List of unnumbered trans-Neptunian objects
This is a list of unnumbered trans-Neptunian objects (TNOs) first observed since 1993 and grouped by the year of principal provisional designation. The data is sourced from the Minor Planet Center's (MPC) List of Trans Neptunian Objects and List Of Centaurs and Scattered-Disk Objects.[2][3] These objects will eventually be numbered as secured discoveries with an official discoverer determined by the MPC. Until then, additional observations are needed to sufficiently decrease an object's orbital uncertainty. As of April 2022, there are 3,141 unnumbered objects, defined here as minor planets with a semi-major axis larger than 30.1 AU (Neptune's average orbital distance from the Sun).[lower-alpha 1]
 |
| TNOs: a vs. e (semi-log plot, 30–1000 AU):[1] |
|
Resonant plutinos (39 AU) and twotinos (48 AU) Inner and outer classical objects (< 39 and > 49 AU) Other resonant objects besides plutinos and twotinos Classical Kuiper belt objects (cubewanos) Scattered disc objects (SDO) Other TNOs (dots) and centaurs (asterisk) Sednoids, prominent ETNOs |
| Distribution of 3,590 listed TNO objects (with a > 30.1 AU, including candidates) by subclass from Johnston's Archive (hover)[1] |
The list also contains information from "Johnston's Archive", such as an object's diameter, its dynamical class and binary status with the satellite's diameter, as well as its albedo, spectral taxonomy and B–R color index.[1] Members of the extreme trans-Neptunian objects (ESDOs, EDDOs and sednoids) – with a semi-major axis greater than 150 AU and perihelion greater than 30 AU – are also identified.
Statistics
- Numbered TNOs: 901 obj. (22.3%)
- Unnumbered TNOs: 3,141 obj. (77.7%)
List
1993
| Designation | First Observed (discovered) | D (km) | Orbital description | Remarks | Refs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | Observer (Site) |
Class | a (AU) |
e | i (°) |
q (AU) |
Q (AU) | ||||
| 1993 RP | 15 September 1993 | Mauna Kea Obs. (568) | 48 | res · 4:5 | 35.1 | 0.06 | 4 | 33.2 | 37.0 | — | MPC · JPL |
1994
| Designation | First Observed (discovered) | D (km) | Orbital description | Remarks | Refs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | Observer (Site) |
Class | a (AU) |
e | i (°) |
q (AU) |
Q (AU) | ||||
| 1994 ES2 | 13 March 1994 | J. X. Luu D. C. Jewitt (568) | 100 | cubewano (cold) | 45.6 | 0.11 | 1 | 40.4 | 50.8 | BR-mag: 1.65 | MPC · JPL |
| 1994 TG | 3 October 1994 | Mauna Kea Obs. (568) | 204 | cubewano (hot) | 42.3 | 0.00 | 7 | 42.3 | 42.3 | — | MPC · JPL |
| 1994 TG2 | 8 October 1994 | La Silla Obs. (809) | 137 | cubewano? | 42.4 | 0.00 | 2 | 42.4 | 42.4 | — | MPC · JPL |
| 1994 TH | 3 October 1994 | Mauna Kea Obs. (568) | 166 | other TNO | 40.9 | 0.00 | 16 | 40.9 | 40.9 | — | MPC · JPL |
1995
| Designation | First Observed (discovered) | D (km) | Orbital description | Remarks | Refs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | Observer (Site) |
Class | a (AU) |
e | i (°) |
q (AU) |
Q (AU) | ||||
| 1995 DB2 | 24 February 1995 | D. C. Jewitt J. X. Luu (568) | 100 | cubewano (cold) | 46.2 | 0.13 | 4 | 40.1 | 52.2 | — | MPC · JPL |
| 1995 FB21 | 29 March 1995 | Siding Spring Observatory (413) | 109 | cubewano? | 42.4 | 0.00 | 1 | 42.4 | 42.4 | — | MPC · JPL |
| 1995 GA7 | 3 April 1995 | Mauna Kea Obs. (568) | 150 | plutino? | 39.5 | 0.12 | 4 | 34.8 | 44.2 | — | MPC · JPL |
| 1995 GJ | 3 April 1995 | Mauna Kea Obs. (568) | 166 | other TNO | 42.9 | 0.09 | 23 | 39.0 | 46.8 | — | MPC · JPL |
| 1995 GY7 | 6 April 1995 | La Silla Obs. (809) | 109 | cubewano? | 41.3 | 0.00 | 1 | 41.3 | 41.3 | — | MPC · JPL |
| 1995 KJ1 | 30 May 1995 | Mauna Kea Obs. (568) | 172 | cubewano? | 43.5 | 0.00 | 3 | 43.5 | 43.5 | — | MPC · JPL |
| 1995 KK1 | 30 May 1995 | Mauna Kea Obs. (568) | 94 | plutino? | 39.5 | 0.19 | 9 | 32.0 | 47.0 | — | MPC · JPL |
| 1995 YY3 | 24 December 1995 | Mauna Kea Obs. (568) | 83 | other TNO | 39.2 | 0.22 | 0 | 30.6 | 47.7 | — | MPC · JPL |
1996
| Designation | First Observed (discovered) | D (km) | Orbital description | Remarks | Refs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | Observer (Site) |
Class | a (AU) |
e | i (°) |
q (AU) |
Q (AU) | ||||
| 1996 AS20 | 14 January 1996 | Spacewatch (691) | 77 | centaur | 35.8 | 0.62 | 11 | 13.6 | 58.0 | — | MPC · JPL |
| 1996 KV1 | 21 May 1996 | C. Trujillo D. C. Jewitt J. X. Luu (568) | 178 | cubewano (hot) | 45.5 | 0.12 | 8 | 40.2 | 50.9 | — | MPC · JPL |
| 1996 KX1 | 22 May 1996 | Mauna Kea Obs. (568) | 94 | plutino? | 39.5 | 0.10 | 2 | 35.7 | 43.4 | — | MPC · JPL |
| 1996 KY1 | 16 May 1996 | Mauna Kea Obs. (568) | 119 | plutino? | 39.5 | 0.10 | 31 | 35.7 | 43.3 | — | MPC · JPL |
| 1996 RQ20 | 6 September 1996 | D. L. Rabinowitz (675) | 173 | other TNO | 44.0 | 0.10 | 32 | 39.4 | 48.7 | BR-mag: 1.56; taxonomy: IR | MPC · JPL |
1997
| Designation | First Observed (discovered) | D (km) | Orbital description | Remarks | Refs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | Observer (Site) |
Class | a (AU) |
e | i (°) |
q (AU) |
Q (AU) | ||||
| 1997 CW29 | 8 February 1997 | Mauna Kea Obs. (568) | 237 | plutino? | 39.4 | 0.08 | 19 | 36.3 | 42.5 | — | MPC · JPL |
| 1997 GA45 | 3 April 1997 | B. Gladman (568) | 98 | cubewano (hot) | 47.0 | 0.17 | 8 | 38.9 | 55.0 | — | MPC · JPL |
| 1997 QH4 | 27 August 1997 | D. C. Jewitt C. Trujillo J. X. Luu K. Berney (568) | 204 | cubewano (hot) | 43.0 | 0.09 | 13 | 39.2 | 46.7 | BR-mag: 1.68; taxonomy: RR | MPC · JPL |
| 1997 RL13 | 5 September 1997 | Palomar Obs. (675) | 43 | cubewano? | 44.5 | 0.00 | 6 | 44.5 | 44.5 | — | MPC · JPL |
| 1997 RX9 | 7 September 1997 | B. Gladman (675) | 91 | other TNO | 41.8 | 0.05 | 30 | 39.7 | 44.0 | — | MPC · JPL |
| 1997 RY6 | 6 September 1997 | La Palma Obs. (950) | 162 | cubewano (hot) | 41.4 | 0.00 | 12 | 41.4 | 41.4 | — | MPC · JPL |
| 1997 TX8 | 5 October 1997 | Palomar Obs. (675) | 94 | plutino? | 39.3 | 0.19 | 9 | 32.0 | 46.6 | — | MPC · JPL |
| 1997 UG25 | 26 October 1997 | La Palma Obs. (950) | 68 | cubewano? | 43.3 | 0.00 | 1 | 43.3 | 43.3 | — | MPC · JPL |
1998
| Designation | First Observed (discovered) | D (km) | Orbital description | Remarks | Refs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | Observer (Site) |
Class | a (AU) |
e | i (°) |
q (AU) |
Q (AU) | ||||
| 1998 FS144 | 23 March 1998 | Northfield Mount Hermon School (807) | 235 | cubewano (hot) | 41.6 | 0.02 | 10 | 40.6 | 42.5 | BR-mag: 1.53; taxonomy: IR | MPC · JPL |
| 1998 HL151 | 29 April 1998 | D. C. Jewitt J. X. Luu C. Trujillo D. J. Tholen (568) | 100 | other TNO | 40.7 | 0.09 | 28 | 37.2 | 44.3 | BR-mag: 1.06 | MPC · JPL |
| 1998 HN151 | 21 April 1998 | J. Kormendy R. Wainscoat D. J. Tholen D. C. Jewitt (568) | 91 | other TNO | 37.9 | 0.06 | 25 | 35.8 | 40.0 | — | MPC · JPL |
| 1998 HO151 | 22 April 1998 | R. Wainscoat J. Kormendy D. C. Jewitt J. X. Luu (568) | 95 | other TNO | 41.3 | 0.10 | 17 | 37.3 | 45.2 | — | MPC · JPL |
| 1998 HR151 | 28 April 1998 | Mauna Kea Obs. (568) | 65 | cubewano? | 45.5 | 0.12 | 7 | 39.9 | 51.1 | — | MPC · JPL |
| 1998 KD66 | 29 May 1998 | Cerro Tololo Obs. (807) | 57 | cubewano? | 43.1 | 0.05 | 5 | 40.9 | 45.3 | — | MPC · JPL |
| 1998 KE66 | 29 May 1998 | Cerro Tololo Obs. (807) | 54 | cubewano? | 42.1 | 0.00 | 3 | 42.1 | 42.1 | — | MPC · JPL |
| 1998 KF66 | 29 May 1998 | Cerro Tololo Obs. (807) | 52 | plutino? | 39.5 | 0.21 | 6 | 31.1 | 47.9 | — | MPC · JPL |
| 1998 KG66 | 29 May 1998 | Cerro Tololo Obs. (807) | 57 | cubewano? | 45.2 | 0.00 | 4 | 45.2 | 45.2 | — | MPC · JPL |
| 1998 KS65 | 29 May 1998 | G. Bernstein (807) | 98 | cubewano (cold) | 44.2 | 0.04 | 1 | 42.3 | 46.0 | BR-mag: 1.73; taxonomy: RR-IR | MPC · JPL |
| 1998 KY61 | 29 May 1998 | G. Bernstein (807) | 115 | cubewano (cold) | 44.7 | 0.04 | 2 | 43.0 | 46.5 | — | MPC · JPL |
| 1998 UR43 | 22 October 1998 | M. W. Buie (695) | 103 | plutino | 39.4 | 0.22 | 9 | 30.8 | 48.1 | BR-mag: 1.27; taxonomy: BR | MPC · JPL |
| 1998 WS31 | 18 November 1998 | M. W. Buie (695) | 105 | plutino | 39.4 | 0.20 | 7 | 31.4 | 47.3 | BR-mag: 1.32; taxonomy: IR-BR | MPC · JPL |
| 1998 WV24 | 18 November 1998 | M. W. Buie (695) | 104 | other TNO | 39.0 | 0.04 | 2 | 37.4 | 40.6 | BR-mag: 1.27; taxonomy: BR; binary: 91 km | MPC · JPL |
| 1998 WV31 | 19 November 1998 | M. W. Buie (695) | 150 | plutino | 39.3 | 0.27 | 6 | 28.6 | 50.1 | BR-mag: 1.31; taxonomy: BR | MPC · JPL |
| 1998 WW31 | 18 November 1998 | M. W. Buie (695) | 148 | cubewano (hot) | 44.7 | 0.09 | 7 | 40.7 | 48.6 | albedo: 0.054; binary: 123 km | MPC · JPL |
| 1998 WX24 | 18 November 1998 | M. W. Buie (695) | 152 | cubewano (cold) | 43.3 | 0.04 | 1 | 41.5 | 45.1 | BR-mag: 1.79; taxonomy: RR | MPC · JPL |
| 1998 WY31 | 18 November 1998 | M. W. Buie (695) | 132 | cubewano (cold) | 45.0 | 0.11 | 2 | 39.9 | 50.2 | — | MPC · JPL |
| 1998 WZ24 | 18 November 1998 | Kitt Peak Obs. (695) | 113 | plutino? | 39.5 | 0.18 | 5 | 32.4 | 46.6 | — | MPC · JPL |
| 1998 WZ31 | 19 November 1998 | M. W. Buie (695) | 108 | plutino | 39.4 | 0.17 | 15 | 32.8 | 46.1 | BR-mag: 1.26; taxonomy: BB-BR | MPC · JPL |
1999–2007
- List of unnumbered trans-Neptunian objects: 1999
- List of unnumbered trans-Neptunian objects: 2000
- List of unnumbered trans-Neptunian objects: 2001
- List of unnumbered trans-Neptunian objects: 2002
- List of unnumbered trans-Neptunian objects: 2003
- List of unnumbered trans-Neptunian objects: 2004
- List of unnumbered trans-Neptunian objects: 2005
- List of unnumbered trans-Neptunian objects: 2006
- List of unnumbered trans-Neptunian objects: 2007
2008
| Designation | First Observed (discovered) | D (km) | Orbital description | Remarks | Refs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | Observer (Site) |
Class | a (AU) |
e | i (°) |
q (AU) |
Q (AU) | ||||
| 2008 AP118 | 6 January 2008 | Mauna Kea Obs. (568) | 95 | cubewano? | 44.1 | 0.16 | 1 | 36.9 | 51.3 | — | MPC · JPL |
| 2008 AQ118 | 6 January 2008 | P. A. Wiegert (568) | 257 | other TNO | 41.3 | 0.06 | 25 | 38.9 | 43.6 | — | MPC · JPL |
| 2008 AU138 | 8 January 2008 | Mauna Kea Obs. (568) | 254 | centaur | 32.3 | 0.38 | 43 | 20.1 | 44.5 | — | MPC · JPL |
| 2008 JO41 | 11 May 2008 | Mauna Kea Obs. (568) | 79 | SDO | 88.3 | 0.55 | 49 | 39.9 | 137 | — | MPC · JPL |
| 2008 LD18 | 7 June 2008 | Mauna Kea Obs. (568) | 91 | other TNO | 40.2 | 0.30 | 15 | 28.0 | 52.5 | — | MPC · JPL |
| 2008 UA332 | 26 October 2008 | L. H. Wasserman (807) | 207 | res · 1:4 | 76.8 | 0.52 | 31 | 36.9 | 117 | — | MPC · JPL |
| 2008 UB332 | 26 October 2008 | Cerro Tololo Obs. (807) | 197 | plutino? | 39.5 | 0.24 | 33 | 29.9 | 49.1 | — | MPC · JPL |
2009–2018
- List of unnumbered trans-Neptunian objects: 2009
- List of unnumbered trans-Neptunian objects: 2010
- List of unnumbered trans-Neptunian objects: 2011
- List of unnumbered trans-Neptunian objects: 2012
- List of unnumbered trans-Neptunian objects: 2013
- List of unnumbered trans-Neptunian objects: 2014
- List of unnumbered trans-Neptunian objects: 2015
- List of unnumbered trans-Neptunian objects: 2016
- List of unnumbered trans-Neptunian objects: 2017
- List of unnumbered trans-Neptunian objects: 2018
2019
| Designation | First Observed (discovered) | D (km) | Orbital description | Remarks | Refs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | Observer (Site) |
Class | a (AU) |
e | i (°) |
q (AU) |
Q (AU) | ||||
| 2019 AC77 | 11 January 2019 | Cerro Tololo Obs. (807) | 181 | SDO | 57.1 | 0.38 | 12 | 35.3 | 78.9 | — | MPC · JPL |
| 2019 EA5 | 6 March 2019 | Cerro Tololo Obs. (807) | 171 | SDO | 69.8 | 0.45 | 28 | 38.2 | 101 | — | MPC · JPL |
| 2019 EB5 | 4 March 2019 | Cerro Tololo Obs. (807) | 155 | SDO | 52.3 | 0.32 | 8 | 35.6 | 68.9 | — | MPC · JPL |
| 2019 ET5 | 5 March 2019 | Mauna Kea Obs. (568) | 187 | SDO | 52.4 | 0.26 | 12 | 38.9 | 66.0 | — | MPC · JPL |
| 2019 EU5 | 6 January 2016 | Mauna Kea Obs. (568) | 198 | EDDO | 973 | 0.95 | 18 | 46.7 | 1900 | ETNO | MPC · JPL |
| 2019 EV5 | 5 March 2019 | Mauna Kea Obs. (568) | 117 | SDO | 55.7 | 0.43 | 9 | 31.7 | 79.8 | — | MPC · JPL |
| 2019 GJ23 | 5 April 2019 | Korea Microlensing Telescope Network-CTIO (W93) | 130 | cubewano (cold) | 43.7 | 0.08 | 1 | 40.4 | 47.0 | — | MPC · JPL |
| 2019 GZ129 | 4 April 2019 | Cerro Tololo Obs. (807) | 146 | SDO | 61.8 | 0.36 | 9 | 39.3 | 84.3 | — | MPC · JPL |
| 2019 QQ8 | 28 August 2019 | Pan-STARRS (F51) | 10 | centaur | 61.8 | 0.89 | 24 | 6.8 | 117 | — | MPC · JPL |
| 2019 RO4 | 4 September 2019 | Lowell Discovery Tel. (G37) | 164 | other TNO | 42.0 | 0.17 | 20 | 34.7 | 49.3 | — | MPC · JPL |
| 2019 SJ187 | 26 September 2019 | Cerro Tololo Obs. (807) | 192 | SDO | 74.5 | 0.50 | 21 | 36.9 | 112 | — | MPC · JPL |
| 2019 SS149 | 24 September 2019 | Cerro Tololo Obs. (807) | 213 | SDO | 119 | 0.70 | 15 | 35.4 | 203 | — | MPC · JPL |
| 2019 TX7 | 7 October 2019 | Pan-STARRS (F51) | 10 | centaur | 33.2 | 0.80 | 5 | 6.6 | 59.9 | — | MPC · JPL |
| 2019 UH12 | 27 October 2019 | Pan-STARRS 2 (F52) | 40 | centaur | 52.9 | 0.85 | 47 | 7.9 | 98.0 | — | MPC · JPL |
2021
| Designation | First Observed (discovered) | D (km) | Orbital description | Remarks | Refs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | Observer (Site) |
Class | a (AU) |
e | i (°) |
q (AU) |
Q (AU) | ||||
| 2021 CP5 | 7 February 2021 | Pan-STARRS (F51) | 20 | centaur | 332 | 0.97 | 9 | 10.6 | 654 | — | MPC · JPL |
| 2021 DM15 | 17 February 2021 | Mauna Kea Obs. (568) | 87 | cubewano? | 45.4 | 0.03 | 2 | 43.9 | 47.0 | binary: 70 km | MPC · JPL |
| 2021 DN15 | 17 February 2021 | Mauna Kea Obs. (568) | 98 | cubewano? | 43.8 | 0.04 | 3 | 41.9 | 45.7 | binary: 93 km | MPC · JPL |
| 2021 DO15 | 16 February 2021 | Mauna Kea Obs. (568) | 208 | other TNO | 50.9 | 0.18 | 23 | 41.6 | 60.2 | — | MPC · JPL |
| 2021 DP15 | 16 February 2021 | Mauna Kea Obs. (568) | 214 | SDO | 90.0 | 0.66 | 4 | 30.8 | 149 | — | MPC · JPL |
| 2021 DQ15 | 16 February 2021 | Mauna Kea Obs. (568) | 307 | centaur | 79.4 | 0.65 | 3 | 27.9 | 131 | — | MPC · JPL |
| 2021 DR15 | 10 March 2005 | Apache Point-Sloan Digital Sky Survey (645) | 713 | SDO | 67.2 | 0.44 | 31 | 37.8 | 96.5 | — | MPC · JPL |
| 2021 DS15 | 17 February 2021 | Mauna Kea Obs. (568) | 144 | cubewano? | 43.3 | 0.05 | 3 | 41.2 | 45.4 | binary: 119 km | MPC · JPL |
| 2021 DK18 | 17 February 2021 | Mauna Kea Obs. (568) | ETNO | 731.633 | 0.939 | 15.450 | 44.498 | 1418 | MPC · JPL | ||
| 2021 EE44 | 5 March 2021 | Lowell Discovery Tel. (G37) | 279 | centaur? | 42.4 | 0.34 | 8 | 27.9 | 56.9 | — | MPC · JPL |
| 2021 GU122 | 5 April 2021 | Korea Microlensing Telescope Network-CTIO (W93) | 90 | cubewano? | 60.5 | 0.33 | 12 | 40.9 | 80.1 | — | MPC · JPL |
| 2021 GV122 | 12 April 2021 | Korea Microlensing Telescope Network-CTIO (W93) | 94 | plutino? | 39.2 | 0.09 | 17 | 35.9 | 42.6 | — | MPC · JPL |
| 2021 GW122 | 12 April 2021 | Korea Microlensing Telescope Network-CTIO (W93) | 82 | cubewano? | 42.6 | 0.07 | 1 | 39.5 | 45.8 | — | MPC · JPL |
| 2021 RR205 | 5 September 2021 | Mauna Kea Obs. | 200 | sednoid | 990.9 | 0.943 | 7.644 | 55.541 | 1926 | — | MPC · JPL |
2022
| Designation | First Observed (discovered) | D (km) | Orbital description | Remarks | Refs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | Observer (Site) |
Class | a (AU) |
e | i (°) |
q (AU) |
Q (AU) | ||||
| 2022 FA7 | 12 April 2021 | Korea Microlensing Telescope Network-CTIO (W93) | 202 | other TNO | 44.0 | 0.31 | 15 | 30.5 | 57.5 | — | MPC · JPL |
| 2022 FR6 | 1 March 2020 | Korea Microlensing Telescope Network-CTIO (W93) | 112 | cubewano? | 44.1 | 0.08 | 7 | 40.8 | 47.5 | — | MPC · JPL |
| 2022 GP4 | 12 April 2021 | Korea Microlensing Telescope Network-CTIO (W93) | 81 | cubewano? | 43.6 | 0.12 | 10 | 38.5 | 48.8 | — | MPC · JPL |
| 2022 GY3 | 16 April 2021 | Korea Microlensing Telescope Network-CTIO (W93) | 114 | cubewano? | 42.7 | 0.14 | 2 | 36.7 | 48.6 | — | MPC · JPL |
| 2022 GZ3 | 16 April 2021 | Korea Microlensing Telescope Network-CTIO (W93) | 105 | cubewano? | 41.6 | 0.07 | 16 | 38.5 | 44.8 | — | MPC · JPL |
Ignored objects
The Minor Planet Center does not include the following 111 objects with a semi-major axis larger than that of Neptune in its respective lists (see § top).[2][3][lower-alpha 1] The data is sourced from the List of Known Trans-Neptunian Objects at Johnston's Archive.[1]
| Designation | D (km) | Orbital description | Remarks | Refs | |||||
|---|---|---|---|---|---|---|---|---|---|
| Class | a (AU) |
e | i (°) |
q (AU) |
Q (AU) | ||||
| (65407) 2002 RP120 | 15 | damocloid | 53.71 | 0.9 | 119.38 | 2.4 | 104.9 | albedo: 0.098; BR-mag: 1.37 | MPC · JPL |
| 385571 Otrera | 70 | NT | 30.27 | 0.0 | 1.43 | 29.3 | 31.2 | — | MPC · JPL |
| 385695 Clete | 91 | NT | 30.24 | 0.0 | 5.24 | 28.6 | 31.8 | — | MPC · JPL |
| (523794) 2015 RR245 | 542 | res · 2:9 | 82.52 | 0.5 | 7.54 | 34.2 | 130.8 | — | MPC · JPL |
| (530664) 2011 SO277 | 118 | NT | 30.30 | 0.0 | 9.64 | 30.0 | 30.5 | — | MPC · JPL |
| (606187) 2017 QO33 | 11 | damocloid | 34.67 | 0.8 | 148.84 | 4.9 | 64.4 | — | MPC · JPL |
| 1996 PW | 10 | damocloid | 269.67 | 0.9 | 30.09 | 2.4 | 536.8 | — | MPC · JPL |
| 2000 AB229 | 10 | damocloid | 52.24 | 0.9 | 68.28 | 2.2 | 102.1 | — | MPC · JPL |
| 2000 KP65 | 48 | damocloid | 89.44 | 0.9 | 45.54 | 3.3 | 175.5 | — | MPC · JPL |
| (612243) 2001 QR322 | 132 | NT | 30.36 | 0.0 | 1.32 | 29.4 | 31.3 | albedo: 0.058 | MPC · JPL |
| 2002 AR91 | 4 | damocloid | 75.18 | 0.9 | 17.58 | 2.6 | 147.7 | — | MPC · JPL |
| 2002 CP154 | 209 | other TNO | 51.80 | 0.1 | 1.47 | 41.9 | 61.7 | — | MPC · JPL |
| 2002 RN109 | 5 | damocloid | 598.67 | 0.9 | 58.49 | 2.6 | 1194.6 | — | MPC · JPL |
| 2003 UY283 | 5 | centaur | 33.45 | 0.8 | 18.90 | 3.5 | 63.4 | — | MPC · JPL |
| 2004 CM111 | 8 | centaur | 33.18 | 0.8 | 4.66 | 4.9 | 61.4 | — | MPC · JPL |
| 2004 NN8 | 5 | damocloid | 100.79 | 0.9 | 165.58 | 2.3 | 199.2 | — | MPC · JPL |
| 2005 OE | 11 | damocloid | 63.27 | 0.9 | 67.50 | 3.0 | 123.4 | — | MPC · JPL |
| 2005 TN53 | 66 | NT | 30.22 | 0.0 | 24.95 | 28.2 | 32.2 | — | MPC · JPL |
| 2005 VX3 | 9 | damocloid | 769.73 | 0.9 | 112.44 | 4.1 | 1535.3 | — | MPC · JPL |
| 2006 EX52 | 7 | damocloid | 42.06 | 0.9 | 150.26 | 2.5 | 81.5 | — | MPC · JPL |
| 2006 LM1 | 7 | damocloid | 37.18 | 0.9 | 172.14 | 3.7 | 70.6 | — | MPC · JPL |
| (613490) 2006 RJ103 | 127 | NT | 30.13 | 0.0 | 8.17 | 29.3 | 30.9 | BR-mag: 1.31 | MPC · JPL |
| 2007 DA61 | 6 | damocloid | 433.78 | 0.9 | 76.49 | 2.6 | 864.9 | — | MPC · JPL |
| 2008 BN18 | 11 | damocloid | 35.00 | 0.9 | 28.73 | 2.6 | 67.3 | — | MPC · JPL |
| 2009 DD47 | 4 | damocloid | 47.58 | 0.9 | 107.45 | 2.2 | 92.9 | — | MPC · JPL |
| 2009 WX199 | 1.1 | damocloid | 31.35 | 0.9 | 8.74 | 1.4 | 61.3 | — | MPC · JPL |
| 2010 CG55 | 10 | damocloid | 31.65 | 0.9 | 146.12 | 2.8 | 60.4 | albedo: 0.048 | MPC · JPL |
| 2010 DC39 | 2.3 | damocloid | 108.39 | 0.9 | 10.54 | 1.8 | 214.9 | — | MPC · JPL |
| 2010 EX175 | 1 | damocloid | 49.29 | 0.9 | 29.25 | 2.6 | 95.9 | — | MPC · JPL |
| 2010 GW147 | 16 | centaur | 176.57 | 0.9 | 99.89 | 5.3 | 347.7 | albedo: 0.037 | MPC · JPL |
| 2010 GW64 | 6 | damocloid | 62.30 | 0.9 | 105.23 | 3.6 | 120.9 | albedo: 0.047 | MPC · JPL |
| 2010 JB184 | 1 | unusual | 44.68 | 0.9 | 18.69 | 3.0 | 86.3 | — | MPC · JPL |
| 2010 JH124 | 7 | damocloid | 70.04 | 0.9 | 53.36 | 2.6 | 137.4 | albedo: 0.052 | MPC · JPL |
| 2010 LN135 | 9 | damocloid | 2901.80 | 0.9 | 64.70 | 1.7 | 5801.8 | — | MPC · JPL |
| 2010 TT191 | 115 | NT | 30.11 | 0.0 | 4.28 | 28.0 | 32.2 | — | MPC · JPL |
| 2011 HM102 | 87 | NT | 30.30 | 0.0 | 29.34 | 27.7 | 32.8 | BR-mag: 1.13 | MPC · JPL |
| 2011 OR17 | 15 | damocloid | 292.27 | 0.9 | 110.38 | 3.1 | 581.4 | — | MPC · JPL |
| 2011 WS41 | 1.9 | damocloid | 37.50 | 0.9 | 141.66 | 2.0 | 72.9 | — | MPC · JPL |
| 2012 DT42 | 1.7 | damocloid | 45.11 | 0.9 | 1.17 | 1.4 | 88.8 | — | MPC · JPL |
| 2012 HD2 | 5 | damocloid | 62.52 | 0.9 | 146.71 | 2.5 | 122.5 | — | MPC · JPL |
| 2012 KA51 | 19 | damocloid | 501.79 | 0.9 | 70.90 | 4.8 | 998.7 | — | MPC · JPL |
| 2012 UD185 | 126 | NT | 30.27 | 0.0 | 28.30 | 29.0 | 31.5 | — | MPC · JPL |
| 2012 UV177 | 58 | NT | 30.12 | 0.0 | 20.85 | 27.9 | 32.3 | — | MPC · JPL |
| 2013 BN27 | 2.4 | damocloid | 59.07 | 0.9 | 101.80 | 1.5 | 116.5 | — | MPC · JPL |
| 2013 DG4 | 2.6 | damocloid | 136.08 | 0.9 | 5.29 | 1.3 | 270.8 | — | MPC · JPL |
| 2013 HS150 | 2.6 | damocloid | 62.51 | 0.9 | 97.11 | 2.8 | 122.2 | — | MPC · JPL |
| 2013 KY18 | 182 | NT | 30.26 | 0.1 | 6.66 | 26.5 | 34.0 | — | MPC · JPL |
| 2013 LD16 | 4 | damocloid | 81.20 | 0.9 | 154.64 | 2.5 | 159.8 | BR-mag: 1.30 | MPC · JPL |
| 2013 RC158 | 70 | NT | 30.19 | 0.0 | 7.45 | 28.6 | 31.7 | — | MPC · JPL |
| 2013 RL124 | 72 | NT | 30.21 | 0.0 | 10.12 | 29.3 | 31.0 | — | MPC · JPL |
| 2013 SM99 | 1.9 | unusual | 34.10 | 0.9 | 14.29 | 3.0 | 65.1 | — | MPC · JPL |
| 2013 TK227 | 50 | NT | 30.23 | 0.0 | 18.61 | 27.7 | 32.6 | — | MPC · JPL |
| 2013 TZ187 | 96 | NT | 30.24 | 0.0 | 13.14 | 28.2 | 32.2 | — | MPC · JPL |
| 2013 VX30 | 91 | NT | 30.17 | 0.0 | 31.21 | 27.5 | 32.7 | — | MPC · JPL |
| 2014 CW14 | 9 | damocloid | 32.79 | 0.8 | 170.75 | 4.3 | 61.2 | BR-mag: 1.38 | MPC · JPL |
| 2014 MH55 | 12 | damocloid | 44.84 | 0.9 | 92.34 | 4.5 | 85.1 | — | MPC · JPL |
| 2014 QO441 | 90 | NT | 30.21 | 0.1 | 18.84 | 27.1 | 33.2 | — | MPC · JPL |
| 2014 QP441 | 57 | NT | 30.19 | 0.0 | 19.41 | 28.1 | 32.2 | — | MPC · JPL |
| 2014 RO74 | 88 | NT | 30.14 | 0.0 | 29.51 | 28.6 | 31.6 | — | MPC · JPL |
| 2014 SC374 | 96 | NT | 30.16 | 0.0 | 33.67 | 27.2 | 33.0 | — | MPC · JPL |
| 2014 UU240 | 96 | NT | 30.17 | 0.0 | 35.75 | 28.8 | 31.5 | — | MPC · JPL |
| 2014 XS3 | 6 | damocloid | 72.01 | 0.9 | 101.53 | 3.2 | 140.7 | — | MPC · JPL |
| 2014 YB92 | 79 | NT | 30.27 | 0.0 | 30.82 | 27.3 | 33.2 | — | MPC · JPL |
| 2015 FK37 | 8 | damocloid | 456.25 | 0.9 | 156.12 | 4.9 | 907.5 | — | MPC · JPL |
| 2015 RK245 | 8 | damocloid | 81.07 | 0.9 | 91.78 | 2.7 | 159.3 | — | MPC · JPL |
| 2015 RL277 | 3 | centaur | 35.02 | 0.8 | 3.11 | 5.2 | 64.8 | — | MPC · JPL |
| 2015 RW277 | 38 | NT | 30.16 | 0.0 | 30.75 | 27.9 | 32.3 | — | MPC · JPL |
| 2015 TN178 | 5 | damocloid | 54.15 | 0.9 | 91.21 | 2.3 | 105.9 | — | MPC · JPL |
| 2015 TS350 | 13 | centaur | 144.82 | 0.9 | 57.95 | 5.0 | 284.5 | — | MPC · JPL |
| 2015 VU207 | 146 | NT | 30.19 | 0.0 | 38.93 | 29.2 | 31.1 | — | MPC · JPL |
| 2015 VV165 | 72 | NT | 30.17 | 0.0 | 16.84 | 27.5 | 32.7 | — | MPC · JPL |
| 2015 VW165 | 87 | NT | 30.16 | 0.0 | 5.00 | 28.6 | 31.6 | — | MPC · JPL |
| 2015 VX165 | 61 | NT | 30.11 | 0.0 | 17.12 | 27.9 | 32.3 | — | MPC · JPL |
| 2015 XR384 | 4 | damocloid | 36.26 | 0.9 | 157.48 | 3.5 | 68.9 | — | MPC · JPL |
| 2016 AT281 | 6 | damocloid | 62.74 | 0.9 | 22.17 | 2.6 | 122.7 | — | MPC · JPL |
| 2016 CO264 | 3 | damocloid | 47.35 | 0.9 | 129.74 | 3.0 | 91.7 | — | MPC · JPL |
| 2016 EJ203 | 1.5 | damocloid | 66.08 | 0.9 | 170.96 | 2.7 | 129.4 | — | MPC · JPL |
| 2016 GM83 | 1.3 | damocloid | 138.08 | 0.9 | 3.46 | 1.5 | 274.6 | — | MPC · JPL |
| 2016 PN66 | 13 | damocloid | 31.04 | 0.9 | 105.22 | 2.9 | 59.1 | — | MPC · JPL |
| 2016 UN232 | 4 | unusual | 30.39 | 0.8 | 11.17 | 4.1 | 56.6 | — | MPC · JPL |
| 2016 US109 | 2.3 | damocloid | 35.62 | 0.9 | 87.27 | 1.8 | 69.4 | — | MPC · JPL |
| 2017 CW32 | 5 | damocloid | 182.37 | 0.9 | 152.43 | 2.9 | 361.8 | — | MPC · JPL |
| 2017 EM4 | 4 | damocloid | 33.09 | 0.9 | 83.42 | 2.6 | 63.5 | — | MPC · JPL |
| 2017 GD8 | 1.9 | damocloid | 43.28 | 0.9 | 74.86 | 2.2 | 84.2 | — | MPC · JPL |
| 2017 JB6 | 6 | damocloid | 32.90 | 0.8 | 160.74 | 3.8 | 61.9 | — | MPC · JPL |
| 2017 MB7 | 9 | damocloid | 3549.25 | 0.9 | 55.71 | 4.4 | 7094.0 | — | MPC · JPL |
| 2017 MZ4 | 13 | damocloid | 67.56 | 0.9 | 65.82 | 3.1 | 131.9 | — | MPC · JPL |
| 2017 OX68 | 1.7 | damocloid | 58.83 | 0.9 | 94.75 | 1.7 | 115.9 | — | MPC · JPL |
| 2017 SN33 | 1.6 | damocloid | 249.22 | 0.9 | 152.06 | 1.8 | 496.5 | — | MPC · JPL |
| 2017 SZ118 | 1.1 | damocloid | 34.05 | 0.9 | 2.46 | 1.5 | 66.5 | — | MPC · JPL |
| 2017 UR52 | 0.3 | Amor | 292.68 | 0.9 | 108.28 | 1.2 | 584.1 | — | MPC · JPL |
| 2017 UW51 | 5 | damocloid | 125.35 | 0.9 | 144.20 | 3.1 | 247.5 | — | MPC · JPL |
| 2017 UX51 | 35 | centaur | 30.10 | 0.7 | 90.46 | 7.6 | 52.5 | — | MPC · JPL |
| 2017 YL4 | 7 | damocloid | 147.73 | 0.9 | 88.98 | 4.2 | 291.1 | — | MPC · JPL |
| 2018 DE4 | 2.2 | damocloid | 31.83 | 0.9 | 81.34 | 2.3 | 61.2 | — | MPC · JPL |
| 2018 DF4 | 3 | damocloid | 95.00 | 0.9 | 68.21 | 1.6 | 188.4 | — | MPC · JPL |
| 2018 KH3 | 11 | damocloid | 93.45 | 0.9 | 46.86 | 3.7 | 183.2 | — | MPC · JPL |
| 2018 MP8 | 5 | damocloid | 377.26 | 0.9 | 68.30 | 3.8 | 750.6 | — | MPC · JPL |
| 2018 SQ13 | 5 | damocloid | 154.17 | 0.9 | 90.97 | 2.9 | 305.3 | — | MPC · JPL |
| 2019 EJ3 | 0.18 | Amor | 102.92 | 0.9 | 139.75 | 1.0 | 204.7 | — | MPC · JPL |
| 2019 YJ6 | 2.5 | damocloid | 37.22 | 0.9 | 22.00 | 2.5 | 71.8 | — | MPC · JPL |
| 2020 KU7 | 6 | damocloid | 34.86 | 0.8 | 103.84 | 4.1 | 65.5 | — | MPC · JPL |
| 2020 ML1 | 1.8 | damocloid | 54.98 | 0.9 | 82.46 | 2.5 | 107.4 | — | MPC · JPL |
| 2020 QN6 | 7 | damocloid | 648.83 | 0.9 | 76.83 | 4.8 | 1292.8 | — | MPC · JPL |
| 2021 DL1 | 9 | damocloid | 35.37 | 0.8 | 148.55 | 3.9 | 66.8 | — | MPC · JPL |
| 2021 GQ57 | 3 | damocloid | 86.77 | 0.9 | 125.10 | 3.4 | 170.1 | — | MPC · JPL |
| 2021 PN72 | 25 | damocloid | 318.11 | 0.9 | 84.90 | 4.5 | 631.6 | — | MPC · JPL |
| 2021 QM45 | 6 | damocloid | 368.62 | 0.9 | 22.82 | 2.7 | 734.4 | — | MPC · JPL |
| 2021 RM114 | 2.7 | damocloid | 114.60 | 0.9 | 103.17 | 4.0 | 225.1 | — | MPC · JPL |
| 2021 UL19 | 1.0 | damocloid | 37.71 | 0.9 | 154.92 | 1.8 | 73.5 | — | MPC · JPL |
| 2021 XS6 | 3 | damocloid | 39.02 | 0.8 | 96.91 | 3.9 | 74.1 | — | MPC · JPL |
See also
Notes
- According to Johnston's Archive,[lower-alpha 2] there are 50+ objects with a semi-major axis larger than 30.1 AU that are excluded from the two MPC sources. These ignored objects are the damocloids and the Neptune trojans, as well as three unusual objects 2003 UY283 (MPC/JPL), 2004 CM111 (MPC/JPL) and 2015 RL277 (MPC/JPL).
References
- "List of Known Trans-Neptunian Objects". Johnston's Archive. 2 January 2022. Retrieved 16 April 2022.
- "List Of Transneptunian Objects". Minor Planet Center. 16 April 2022.
- "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. 16 April 2022.
External links
- How many dwarf planets are there in the outer solar system?, Michael Brown, Caltech
- OSSOS TNODB by the Outer Solar System Origins Survey
- Known extreme outer solar system objects, Scott Sheppard, Carnegie Science Center
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