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 April 2022, it contains a total of 48 bodies. ^{[1] [2] [3]} For more information see the description on the main page. Also see list for the previous and next year .

2009

Main article: List of unnumbered trans-Neptunian objects

Designation	First Observed (discovered)		D (km)	Orbital description						Remarks	Refs
	Date	Observer (Site)		Class	a (AU)	e	i (°)	q (AU)	Q (AU)
2009 DJ143	18 February 2009	Mauna Kea Obs. ( 568 )	169	res  · 4:13	65.6	0.43	18	37.4	93.7	—	MPC  · JPL
2009 DK143	18 February 2009	Mauna Kea Obs. (568)	54	cubewano?	43.5	0.17	10	36.0	51.1	—	MPC  · JPL
2009 DL143	18 February 2009	Mauna Kea Obs. (568)	109	res  · 5:9	43.4	0.05	11	41.3	45.4	—	MPC  · JPL
2009 DM143	18 February 2009	Mauna Kea Obs. (568)	50	SDO	54.3	0.34	16	35.9	72.8	—	MPC  · JPL
2009 DN143	18 February 2009	Mauna Kea Obs. (568)	82	plutino	39.2	0.20	11	31.6	46.9	—	MPC  · JPL
2009 DO143	18 February 2009	Mauna Kea Obs. (568)	89	cubewano (hot)	44.1	0.12	12	38.7	49.5	—	MPC  · JPL
2009 DP143	18 February 2009	Mauna Kea Obs. (568)	87	other TNO	43.8	0.12	16	38.7	48.8	—	MPC  · JPL
2009 DQ143	18 February 2009	Mauna Kea Obs. (568)	105	other TNO	44.3	0.27	11	32.5	56.2	—	MPC  · JPL
2009 DR143	18 February 2009	Mauna Kea Obs. (568)	159	cubewano (hot)	46.7	0.16	10	39.2	54.2	—	MPC  · JPL
2009 DS143	18 February 2009	Mauna Kea Obs. (568)	79	SDO	49.0	0.24	11	37.3	60.7	—	MPC  · JPL
2009 DT143	22 February 2009	Mauna Kea Obs. (568)	46	other TNO	38.3	0.12	30	33.5	43.0	—	MPC  · JPL
2009 JA19	14 May 2009	Mauna Kea Obs. (568)	125	twotino?	47.7	0.36	16	30.4	64.9	—	MPC  · JPL
2009 JB19	14 May 2009	Mauna Kea Obs. (568)	120	other TNO	46.5	0.16	19	39.0	54.1	—	MPC  · JPL
2009 JC19	15 May 2009	Mauna Kea Obs. (568)	119	SDO	50.8	0.32	31	34.5	67.0	—	MPC  · JPL
2009 JD19	15 May 2009	Mauna Kea Obs. (568)	130	plutino?	39.7	0.10	21	35.5	43.9	—	MPC  · JPL
2009 JE19	15 May 2009	Mauna Kea Obs. (568)	188	plutino	39.4	0.30	22	27.5	51.3	—	MPC  · JPL
2009 JF19	15 May 2009	Mauna Kea Obs. (568)	87	other TNO	44.0	0.30	16	30.8	57.2	—	MPC  · JPL
2009 JT18	14 May 2009	Mauna Kea Obs. (568)	79	other TNO	44.0	0.27	19	32.2	55.8	—	MPC  · JPL
2009 JU18	14 May 2009	Mauna Kea Obs. (568)	75	SDO	56.4	0.32	27	38.3	74.5	—	MPC  · JPL
2009 JV18	14 May 2009	Mauna Kea Obs. (568)	112	cubewano (hot)	45.0	0.15	14	38.2	51.8	—	MPC  · JPL
2009 JW18	14 May 2009	Mauna Kea Obs. (568)	83	other TNO	46.1	0.11	18	41.0	51.1	—	MPC  · JPL
2009 JX18	14 May 2009	Mauna Kea Obs. (568)	61	centaur	37.6	0.46	20	20.2	55.0	—	MPC  · JPL
2009 JY18	14 May 2009	Mauna Kea Obs. (568)	72	SDO	54.3	0.45	22	30.1	78.6	—	MPC  · JPL
2009 JZ18	14 May 2009	Mauna Kea Obs. (568)	131	plutino	39.2	0.24	24	29.6	48.8	—	MPC  · JPL
2009 KA37	27 May 2009	Mauna Kea Obs. (568)	72	SDO	53.7	0.37	15	33.9	73.4	—	MPC  · JPL
2009 KJ30	25 May 2009	Mauna Kea Obs. (568)	91	other TNO	46.6	0.19	31	37.8	55.4	—	MPC  · JPL
2009 KK30	25 May 2009	M. Yagi (568)	143	SDO	60.1	0.37	14	37.9	82.3	—	MPC  · JPL
2009 KL30	25 May 2009	M. Yagi (568)	132	other TNO	45.8	0.20	23	36.8	54.7	—	MPC  · JPL
2009 KM30	25 May 2009	Mauna Kea Obs. (568)	66	other TNO	41.7	0.01	4	41.4	42.0	—	MPC  · JPL
2009 KN30	25 May 2009	M. Yagi (568)	95	res  · 2:7	69.9	0.56	5	30.5	109	—	MPC  · JPL
2009 KO30	25 May 2009	M. Yagi (568)	98	cubewano (hot)	44.4	0.07	9	41.2	47.6	—	MPC  · JPL
2009 KT36	20 May 2009	Mauna Kea Obs. (568)	97	centaur	43.4	0.37	30	27.5	59.4	—	MPC  · JPL
2009 KU36	20 May 2009	Mauna Kea Obs. (568)	60	other TNO	43.0	0.16	20	35.9	50.1	—	MPC  · JPL
2009 KV36	25 May 2009	Mauna Kea Obs. (568)	95	other TNO	42.9	0.04	16	41.3	44.5	—	MPC  · JPL
2009 KW36	27 May 2009	Mauna Kea Obs. (568)	76	other TNO	45.0	0.15	30	38.1	51.9	—	MPC  · JPL
2009 KX36	27 May 2009	Mauna Kea Obs. (568)	95	SDO	67.8	0.34	19	44.7	90.9	—	MPC  · JPL
2009 KY36	27 May 2009	Mauna Kea Obs. (568)	84	centaur	51.2	0.46	25	27.7	74.8	—	MPC  · JPL
2009 KZ36	27 May 2009	Mauna Kea Obs. (568)	48	centaur	48.4	0.59	17	20.0	76.8	—	MPC  · JPL
2009 MA10	21 June 2009	Mauna Kea Obs. (568)	45	cubewano?	44.4	0.05	2	42.1	46.7	—	MPC  · JPL
2009 MF10	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 MG10	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 UF156	18 October 2009	Mauna Kea Obs. ( 568 )	167	cubewano (cold)	43.0	0.02	1	42.2	43.9	—	MPC  · JPL
2009 XM26	8 December 2009	Pan-STARRS ( F51 )	146	centaur	43.2	0.42	22	25.1	61.3	—	MPC  · JPL
2009 YG19	25 December 2009	D. L. Rabinowitz ( 809 )	208	res  · 2:5	55.8	0.41	5	32.9	78.7	BR-mag: 1.62	MPC  · JPL
2009 YK32	25 December 2009	Pan-STARRS ( F51 )	203	cubewano (cold)	43.8	0.03	4	42.7	45.0	—	MPC  · JPL
2009 YR26	17 December 2009	Pan-STARRS (F51)	263	other TNO	41.2	0.05	19	39.1	43.3	—	MPC  · JPL
2009 YS26	17 December 2009	Pan-STARRS (F51)	237	cubewano (hot)	36.4	0.03	7	35.5	37.4	—	MPC  · JPL
2009 YT26	26 December 2009	Pan-STARRS (F51)	226	plutino	39.2	0.17	10	32.4	46.0	—	MPC  · JPL

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References

1. "List Of Transneptunian Objects". Minor Planet Center. 16 April 2022. Retrieved 16 April 2022.
2. "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. 16 April 2022. Retrieved 16 April 2022.
3. "List of Known Trans-Neptunian Objects". Johnston's Archive. 2 January 2022. Retrieved 16 April 2022.