# List of unnumbered trans-Neptunian objects: 2009

The following is a partial list of unnumbered trans-Neptunian objects for principal designations assigned within 2009. As of February 2025, it contains a total of 45 bodies. For more information see the description on the main page. Also see list for the previous and next year.

## 2009

| Designation | First Observed (discovered) | First Observed (discovered) | D (km) | Orbital description | Orbital description | Orbital description | Orbital description | Orbital description | Orbital description | Remarks | Refs |
| Designation | Date | Observer (Site) | D (km) | Class | a (AU) | e | i (°) | q (AU) | Q (AU) | Remarks | Refs |
| 2009 DJ$_{143}$ | 18 February 2009 | Mauna Kea Obs. (568) | 169 | res · 4:13 | 65.6 | 0.43 | 18 | 37.4 | 93.7 | — | MPC · JPL |
| 2009 DK$_{143}$ | 18 February 2009 | Mauna Kea Obs. (568) | 54 | cubewano? | 43.5 | 0.17 | 10 | 36.0 | 51.1 | — | MPC · JPL |
| 2009 DL$_{143}$ | 18 February 2009 | Mauna Kea Obs. (568) | 109 | res · 5:9 | 43.4 | 0.05 | 11 | 41.3 | 45.4 | — | MPC · JPL |
| 2009 DM$_{143}$ | 18 February 2009 | Mauna Kea Obs. (568) | 50 | SDO | 54.3 | 0.34 | 16 | 35.9 | 72.8 | — | MPC · JPL |
| 2009 DN$_{143}$ | 18 February 2009 | Mauna Kea Obs. (568) | 82 | plutino | 39.2 | 0.20 | 11 | 31.6 | 46.9 | — | MPC · JPL |
| 2009 DO$_{143}$ | 18 February 2009 | Mauna Kea Obs. (568) | 89 | cubewano (hot) | 44.1 | 0.12 | 12 | 38.7 | 49.5 | — | MPC · JPL |
| 2009 DP$_{143}$ | 18 February 2009 | Mauna Kea Obs. (568) | 87 | other TNO | 43.8 | 0.12 | 16 | 38.7 | 48.8 | — | MPC · JPL |
| 2009 DQ$_{143}$ | 18 February 2009 | Mauna Kea Obs. (568) | 105 | other TNO | 44.3 | 0.27 | 11 | 32.5 | 56.2 | — | MPC · JPL |
| 2009 DR$_{143}$ | 18 February 2009 | Mauna Kea Obs. (568) | 159 | cubewano (hot) | 46.7 | 0.16 | 10 | 39.2 | 54.2 | — | MPC · JPL |
| 2009 DS$_{143}$ | 18 February 2009 | Mauna Kea Obs. (568) | 79 | SDO | 49.0 | 0.24 | 11 | 37.3 | 60.7 | — | MPC · JPL |
| 2009 DT$_{143}$ | 22 February 2009 | Mauna Kea Obs. (568) | 46 | other TNO | 38.3 | 0.12 | 30 | 33.5 | 43.0 | — | MPC · JPL |
| 2009 JA$_{19}$ | 14 May 2009 | Mauna Kea Obs. (568) | 125 | twotino? | 47.7 | 0.36 | 16 | 30.4 | 64.9 | — | MPC · JPL |
| 2009 JB$_{19}$ | 14 May 2009 | Mauna Kea Obs. (568) | 120 | other TNO | 46.5 | 0.16 | 19 | 39.0 | 54.1 | — | MPC · JPL |
| 2009 JC$_{19}$ | 15 May 2009 | Mauna Kea Obs. (568) | 119 | SDO | 50.8 | 0.32 | 31 | 34.5 | 67.0 | — | MPC · JPL |
| 2009 JD$_{19}$ | 15 May 2009 | Mauna Kea Obs. (568) | 130 | plutino? | 39.7 | 0.10 | 21 | 35.5 | 43.9 | — | MPC · JPL |
| 2009 JE$_{19}$ | 15 May 2009 | Mauna Kea Obs. (568) | 188 | plutino | 39.4 | 0.30 | 22 | 27.5 | 51.3 | — | MPC · JPL |
| 2009 JF$_{19}$ | 15 May 2009 | Mauna Kea Obs. (568) | 87 | other TNO | 44.0 | 0.30 | 16 | 30.8 | 57.2 | — | MPC · JPL |
| 2009 JT$_{18}$ | 14 May 2009 | Mauna Kea Obs. (568) | 79 | other TNO | 44.0 | 0.27 | 19 | 32.2 | 55.8 | — | MPC · JPL |
| 2009 JU$_{18}$ | 14 May 2009 | Mauna Kea Obs. (568) | 75 | SDO | 56.4 | 0.32 | 27 | 38.3 | 74.5 | — | MPC · JPL |
| 2009 JV$_{18}$ | 14 May 2009 | Mauna Kea Obs. (568) | 112 | cubewano (hot) | 45.0 | 0.15 | 14 | 38.2 | 51.8 | — | MPC · JPL |
| 2009 JW$_{18}$ | 14 May 2009 | Mauna Kea Obs. (568) | 83 | other TNO | 46.1 | 0.11 | 18 | 41.0 | 51.1 | — | MPC · JPL |
| 2009 JX$_{18}$ | 14 May 2009 | Mauna Kea Obs. (568) | 61 | centaur | 37.6 | 0.46 | 20 | 20.2 | 55.0 | — | MPC · JPL |
| 2009 JY$_{18}$ | 14 May 2009 | Mauna Kea Obs. (568) | 72 | SDO | 54.3 | 0.45 | 22 | 30.1 | 78.6 | — | MPC · JPL |
| 2009 JZ$_{18}$ | 14 May 2009 | Mauna Kea Obs. (568) | 131 | plutino | 39.2 | 0.24 | 24 | 29.6 | 48.8 | — | MPC · JPL |
| 2009 KA$_{37}$ | 27 May 2009 | Mauna Kea Obs. (568) | 72 | SDO | 53.7 | 0.37 | 15 | 33.9 | 73.4 | — | MPC · JPL |
| 2009 KJ$_{30}$ | 25 May 2009 | Mauna Kea Obs. (568) | 91 | other TNO | 46.6 | 0.19 | 31 | 37.8 | 55.4 | — | MPC · JPL |
| 2009 KK$_{30}$ | 25 May 2009 | M. Yagi (568) | 143 | SDO | 60.1 | 0.37 | 14 | 37.9 | 82.3 | — | MPC · JPL |
| 2009 KL$_{30}$ | 25 May 2009 | M. Yagi (568) | 132 | other TNO | 45.8 | 0.20 | 23 | 36.8 | 54.7 | — | MPC · JPL |
| 2009 KM$_{30}$ | 25 May 2009 | Mauna Kea Obs. (568) | 66 | other TNO | 41.7 | 0.01 | 4 | 41.4 | 42.0 | — | MPC · JPL |
| 2009 KN$_{30}$ | 25 May 2009 | M. Yagi (568) | 95 | res · 2:7 | 69.9 | 0.56 | 5 | 30.5 | 109 | — | MPC · JPL |
| 2009 KO$_{30}$ | 25 May 2009 | M. Yagi (568) | 98 | cubewano (hot) | 44.4 | 0.07 | 9 | 41.2 | 47.6 | — | MPC · JPL |
| 2009 KT$_{36}$ | 20 May 2009 | Mauna Kea Obs. (568) | 97 | centaur | 43.4 | 0.37 | 30 | 27.5 | 59.4 | — | MPC · JPL |
| 2009 KU$_{36}$ | 20 May 2009 | Mauna Kea Obs. (568) | 60 | other TNO | 43.0 | 0.16 | 20 | 35.9 | 50.1 | — | MPC · JPL |
| 2009 KV$_{36}$ | 25 May 2009 | Mauna Kea Obs. (568) | 95 | other TNO | 42.9 | 0.04 | 16 | 41.3 | 44.5 | — | MPC · JPL |
| 2009 KW$_{36}$ | 27 May 2009 | Mauna Kea Obs. (568) | 76 | other TNO | 45.0 | 0.15 | 30 | 38.1 | 51.9 | — | MPC · JPL |
| 2009 KX$_{36}$ | 27 May 2009 | Mauna Kea Obs. (568) | 95 | SDO | 67.8 | 0.34 | 19 | 44.7 | 90.9 | — | MPC · JPL |
| 2009 KY$_{36}$ | 27 May 2009 | Mauna Kea Obs. (568) | 84 | centaur | 51.2 | 0.46 | 25 | 27.7 | 74.8 | — | MPC · JPL |
| 2009 KZ$_{36}$ | 27 May 2009 | Mauna Kea Obs. (568) | 48 | centaur | 48.4 | 0.59 | 17 | 20.0 | 76.8 | — | MPC · JPL |
| 2009 MA$_{10}$ | 21 June 2009 | Mauna Kea Obs. (568) | 45 | cubewano? | 44.4 | 0.05 | 2 | 42.1 | 46.7 | — | MPC · JPL |
| 2009 MF$_{10}$ | 27 June 2009 | S. S. Sheppard A. Udalski C. Trujillo K. Ulaczyk (807) | 335 | centaur | 57.9 | 0.53 | 26 | 27.5 | 88.3 | — | MPC · JPL |
| 2009 MG$_{10}$ | 27 June 2009 | C. Trujillo A. Udalski S. S. Sheppard I. Soszynski (807) | 144 | twotino | 48.4 | 0.36 | 20 | 31.1 | 65.6 | — | MPC · JPL |
| 2009 UF$_{156}$ | 18 October 2009 | Mauna Kea Obs. (568) | 167 | cubewano (cold) | 43.0 | 0.02 | 1 | 42.2 | 43.9 | — | MPC · JPL |
| 2009 XM$_{26}$ | 8 December 2009 | Pan-STARRS (F51) | 146 | centaur | 43.2 | 0.42 | 22 | 25.1 | 61.3 | — | MPC · JPL |