List of unnumbered minor planets: 2000 U–Y

This is a partial list of unnumbered minor planets for principal provisional designations assigned between 16 October and 31 December 2000. As of March 2026^[update]}, a total of 118 bodies remain unnumbered for this period.^[1]^[2]^[3]^[4] Objects for this year are listed on the following pages: A–E · F–O · P–R · S–T and U–Y. Also see previous and next year.

Near-Earth obj.	MBA (inner)	MBA (outer)	Centaur
Mars-crosser	MBA (middle)	Jupiter trojan	Trans-Neptunian obj.
Unclassified

[1]

[2]

[3]

[4]

U	Designation	Class	Physical		Observations				Description and notes	Ref
U	Designation	Class	H	D	Opp.	Arc	Last	Used	Description and notes	Ref

1	2000 UK11	ATE	25.3	31 m	multiple	2000–2015	12 Sep 2015	66	Disc.: LINEAR	MPC · JPL
1	2000 UD14	MBA-I	19.4	390 m	multiple	2000–2019	22 Aug 2019	41	Disc.: Spacewatch Alt.: 2016 TL83	MPC · JPL
1	2000 UQ16	MCA	20.75	190 m	multiple	2000-2024	01 Oct 2024	50	Disc.: Spacewatch	MPC · JPL
7	2000 UR16	ATE	23.9	59 m	single	33 days	01 Dec 2000	63	Disc.: Ondřejov Obs.	MPC · JPL
E	2000 UH30	MCA	18.3	650 m	single	2 days	02 Nov 2000	15	Disc.: LINEAR	MPC · JPL
0	2000 UO30	APO	23.9	59 m	multiple	2000–2017	16 Nov 2017	83	Disc.: LINEAR	MPC · JPL
6	2000 UQ30	APO	22.1	140 m	single	52 days	22 Dec 2000	46	Disc.: LINEAR	MPC · JPL
0	2000 UV31	MBA-I	18.8	520 m	multiple	2000–2020	02 Feb 2020	43	Disc.: Spacewatch	MPC · JPL
3	2000 UY33	AMO	22.3	120 m	multiple	2000–2013	04 May 2013	52	Disc.: LINEAR	MPC · JPL
0	2000 UO115	MBA-I	19.0	470 m	multiple	2000–2019	04 Jul 2019	50	Disc.: Spacewatch	MPC · JPL
0	2000 UT115	MBA-M	18.70	760 m	multiple	2000–2021	07 Sep 2021	52	Disc.: Spacewatch	MPC · JPL
0	2000 UB116	MBA-I	18.9	490 m	multiple	2000–2019	01 Nov 2019	55	Disc.: Spacewatch	MPC · JPL
0	2000 UF116	MBA-M	18.5	840 m	multiple	2000–2019	25 Jan 2019	35	Disc.: Astrovirtel	MPC · JPL
0	2000 UJ116	MBA-I	19.38	400 m	multiple	2000–2021	31 Aug 2021	48	Disc.: Spacewatch	MPC · JPL

U	Designation	Class	Physical		Observations				Description and notes	Ref
U	Designation	Class	H	D	Opp.	Arc	Last	Used	Description and notes	Ref

0	2000 VP2	MBA-M	18.08	720 m	multiple	2000–2022	27 Jan 2022	42	Disc.: Ondřejov Obs. Alt.: 2014 ES35	MPC · JPL
0	2000 VU38	MBA-I	19.1	450 m	multiple	2000–2020	25 Jan 2020	33	Disc.: Spacewatch Added on 22 July 2020	MPC · JPL
–	2000 VZ44	APO	21.0	220 m	single	4 days	05 Nov 2000	12	Disc.: LINEAR	MPC · JPL
0	2000 VZ65	MBA-I	19.1	450 m	multiple	2000–2017	24 Oct 2017	36	Disc.: Spacewatch	MPC · JPL
2	2000 VB66	MBA-M	18.4	880 m	multiple	2000–2013	03 Dec 2013	20	Disc.: Spacewatch	MPC · JPL
1	2000 VJ66	MBA-I	18.68	620 m	multiple	2000–2023	07 Sep 2023	36	Disc.: Spacewatch	MPC · JPL
0	2000 VN66	MBA-I	18.65	550 m	multiple	2000–2021	09 May 2021	50	Disc.: Spacewatch	MPC · JPL

U	Designation	Class	Physical		Observations				Description and notes	Ref
U	Designation	Class	H	D	Opp.	Arc	Last	Used	Description and notes	Ref

2	2000 WC1	ATE	22.57	130 m	multiple	2000–2025	08 Feb 2025	62	Disc.: LINEAR	MPC · JPL
0	2000 WL1	MCA	19.20	610 m	multiple	2000–2021	09 Dec 2021	171	Disc.: Spacewatch	MPC · JPL
1	2000 WV2	MCA	17.6	900 m	multiple	2000–2018	14 Dec 2018	35	Disc.: LINEAR Added on 19 October 2020	MPC · JPL
2	2000 WW2	MCA	17.73	1 km	multiple	2000–2014	06 May 2014	63	Disc.: LINEAR Alt.: 2003 WV42	MPC · JPL
–	2000 WM6	MCA	19.7	340 m	single	11 days	29 Nov 2000	33	Disc.: LONEOS	MPC · JPL
7	2000 WG10	APO	23.4	74 m	single	5 days	23 Nov 2000	37	Disc.: LINEAR	MPC · JPL
–	2000 WH10	APO	22.5	110 m	single	4 days	23 Nov 2000	23	Disc.: LINEAR	MPC · JPL
5	2000 WM10	AMO	25.8	25 m	single	15 days	05 Dec 2000	22	Disc.: LINEAR	MPC · JPL
4	2000 WV12	TNO	6.89	160 km	multiple	2000–2024	09 Jan 2024	26	Disc.: La Silla Obs. LoUTNOs, cubewano (cold)	MPC · JPL
7	2000 WW12	TNO	7.6	114 km	multiple	2000–2001	12 Dec 2001	13	Disc.: La Silla Obs. LoUTNOs, SDO	MPC · JPL
E	2000 WX12	TNO	7.6	104 km	single	24 days	18 Dec 2000	9	Disc.: La Silla Obs. LoUTNOs, cubewano?	MPC · JPL
1	2000 WJ13	MBA-M	17.19	1.4 km	multiple	2000–2024	15 Jun 2024	47	Disc.: LINEAR Alt.: 2004 UW	MPC · JPL
0	2000 WR19	MCA	17.61	1.15 km	multiple	2000–2023	15 Feb 2023	290	Disc.: LINEAR	MPC · JPL
0	2000 WM20	MBA-M	18.82	720 m	multiple	2000–2021	13 Sep 2021	68	Disc.: Spacewatch Alt.: 2013 YS134	MPC · JPL
1	2000 WU27	MBA-M	18.5	840 m	multiple	2000–2023	15 Jan 2023	39	Disc.: Spacewatch	MPC · JPL
0	2000 WD28	MBA-O	17.2	2.0 km	multiple	2000–2019	06 Apr 2019	34	Disc.: Spacewatch Added on 5 November 2021	MPC · JPL
E	2000 WP28	MBA-M	18.7	540 m	single	4 days	27 Nov 2000	11	Disc.: LONEOS	MPC · JPL
9	2000 WS28	APO	23.4	74 m	single	3 days	23 Nov 2000	11	Disc.: LINEAR	MPC · JPL
6	2000 WT28	APO	24.5	45 m	single	65 days	24 Jan 2001	12	Disc.: LINEAR AMO at MPC	MPC · JPL
1	2000 WX28	AMO	21.32	230 m	multiple	2000-2024	01 Sep 2024	49	Disc.: AMOS	MPC · JPL
0	2000 WY29	HUN	19.90	310 m	multiple	2000–2021	08 Jun 2021	39	Disc.: Spacewatch	MPC · JPL
0	2000 WZ51	MBA-I	18.58	570 m	multiple	2000–2021	07 Oct 2021	50	Disc.: Spacewatch Added on 9 March 2021	MPC · JPL
2	2000 WZ52	MBA-O	17.67	1.6 km	multiple	2000–2021	30 Oct 2021	51	Disc.: Spacewatch	MPC · JPL
0	2000 WA53	MBA-M	18.32	910 m	multiple	2000–2021	08 Aug 2021	27	Disc.: Spacewatch Alt.: 2013 WU75	MPC · JPL
0	2000 WQ53	MBA-O	17.61	1.7 km	multiple	2000–2021	28 Nov 2021	54	Disc.: Spacewatch Alt.: 2005 VM22	MPC · JPL
1	2000 WS53	MBA-I	19.30	410 m	multiple	2000–2021	09 Nov 2021	65	Disc.: Spacewatch Alt.: 2007 VO236	MPC · JPL
6	2000 WG63	APO	23.2	81 m	single	16 days	12 Dec 2000	47	Disc.: LINEAR AMO at MPC	MPC · JPL
5	2000 WH63	AMO	21.7	160 m	single	59 days	24 Jan 2001	44	Disc.: LINEAR	MPC · JPL
0	2000 WJ63	AMO	21.07	230 m	multiple	2000-2025	02 Mar 2025	100	Disc.: LINEAR	MPC · JPL
1	2000 WE105	MBA-M	18.76	750 m	multiple	2000–2022	26 Nov 2022	21	Disc.: Spacewatch	MPC · JPL
5	2000 WJ107	APO	23.8	62 m	single	24 days	20 Dec 2000	33	Disc.: LINEAR	MPC · JPL
5	2000 WL107	APO	24.8	39 m	single	21 days	20 Dec 2000	155	Disc.: LINEAR AMO at MPC	MPC · JPL
0	2000 WM107	APO	18.7	650 m	multiple	2000–2021	08 Jan 2021	131	Disc.: LINEAR	MPC · JPL
2	2000 WM147	MBA-I	18.96	480 m	multiple	2000–2020	14 Dec 2020	30	Disc.: Spacewatch Added on 11 May 2021	MPC · JPL
5	2000 WN148	AMO	22.4	120 m	single	22 days	21 Dec 2000	18	Disc.: LINEAR	MPC · JPL
7	2000 WQ148	APO	22.7	100 m	single	12 days	12 Dec 2000	48	Disc.: LINEAR	MPC · JPL
1	2000 WB170	MBA-M	17.99	1.1 km	multiple	2000–2021	03 Dec 2021	49	Disc.: Spacewatch	MPC · JPL
0	2000 WX177	MBA-I	17.9	780 m	multiple	2000–2020	06 Oct 2020	43	Disc.: Spacewatch Added on 11 May 2021	MPC · JPL
3	2000 WL183	TNO	7.6	100 km	multiple	2000–2020	14 Nov 2020	20	Disc.: La Silla Obs. LoUTNOs, cubewano (cold)	MPC · JPL
4	2000 WM183	TNO	7.19	188 km	multiple	2000–2022	26 Dec 2022	24	Disc.: La Silla Obs. LoUTNOs, cubewano (hot)	MPC · JPL
5	2000 WN183	TNO	7.0	132 km	multiple	2000–2006	20 Oct 2006	16	Disc.: La Silla Obs. LoUTNOs, cubewano (cold)	MPC · JPL
4	2000 WO183	TNO	7.46	107 km	multiple	2000–2021	01 Dec 2021	26	Disc.: La Silla Obs. LoUTNOs, cubewano (cold)	MPC · JPL
–	2000 WA187	HIL	17.7	1.6 km	single	24 days	17 Dec 2000	10	Disc.: Mauna Kea Obs.	MPC · JPL
D	2000 WQ193	MBA-O	17.4	1.8 km	single	27 days	21 Dec 2000	28	Disc.: Kitt Peak Alt.: 2000 YO141	MPC · JPL
0	2000 WV193	MBA-I	19.18	470 m	multiple	2000-2025	29 Aug 2025	35	Disc.: Kitt Peak	MPC · JPL
–	2000 WE194	JT	15.6	4.2 km	single	2 days	26 Nov 2000	25	Disc.: Kitt Peak Greek camp (L4)	MPC · JPL
0	2000 WF194	MBA-O	17.5	1.7 km	multiple	2000-2022	07 Apr 2022	49	Disc.: Kitt Peak	MPC · JPL
0	2000 WN194	MBA-O	17.45	1.8 km	multiple	2000–2021	07 Nov 2021	44	Disc.: Kitt Peak Added on 5 November 2021 Alt.: 2021 QY48	MPC · JPL
0	2000 WP194	MBA-I	19.3	410 m	multiple	2000–2021	04 Jan 2021	66	Disc.: Whipple Obs. Added on 21 August 2021 Alt.: 2013 RN1	MPC · JPL
1	2000 WP195	MBA-O	17.5	1.8 km	multiple	2000–2016	21 Oct 2016	32	Disc.: Spacewatch Alt.: 2011 WP123	MPC · JPL
0	2000 WM198	MBA-M	18.34	900 m	multiple	2000–2021	06 Jul 2021	30	Disc.: Spacewatch Added on 11 May 2021 Alt.: 2017 UK85	MPC · JPL
1	2000 WG200	MBA-M	17.6	1.3 km	multiple	2000–2019	12 Jan 2019	52	Disc.: Spacewatch	MPC · JPL
1	2000 WL200	MBA-O	16.7	2.5 km	multiple	2000–2019	08 Feb 2019	55	Disc.: Spacewatch	MPC · JPL
2	2000 WX201	MBA-I	19.0	470 m	multiple	2000–2017	24 Nov 2017	35	Disc.: Spacewatch	MPC · JPL
1	2000 WY201	MBA-O	17.4	1.8 km	multiple	2000–2017	26 Oct 2017	28	Disc.: SDSS	MPC · JPL
1	2000 WE202	MBA-M	18.7	760 m	multiple	2000–2017	25 Jul 2017	27	Disc.: Spacewatch	MPC · JPL
1	2000 WG202	MBA-O	17.87	1.5 km	multiple	2000–2021	11 Oct 2021	51	Disc.: Spacewatch	MPC · JPL
3	2000 WU203	MBA-M	18.3	650 m	multiple	2000–2020	05 Nov 2020	52	Disc.: Spacewatch	MPC · JPL
0	2000 WE204	MBA-I	18.3	650 m	multiple	2000–2019	27 Oct 2019	42	Disc.: Spacewatch	MPC · JPL
0	2000 WK204	MBA-M	18.3	920 m	multiple	2000–2020	27 Apr 2020	35	Disc.: Spacewatch	MPC · JPL
0	2000 WU204	MBA-O	17.47	1.8 km	multiple	2000–2021	10 Sep 2021	41	Disc.: Spacewatch	MPC · JPL

U	Designation	Class	Physical		Observations				Description and notes	Ref
U	Designation	Class	H	D	Opp.	Arc	Last	Used	Description and notes	Ref

2	2000 XL	MBA-M	19.1	450 m	multiple	2000–2020	22 Sep 2020	41	Disc.: Spacewatch Added on 22 July 2020 Alt.: 2004 VF127, 2012 TH144	MPC · JPL
1	2000 XN	MBA-M	18.44	860 m	multiple	2000–2021	07 Nov 2021	54	Disc.: Spacewatch Alt.: 2017 VB8	MPC · JPL
0	2000 XO8	Asteroid	16.4	2.9 km	multiple	2000–2018	14 Feb 2018	457	Disc.: LINEAR MCA at MPC	MPC · JPL
0	2000 XX10	MBA-I	17.62	890 m	multiple	1996–2021	19 Mar 2021	189	Disc.: Xinglong Station Alt.: 1996 SN4, 2014 HL15, 2015 QK10	MPC · JPL
6	2000 XF44	AMO	21.3	200 m	single	26 days	30 Dec 2000	31	Disc.: AMOS	MPC · JPL
3	2000 XJ44	APO	20.2	320 m	multiple	2000–2019	18 Apr 2019	45	Disc.: LINEAR	MPC · JPL
0	2000 XA54	MBA-I	19.9	310 m	multiple	2000–2020	15 Sep 2020	27	Disc.: Bohyunsan Obs.	MPC · JPL
0	2000 XD56	MBA-I	18.6	570 m	multiple	2000–2020	21 Jan 2020	34	Disc.: Spacewatch	MPC · JPL
1	2000 XL56	MBA-M	17.8	820 m	multiple	2000–2020	16 Jun 2020	30	Disc.: Spacewatch	MPC · JPL
2	2000 XM56	MBA-M	17.5	1.8 km	multiple	2000–2018	11 Nov 2018	42	Disc.: Catalina Station	MPC · JPL

U	Designation	Class	Physical		Observations				Description and notes	Ref
U	Designation	Class	H	D	Opp.	Arc	Last	Used	Description and notes	Ref

0	2000 YA	APO	23.7	65 m	multiple	2000–2011	27 Dec 2011	166	Disc.: LONEOS	MPC · JPL
4	2000 YV1	TNO	7.24	118 km	multiple	2000–2020	09 Dec 2020	23	Disc.: Kitt Peak LoUTNOs, cubewano (cold)	MPC · JPL
E	2000 YW1	TNO	7.0	137 km	single	2 days	18 Dec 2000	5	Disc.: Kitt Peak LoUTNOs, cubewano?	MPC · JPL
4	2000 YX1	TNO	7.06	129 km	multiple	2000–2021	11 Jan 2021	22	Disc.: Kitt Peak LoUTNOs, cubewano (cold)	MPC · JPL
7	2000 YY1	TNO	7.1	212 km	multiple	2000–2001	13 Dec 2001	10	Disc.: Kitt Peak LoUTNOs, centaur	MPC · JPL
E	2000 YZ1	TNO	7.9	90 km	multiple	2000–2001	09 Nov 2001	9	Disc.: Kitt Peak LoUTNOs, cubewano?	MPC · JPL
4	2000 YA2	TNO	7.0	132 km	multiple	2000–2013	06 Nov 2013	18	Disc.: Kitt Peak LoUTNOs, cubewano (cold)	MPC · JPL
E	2000 YD2	TNO	7.9	109 km	single	1 day	18 Dec 2000	4	Disc.: Kitt Peak LoUTNOs, other TNO	MPC · JPL
5	2000 YE2	TNO	8.26	81 km	multiple	2000–2021	11 Jan 2021	15	Disc.: Kitt Peak LoUTNOs, twotino	MPC · JPL
3	2000 YF2	TNO	7.0	132 km	multiple	2000–2016	04 Feb 2016	22	Disc.: Kitt Peak LoUTNOs, cubewano (cold)	MPC · JPL
E	2000 YG2	TNO	7.7	120 km	single	1 day	18 Dec 2000	4	Disc.: Kitt Peak LoUTNOs, other TNO	MPC · JPL
–	2000 YF4	HUN	21.9	120 m	single	5 days	22 Dec 2000	8	Disc.: Mauna Kea Obs.	MPC · JPL
0	2000 YG4	AMO	20.98	250 m	multiple	2000-2023	04 Dec 2023	142	Disc.: Spacewatch	MPC · JPL
0	2000 YJ4	MCA	18.35	920 m	multiple	2000–2023	16 May 2023	83	Disc.: LINEAR Alt.: 2013 YD21	MPC · JPL
2	2000 YL4	MCA	19.0	470 m	multiple	1996–2009	17 Mar 2009	90	Disc.: LINEAR	MPC · JPL
1	2000 YY16	MBA-M	17.2	1.1 km	multiple	2000–2021	02 Dec 2021	43	Disc.: LINEAR	MPC · JPL
E	2000 YB29	TNO	7.9	124 km	single	11 days	01 Jan 2001	6	Disc.: Mauna Kea Obs. LoUTNOs, plutino?, BR-mag: 1.50	MPC · JPL
0	2000 YG29	APO	18.7	650 m	multiple	2000–2018	09 May 2018	197	Disc.: LONEOS Potentially hazardous object AMO at MPC	MPC · JPL
1	2000 YS134	ATE	24.02	60 m	multiple	2000-2024	03 Feb 2024	55	Disc.: LINEAR	MPC · JPL4
1	2000 YT134	AMO	18.7	650 m	multiple	2000–2007	09 Mar 2007	89	Disc.: LONEOS	MPC · JPL
0	2000 YW140	MBA-O	17.1	2.1 km	multiple	2000–2021	08 Nov 2021	43	Disc.: Kitt Peak Added on 24 December 2021	MPC · JPL
E	2000 YN141	HIL	17.6	1.7 km	single	2 days	22 Dec 2000	14	Disc.: Kitt Peak	MPC · JPL
0	2000 YU141	MBA-O	17.7	1.6 km	multiple	2000–2020	02 Feb 2020	52	Disc.: Kitt Peak Added on 22 July 2020	MPC · JPL
E	2000 YQ142	TNO	7.6	143 km	single	2 days	24 Dec 2000	5	Disc.: Mauna Kea Obs. LoUTNOs, plutino?	MPC · JPL
E	2000 YY142	TNO	7.3	119 km	single	1 day	24 Dec 2000	3	Disc.: Mauna Kea Obs. LoUTNOs, cubewano?	MPC · JPL
0	2000 YN146	MBA-I	18.0	750 m	multiple	2000–2019	28 Nov 2019	43	Disc.: Kitt Peak	MPC · JPL
0	2000 YR146	MBA-I	18.8	520 m	multiple	2000–2019	24 Dec 2019	35	Disc.: Spacewatch	MPC · JPL

List of unnumbered minor planets: 2000 U–Y

U

V

W

X

Y

References

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