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 October 2020, there are 2,786 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 plot — semi-major axis (a) against:[1] inclination (top) and eccentricity (bottom) plots: core region (left) and full region (right)   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

The list also contains information from the "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

100

200

300

400

500

600

700

800

'92

'94

'96

'98

'00

'02

'04

'06

'08

'10

'12

'14

'16

'18

'20

TNOs by year of principle designation since 1992 (objects with a < 30.1 AU excluded). As of October 2020, there are    2,786 unnumbered TNOs and    678 numbered TNOs (Pluto from 1930 is not shown)[2][3]

•   Numbered TNOs: 678 obj. (19.6%)
•   Unnumbered TNOs: 2,786 obj. (80.4%)

Split-up of numbered and unnumbered trans-Neptunian objects[2][3]

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	D. C. Jewitt J. X. Luu (568)	70	plutino?	39.3	0.11	3	34.9	43.8	—	MPC · JPL

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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)	134	cubewano (cold)	46.0	0.12	1	40.5	51.5	BR-mag: 1.65	MPC · JPL
1994 EV3	13 March 1994	D. C. Jewitt J. X. Luu (568)	168	cubewano (cold)	43.2	0.04	2	41.7	44.7	BR-mag: 1.73; taxonomy: RR	MPC · JPL
1994 TG	3 October 1994	J. Chen D. C. Jewitt G. Knopp (568)	176	cubewano (hot)	42.3	0.00	7	42.3	42.3	—	MPC · JPL
1994 TG2	8 October 1994	O. R. Hainaut (809)	176	cubewano (cold)	42.4	0.00	2	42.4	42.4	—	MPC · JPL
1994 TH	3 October 1994	J. Chen D. C. Jewitt G. Knopp (568)	176	other TNO	40.9	0.00	16	40.9	40.9	—	MPC · JPL

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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)	134	cubewano (cold)	46.3	0.13	4	40.2	52.4	—	MPC · JPL
1995 DC2	24 February 1995	J. X. Luu D. C. Jewitt (568)	161	cubewano (cold)	44.2	0.07	2	41.3	47.1	—	MPC · JPL
1995 FB21	29 March 1995	S. F. Green N. McBride (413)	140	cubewano (cold)	42.4	0.00	1	42.4	42.4	—	MPC · JPL
1995 GA7	3 April 1995	J. Chen D. C. Jewitt (568)	140	plutino?	39.5	0.12	4	34.8	44.2	—	MPC · JPL
1995 GJ	3 April 1995	D. C. Jewitt J. Chen (568)	176	cubewano (hot)	42.9	0.09	23	39.0	46.8	—	MPC · JPL
1995 GY7	6 April 1995	C.-I. Lagerkvist (809)	140	cubewano (cold)	41.3	0.00	1	41.3	41.3	—	MPC · JPL
1995 HM5	26 April 1995	J. X. Luu (807)	128	plutino	39.8	0.26	5	29.6	50.1	BR-mag: 1.22; taxonomy: BR	MPC · JPL
1995 KJ1	30 May 1995	J. Chen (568)	222	cubewano (cold)	43.5	0.00	3	43.5	43.5	—	MPC · JPL
1995 KK1	30 May 1995	D. C. Jewitt (568)	88	plutino?	39.5	0.19	9	32.0	47.0	—	MPC · JPL
1995 YY3	24 December 1995	J. Chen D. C. Jewitt (568)	88	plutino?	39.1	0.21	0	30.7	47.5	—	MPC · JPL

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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	A. Gleason (691)	61	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)	154	cubewano (hot)	45.6	0.12	8	40.2	51.0	—	MPC · JPL
1996 KX1	22 May 1996	J. Chen C. Trujillo D. C. Jewitt J. X. Luu (568)	88	plutino?	39.5	0.10	2	35.7	43.4	—	MPC · JPL
1996 KY1	16 May 1996	J. X. Luu C. Trujillo D. C. Jewitt (568)	111	plutino?	39.5	0.10	31	35.7	43.3	—	MPC · JPL
1996 RQ20	6 September 1996	D. L. Rabinowitz (675)	185	cubewano (hot)	43.7	0.10	32	39.4	48.0	BR-mag: 1.56; taxonomy: IR	MPC · JPL
1996 RR20	15 September 1996	A. Fitzsimmons M. J. Irwin I. P. Williams (950)	193	plutino	39.7	0.17	5	32.9	46.5	BR-mag: 1.87; taxonomy: RR	MPC · JPL
1996 TK66	9 October 1996	B. Schmidt and the High-Z team (807)	243	cubewano (cold)	42.6	0.01	3	42.0	43.3	BR-mag: 1.62; taxonomy: RR	MPC · JPL
1996 TS66	12 October 1996	D. C. Jewitt J. X. Luu C. Trujillo (568)	194	cubewano (hot)	43.6	0.12	7	38.3	49.0	albedo: 0.120; BR-mag: 1.78; taxonomy: RR	MPC · JPL

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1997

Designation	First Observed (discovered)		D (km)	Orbital description						Remarks	Refs
	Date	Observer (Site)		Class	a (AU)	e	i (°)	q (AU)	Q (AU)
1997 CT29	2 February 1997	D. C. Jewitt J. X. Luu J. Chen C. Trujillo (568)	222	cubewano (cold)	43.6	0.04	1	42.1	45.1	—	MPC · JPL
1997 CW29	8 February 1997	J. X. Luu D. C. Jewitt C. Trujillo J. Chen (568)	222	plutino?	39.4	0.08	19	36.3	42.5	—	MPC · JPL
1997 GA45	3 April 1997	B. Gladman (568)	84	cubewano (hot)	47.4	0.17	8	39.1	55.7	—	MPC · JPL
1997 QH4	27 August 1997	D. C. Jewitt C. Trujillo J. X. Luu K. Berney (568)	176	cubewano (hot)	42.6	0.08	13	39.2	46.0	BR-mag: 1.68; taxonomy: RR	MPC · JPL
1997 RL13	5 September 1997	B. Gladman P. Nicholson J. A. Burns (675)	56	cubewano (hot)	44.5	0.00	6	44.5	44.5	—	MPC · JPL
1997 RX9	7 September 1997	B. Gladman (675)	97	cubewano (hot)	41.6	0.06	30	39.2	43.9	—	MPC · JPL
1997 RY6	6 September 1997	S. F. Green N. McBride (950)	140	cubewano (hot)	41.4	0.00	12	41.4	41.4	—	MPC · JPL
1997 SZ10	24 September 1997	D. C. Jewitt (568)	88	twotino	47.7	0.36	12	30.4	64.9	BR-mag: 1.79; taxonomy: RR	MPC · JPL
1997 TX8	5 October 1997	E. F. Helin D. L. Rabinowitz M. Hicks (675)	88	plutino?	39.3	0.19	9	32.0	46.6	—	MPC · JPL
1997 UG25	26 October 1997	E. Fletcher M. Irwin A. Fitzsimmons (950)	88	cubewano (cold)	43.3	0.00	1	43.3	43.3	—	MPC · JPL

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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)	202	cubewano (hot)	41.9	0.02	10	41.2	42.6	BR-mag: 1.53; taxonomy: IR	MPC · JPL
1998 HH151	28 April 1998	D. C. Jewitt J. X. Luu C. Trujillo D. J. Tholen (568)	93	plutino	39.7	0.20	9	31.9	47.4	—	MPC · JPL
1998 HL151	29 April 1998	D. C. Jewitt J. X. Luu C. Trujillo D. J. Tholen (568)	106	other TNO	41.0	0.09	28	37.3	44.7	BR-mag: 1.06	MPC · JPL
1998 HN151	21 April 1998	J. Kormendy R. Wainscoat D. J. Tholen D. C. Jewitt (568)	97	other TNO	38.0	0.05	25	36.0	40.1	—	MPC · JPL
1998 HO151	22 April 1998	R. Wainscoat J. Kormendy D. C. Jewitt J. X. Luu (568)	101	cubewano (hot)	41.5	0.09	17	37.6	45.3	—	MPC · JPL
1998 HR151	28 April 1998	J. X. Luu C. Trujillo D. J. Tholen D. C. Jewitt (568)	84	cubewano (hot)	45.5	0.12	7	39.9	51.1	—	MPC · JPL
1998 KD66	29 May 1998	R. L. Allen M. Jarvis G. Bernstein (807)	74	cubewano (hot)	43.1	0.05	5	40.9	45.3	—	MPC · JPL
1998 KE66	29 May 1998	R. L. Allen M. Jarvis G. Bernstein (807)	70	cubewano (cold)	42.1	0.00	3	42.1	42.1	—	MPC · JPL
1998 KF66	29 May 1998	R. L. Allen M. Jarvis G. Bernstein (807)	49	plutino?	39.5	0.21	6	31.1	47.9	—	MPC · JPL
1998 KG66	29 May 1998	R. L. Allen M. Jarvis G. Bernstein (807)	74	cubewano (cold)	45.2	0.00	4	45.2	45.2	—	MPC · JPL
1998 KS65	29 May 1998	G. Bernstein (807)	128	cubewano (cold)	43.8	0.04	1	42.2	45.4	BR-mag: 1.73; taxonomy: RR-IR	MPC · JPL
1998 KY61	29 May 1998	G. Bernstein (807)	154	cubewano (cold)	44.7	0.04	2	42.9	46.4	—	MPC · JPL
1998 UR43	22 October 1998	M. W. Buie (695)	97	plutino	39.2	0.22	9	30.8	47.7	BR-mag: 1.27; taxonomy: BR	MPC · JPL
1998 WG24	18 November 1998	M. W. Buie (695)	176	cubewano (cold)	45.3	0.12	2	39.8	50.9	—	MPC · JPL
1998 WS31	18 November 1998	M. W. Buie (695)	97	plutino	39.1	0.20	7	31.4	46.8	BR-mag: 1.32; taxonomy: IR-BR	MPC · JPL
1998 WV24	18 November 1998	M. W. Buie (695)	110	other TNO	38.8	0.04	2	37.2	40.3	BR-mag: 1.27; taxonomy: BR; binary: 96 km	MPC · JPL
1998 WV31	19 November 1998	M. W. Buie (695)	140	plutino	39.1	0.27	6	28.4	49.7	BR-mag: 1.31; taxonomy: BR	MPC · JPL
1998 WW31	18 November 1998	M. W. Buie (695)	148	cubewano (hot)	44.5	0.09	7	40.4	48.5	albedo: 0.054; binary: 123 km	MPC · JPL
1998 WX24	18 November 1998	M. W. Buie (695)	202	cubewano (cold)	43.1	0.05	1	41.1	45.1	BR-mag: 1.79; taxonomy: RR	MPC · JPL
1998 WX31	18 November 1998	M. W. Buie (695)	193	cubewano (cold)	45.2	0.10	3	40.6	49.8	—	MPC · JPL
1998 WY24	18 November 1998	M. W. Buie (695)	161	cubewano (cold)	43.0	0.04	2	41.4	44.5	—	MPC · JPL
1998 WY31	18 November 1998	M. W. Buie (695)	185	cubewano (cold)	45.0	0.12	2	39.7	50.2	—	MPC · JPL
1998 WZ24	18 November 1998	M. W. Buie (695)	106	plutino?	39.5	0.18	5	32.4	46.6	—	MPC · JPL
1998 WZ31	19 November 1998	M. W. Buie (695)	106	plutino	39.3	0.16	15	32.8	45.7	BR-mag: 1.26; taxonomy: BB-BR	MPC · JPL

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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

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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	P. A. Wiegert (568)	122	cubewano (cold)	44.1	0.16	1	36.9	51.3	—	MPC · JPL
2008 AQ118	6 January 2008	P. A. Wiegert (568)	280	cubewano (hot)	41.3	0.06	25	38.9	43.7	—	MPC · JPL
2008 AU138	8 January 2008	Mauna Kea Obs. (568)	202	centaur	32.3	0.38	43	20.1	44.5	—	MPC · JPL
2008 JO41	11 May 2008	Mauna Kea Obs. (568)	93	SDO	89.1	0.55	49	39.9	138	—	MPC · JPL
2008 LD18	7 June 2008	S. S. Sheppard C. Trujillo (568)	97	other TNO	40.2	0.30	15	28.0	52.5	—	MPC · JPL
2008 UA332	26 October 2008	L. H. Wasserman (807)	280	res · 1:4	76.0	0.52	31	36.8	115	—	MPC · JPL
2008 UB332	26 October 2008	L. H. Wasserman (807)	185	plutino?	39.5	0.24	33	29.9	49.1	—	MPC · JPL

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2009–2016

• 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

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2017

Designation	First Observed (discovered)		D (km)	Orbital description						Remarks	Refs
	Date	Observer (Site)		Class	a (AU)	e	i (°)	q (AU)	Q (AU)
2017 DM121	24 February 2017	Mauna Kea Obs. (568)	140	cubewano (hot)	44.1	0.06	10	41.4	46.9	—	MPC · JPL
2017 DN121	24 February 2017	Mauna Kea Obs. (568)	147	twotino	47.5	0.22	15	36.9	58.1	—	MPC · JPL
2017 DO121	24 February 2017	Mauna Kea Obs. (568)	134	centaur?	183	0.85	16	26.6	340	—	MPC · JPL
2017 DP121	24 February 2017	Mauna Kea Obs. (568)	154	SDO	62.1	0.46	14	33.6	90.5	—	MPC · JPL
2017 FD163	25 March 2017	S. S. Sheppard (807)	185	twotino	47.4	0.37	13	29.9	64.9	—	MPC · JPL
2017 FE173	23 March 2017	Cerro Tololo Obs. (807)	176	SDO	106	0.60	31	42.1	169	—	MPC · JPL
2017 FO161	23 March 2017	Cerro Tololo Obs. (807)	612	SDO	59.8	0.43	54	34.1	85.4	—	MPC · JPL
2017 FP161	23 March 2017	Cerro Tololo Obs. (807)	168	other TNO	48.1	0.16	15	40.5	55.8	—	MPC · JPL
2017 FQ161	26 March 2017	Cerro Tololo Obs. (807)	255	twotino	47.8	0.27	8	35.0	60.6	—	MPC · JPL
2017 OF69	26 July 2017	S. S. Sheppard (568)	558	plutino	39.7	0.21	14	31.5	48.0	—	MPC · JPL
2017 OG69	26 July 2017	S. S. Sheppard (568)	352	other TNO	40.1	0.07	25	37.1	43.1	—	MPC · JPL
2017 OK69	26 July 2017	S. S. Sheppard (568)	306	SDO	50.6	0.28	24	36.3	65.0	—	MPC · JPL
2017 RG16	12 September 2017	Pan-STARRS (F51)	25	centaur	77.8	0.91	75	7.1	149	—	MPC · JPL
2017 SN132	16 September 2017	S. S. Sheppard (568)	306	SDO	96.7	0.61	24	38.1	155	—	MPC · JPL
2017 VO34	15 November 2017	S. S. Sheppard (807)	154	SDO	52.1	0.33	41	35.1	69.2	—	MPC · JPL
2017 WH30	17 November 2017	S. S. Sheppard (807)	202	SDO	83.2	0.60	18	33.2	133	—	MPC · JPL
2017 YG5	23 December 2017	Pan-STARRS (F51)	15	centaur	66.6	0.89	24	7.4	126	—	MPC · JPL
2017 YK3	23 December 2017	Pan-STARRS (F51)	185	plutino	39.2	0.28	2	28.3	50.1	—	MPC · JPL

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2018

Designation	First Observed (discovered)		D (km)	Orbital description						Remarks	Refs
	Date	Observer (Site)		Class	a (AU)	e	i (°)	q (AU)	Q (AU)
2018 AX18	15 January 2018	S. S. Sheppard (568)	212	SDO	52.0	0.29	21	36.9	67.1	—	MPC · JPL
2018 AY18	15 January 2018	S. S. Sheppard (568)	147	SDO	64.5	0.38	15	39.8	89.2	—	MPC · JPL
2018 AZ18	15 January 2018	S. S. Sheppard (568)	128	SDO	54.6	0.28	16	39.5	69.8	—	MPC · JPL
2018 GT12	12 April 2018	S. S. Sheppard (807)	134	SDO	98.0	0.66	16	33.5	162	—	MPC · JPL
2018 GT15	12 April 2018	Cerro Tololo Obs. (807)	140	other TNO	57.6	0.10	26	51.5	63.6	—	MPC · JPL
2018 JT6	10 May 2018	S. S. Sheppard (807)	193	SDO	53.3	0.20	27	42.7	63.8	—	MPC · JPL
2018 JU6	11 May 2018	S. S. Sheppard (807)	185	SDO	51.8	0.26	6	38.6	65.0	—	MPC · JPL
2018 MF13	16 June 2018	CTIO-DECam (W84)	81	res · 5:8	41.5	0.24	3	31.3	51.6	—	MPC · JPL
2018 MG13	16 June 2018	CTIO-DECam (W84)	111	SDO	51.1	0.25	10	38.5	63.7	—	MPC · JPL
2018 VG18	10 November 2018	Mauna Kea Obs. (568)	884	SDO	81.4	0.54	24	37.8	125	—	MPC · JPL
2018 VM35	6 November 2018	S. S. Sheppard (568)	128	EDDO	252	0.82	9	45.0	460	ETNO	MPC · JPL
2018 VN35	10 November 2018	S. S. Sheppard (568)	140	other TNO	45.8	0.29	30	32.7	59.0	—	MPC · JPL
2018 VO35	10 November 2018	S. S. Sheppard (568)	212	SDO	128	0.74	19	33.4	222	—	MPC · JPL

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2019

Designation	First Observed (discovered)		D (km)	Orbital description						Remarks	Refs
	Date	Observer (Site)		Class	a (AU)	e	i (°)	q (AU)	Q (AU)
2019 CY4	8 February 2019	Pan-STARRS (F51)	28	centaur	47.1	0.79	20	10.1	84.1	—	MPC · JPL
2019 GJ23	5 April 2019	Korea Microlensing Telescope Network-CTIO (W93)	193	cubewano (cold)	43.9	0.08	1	40.6	47.2	—	MPC · JPL
2019 QQ8	28 August 2019	Pan-STARRS (F51)	8	centaur	62.2	0.89	24	6.8	118	—	MPC · JPL
2019 RO4	4 September 2019	Lowell Discovery Telescope (G37)	185	cubewano (hot)	41.7	0.15	20	35.3	48.0	—	MPC · JPL
2019 TX7	7 October 2019	Pan-STARRS (F51)	8	centaur	32.8	0.80	5	6.6	59.0	—	MPC · JPL
2019 UH12	27 October 2019	Pan-STARRS 2 (F52)	34	centaur	52.6	0.85	47	7.9	97.3	—	MPC · JPL

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2020

Designation	First Observed (discovered)		D (km)	Orbital description						Remarks	Refs
	Date	Observer (Site)		Class	a (AU)	e	i (°)	q (AU)	Q (AU)
2020 BA22	31 January 2020	Korea Microlensing Telescope Network-CTIO (W93)	—	—	55.8	0.43	2	31.7	80.0	not in Johnston's Archive	MPC · JPL
2020 CM3	2 February 2020	Lowell Discovery Telescope (G37)	212	SDO	87.1	0.61	11	33.8	140	—	MPC · JPL
2020 DD5	29 February 2020	Kitt Peak-Bok (V00)	42	centaur	34.6	0.48	4	17.9	51.3	—	MPC · JPL
2020 DH6	28 February 2020	Korea Microlensing Telescope Network-CTIO (W93)	—	—	52.0	0.21	1	41.1	62.9	not in Johnston's Archive	MPC · JPL
2020 DJ6	28 February 2020	Korea Microlensing Telescope Network-CTIO (W93)	—	—	73.3	0.41	0	43.3	103	not in Johnston's Archive	MPC · JPL
2020 FP7	21 March 2020	Pan-STARRS (F51)	29	centaur?	52.5	0.87	50	7.0	98.1	—	MPC · JPL
2020 KO11	29 May 2020	New Horizons KBO Search-Subaru (266)	—	—	44.9	0.22	7	34.9	55.0	not in Johnston's Archive	MPC · JPL
2020 KP11	26 May 2020	New Horizons KBO Search-Subaru (266)	—	—	45.3	0.17	22	37.8	52.7	not in Johnston's Archive	MPC · JPL
2020 KQ11	29 May 2020	New Horizons KBO Search-Subaru (266)	—	—	44.5	0.10	3	40.2	48.9	not in Johnston's Archive	MPC · JPL
2020 KR11	30 May 2020	New Horizons KBO Search-Subaru (266)	—	—	46.3	0.09	6	42.2	50.4	not in Johnston's Archive	MPC · JPL
2020 KS11	29 May 2020	New Horizons KBO Search-Subaru (266)	—	—	118	0.71	3	34.7	201	not in Johnston's Archive	MPC · JPL
2020 KT11	26 May 2020	New Horizons KBO Search-Subaru (266)	—	—	43.2	0.20	27	34.5	52.0	not in Johnston's Archive	MPC · JPL
2020 KU11	26 May 2020	New Horizons KBO Search-Subaru (266)	—	—	58.0	0.48	15	30.3	85.7	not in Johnston's Archive	MPC · JPL
2020 KV11	29 May 2020	New Horizons KBO Search-Subaru (266)	—	—	154	0.78	5	33.6	274	ETNO not in Johnston's Archive	MPC · JPL
2020 KW11	29 May 2020	New Horizons KBO Search-Subaru (266)	—	—	46.5	0.17	5	38.7	54.3	not in Johnston's Archive	MPC · JPL
2020 KX11	29 May 2020	New Horizons KBO Search-Subaru (266)	—	—	66.0	0.02	14	64.7	67.3	not in Johnston's Archive	MPC · JPL
2020 KY11	30 May 2020	New Horizons KBO Search-Subaru (266)	—	—	51.1	0.02	8	49.9	52.2	not in Johnston's Archive	MPC · JPL
2020 QK3	18 August 2020	Purple Mountain Obs. XuYi Station (D29)	—	—	32.4	0.58	25	13.5	51.3	not in Johnston's Archive	MPC · JPL

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Ignored objects

The Minor Planet Center does not include the following 74 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	53.714	0.954	119.10	2.456	104.972	albedo: 0.098; BR-mag: 1.37	MPC · JPL
385571 Otrera	77	NT · L4	30.135	0.027	1.43	29.326	30.943	—	MPC · JPL
385695 Clete	97	NT · L4	30.113	0.050	5.25	28.594	31.631	—	MPC · JPL
(523794) 2015 RR245	770	res · 2:9	81.796	0.583	7.56	34.076	129.516	—	MPC · JPL
(530664) 2011 SO277	134	NT · L4	30.170	0.013	9.64	29.792	30.548	—	MPC · JPL
1996 PW	7	damocloid	258.364	0.990	30.05	2.485	514.242	—	MPC · JPL
2000 AB229	7	damocloid	52.660	0.956	68.27	2.315	103.005	—	MPC · JPL
2000 KP65	35	damocloid	90.187	0.963	45.63	3.332	177.042	—	MPC · JPL
2001 QR322	132	NT · L4	30.231	0.031	1.32	29.298	31.164	albedo: 0.058	MPC · JPL
2002 RN109	4	damocloid	556.381	0.995	58.31	2.681	110.080	—	MPC · JPL
2003 UY283	4	unusual	33.454	0.895	18.90	3.506	63.401	—	MPC · JPL
2004 CM111	6	centaur	33.180	0.851	4.66	4.942	61.417	—	MPC · JPL
2004 NN8	4	damocloid	99.474	0.976	165.55	2.362	196.586	—	MPC · JPL
2005 OE	8	damocloid	63.049	0.952	67.51	3.036	123.062	—	MPC · JPL
2005 VX3	7	damocloid	845.614	0.995	112.26	4.100	687.129	—	MPC · JPL
2006 EX52	5	damocloid	42.296	0.940	150.17	2.555	82.037	—	MPC · JPL
2006 LM1	5	damocloid	37.184	0.900	172.14	3.711	70.656	—	MPC · JPL
2006 TO130	134	res · 3:4	36.382	0.151	1.05	30.903	41.861	—	MPC · JPL
2007 DA61	4	damocloid	518.395	0.995	76.72	2.656	034.135	—	MPC · JPL
2007 TQ436	44	plutino?	39.752	0.253	8.94	29.692	49.812	—	MPC · JPL
2008 BN18	8	damocloid	35.137	0.925	28.71	2.635	67.639	—	MPC · JPL
2008 LC18	101	NT · L5	30.145	0.077	27.47	27.830	32.461	—	MPC · JPL
2009 DD47	3	damocloid	47.587	0.953	107.45	2.220	92.954	—	MPC · JPL
2010 CG55	10	damocloid	31.843	0.910	146.19	2.865	60.822	albedo: 0.048	MPC · JPL
2010 GW147	16	centaur	170.388	0.968	99.90	5.390	335.387	albedo: 0.037	MPC · JPL
2010 GW64	6	damocloid	62.981	0.941	105.21	3.709	122.253	albedo: 0.047	MPC · JPL
2010 JH124	7	damocloid	69.875	0.963	53.36	2.613	137.137	albedo: 0.052	MPC · JPL
2011 HM102	93	NT · L5	30.335	0.085	29.31	27.742	32.929	BR-mag: 1.13	MPC · JPL
2011 OR17	11	damocloid	278.558	0.989	110.50	3.118	553.999	—	MPC · JPL
2011 UU412	51	plutino?	39.309	0.167	23.20	32.753	45.864	—	MPC · JPL
2011 WS41	1.3	damocloid	38.310	0.946	141.64	2.082	74.538	—	MPC · JPL
2012 HD2	4	damocloid	62.993	0.959	146.83	2.555	123.431	—	MPC · JPL
2012 KA51	27	damocloid	224.399	0.978	70.66	4.910	443.888	—	MPC · JPL
2012 UD185	134	NT · L4	30.166	0.045	28.36	28.794	31.538	—	MPC · JPL
2013 BN27	1.7	damocloid	65.137	0.976	101.83	1.560	128.713	—	MPC · JPL
2013 HS150	1.8	damocloid	103.381	0.973	97.40	2.829	203.933	—	MPC · JPL
2013 KY18	193	NT · L5	30.354	0.123	6.65	26.624	34.084	—	MPC · JPL
2013 LD16	3	damocloid	81.530	0.969	154.70	2.549	160.512	BR-mag: 1.30	MPC · JPL
2013 TS187	93	res · 4:5	34.971	0.102	4.60	31.408	38.534	—	MPC · JPL
2013 TZ187	111	NT · L4	30.113	0.067	13.15	28.092	32.135	—	MPC · JPL
2014 CW14	6	damocloid	32.168	0.866	170.76	4.304	60.033	BR-mag: 1.38	MPC · JPL
2014 XS3	5	damocloid	72.531	0.955	101.41	3.254	141.808	—	MPC · JPL
2015 FK37	5	damocloid	104.449	0.953	155.84	4.916	203.983	—	MPC · JPL
2015 RK245	6	damocloid	80.211	0.966	91.67	2.758	157.665	—	MPC · JPL
2015 RL277	2	centaur	34.780	0.851	3.12	5.190	64.371	—	MPC · JPL
2015 TN178	4	damocloid	54.253	0.956	91.12	2.387	106.120	—	MPC · JPL
2015 TS350	10	centaur	142.757	0.965	58.04	5.047	280.467	—	MPC · JPL
2015 XR384	3	damocloid	36.679	0.903	157.50	3.567	69.790	—	MPC · JPL
2016 AT281	4	damocloid	63.373	0.958	22.19	2.683	124.062	—	MPC · JPL
2016 CO264	3	damocloid	48.088	0.937	129.78	3.012	93.163	—	MPC · JPL
2016 EJ203	1.1	damocloid	67.427	0.960	170.98	2.730	132.125	—	MPC · JPL
2016 PN66	9	damocloid	31.059	0.907	105.13	2.902	59.216	—	MPC · JPL
2016 US109	1.7	damocloid	35.863	0.948	87.18	1.856	69.870	—	MPC · JPL
2017 CW32	3	damocloid	191.911	0.985	152.43	2.954	380.868	—	MPC · JPL
2017 EM4	2	damocloid	33.289	0.921	83.42	2.646	63.931	—	MPC · JPL
2017 GD8	1.4	damocloid	43.297	0.947	74.90	2.284	84.309	—	MPC · JPL
2017 JB6	4	damocloid	32.906	0.884	160.74	3.815	61.997	—	MPC · JPL
2017 MB7	6	damocloid	3549.257	0.999	55.71	4.447	094.067	—	MPC · JPL
2017 MZ4	10	damocloid	66.794	0.952	65.83	3.186	130.401	—	MPC · JPL
2017 OX68	1.2	damocloid	58.963	0.971	94.76	1.734	116.193	—	MPC · JPL
2017 QO33	8	damocloid	34.394	0.857	148.82	4.935	63.854	—	MPC · JPL
2017 SN33	1.2	damocloid	260.702	0.993	152.03	1.843	519.561	—	MPC · JPL
2017 UR52	0.3	Amor	303.935	0.996	108.23	1.243	606.628	—	MPC · JPL
2017 UW51	4	damocloid	130.264	0.976	144.18	3.137	257.390	—	MPC · JPL
2018 DE4	1.6	damocloid	32.316	0.926	81.33	2.390	62.242	—	MPC · JPL
2018 DF4	3	damocloid	97.750	0.984	68.21	1.600	193.900	—	MPC · JPL
2018 KH3	8	damocloid	94.329	0.961	46.86	3.704	184.953	—	MPC · JPL
2018 MP8	4	damocloid	361.973	0.989	68.31	3.829	720.117	—	MPC · JPL
2018 SQ13	4	damocloid	155.419	0.981	90.97	2.970	307.869	—	MPC · JPL
2019 EJ3	0.13	Amor	86.271	0.988	139.76	1.077	171.466	—	MPC · JPL
2019 YJ6	1.8	damocloid	37.686	0.932	22.00	2.563	72.809	—	MPC · JPL
2020 KU7	4	damocloid	34.804	0.879	103.84	4.196	65.412	—	MPC · JPL
2020 ML1	1.3	damocloid	55.099	0.954	82.51	2.538	107.661	—	MPC · JPL

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See also

• List of unnumbered minor planets
• List of the brightest Kuiper belt objects
• List of Solar System objects by greatest aphelion
• List of Solar System objects most distant from the Sun

Notes

1. 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

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