List of unnumbered minor planets: 2003 H–L

This is a partial list of unnumbered minor planets for principal provisional designations assigned between 16 April and 15 June 2003. As of November 2025, a total of 130 bodies remain unnumbered for this period.[1][2][3][4] Objects for this year are listed on the following pages: A–E · F–G · H–L · M–R · Si · Sii · Siii · Siv · T · Ui · Uii · Uiii · Uiv · V · Wi · Wii and X–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

H

[edit]
U Designation Class Physical Observations Description and notes Ref
H D Opp. Arc Last Used
0 2003 HM ATE 21.8 160 m multiple 2003–2020 30 Jan 2020 69 Disc.: LINEAR
Potentially hazardous object
MPC · JPL
0 2003 HN APO 19.9 370 m multiple 2003–2006 28 Oct 2006 340 Disc.: AMOS MPC · JPL
0 2003 HZ MCA 17.61 1.7 km multiple 2003–2019 10 Jul 2019 145 Disc.: LINEAR
Alt.: 2019 NE4
MPC · JPL
1 2003 HC2 HUN 18.7 540 m multiple 2003–2020 22 Nov 2020 35 Disc.: Spacewatch
Added on 17 January 2021
MPC · JPL
1 2003 HE2 MBA-I 20.2 230 m multiple 2003-2022 24 Jun 2022 29 Disc.: Spacewatch MPC · JPL
0 2003 HD5 MBA-I 19.1 450 m multiple 2003–2020 23 Jan 2020 42 Disc.: Spacewatch
Alt.: 2017 HE65
MPC · JPL
5 2003 HW10 APO 27.0 14 m single 3 days 28 Apr 2003 94 Disc.: LPL/Spacewatch II MPC · JPL
0 2003 HN16 APO 22.15 110 m multiple 2003–2022 19 May 2022 85 Disc.: LINEAR
AMO at MPC
MPC · JPL
0 2003 HX17 MBA-I 18.4 620 m multiple 2003–2020 17 Jun 2020 38 Disc.: Spacewatch
Added on 22 July 2020
MPC · JPL
0 2003 HJ19 MBA-M 17.6 1.7 km multiple 2003–2021 14 Jan 2021 36 Disc.: Spacewatch MPC · JPL
0 2003 HK19 MBA-I 19.2 430 m multiple 2003–2020 27 Apr 2020 24 Disc.: Spacewatch
Added on 19 October 2020
MPC · JPL
1 2003 HR23 MBA-M 18.2 960 m multiple 2003–2020 11 Aug 2020 47 Disc.: Spacewatch
Added on 22 July 2020
MPC · JPL
0 2003 HV23 MBA-O 16.91 2.3 km multiple 2003–2021 07 Nov 2021 152 Disc.: LPL/Spacewatch II
Alt.: 2009 KT6, 2010 NE113, 2016 UG168
MPC · JPL
0 2003 HY23 MBA-O 16.8 2.4 km multiple 2003–2020 23 Apr 2020 42 Disc.: Spacewatch
Added on 22 July 2020
MPC · JPL
0 2003 HP24 MBA-I 18.4 620 m multiple 2003–2019 05 Nov 2019 35 Disc.: LPL/Spacewatch II
Added on 21 August 2021
Alt.: 2015 RB336
MPC · JPL
3 2003 HO32 MCA 22.1 110 m multiple 2003–2006 04 May 2006 41 Disc.: Spacewatch
Alt.: 2006 JY5
MPC · JPL
0 2003 HP32 APO 19.6 430 m multiple 2003–2012 22 May 2012 64 Disc.: Spacewatch MPC · JPL
6 2003 HT42 ATE 24.8 39 m single 12 days 11 May 2003 110 Disc.: LINEAR MPC · JPL
1 2003 HL55 MBA-M 17.4 1.8 km multiple 2003–2021 17 Jan 2021 25 Disc.: CINEOS MPC · JPL
3 2003 HX56 TNO 7.1 158 km multiple 2003–2019 06 Jun 2019 23 Disc.: Mauna Kea Obs.
LoUTNOs, other TNO, BR-mag: 1.01
MPC · JPL
3 2003 HZ56 TNO 7.5 105 km multiple 2003–2013 14 May 2013 17 Disc.: Mauna Kea Obs.
LoUTNOs, cubewano (cold)
MPC · JPL
4 2003 HA57 TNO 8.1 113 km multiple 2003–2019 07 May 2019 17 Disc.: Mauna Kea Obs.
LoUTNOs, plutino
MPC · JPL
4 2003 HD57 TNO 7.9 124 km multiple 2003–2014 01 May 2014 23 Disc.: Mauna Kea Obs.
LoUTNOs, plutino
MPC · JPL
4 2003 HE57 TNO 7.3 178 km multiple 2003–2015 26 Apr 2015 25 Disc.: Mauna Kea Obs.
LoUTNOs, cubewano (hot)
MPC · JPL
3 2003 HF57 TNO 8.6 90 km multiple 2003–2017 29 May 2017 27 Disc.: Mauna Kea Obs.
LoUTNOs, plutino
MPC · JPL
4 2003 HH57 TNO 7.4 110 km multiple 2003–2013 14 May 2013 19 Disc.: Mauna Kea Obs.
LoUTNOs, cubewano (cold)
MPC · JPL
E 2003 HJ57 TNO 8.3 103 km single 1 day 27 Apr 2003 4 Disc.: Mauna Kea Obs.
LoUTNOs, plutino?
MPC · JPL
9 2003 HK57 TNO 8.0 86 km single 1 day 27 Apr 2003 4 Disc.: Mauna Kea Obs.
LoUTNOs, cubewano?
MPC · JPL
9 2003 HL57 TNO 6.3 189 km single 1 day 27 Apr 2003 7 Disc.: Mauna Kea Obs.
LoUTNOs, cubewano?
MPC · JPL
3 2003 HM57 TNO 8.4 116 km multiple 2003–2017 21 Jul 2017 99 Disc.: Mauna Kea Obs.
LoUTNOs, centaur
MPC · JPL
9 2003 HN57 TNO 7.5 109 km single 34 days 30 May 2003 7 Disc.: Mauna Kea Obs.
LoUTNOs, cubewano?
MPC · JPL
3 2003 HO57 TNO 8.0 83 km multiple 2003–2019 05 Apr 2019 15 Disc.: Mauna Kea Obs.
LoUTNOs, cubewano (cold)
MPC · JPL
9 2003 HP57 TNO 6.4 218 km single 1 day 27 Apr 2003 4 Disc.: Mauna Kea Obs.
LoUTNOs, other TNO
MPC · JPL
2 2003 HD61 MBA-M 18.70 540 m multiple 2003–2020 17 Aug 2020 53 Disc.: Spacewatch MPC · JPL
0 2003 HC62 MBA-M 17.69 1.6 km multiple 2003–2021 03 Apr 2021 51 Disc.: Spacewatch MPC · JPL
0 2003 HD62 MBA-I 17.9 780 m multiple 2003–2018 14 Jun 2018 32 Disc.: SDSS MPC · JPL
0 2003 HH62 MBA-I 18.6 570 m multiple 2003–2017 20 Apr 2017 36 Disc.: Spacewatch MPC · JPL
0 2003 HN62 MBA-I 19.0 470 m multiple 2003–2020 14 Sep 2020 40 Disc.: Spacewatch MPC · JPL
0 2003 HS62 HUN 18.8 520 m multiple 2003–2019 08 Jan 2019 24 Disc.: SDSS MPC · JPL
0 2003 HU62 MBA-M 17.8 1.2 km multiple 2003–2020 16 Aug 2020 87 Disc.: LPL/Spacewatch II MPC · JPL
0 2003 HH64 HUN 19.29 410 m multiple 2003–2021 15 Apr 2021 25 Disc.: SDSS MPC · JPL
0 2003 HU64 MBA-I 19.25 420 m multiple 2003–2021 09 Jul 2021 43 Disc.: Spacewatch MPC · JPL
0 2003 HB65 MBA-I 18.6 570 m multiple 2003–2019 23 Oct 2019 40 Disc.: Spacewatch MPC · JPL
0 2003 HR65 MBA-M 18.5 840 m multiple 2003–2020 28 Apr 2020 44 Disc.: Spacewatch
Added on 22 July 2020
MPC · JPL
0 2003 HU65 MBA-I 19.03 460 m multiple 2003–2021 06 Oct 2021 42 Disc.: Spacewatch
Added on 22 July 2020
MPC · JPL
0 2003 HX65 MBA-I 18.6 570 m multiple 2003–2020 22 Aug 2020 49 Disc.: Spacewatch
Added on 19 October 2020
MPC · JPL
0 2003 HA66 HUN 19.62 350 m multiple 2003–2021 03 Dec 2021 32 Disc.: SDSS
Added on 9 March 2021
MPC · JPL
1 2003 HC66 MBA-M 19.02 870 m multiple 2003–2021 12 Jun 2021 34 Disc.: Spacewatch
Added on 17 June 2021
MPC · JPL
1 2003 HE66 MBA-O 17.92 1.6 km multiple 2003–2014 24 Jun 2014 42 Disc.: SDSS
Added on 24 December 2021
MPC · JPL

J

[edit]
U Designation Class Physical Observations Description and notes Ref
H D Opp. Arc Last Used
0 2003 JB2 MBA-M 18.11 1.0 km multiple 2003–2021 04 Aug 2021 36 Disc.: LPL/Spacewatch II MPC · JPL
8 2003 JX2 APO 26.4 19 m single 2 days 03 May 2003 31 Disc.: LINEAR MPC · JPL
8 2003 JY2 APO 24.6 43 m single 4 days 06 May 2003 35 Disc.: LINEAR MPC · JPL
3 2003 JB4 MBA-M 17.88 790 m multiple 2003–2021 30 Oct 2021 39 Disc.: KLENOT MPC · JPL
7 2003 JG4 AMO 22.9 93 m single 29 days 01 Jun 2003 36 Disc.: Spacewatch MPC · JPL
6 2003 JD11 APO 24.3 49 m single 6 days 11 May 2003 97 Disc.: LINEAR MPC · JPL
0 2003 JD13 AMO 20.00 360 m multiple 2003–2021 01 Nov 2021 161 Disc.: LINEAR MPC · JPL
3 2003 JF13 MCA 19.9 310 m multiple 2003–2007 26 Apr 2007 42 Disc.: Spacewatch MPC · JPL
7 2003 JO14 APO 25.2 32 m single 2 days 11 May 2003 41 Disc.: LINEAR MPC · JPL
6 2003 JP14 APO 22.3 120 m single 30 days 08 Jun 2003 51 Disc.: LINEAR MPC · JPL
0 2003 JV14 APO 21.41 180 m multiple 2003-2023 15 Oct 2023 92 Disc.: Spacewatch MPC · JPL
0 2003 JP15 MBA-I 18.8 520 m multiple 2003–2020 22 Oct 2020 48 Disc.: LPL/Spacewatch II
Added on 17 January 2021
Alt.: 2007 UH74
MPC · JPL
1 2003 JA17 MCA 17.94 940 m multiple 2003-2024 29 Sep 2024 62 Disc.: LINEAR
Alt.: 2024 RO16
MPC · JPL
0 2003 JC17 APO 17.88 940 m multiple 2003–2021 11 Jul 2021 122 Disc.: LINEAR
NEO larger than 1 kilometer
MPC · JPL
5 2003 JD17 AMO 21.1 210 m single 109 days 29 Aug 2003 40 Disc.: LINEAR MPC · JPL
1 2003 JC20 MBA-M 18.1 710 m multiple 2003–2020 13 Sep 2020 55 Disc.: LPL/Spacewatch II MPC · JPL
0 2003 JY20 MBA-M 18.1 1.0 km multiple 2003–2020 26 Apr 2020 48 Disc.: Spacewatch
Added on 22 July 2020
MPC · JPL
0 2003 JE21 MBA-I 19.00 470 m multiple 2003–2021 01 May 2021 44 Disc.: Spacewatch
Added on 11 May 2021
MPC · JPL
0 2003 JG21 MBA-I 18.7 540 m multiple 2003–2021 12 Jun 2021 93 Disc.: LPL/Spacewatch II
Added on 17 June 2021
MPC · JPL
0 2003 JH21 MBA-I 18.4 620 m multiple 2003–2018 11 Apr 2018 24 Disc.: Spacewatch
Added on 21 August 2021
MPC · JPL

K

[edit]
U Designation Class Physical Observations Description and notes Ref
H D Opp. Arc Last Used
2003 KT2 MBA-M 18.9 920 m single 3 days 25 May 2003 16 Disc.: VATT MPC · JPL
2003 KH3 MBA-I 19.6 360 m single 3 days 26 May 2003 9 Disc.: LPL/Spacewatch II MPC · JPL
5 2003 KF4 APO 23.3 78 m single 15 days 08 Jun 2003 107 Disc.: Desert Eagle Obs.
AMO at MPC
MPC · JPL
3 2003 KT5 MBA-M 18.8 730 m multiple 2003–2020 27 Apr 2020 26 Disc.: Spacewatch
Added on 22 July 2020
MPC · JPL
1 2003 KW5 MBA-M 19.09 450 m multiple 2003–2020 20 Oct 2020 45 Disc.: Spacewatch
Added on 19 October 2020
MPC · JPL
0 2003 KY5 MBA-I 18.4 620 m multiple 2003–2019 03 Oct 2019 42 Disc.: Spacewatch
Alt.: 2018 FB10
MPC · JPL
1 2003 KY7 MBA-M 18.73 700 m multiple 2003–2025 21 Jun 2025 73 Disc.: Spacewatch
Added on 5 November 2021
Alt.: 2021 QF45
MPC · JPL
0 2003 KQ18 AMO 20.9 230 m multiple 2003–2010 12 Jun 2010 108 Disc.: LINEAR MPC · JPL
3 2003 KO20 TNO 6.6 159 km multiple 2003–2016 29 May 2016 12 Disc.: Cerro Tololo
LoUTNOs, cubewano (cold)
MPC · JPL
E 2003 KP20 TNO 7.2 125 km single 39 days 08 Jul 2003 5 Disc.: Cerro Tololo
LoUTNOs, cubewano?
MPC · JPL
E 2003 KQ20 CEN 13.1 13 km single 1 day 31 May 2003 3 Disc.: Cerro Tololo MPC · JPL
0 2003 KB24 MBA-I 18.9 490 m multiple 2003–2021 13 Apr 2021 38 Disc.: Cerro Tololo
Added on 17 June 2021
Alt.: 2021 EL20
MPC · JPL
0 2003 KG24 MBA-I 18.9 490 m multiple 2003–2020 16 Dec 2020 26 Disc.: Cerro Tololo
Added on 9 March 2021
Alt.: 2019 JC20
MPC · JPL
1 2003 KB25 MBA-O 17.39 1.9 km multiple 2003–2021 14 Jul 2021 43 Disc.: Cerro Tololo
Added on 21 August 2021
Alt.: 2015 KM73
MPC · JPL
3 2003 KS25 MBA-O 17.5 1.8 km multiple 2003–2020 23 Oct 2020 13 Disc.: Cerro Tololo
Added on 30 September 2021
MPC · JPL
1 2003 KV25 MBA-O 17.80 1.5 km multiple 2003–2022 27 Jan 2022 47 Disc.: Cerro Tololo
Added on 17 January 2021
Alt.: 2017 BM161
MPC · JPL
2 2003 KY25 MBA-I 19.2 430 m multiple 2003–2021 28 Sep 2021 24 Disc.: Cerro Tololo
Added on 24 December 2021
MPC · JPL
0 2003 KG26 MBA-M 18.1 1.3 km multiple 2003–2020 25 May 2020 30 Disc.: Cerro Tololo
Added on 17 January 2021
Alt.: 2004 VU100
MPC · JPL
0 2003 KB27 MBA-M 18.31 920 m multiple 2003–2021 30 Sep 2021 25 Disc.: Cerro Tololo
Alt.: 2015 FZ196
MPC · JPL
0 2003 KG27 MBA-O 17.24 2.0 km multiple 2003–2021 26 Nov 2021 37 Disc.: Cerro Tololo
Added on 5 November 2021
Alt.: 2019 KJ49
MPC · JPL
1 2003 KP27 MBA-M 18.55 820 m multiple 2003–2021 24 Oct 2021 71 Disc.: Cerro Tololo MPC · JPL
0 2003 KQ31 MBA-I 18.3 650 m multiple 2003–2020 18 Aug 2020 66 Disc.: Spacewatch
Added on 22 July 2020
MPC · JPL
0 2003 KY32 MCA 18.8 520 m multiple 2003–2019 25 Aug 2019 22 Disc.: Spacewatch MPC · JPL
0 2003 KP38 MBA-I 19.1 450 m multiple 2003–2020 22 Jun 2020 35 Disc.: Cerro Tololo MPC · JPL
1 2003 KQ38 MBA-M 17.7 1.6 km multiple 2003–2017 23 Sep 2017 35 Disc.: Spacewatch MPC · JPL
0 2003 KS38 HUN 18.7 540 m multiple 2003–2019 09 Jan 2019 27 Disc.: LPL/Spacewatch II MPC · JPL
1 2003 KJ39 MBA-I 18.0 750 m multiple 2003–2019 02 Nov 2019 34 Disc.: Spacewatch MPC · JPL
0 2003 KL39 MBA-O 17.2 2.0 km multiple 2003–2019 07 Apr 2019 33 Disc.: Cerro Tololo MPC · JPL
0 2003 KO39 HUN 18.9 490 m multiple 2003–2019 06 Mar 2019 31 Disc.: SDSS MPC · JPL
0 2003 KP39 MBA-I 18.5 590 m multiple 2003–2019 23 Oct 2019 26 Disc.: Spacewatch MPC · JPL
1 2003 KQ39 MBA-I 18.4 620 m multiple 2003–2016 24 Dec 2016 35 Disc.: Cerro Tololo MPC · JPL
0 2003 KV39 MBA-I 19.32 410 m multiple 2003–2021 29 Oct 2021 60 Disc.: Cerro Tololo MPC · JPL
0 2003 KW39 MBA-M 18.2 680 m multiple 2003–2019 08 Feb 2019 25 Disc.: Cerro Tololo MPC · JPL
0 2003 KD40 MBA-M 18.4 880 m multiple 2003–2020 22 Apr 2020 35 Disc.: Cerro Tololo MPC · JPL
0 2003 KE40 MBA-M 17.7 1.6 km multiple 2003–2019 19 Dec 2019 63 Disc.: Cerro Tololo MPC · JPL
0 2003 KL40 MBA-O 17.27 2.0 km multiple 2003–2021 05 Jul 2021 36 Disc.: Spacewatch
Added on 13 September 2020
MPC · JPL

L

[edit]
U Designation Class Physical Observations Description and notes Ref
H D Opp. Arc Last Used
6 2003 LH ATE 25.2 32 m single 59 days 31 Jul 2003 50 Disc.: LINEAR MPC · JPL
6 2003 LW1 AMO 23.2 81 m single 12 days 15 Jun 2003 76 Disc.: LINEAR MPC · JPL
0 2003 LW2 APO 25.8 25 m multiple 2003–2021 01 Jun 2021 70 Disc.: LINEAR MPC · JPL
2 2003 LR3 MCA 22.08 94 m multiple 2003-2021 05 Jul 2021 29 Disc.: Spacewatch MPC · JPL
0 2003 LE5 MBA-I 19.01 470 m multiple 2003–2021 31 Oct 2021 31 Disc.: Spacewatch MPC · JPL
0 2003 LE6 MBA-I 18.7 540 m multiple 2003–2021 11 Jun 2021 45 Disc.: Table Mountain Obs.
Alt.: 2010 NT144
MPC · JPL
0 2003 LK6 MBA-O 16.30 3.1 km multiple 2003–2021 01 Dec 2021 51 Disc.: Siding Spring Obs.
Added on 13 September 2020
MPC · JPL
0 2003 LN6 ATE 24.6 43 m multiple 2003–2015 24 Feb 2015 97 Disc.: LINEAR MPC · JPL
E 2003 LZ6 TNO 6.5 172 km single 1 day 02 Jun 2003 3 Disc.: Cerro Tololo
LoUTNOs, cubewano?
MPC · JPL
2 2003 LA7 TNO 6.5 181 km multiple 2003–2008 12 Mar 2008 18 Disc.: Cerro Tololo
LoUTNOs, res · 1:4
MPC · JPL
E 2003 LC7 TNO 6.2 197 km single 37 days 08 Jul 2003 5 Disc.: Cerro Tololo
LoUTNOs, cubewano?
MPC · JPL
E 2003 LD7 TNO 6.9 143 km single 36 days 07 Jul 2003 5 Disc.: Cerro Tololo
LoUTNOs, cubewano?
MPC · JPL
E 2003 LE7 TNO 7.6 143 km single 1 day 02 Jun 2003 3 Disc.: Cerro Tololo
LoUTNOs, plutino?
MPC · JPL
E 2003 LF7 TNO 7.9 124 km single 37 days 08 Jul 2003 6 Disc.: Cerro Tololo
LoUTNOs, plutino?
MPC · JPL
E 2003 LH7 CEN 12.5 18 km single 1 day 02 Jun 2003 3 Disc.: Cerro Tololo MPC · JPL
0 2003 LY7 MBA-M 18.3 1.2 km multiple 2003–2021 08 Jun 2021 31 Disc.: Cerro Tololo MPC · JPL
0 2003 LC9 MBA-I 19.1 450 m multiple 2003–2018 18 Aug 2018 23 Disc.: Cerro Tololo MPC · JPL
3 2003 LD9 TNO 6.8 182 km multiple 2003–2019 06 Jun 2019 15 Disc.: Cerro Tololo
LoUTNOs, other TNO
MPC · JPL
0 2003 LD10 MBA-I 18.3 650 m multiple 2003–2018 11 Jul 2018 41 Disc.: Spacewatch MPC · JPL
0 2003 LF10 MBA-M 18.3 920 m multiple 2003–2020 24 Jun 2020 34 Disc.: Cerro Tololo MPC · JPL
1 2003 LT10 MBA-M 18.4 620 m multiple 2003–2020 12 Sep 2020 56 Disc.: Spacewatch MPC · JPL
1 2003 LU10 MBA-M 18.1 710 m multiple 2003–2019 03 Jul 2019 43 Disc.: Cerro Tololo MPC · JPL
1 2003 LJ11 MBA-I 18.3 650 m multiple 2003–2019 06 Sep 2019 33 Disc.: Cerro Tololo MPC · JPL
1 2003 LK11 MBA-I 18.1 710 m multiple 2003–2019 29 Sep 2019 35 Disc.: LPL/Spacewatch II MPC · JPL
0 2003 LM11 MBA-M 17.3 1.5 km multiple 2003–2020 16 Jun 2020 37 Disc.: LPL/Spacewatch II MPC · JPL
0 2003 LV11 MBA-I 18.5 590 m multiple 2003–2019 29 Sep 2019 32 Disc.: Spacewatch MPC · JPL
2 2003 LZ11 MBA-M 18.3 650 m multiple 2003–2020 10 Sep 2020 35 Disc.: SDSS
Added on 19 October 2020
MPC · JPL

References

[edit]
  1. ^ "Data Available from the Minor Planet Center – MPCORB.DAT". Minor Planet Center. 29 January 2022. (doc)
  2. ^ "NEOWISE Diameters and Albedos – V2.0". PDS Small Bodies Node. 2019. Retrieved 31 January 2022.
  3. ^ Johnston, Wm. Robert (2 January 2022). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 31 January 2022.
  4. ^ "List Of Jupiter Trojans". Minor Planet Center. 26 January 2021. Retrieved 31 January 2022.