List of unnumbered minor planets: 1997

From Wikipedia, the free encyclopedia

This is a partial list of unnumbered minor planets for principal provisional designations assigned between 1 January and 31 December 1997. As of August 2021, a total of 234 bodies remain unnumbered for this period.[1][2][3] Also see previous and next year.

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

A[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
3 ATE 20.5 280 m multiple 1997–2017 28 Dec 2017 148 Disc.: NEAT/GEODSS MPC · JPL
0 MBA-O 16.6 2.7 km multiple 1997–2021 18 Jan 2021 90 Disc.: Spacewatch MPC · JPL
2 MBA-M 17.2 1.1 km multiple 1997–2021 08 Jan 2021 89 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.0 1.7 km multiple 1997–2017 18 Dec 2017 45 Disc.: Spacewatch
Added on 22 July 2020
Alt.: 2015 MS33, 2017 YW15		 MPC · JPL
1 MCA 17.7 860 m multiple 1997–2019 06 Jul 2019 131 Disc.: NEAT/GEODSS MPC · JPL
– MBA-O 17.5 1.8 km single 2 days 13 Jan 1997 5 Disc.: Mauna Kea Obs. MPC · JPL
E MBA-O 16.0 3.5 km single 5 days 10 Jan 1997 6 Disc.: Cerro Tololo MPC · JPL
E MBA-O 13.5 11 km single 5 days 10 Jan 1997 6 Disc.: Cerro Tololo MPC · JPL

B[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
0 MBA-M 17.2 1.5 km multiple 1997–2020 26 Jul 2020 73 Disc.: Spacewatch
Alt.: 2010 AC32		 MPC · JPL
0 MBA-M 16.7 2.5 km multiple 1997–2021 11 Jun 2021 142 Disc.: Spacewatch
Alt.: 2014 WB375		 MPC · JPL

C[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
0 MBA-I 17.6 900 m multiple 1995–2021 15 Jan 2021 133 Disc.: Spacewatch
Alt.: 1995 OS16, 2012 RQ21		 MPC · JPL
0 MBA-I 17.7 860 m multiple 1997–2020 27 Apr 2020 92 Disc.: Spacewatch
Added on 22 July 2020
Alt.: 2016 CU208		 MPC · JPL
0 MBA-M 17.4 980 m multiple 1997–2020 07 Dec 2020 123 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.8 820 m multiple 1997–2020 15 Oct 2020 55 Disc.: Spacewatch
Alt.: 2014 FJ32		 MPC · JPL
0 MBA-O 16.3 3.1 km multiple 1997–2020 11 Oct 2020 125 Disc.: Spacewatch MPC · JPL
6 APO 27.5 11 m single 2 days 11 Feb 1997 21 Disc.: Spacewatch MPC · JPL
0 MBA-O 16.5 2.8 km multiple 1997–2021 08 Jun 2021 79 Disc.: Spacewatch
Alt.: 2014 BQ41		 MPC · JPL
– MBA-I 18.5 590 m single 9 days 15 Feb 1997 9 Disc.: Spacewatch MPC · JPL
1 MBA-I 18.2 680 m multiple 1997–2019 06 Mar 2019 70 Disc.: Spacewatch MPC · JPL
2 TNO 6.5 222 km multiple 1997–2018 09 Dec 2018 54 Disc.: Mauna Kea Obs.
LoUTNOs, cubewano (cold)		 MPC · JPL
E TNO 6.5 222 km single 27 days 07 Mar 1997 11 Disc.: Mauna Kea Obs.
LoUTNOs, plutino?		 MPC · JPL
0 MBA-O 16.8 2.4 km multiple 1997–2018 05 Feb 2018 105 Disc.: Spacewatch MPC · JPL
0 MBA-O 16.7 2.5 km multiple 1997–2019 08 Feb 2019 95 Disc.: Spacewatch MPC · JPL
0 MBA-M 16.74 2.5 km multiple 1997–2021 10 May 2021 107 Disc.: Spacewatch MPC · JPL
1 MBA-M 17.6 900 m multiple 1997–2020 17 Oct 2020 84 Disc.: Spacewatch MPC · JPL

E[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
0 MBA-I 17.95 760 m multiple 1997–2021 06 Aug 2021 106 Disc.: Spacewatch
Alt.: 2003 WF164, 2014 WS146		 MPC · JPL
0 MBA-M 17.3 1.9 km multiple 1997–2020 29 Apr 2020 75 Disc.: Spacewatch
Alt.: 2010 EC59		 MPC · JPL
0 MBA-I 18.3 650 m multiple 1997–2020 14 Jun 2020 91 Disc.: Spacewatch
Added on 22 July 2020
Alt.: 2014 OR110		 MPC · JPL
– MBA-M 19.6 510 m single 6 days 10 Mar 1997 8 Disc.: Spacewatch MPC · JPL
0 MBA-O 16.47 2.8 km multiple 1997–2021 08 Aug 2021 165 Disc.: Spacewatch MPC · JPL
0 MBA-I 18.6 570 m multiple 1997–2020 24 Jun 2020 43 Disc.: Spacewatch
Added on 22 July 2020
Alt.: 2020 JO11		 MPC · JPL
3 MBA-M 18.4 880 m multiple 1997–2019 08 May 2019 24 Disc.: Spacewatch MPC · JPL
1 HUN 18.3 650 m multiple 1997–2020 22 May 2020 83 Disc.: Spacewatch
Alt.: 2018 TY14		 MPC · JPL
0 MBA-O 17.0 2.2 km multiple 1997–2020 21 May 2020 33 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.0 1.2 km multiple 1997–2020 07 Dec 2020 111 Disc.: Spacewatch
Added on 17 June 2021
Alt.: 2009 DH67		 MPC · JPL
0 MBA-O 17.1 2.1 km multiple 1997–2020 15 May 2020 57 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.2 1.1 km multiple 1997–2021 16 Jan 2021 238 Disc.: Spacewatch
Added on 17 June 2021
Alt.: 2008 XU41		 MPC · JPL
0 MBA-M 17.3 1.0 km multiple 1997–2020 14 Oct 2020 75 Disc.: Spacewatch
Added on 19 October 2020
Alt.: 2008 YX30		 MPC · JPL
3 MBA-M 18.1 1.3 km multiple 1997–2015 30 Mar 2015 24 Disc.: Spacewatch MPC · JPL
0 MBA-O 16.2 3.2 km multiple 1994–2021 07 Jun 2021 98 Disc.: Spacewatch
Added on 22 July 2020		 MPC · JPL
6 AMO 22.8 98 m single 21 days 29 Mar 1997 17 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.3 1.9 km multiple 1997–2020 23 Jan 2020 58 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.2 1.5 km multiple 1997–2020 11 Dec 2020 89 Disc.: Spacewatch
Alt.: 2015 MV52		 MPC · JPL
0 MBA-O 16.0 3.5 km multiple 1997–2020 20 Oct 2020 158 Disc.: Spacewatch MPC · JPL
0 MBA-O 16.5 2.8 km multiple 1997–2020 25 May 2020 157 Disc.: Spacewatch MPC · JPL
0 MBA-I 18.12 710 m multiple 1997–2021 15 Aug 2021 88 Disc.: Spacewatch MPC · JPL

G[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
2 MBA-O 17.9 1.5 km multiple 1997–2018 23 Apr 2018 87 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.0 1.2 km multiple 1997–2020 11 Nov 2020 101 Disc.: Spacewatch
Alt.: 2008 YR31, 2016 WQ20		 MPC · JPL
0 MBA-M 17.5 1.3 km multiple 1997–2020 21 Oct 2020 121 Disc.: Spacewatch
Added on 22 July 2020		 MPC · JPL
1 MBA-O 17.0 2.2 km multiple 1997–2019 24 Aug 2019 88 Disc.: NEAT/GEODSS MPC · JPL
2 APO 22.8 98 m multiple 1997–2014 02 May 2014 64 Disc.: Spacewatch
AMO at MPC		 MPC · JPL
0 APO 19.0 560 m multiple 1997–2021 09 Jun 2021 799 Disc.: LINEAR
Potentially hazardous object		 MPC · JPL
0 MBA-I 18.09 720 m multiple 1997–2021 30 Jun 2021 136 Disc.: Spacewatch
Alt.: 2005 UK453		 MPC · JPL
0 MCA 18.36 630 m multiple 1997–2021 30 Apr 2021 43 Disc.: Spacewatch
Alt.: 2009 FQ29		 MPC · JPL
0 MBA-O 16.7 2.5 km multiple 1997–2020 14 Oct 2020 97 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.7 1.2 km multiple 1997–2020 18 Sep 2020 79 Disc.: Spacewatch MPC · JPL
2 MCA 18.0 750 m multiple 1997–2021 06 Jan 2021 80 Disc.: Whipple Obs. MPC · JPL
1 MBA-M 17.9 1.1 km multiple 1997–2019 05 Aug 2019 47 Disc.: Spacewatch MPC · JPL
6 APO 21.5 180 m single 22 days 06 May 1997 90 Disc.: Spacewatch
Potentially hazardous object		 MPC · JPL
2 TNO 8.6 84 km multiple 1997–2017 24 Jun 2017 38 Disc.: Mauna Kea Obs.
LoUTNOs, cubewano (hot)
Alt.: 2001 FH193		 MPC · JPL

H[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
0 MBA-I 17.89 790 m multiple 1997–2021 13 Jul 2021 102 Disc.: Spacewatch
Alt.: 2005 JB76		 MPC · JPL
4 MBA-M 18.2 960 m multiple 1997–2010 05 May 2010 16 Disc.: Spacewatch
Alt.: 2010 HY81		 MPC · JPL
0 MBA-I 17.6 900 m multiple 1997–2021 03 Jan 2021 120 Disc.: Spacewatch MPC · JPL

J[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
0 MBA-O 16.33 3.0 km multiple 1997–2021 17 Aug 2021 114 Disc.: Mauna Kea Obs. MPC · JPL
2 MBA-O 17.2 2.0 km multiple 1997–2020 23 Aug 2020 45 Disc.: Mauna Kea Obs.
Alt.: 2010 RA100		 MPC · JPL
0 MBA-I 17.3 1.0 km multiple 1997–2020 15 Dec 2020 114 Disc.: Spacewatch MPC · JPL
0 MBA-I 17.6 900 m multiple 1997–2020 14 Jul 2020 151 Disc.: Spacewatch MPC · JPL
0 MBA-O 15.98 3.5 km multiple 1997–2021 12 Aug 2021 174 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.7 1.6 km multiple 1997–2020 05 Nov 2020 76 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.94 770 m multiple 1997–2021 10 May 2021 77 Disc.: Spacewatch
Added on 11 May 2021		 MPC · JPL

K[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
0 MBA-M 17.0 2.2 km multiple 1997–2020 11 Sep 2020 81 Disc.: Whipple Obs. MPC · JPL
0 MBA-O 15.8 3.9 km multiple 1997–2020 21 Jul 2020 119 Disc.: Spacewatch MPC · JPL
0 MBA-I 18.1 710 m multiple 1997–2019 10 Jul 2019 132 Disc.: DB Missing
Added on 22 July 2020		 MPC · JPL

L[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
0 MBA-I 18.4 620 m multiple 1997–2018 16 May 2018 55 Disc.: Spacewatch MPC · JPL
0 MBA-I 18.7 540 m multiple 1997–2021 15 May 2021 177 Disc.: Spacewatch
Added on 11 May 2021
Alt.: 2021 GD51		 MPC · JPL

M[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
0 MBA-O 15.70 4.0 km multiple 1997–2021 20 Aug 2021 93 Disc.: Spacewatch
Added on 22 July 2020
Alt.: 2012 BS143		 MPC · JPL
7 APO 19.1 540 m single 17 days 12 Jul 1997 46 Disc.: LINEAR MPC · JPL
1 CEN 16.0 3.0 km single 137 days 13 Nov 1997 115 Disc.: LINEAR
MCA at MPC		 MPC · JPL
0 MBA-O 17.4 1.8 km multiple 1997–2019 20 Dec 2019 50 Disc.: DB Missing
Added on 22 July 2020		 MPC · JPL

N[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
0 MBA-M 17.4 980 m multiple 1997–2021 18 Jan 2021 82 Disc.: Spacewatch
Alt.: 2014 QF376		 MPC · JPL
0 MBA-M 16.3 3.1 km multiple 1997–2020 15 Dec 2020 179 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.88 790 m multiple 1997–2021 16 Aug 2021 89 Disc.: Spacewatch
Added on 22 July 2020		 MPC · JPL
0 MBA-O 16.8 2.4 km multiple 1997–2018 15 Oct 2018 92 Disc.: Spacewatch
Alt.: 2017 HL31		 MPC · JPL
0 MBA-I 19.0 470 m multiple 1997–2020 27 Apr 2020 30 Disc.: Spacewatch MPC · JPL
0 MBA-I 18.4 620 m multiple 1997–2020 04 Dec 2020 54 Disc.: Spacewatch
Added on 17 January 2021		 MPC · JPL
0 MBA-M 17.75 840 m multiple 1997–2021 05 Jul 2021 76 Disc.: Spacewatch MPC · JPL
4 MCA 20.5 240 m single 59 days 10 Sep 1997 60 Disc.: Spacewatch MPC · JPL
0 MBA-O 16.00 3.5 km multiple 1997–2021 20 Aug 2021 109 Disc.: Spacewatch MPC · JPL
2 MBA-I 18.9 490 m multiple 1997–2018 17 Nov 2018 46 Disc.: Spacewatch
Alt.: 2018 RM47		 MPC · JPL

O[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
– MCA 19.0 470 m single 4 days 30 Jul 1997 31 Disc.: ODAS MPC · JPL
0 MBA-M 18.47 600 m multiple 1997–2021 18 Jul 2021 44 Disc.: Spacewatch MPC · JPL
0 MBA-O 16.7 2.5 km multiple 1997–2020 23 Oct 2020 69 Disc.: Spacewatch MPC · JPL

P[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
2 AMO 19.7 410 m multiple 1997–2007 16 Aug 2007 127 Disc.: NEAT/GEODSS MPC · JPL
0 MBA-M 18.0 1.1 km multiple 1997–2019 16 Dec 2019 117 Disc.: Spacewatch MPC · JPL
0 MBA-M 16.5 2.8 km multiple 1997–2019 06 May 2019 81 Disc.: Spacewatch MPC · JPL
0 MBA-I 18.24 670 m multiple 1997–2021 08 Jul 2021 83 Disc.: Spacewatch MPC · JPL

Q[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
0 APO 20.08 340 m multiple 1997–2011 09 Oct 2011 180 Disc.: Mauna Kea Obs.
Potentially hazardous object		 MPC · JPL
2 TNO 7.0 176 km multiple 1997–2014 27 Sep 2014 30 Disc.: Mauna Kea Obs.
LoUTNOs, cubewano (hot), BR-mag: 1.68; taxonomy: RR		 MPC · JPL

R[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
1 AMO 19.8 390 m multiple 1997–2007 12 Jun 2007 310 Disc.: Ondřejov Obs. MPC · JPL
0 MCA 17.5 940 m multiple 1997–2020 14 Dec 2020 118 Disc.: Ondřejov Obs.
Alt.: 2012 RV6		 MPC · JPL
E TNO 7.5 140 km single 52 days 29 Oct 1997 20 Disc.: La Palma Obs.
LoUTNOs, cubewano (hot)		 MPC · JPL
0 MCA 17.7 1.2 km multiple 1997–2020 23 Mar 2020 107 Disc.: NRC
Alt.: 1997 RL10, 2014 QQ419		 MPC · JPL
5 TNO 8.3 97 km multiple 1997–2000 08 Aug 2000 22 Disc.: Palomar Obs.
LoUTNOs, cubewano (hot)		 MPC · JPL
0 MBA-M 18.3 920 m multiple 1997–2019 02 Oct 2019 43 Disc.: ODAS
Added on 22 July 2020		 MPC · JPL
E TNO 9.5 56 km single 1 day 06 Sep 1997 4 Disc.: Palomar Obs.
LoUTNOs, cubewano (hot)		 MPC · JPL

S[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
0 MBA-I 18.7 540 m multiple 1997–2020 02 Feb 2020 41 Disc.: Spacewatch MPC · JPL
1 MBA-I 18.6 570 m multiple 1997–2020 20 Apr 2020 52 Disc.: Spacewatch
Alt.: 2014 RE20		 MPC · JPL
0 MBA-O 16.8 2.4 km multiple 1997–2019 04 Oct 2019 82 Disc.: Spacewatch
Alt.: 2014 UG3		 MPC · JPL
0 MBA-O 17.1 2.2 km multiple 1997–2021 07 Jan 2021 108 Disc.: Spacewatch
Alt.: 2010 ED152		 MPC · JPL
0 MBA-O 17.3 1.9 km multiple 1997–2020 15 Oct 2020 49 Disc.: Spacewatch
Added on 17 January 2021		 MPC · JPL
0 MBA-I 18.30 650 m multiple 1997–2021 15 Aug 2021 71 Disc.: Spacewatch
Alt.: 2014 OR217		 MPC · JPL
0 MBA-M 17.0 2.2 km multiple 1997–2020 16 Oct 2020 131 Disc.: Spacewatch MPC · JPL
2 MBA-I 18.8 520 m multiple 1997–2020 27 Jan 2020 30 Disc.: Spacewatch MPC · JPL
1 MBA-M 17.5 1.3 km multiple 1997–2019 17 Dec 2019 58 Disc.: Spacewatch MPC · JPL
0 MBA-I 18.0 750 m multiple 1997–2020 23 Oct 2020 92 Disc.: Spacewatch
Alt.: 2011 DF16		 MPC · JPL
2 1997 SZ10 TNO 8.5 88 km multiple 1997–2008 24 Oct 2008 29 Disc.: Mauna Kea Obs.
LoUTNOs, twotino, BR-mag: 1.79; taxonomy: RR		 MPC · JPL
0 MBA-I 18.5 590 m multiple 1997–2020 11 Dec 2020 32 Disc.: Spacewatch
Added on 22 July 2020
Alt.: 2013 NM47		 MPC · JPL
0 MBA-I 17.9 780 m multiple 1997–2021 05 Jan 2021 105 Disc.: Spacewatch MPC · JPL
– MBA-M 19.3 410 m single 7 days 04 Oct 1997 8 Disc.: Spacewatch MPC · JPL
0 HIL 15.6 4.2 km multiple 1997–2020 06 Dec 2020 63 Disc.: Spacewatch
Alt.: 1997 TD30, 2012 QP67		 MPC · JPL
2 MBA-I 19.6 360 m multiple 1997–2014 27 Oct 2014 25 Disc.: Spacewatch
Alt.: 2014 UG164		 MPC · JPL
0 MBA-M 17.9 1.1 km multiple 1997–2020 19 Jan 2020 110 Disc.: Spacewatch
Alt.: 2010 RH81, 2010 RU83		 MPC · JPL
0 MBA-M 17.4 1.4 km multiple 1997–2018 11 Jul 2018 48 Disc.: Spacewatch
Alt.: 2014 QE440		 MPC · JPL
0 MBA-O 17.5 1.8 km multiple 1997–2018 05 Oct 2018 50 Disc.: Spacewatch
Alt.: 2013 TJ140		 MPC · JPL
1 MBA-I 18.3 650 m multiple 1997–2020 06 Dec 2020 101 Disc.: Spacewatch MPC · JPL
0 MBA-O 17.0 2.2 km multiple 1997–2021 08 Jun 2021 73 Disc.: Spacewatch MPC · JPL
1 MBA-I 18.8 520 m multiple 1997–2016 08 Jan 2016 61 Disc.: Spacewatch
Alt.: 2015 WZ5		 MPC · JPL
0 MBA-O 17.2 2.0 km multiple 1997–2021 05 Jun 2021 71 Disc.: Spacewatch MPC · JPL
3 MBA-M 19.2 430 m multiple 1997–2018 17 Nov 2018 37 Disc.: Spacewatch
Alt.: 2018 VR92		 MPC · JPL
0 MBA-M 17.83 810 m multiple 1997–2021 05 Aug 2021 50 Disc.: Mauna Kea Obs. MPC · JPL
0 MBA-M 17.46 1.4 km multiple 1997–2021 03 May 2021 98 Disc.: Spacewatch
Alt.: 2010 UK45		 MPC · JPL
– MBA-M 18.8 520 m single 12 days 10 Oct 1997 9 Disc.: Spacewatch MPC · JPL
0 MBA-I 18.3 650 m multiple 1993–2020 05 Nov 2020 82 Disc.: Spacewatch
Alt.: 1993 QF11		 MPC · JPL
0 MBA-I 17.7 860 m multiple 1997–2020 19 Aug 2020 147 Disc.: Spacewatch
Alt.: 2007 RW6		 MPC · JPL
3 MBA-O 18.1 1.3 km multiple 1997–2018 17 Aug 2018 31 Disc.: Spacewatch
Added on 11 May 2021
Alt.: 2013 TB128		 MPC · JPL
0 MBA-O 16.7 2.5 km multiple 1997–2021 05 Jan 2021 63 Disc.: Spacewatch
Added on 17 January 2021
Alt.: 2003 UK40		 MPC · JPL
0 MBA-M 17.7 1.6 km multiple 1997–2020 16 Aug 2020 46 Disc.: Spacewatch MPC · JPL
1 MBA-M 17.7 1.6 km multiple 1997–2020 15 Oct 2020 52 Disc.: Spacewatch MPC · JPL
1 MBA-O 17.2 2.0 km multiple 1997–2018 02 Oct 2018 39 Disc.: Spacewatch
Added on 17 June 2021
Alt.: 2008 WU158		 MPC · JPL
0 MBA-O 16.6 2.7 km multiple 1997–2019 02 Dec 2019 53 Disc.: Spacewatch MPC · JPL
0 MBA-I 17.7 860 m multiple 1997–2020 24 Dec 2020 138 Disc.: Spacewatch
Alt.: 2004 PW22, 2015 TN1		 MPC · JPL
1 MBA-I 18.4 620 m multiple 1997–2020 07 Dec 2020 96 Disc.: Spacewatch
Alt.: 2016 SP45		 MPC · JPL
0 MBA-O 16.2 3.2 km multiple 1997–2020 17 Dec 2020 127 Disc.: Spacewatch
Alt.: 2014 ST348, 2017 DW92		 MPC · JPL
8 MBA-M 18.9 700 m single 12 days 10 Oct 1997 9 Disc.: Spacewatch MPC · JPL
0 MBA-O 16.75 2.5 km multiple 1997–2021 17 Aug 2021 72 Disc.: Spacewatch
Alt.: 2013 RC1		 MPC · JPL
0 MBA-M 17.5 1.3 km multiple 1997–2020 09 Dec 2020 185 Disc.: Spacewatch MPC · JPL
0 MBA-O 16.3 3.1 km multiple 1997–2020 22 Nov 2020 93 Disc.: Spacewatch
Alt.: 2017 HJ19		 MPC · JPL
0 MBA-M 17.57 910 m multiple 1997–2021 23 May 2021 80 Disc.: Spacewatch
Alt.: 2008 EO90		 MPC · JPL
0 MBA-M 18.0 1.1 km multiple 1997–2019 27 Nov 2019 83 Disc.: Spacewatch
Alt.: 2015 XF307		 MPC · JPL
0 MBA-M 17.9 1.1 km multiple 1997–2019 30 Nov 2019 62 Disc.: Spacewatch
Alt.: 2019 NW22		 MPC · JPL
2 MBA-I 18.8 520 m multiple 1997–2015 02 Nov 2015 36 Disc.: Spacewatch
Alt.: 2015 OW28		 MPC · JPL
0 MBA-M 17.72 1.2 km multiple 1997–2021 02 May 2021 114 Disc.: Bergisch Gladbach
Alt.: 2018 RD34		 MPC · JPL
1 MBA-O 17.0 2.2 km multiple 1997–2019 29 Mar 2019 43 Disc.: Spacewatch MPC · JPL
4 MBA-I 19.1 450 m multiple 1997–2014 13 Oct 2014 21 Disc.: Spacewatch
Alt.: 2014 TN38		 MPC · JPL
0 MBA-M 17.8 820 m multiple 1997–2021 30 Jun 2021 67 Disc.: Spacewatch
Alt.: 2001 SH356		 MPC · JPL
0 MBA-O 15.5 4.4 km multiple 1997–2020 12 Dec 2020 131 Disc.: Mauna Kea Obs. MPC · JPL
0 MBA-M 17.4 980 m multiple 1997–2019 23 Apr 2019 96 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.1 2.1 km multiple 1997–2020 07 Oct 2020 119 Disc.: Spacewatch MPC · JPL
0 MBA-O 17.06 2.2 km multiple 1997–2021 14 Jul 2021 106 Disc.: Spacewatch MPC · JPL

T[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
2 MBA-I 18.1 710 m multiple 1997–2018 14 Jan 2018 67 Disc.: Mauna Kea Obs.
Alt.: 2009 UF81		 MPC · JPL
6 MBA-O 16.7 2.5 km multiple 1997–2003 18 Oct 2003 22 Disc.: Mauna Kea Obs.
Alt.: 2003 UE31		 MPC · JPL
0 MBA-O 16.7 2.5 km multiple 1997–2020 26 Jan 2020 59 Disc.: Mauna Kea Obs. MPC · JPL
E MBA-O — — single 2 days 04 Oct 1997 18 Disc.: Mauna Kea Obs. MPC · JPL
9 MBA-O 99.99 0 m single 1 day 03 Oct 1997 11 Disc.: Mauna Kea Obs.
Added on 21 August 2021		 MPC · JPL
0 MBA-M 17.24 2.0 km multiple 1997–2021 19 Aug 2021 57 Disc.: ODAS
Alt.: 2011 VJ9		 MPC · JPL
0 MBA-I 18.20 680 m multiple 1997–2021 18 Aug 2021 77 Disc.: ODAS
Alt.: 2009 BC90		 MPC · JPL
0 MBA-O 17.0 2.2 km multiple 1997–2020 25 Jan 2020 37 Disc.: Spacewatch MPC · JPL
3 MBA-I 18.7 540 m multiple 1997–2014 20 Sep 2014 34 Disc.: Spacewatch
Alt.: 2014 RW32		 MPC · JPL
0 MBA-I 18.3 650 m multiple 1997–2021 08 Jan 2021 38 Disc.: Spacewatch MPC · JPL
0 MBA-I 18.5 590 m multiple 1997–2020 22 Apr 2020 61 Disc.: Mauna Kea Obs.
Alt.: 2004 VJ3, 2014 UM164		 MPC · JPL
E TNO 8.5 88 km single 24 days 29 Oct 1997 12 Disc.: Palomar Obs.
LoUTNOs, plutino?		 MPC · JPL
0 MBA-M 16.68 1.9 km multiple 1997–2021 11 Jun 2021 224 Disc.: Spacewatch
Alt.: 2000 LD6, 2010 VT145, 2014 UL212, 2017 KL33		 MPC · JPL
0 MBA-O 16.2 3.2 km multiple 1997–2021 11 Jan 2021 281 Disc.: Xinglong Stn.
Alt.: 2014 SC239		 MPC · JPL
0 MBA-O 16.0 3.5 km multiple 1997–2020 12 Dec 2020 178 Disc.: Spacewatch MPC · JPL
1 MBA-M 18.2 680 m multiple 1997–2014 29 Dec 2014 46 Disc.: Spacewatch MPC · JPL
0 MCA 18.7 540 m multiple 1997–2019 07 Apr 2019 55 Disc.: Spacewatch
Alt.: 2010 TN181		 MPC · JPL
7 APO 24.5 45 m single 3 days 12 Oct 1997 27 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.5 1.8 km multiple 1997–2020 20 Oct 2020 54 Disc.: Spacewatch
Added on 19 October 2020
Alt.: 2011 SY230		 MPC · JPL
0 MBA-M 18.09 1.0 km multiple 1997–2021 14 Apr 2021 93 Disc.: Spacewatch
Alt.: 2010 TT60		 MPC · JPL
0 MBA-M 17.29 1.0 km multiple 1997–2021 06 Aug 2021 104 Disc.: Spacewatch
Alt.: 2008 HR71		 MPC · JPL
0 MBA-I 18.0 750 m multiple 1997–2020 31 Jan 2020 64 Disc.: Spacewatch MPC · JPL
7 APO 24.6 43 m single 23 days 23 Oct 1997 17 Disc.: Spacewatch MPC · JPL
1 AMO 19.3 490 m multiple 1997–2020 05 Mar 2020 168 Disc.: Xinglong Stn. MPC · JPL
3 MBA-I 18.9 490 m multiple 1997–2015 06 Nov 2015 24 Disc.: Spacewatch MPC · JPL
0 MBA-I 18.6 570 m multiple 1997–2019 20 Aug 2019 95 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.5 1.3 km multiple 1997–2019 28 Nov 2019 93 Disc.: Spacewatch MPC · JPL
1 MBA-O 17.7 1.6 km multiple 1997–2019 08 Jan 2019 32 Disc.: No observations
Added on 17 June 2021		 MPC · JPL

U[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
6 APO 23.2 81 m single 21 days 12 Nov 1997 143 Disc.: LINEAR
AMO at MPC		 MPC · JPL
1 MBA-I 17.6 900 m multiple 1997–2020 18 Jan 2020 183 Disc.: Xinglong Stn.
Alt.: 2008 UW174		 MPC · JPL
0 MBA-O 17.31 1.9 km multiple 1997–2021 13 Aug 2021 73 Disc.: Spacewatch MPC · JPL
2 MCA 19.5 370 m multiple 1997–2021 06 Jan 2021 119 Disc.: NEAT/GEODSS
Alt.: 2010 TT19		 MPC · JPL
8 AMO 23.0 89 m single 14 days 12 Nov 1997 36 Disc.: LINEAR MPC · JPL
3 APO 25.2 32 m single 13 days 08 Nov 1997 29 Disc.: LINEAR MPC · JPL
1 MBA-I 18.6 570 m multiple 1997–2013 13 Feb 2013 21 Disc.: Spacewatch
Added on 21 August 2021		 MPC · JPL
0 MBA-I 18.1 710 m multiple 1997–2020 04 Jan 2020 110 Disc.: Spacewatch
Alt.: 2015 RQ97		 MPC · JPL
0 MBA-M 18.3 920 m multiple 1997–2018 05 Oct 2018 56 Disc.: Spacewatch
Alt.: 2014 TE2		 MPC · JPL
0 MBA-O 16.5 2.8 km multiple 1997–2021 12 Feb 2021 111 Disc.: Spacewatch
Alt.: 2011 GD89		 MPC · JPL
0 MBA-O 16.79 2.4 km multiple 1992–2021 02 May 2021 86 Disc.: Spacewatch MPC · JPL
0 MBA-I 17.9 780 m multiple 1997–2018 13 Nov 2018 61 Disc.: Spacewatch MPC · JPL
3 MBA-O 16.9 2.3 km multiple 1997–2014 25 Nov 2014 25 Disc.: Spacewatch
Alt.: 2014 WP303		 MPC · JPL
0 MBA-I 17.8 820 m multiple 1997–2020 10 Nov 2020 105 Disc.: Spacewatch
Added on 22 July 2020		 MPC · JPL
0 MBA-I 18.0 750 m multiple 1997–2020 20 May 2020 71 Disc.: Spacewatch
Alt.: 2014 WA246		 MPC · JPL
1 MBA-M 17.6 1.7 km multiple 1997–2020 17 Dec 2020 48 Disc.: Spacewatch MPC · JPL
0 MBA-O 17.2 2.0 km multiple 1997–2019 03 Dec 2019 54 Disc.: Spacewatch MPC · JPL
0 MBA-I 17.9 780 m multiple 1997–2020 14 Sep 2020 114 Disc.: Spacewatch MPC · JPL
2 MBA-M 18.5 840 m multiple 1997–2018 04 Oct 2018 26 Disc.: Spacewatch MPC · JPL
0 MBA-I 17.51 940 m multiple 1997–2021 11 May 2021 130 Disc.: Spacewatch MPC · JPL
0 MBA-O 16.65 2.6 km multiple 1997–2021 14 May 2021 119 Disc.: Anderson Mesa MPC · JPL
E TNO 8.5 88 km single 1 day 27 Oct 1997 4 Disc.: La Palma Obs.
LoUTNOs, cubewano (cold)		 MPC · JPL

V[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
8 AMO 22.2 130 m single 10 days 09 Nov 1997 74 Disc.: LINEAR MPC · JPL
2 AMO 23.3 78 m multiple 1997–2016 08 Nov 2016 140 Disc.: LINEAR MPC · JPL
8 APO 19.6 430 m single 15 days 23 Nov 1997 50 Disc.: LINEAR
Potentially hazardous object		 MPC · JPL
0 MBA-O 17.3 1.9 km multiple 1997–2018 14 Sep 2018 53 Disc.: Spacewatch MPC · JPL

W[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
0 MBA-O 16.8 2.4 km multiple 1997–2019 20 Dec 2019 59 Disc.: Spacewatch MPC · JPL
0 MBA-O 17.22 2.0 km multiple 1997–2021 13 Aug 2021 67 Disc.: Spacewatch
Added on 22 July 2020		 MPC · JPL
– MBA-O 17.0 2.2 km single 7 days 30 Nov 1997 9 Disc.: Spacewatch MPC · JPL
0 MBA-O 16.74 2.5 km multiple 1997–2021 13 Aug 2021 104 Disc.: Spacewatch MPC · JPL
0 MBA-M 17.2 2.0 km multiple 1997–2021 06 Jan 2021 102 Disc.: Spacewatch
Alt.: 2011 WX71, 2015 PG53		 MPC · JPL
1 MBA-M 17.6 1.3 km multiple 1997–2020 19 Apr 2020 29 Disc.: Spacewatch MPC · JPL
0 MBA-I 18.1 710 m multiple 1997–2021 18 Jan 2021 71 Disc.: Spacewatch
Alt.: 2008 SS18		 MPC · JPL
0 MBA-I 18.3 650 m multiple 1997–2019 31 Dec 2019 50 Disc.: Spacewatch
Added on 22 July 2020
Alt.: 2008 UA402		 MPC · JPL
0 MBA-M 17.80 1.2 km multiple 1997–2021 09 Apr 2021 68 Disc.: Spacewatch
Alt.: 2015 XO369		 MPC · JPL
1 APO 20.8 250 m multiple 1997–2020 18 Dec 2020 185 Disc.: LINEAR
Potentially hazardous object		 MPC · JPL
0 MBA-M 17.79 820 m multiple 1997–2021 11 Jun 2021 62 Disc.: Spacewatch MPC · JPL
0 MBA-O 17.1 2.1 km multiple 1997–2020 13 May 2020 59 Disc.: Spacewatch MPC · JPL
0 MBA-O 16.3 3.1 km multiple 1997–2020 20 May 2020 78 Disc.: Spacewatch MPC · JPL

X[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
1 AMO 19.4 470 m multiple 1997–2011 11 Jan 2011 116 Disc.: LINEAR MPC · JPL
0 APO 24.53 44 m multiple 1997–2021 02 Jan 2021 68 Disc.: LINEAR MPC · JPL
0 MBA-O 16.7 2.5 km multiple 1997–2020 23 Nov 2020 59 Disc.: Spacewatch MPC · JPL

Y[]

U Designation Class Observations Description and notes Ref
H D Opp. Arc Last Used
1 APO 24.0 56 m multiple 1997–2006 04 May 2006 65 Disc.: NEAT/GEODSS
Alt.: 2005 YM128		 MPC · JPL
8 AMO 20.1 340 m single 6 days 03 Jan 1998 34 Disc.: NEAT/GEODSS MPC · JPL
0 MBA-I 17.7 860 m multiple 1997–2021 15 Jan 2021 68 Disc.: Spacewatch MPC · JPL
0 MBA-O 16.03 3.5 km multiple 1997–2021 07 Apr 2021 398 Disc.: Spacewatch
Alt.: 2010 KR56		 MPC · JPL
1 MBA-O 16.6 2.7 km multiple 1997–2019 05 Jan 2019 36 Disc.: Spacewatch
Added on 21 August 2021
Alt.: 2014 AX40		 MPC · JPL

References[]

  1. ^ "Data Available from the Minor Planet Center – MPCORB.DAT". Minor Planet Center. 21 August 2021. (doc)
  2. ^ "NEOWISE Diameters and Albedos – V2.0". PDS Small Bodies Node. 2019. Retrieved 26 August 2021.
  3. ^ Johnston, Wm. Robert (18 August 2020). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 26 August 2021.
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