 31 | 32.9 | 46.0 | — | MPC · JPL |
| 2000 CS105 | 6 February 2000 | Kitt Peak Obs. (695) | 119 | cubewano? | 44.7 | 0.14 | 5 | 38.3 | 51.1 | — | MPC · JPL |
| 2000 CY105 | 5 February 2000 | Kitt Peak Obs. (695) | 164 | cubewano? | 45.5 | 0.09 | 10 | 41.4 | 49.7 | — | MPC · JPL |
| 2000 FB8 | 27 March 2000 | J. J. Kavelaars B. Gladman J.-M. Petit M. J. Holman (568) | 108 | plutino | 39.1 | 0.30 | 5 | 27.5 | 50.8 | — | MPC · JPL |
| 2000 FC8 | 27 March 2000 | J. J. Kavelaars B. Gladman J.-M. Petit M. J. Holman (568) | 83 | cubewano (cold) | 43.8 | 0.07 | 1 | 40.8 | 46.8 | — | MPC · JPL |
| 2000 FH8 | 29 March 2000 | J. J. Kavelaars B. Gladman J.-M. Petit M. J. Holman (568) | 121 | cubewano (cold) | 43.4 | 0.04 | 2 | 41.8 | 44.9 | — | MPC · JPL |
| 2000 FR53 | 31 March 2000 | S. S. Sheppard D. C. Jewitt C. Trujillo (568) | 109 | res · 5:9 | 44.4 | 0.08 | 3 | 40.7 | 48.1 | — | MPC · JPL |
| 2000 FS53 | 31 March 2000 | S. S. Sheppard D. C. Jewitt C. Trujillo (568) | 92 | cubewano (cold) | 43.0 | 0.03 | 2 | 41.6 | 44.4 | BR-mag: 1.77 | MPC · JPL |
| 2000 FT53 | 31 March 2000 | D. C. Jewitt C. Trujillo S. S. Sheppard (568) | 112 | cubewano (hot) | 45.2 | 0.16 | 12 | 38.1 | 52.3 | — | MPC · JPL |
| 2000 FU53 | 31 March 2000 | S. S. Sheppard D. C. Jewitt C. Trujillo (568) | 68 | cubewano? | 41.3 | 0.04 | 6 | 39.5 | 43.2 | — | MPC · JPL |
| 2000 FW53 | 31 March 2000 | Mauna Kea Obs. (568) | 151 | other TNO | 47.2 | 0.15 | 7 | 40.3 | 54.1 | — | MPC · JPL |
| 2000 FY53 | 31 March 2000 | C. Trujillo S. S. Sheppard D. C. Jewitt (568) | 78 | plutino? | 68.5 | 0.74 | 22 | 17.5 | 120 | — | MPC · JPL |
| 2000 GF147 | 5 April 2000 | C. Trujillo S. S. Sheppard D. C. Jewitt (568) | 79 | cubewano? | 103 | 0.63 | 4 | 38.2 | 167 | — | MPC · JPL |
| 2000 GK147 | 2 April 2000 | Mauna Kea Obs. (568) | 55 | SDO | 57.3 | 0.46 | 6 | 31.0 | 83.7 | — | MPC · JPL |
| 2000 GL147 | 2 April 2000 | Mauna Kea Obs. (568) | 78 | plutino? | 39.3 | 0.20 | 13 | 31.4 | 47.3 | — | MPC · JPL |
| 2000 GM147 | 3 April 2000 | Mauna Kea Obs. (568) | 124 | plutino? | 39.6 | 0.19 | 18 | 32.0 | 47.2 | — | MPC · JPL |
| 2000 GV146 | 2 April 2000 | D. C. Jewitt C. Trujillo S. S. Sheppard (568) | 100 | cubewano (cold) | 44.0 | 0.07 | 4 | 41.1 | 46.9 | — | MPC · JPL |
| 2000 GW146 | 3 April 2000 | Mauna Kea Obs. (568) | 100 | other TNO | 41.2 | 0.00 | 29 | 41.2 | 41.2 | — | MPC · JPL |
| 2000 GX146 | 3 April 2000 | C. Trujillo S. S. Sheppard D. C. Jewitt (568) | 92 | cubewano (cold) | 44.0 | 0.02 | 1 | 43.2 | 44.7 | — | MPC · JPL |
| 2000 GY146 | 3 April 2000 | C. Trujillo S. S. Sheppard D. C. Jewitt (568) | 87 | cubewano (cold) | 43.8 | 0.02 | 3 | 42.8 | 44.9 | — | MPC · JPL |
| 2000 GZ146 | 3 April 2000 | C. Trujillo S. S. Sheppard D. C. Jewitt (568) | 95 | cubewano? | 93.6 | 0.57 | 2 | 40.5 | 147 | — | MPC · JPL |
| 2000 JF81 | 6 May 2000 | O. R. Hainaut C. E. Delahodde M. Vair (809) | 121 | cubewano (cold) | 46.2 | 0.10 | 2 | 41.3 | 51.1 | — | MPC · JPL |
| 2000 JH81 | 6 May 2000 | La Silla Obs. (809) | 60 | cubewano? | 46.2 | 0.00 | 11 | 46.2 | 46.2 | — | MPC · JPL |
| 2000 KL4 | 28 May 2000 | M. J. Holman B. Gladman J. J. Kavelaars (695) | 126 | other TNO | 38.8 | 0.06 | 21 | 36.3 | 41.2 | — | MPC · JPL |
| 2000 KP65 | 27 May 2000 | Lowell Obs.-LONEOS (699) | 48 | damocloid | 89.44 | 0.9 | 45.54 | 3.3 | 175.5 | — | MPC · JPL |
| 2000 OB51 | 25 July 2000 | B. Gladman J.-M. Petit (809) | 103 | other TNO | 38.1 | 0.04 | 4 | 36.5 | 39.7 | — | MPC · JPL |
| 2000 OH67 | 29 July 2000 | M. W. Buie S. D. Kern (807) | 245 | cubewano (hot) | 44.6 | 0.02 | 6 | 43.5 | 45.6 | — | MPC · JPL |
| 2000 OP67 | 31 July 2000 | M. W. Buie S. D. Kern (807) | 115 | res · 4:7 | 44.1 | 0.19 | 1 | 35.6 | 52.5 | — | MPC · JPL |
| 2000 PA30 | 5 August 2000 | M. J. Holman (568) | 83 | cubewano (cold) | 47.5 | 0.14 | 0 | 40.9 | 54.0 | — | MPC · JPL |
| 2000 PB30 | 5 August 2000 | Mauna Kea Obs. (568) | 82 | cubewano? | 42.5 | 0.00 | 8 | 42.5 | 42.5 | — | MPC · JPL |
| 2000 PC30 | 5 August 2000 | M. J. Holman (568) | 100 | cubewano (cold) | 43.4 | 0.02 | 1 | 42.4 | 44.5 | — | MPC · JPL |
| 2000 PD30 | 5 August 2000 | M. J. Holman (568) | 132 | cubewano (cold) | 46.9 | 0.03 | 5 | 45.6 | 48.3 | — | MPC · JPL |
| 2000 PF30 | 5 August 2000 | M. J. Holman (568) | 99 | SDO | 77.7 | 0.51 | 6 | 38.1 | 117 | — | MPC · JPL |
| 2000 PG30 | 5 August 2000 | M. J. Holman (568) | 96 | cubewano (cold) | 45.5 | 0.10 | 5 | 40.8 | 50.2 | — | MPC · JPL |
| 2000 PH30 | 5 August 2000 | M. J. Holman (568) | 104 | SDO | 78.4 | 0.51 | 8 | 38.4 | 118 | — | MPC · JPL |
| 2000 PL30 | 5 August 2000 | M. J. Holman (568) | 138 | other TNO | 42.3 | 0.23 | 6 | 32.3 | 52.2 | — | MPC · JPL |
| 2000 PM30 | 5 August 2000 | M. J. Holman (568) | 87 | cubewano (cold) | 44.4 | 0.05 | 2 | 42.1 | 46.6 | — | MPC · JPL |
| 2000 PN30 | 5 August 2000 | M. J. Holman (568) | 80 | cubewano (cold) | 45.3 | 0.11 | 2 | 40.3 | 50.2 | — | MPC · JPL |
| 2000 PQ30 | 3 August 2000 | J.-M. Petit (809) | 63 | cubewano (cold) | 42.1 | 0.07 | 1 | 39.2 | 45.0 | — | MPC · JPL |
| 2000 PR30 | 7 August 2000 | La Silla Obs. (809) | 82 | cubewano? | 42.3 | 0.07 | 1 | 39.2 | 45.5 | — | MPC · JPL |
| 2000 PS30 | 7 August 2000 | La Silla Obs. (809) | 66 | SDO | 64.5 | 0.46 | 3 | 35.0 | 93.9 | — | MPC · JPL |
| 2000 PU29 | 5 August 2000 | M. J. Holman (568) | 80 | cubewano (cold) | 42.9 | 0.03 | 1 | 41.6 | 44.2 | — | MPC · JPL |
| 2000 PW29 | 5 August 2000 | M. J. Holman (568) | 73 | cubewano (cold) | 44.6 | 0.06 | 2 | 41.9 | 47.2 | — | MPC · JPL |
| 2000 PX29 | 5 August 2000 | M. J. Holman (568) | 155 | cubewano (hot) | 43.0 | 0.06 | 6 | 40.4 | 45.6 | — | MPC · JPL |
| 2000 PY29 | 5 August 2000 | M. J. Holman (568) | 115 | cubewano (cold) | 44.6 | 0.05 | 1 | 42.4 | 46.8 | — | MPC · JPL |
| 2000 PZ29 | 5 August 2000 | Mauna Kea Obs. (568) | 109 | cubewano? | 44.9 | 0.00 | 14 | 44.9 | 44.9 | — | MPC · JPL |
| 2000 QB226 | 29 August 2000 | O. R. Hainaut C. E. Delahodde (809) | 164 | cubewano? | 96.3 | 0.56 | 3 | 42.8 | 150 | — | MPC · JPL |
| 2000 QD226 | 29 August 2000 | La Silla Obs. (809) | 119 | cubewano? | 41.2 | 0.00 | 2 | 41.2 | 41.2 | — | MPC · JPL |
| 2000 QF226 | 29 August 2000 | La Silla Obs. (809) | 75 | cubewano? | 46.5 | 0.00 | 2 | 46.5 | 46.5 | — | MPC · JPL |
| 2000 QG226 | 29 August 2000 | O. R. Hainaut C. E. Delahodde (809) | 136 | plutino? | 65.4 | 0.42 | 2 | 38.0 | 92.9 | — | MPC · JPL |
| 2000 QH226 | 29 August 2000 | O. R. Hainaut C. E. Delahodde (809) | 75 | plutino | 39.8 | 0.20 | 3 | 32.0 | 47.6 | — | MPC · JPL |
| 2000 QJ226 | 29 August 2000 | La Silla Obs. (809) | 113 | plutino? | 39.4 | 0.11 | 10 | 34.9 | 43.9 | — | MPC · JPL |
| 2000 QJ252 | 25 August 2000 | Cerro Tololo Obs. (807) | 104 | cubewano? | 43.2 | 0.12 | 12 | 37.9 | 48.6 | — | MPC · JPL |
| 2000 QK226 | 29 August 2000 | O. R. Hainaut C. E. Delahodde (809) | 63 | SDO | 78.7 | 0.53 | 24 | 36.9 | 120 | — | MPC · JPL |
| 2000 QK252 | 27 August 2000 | Cerro Tololo Obs. (807) | 189 | cubewano? | 45.1 | 0.20 | 8 | 36.3 | 54.0 | — | MPC · JPL |
| 2000 QL226 | 29 August 2000 | O. R. Hainaut C. E. Delahodde (809) | 87 | res · 4:7 | 44.0 | 0.19 | 3 | 35.6 | 52.5 | — | MPC · JPL |
| 2000 QL252 | 27 August 2000 | M. W. Buie (807) | 114 | SDO | 46.3 | 0.26 | 24 | 34.2 | 58.4 | — | MPC · JPL |
| 2000 QN251 | 26 August 2000 | M. W. Buie (807) | 122 | res · 3:5 | 42.5 | 0.13 | 0 | 37.0 | 48.0 | BR-mag: 1.63; taxonomy: IR-RR | MPC · JPL |
| 2000 QN252 | 28 August 2000 | Cerro Tololo Obs. (807) | 120 | other TNO | 36.5 | 0.00 | 2 | 36.5 | 36.5 | — | MPC · JPL |
| 2000 QO252 | 28 August 2000 | Cerro Tololo Obs. (807) | 137 | cubewano? | 45.6 | 0.15 | 13 | 38.9 | 52.2 | — | MPC · JPL |
| 2000 SB331 | 23 September 2000 | Mauna Kea Obs. (568) | 99 | cubewano? | 46.4 | 0.00 | 6 | 46.4 | 46.4 | — | MPC · JPL |
| 2000 SC331 | 23 September 2000 | Mauna Kea Obs. (568) | 90 | cubewano? | 46.5 | 0.00 | 9 | 46.5 | 46.5 | — | MPC · JPL |
| 2000 SD331 | 23 September 2000 | Mauna Kea Obs. (568) | 109 | cubewano? | 43.7 | 0.00 | 3 | 43.7 | 43.7 | — | MPC · JPL |
| 2000 SE331 | 23 September 2000 | Mauna Kea Obs. (568) | 90 | cubewano? | 43.5 | 0.00 | 5 | 43.5 | 43.5 | — | MPC · JPL |
| 2000 SF331 | 23 September 2000 | Mauna Kea Obs. (568) | 114 | cubewano? | 44.0 | 0.00 | 4 | 44.0 | 44.0 | — | MPC · JPL |
| 2000 SG331 | 23 September 2000 | Mauna Kea Obs. (568) | 95 | cubewano? | 44.2 | 0.00 | 2 | 44.2 | 44.2 | — | MPC · JPL |
| 2000 SH331 | 23 September 2000 | Mauna Kea Obs. (568) | 99 | cubewano? | 44.8 | 0.00 | 3 | 44.8 | 44.8 | — | MPC · JPL |
| 2000 SJ331 | 23 September 2000 | Mauna Kea Obs. (568) | 75 | cubewano? | 41.4 | 0.00 | 3 | 41.4 | 41.4 | — | MPC · JPL |
| 2000 SK331 | 23 September 2000 | B. Gladman (568) | 90 | cubewano? | 45.1 | 0.13 | 3 | 39.1 | 51.0 | — | MPC · JPL |
| 2000 SL331 | 23 September 2000 | Mauna Kea Obs. (568) | 79 | cubewano? | 41.8 | 0.00 | 3 | 41.8 | 41.8 | — | MPC · JPL |
| 2000 SM331 | 23 September 2000 | Mauna Kea Obs. (568) | 60 | SDO | 57.4 | 0.44 | 12 | 32.3 | 82.4 | — | MPC · JPL |
| 2000 SO331 | 23 September 2000 | Mauna Kea Obs. (568) | 75 | cubewano? | 43.2 | 0.07 | 2 | 40.1 | 46.2 | — | MPC · JPL |
| 2000 SP331 | 23 September 2000 | Mauna Kea Obs. (568) | 82 | cubewano? | 43.0 | 0.10 | 3 | 38.6 | 47.5 | — | MPC · JPL |
| 2000 SQ331 | 23 September 2000 | Mauna Kea Obs. (568) | 40 | centaur | 69.8 | 0.71 | 5 | 20.5 | 119 | — | MPC · JPL |
| 2000 SR331 | 23 September 2000 | B. Gladman (568) | 65 | res · 2:5 | 55.2 | 0.44 | 4 | 31.1 | 79.3 | — | MPC · JPL |
| 2000 SS331 | 23 September 2000 | Mauna Kea Obs. (568) | 48 | SDO | 63.7 | 0.52 | 3 | 30.5 | 96.9 | — | MPC · JPL |
| 2000 ST331 | 23 September 2000 | B. Gladman (568) | 62 | cubewano? | 42.1 | 0.11 | 3 | 37.5 | 46.7 | — | MPC · JPL |
| 2000 SU331 | 23 September 2000 | Mauna Kea Obs. (568) | 48 | SDO | 59.9 | 0.47 | 4 | 31.5 | 88.2 | — | MPC · JPL |
| 2000 SW370 | 23 September 2000 | Mauna Kea Obs. (568) | 68 | cubewano? | 43.8 | 0.09 | 6 | 40.1 | 47.5 | — | MPC · JPL |
| 2000 SX370 | 23 September 2000 | Mauna Kea Obs. (568) | 95 | other TNO | 45.0 | 0.00 | 18 | 45.0 | 45.0 | — | MPC · JPL |
| 2000 SY370 | 23 September 2000 | B. Gladman J. J. Kavelaars (568) | 83 | cubewano (cold) | 44.1 | 0.04 | 2 | 42.2 | 45.9 | — | MPC · JPL |
| 2000 WL183 | 26 November 2000 | O. R. Hainaut C. E. Delahodde A. C. Delsanti (809) | 100 | cubewano (cold) | 43.5 | 0.07 | 4 | 40.5 | 46.5 | — | MPC · JPL |
| 2000 WM183 | 26 November 2000 | O. R. Hainaut C. E. Delahodde A. C. Delsanti (809) | 186 | cubewano (hot) | 44.9 | 0.11 | 7 | 39.8 | 50.0 | — | MPC · JPL |
| 2000 WN183 | 26 November 2000 | O. R. Hainaut C. E. Delahodde A. C. Delsanti (809) | 132 | cubewano (cold) | 44.6 | 0.11 | 4 | 39.7 | 49.6 | — | MPC · JPL |
| 2000 WO183 | 26 November 2000 | O. R. Hainaut C. E. Delahodde A. C. Delsanti (809) | 107 | cubewano (cold) | 43.7 | 0.06 | 2 | 41.0 | 46.5 | — | MPC · JPL |
| 2000 WV12 | 24 November 2000 | B. Gladman J.-M. Petit (809) | 126 | cubewano (cold) | 43.5 | 0.04 | 2 | 41.7 | 45.2 | — | MPC · JPL |
| 2000 WW12 | 24 November 2000 | B. Gladman J.-M. Petit (809) | 114 | SDO | 52.8 | 0.41 | 3 | 30.9 | 74.7 | — | MPC · JPL |
| 2000 WX12 | 24 November 2000 | La Silla Obs. (809) | 104 | cubewano? | 43.8 | 0.14 | 12 | 37.8 | 49.8 | — | MPC · JPL |
| 2000 YA2 | 17 December 2000 | M. J. Holman B. Gladman T. Grav (695) | 132 | cubewano (cold) | 44.1 | 0.06 | 2 | 41.3 | 46.9 | — | MPC · JPL |
| 2000 YB29 | 22 December 2000 | Mauna Kea Obs. (568) | 124 | plutino? | 39.4 | 0.31 | 8 | 27.2 | 51.6 | BR-mag: 1.50 | MPC · JPL |
| 2000 YD2 | 17 December 2000 | Kitt Peak Obs. (695) | 109 | other TNO | 42.9 | 0.10 | 22 | 38.5 | 47.4 | — | MPC · JPL |
| 2000 YE2 | 17 December 2000 | M. J. Holman B. Gladman T. Grav (695) | 81 | twotino | 47.9 | 0.20 | 4 | 38.2 | 57.6 | — | MPC · JPL |
| 2000 YF2 | 17 December 2000 | M. J. Holman B. Gladman T. Grav (695) | 132 | cubewano (cold) | 45.5 | 0.07 | 2 | 42.3 | 48.8 | — | MPC · JPL |
| 2000 YG2 | 17 December 2000 | Kitt Peak Obs. (695) | 120 | other TNO | 42.8 | 0.09 | 25 | 39.2 | 46.5 | — | MPC · JPL |
| 2000 YQ142 | 22 December 2000 | Mauna Kea Obs. (568) | 143 | plutino? | 39.5 | 0.28 | 24 | 28.3 | 50.7 | — | MPC · JPL |
| 2000 YV1 | 16 December 2000 | M. J. Holman B. Gladman T. Grav (695) | 118 | cubewano (cold) | 43.9 | 0.03 | 1 | 42.5 | 45.2 | — | MPC · JPL |
| 2000 YW1 | 16 December 2000 | Kitt Peak Obs. (695) | 137 | cubewano? | 42.9 | 0.00 | 1 | 42.9 | 42.9 | — | MPC · JPL |
| 2000 YX1 | 16 December 2000 | M. J. Holman B. Gladman T. Grav (695) | 129 | cubewano (cold) | 45.6 | 0.07 | 5 | 42.2 | 49.0 | — | MPC · JPL |
| 2000 YY1 | 17 December 2000 | M. J. Holman B. Gladman T. Grav (695) | 212 | centaur | 63.0 | 0.53 | 8 | 29.8 | 96.2 | — | MPC · JPL |
| 2000 YY142 | 23 December 2000 | Mauna Kea Obs. (568) | 119 | cubewano? | 44.9 | 0.10 | 2 | 40.5 | 49.3 | — | MPC · JPL |
| 2000 YZ1 | 17 December 2000 | M. J. Holman B. Gladman T. Grav (695) | 90 | cubewano? | 44.4 | 0.12 | 6 | 38.9 | 49.9 | — | MPC · JPL |
