# List of unnumbered minor planets: 2003 U (290–379)

This is a partial list of unnumbered minor planets for principal provisional designations assigned during 16–31 October 2003. Since this period yielded a high number of provisional discoveries, it is further split into several standalone pages. As of February 2022, a total of 478 bodies remain unnumbered for this period. Objects for this year are listed on the following pages: A–E · F–G · H–L · M–R · S$_i$ · S$_{ii}$ · S$_{iii}$ · S$_{iv}$ · T · U$_i$ · U$_{ii}$ · U$_{iii}$ · U$_{iv}$ · V · W$_i$ · W$_{ii}$ 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 | | | |

## U

| U | Designation | Class | Physical | Physical | Observations | Observations | Observations | Observations | Description and notes | Ref |
| U | Designation | Class | H | D | Opp. | Arc | Last | Used | Description and notes | Ref |
| 0 | 2003 UC291 | MBA-I | 18.1 | 710 m | multiple | 1996–2020 | 14 Jul 2020 | 105 | Alt.: 1996 VU21, 2015 AR200 | MPC · JPL |
| 0 | 2003 UM291 | MBA-O | 16.8 | 2.4 km | multiple | 2003–2020 | 19 Jan 2020 | 84 | — | MPC · JPL |
| E | 2003 US291 | TNO | 7.1 | 158 km | single | 33 days | 24 Nov 2003 | 6 | LoUTNOs, other TNO | MPC · JPL |
| 3 | 2003 UT291 | TNO | 6.4 | 174 km | multiple | 2003–2013 | 07 Oct 2013 | 15 | LoUTNOs, cubewano (cold) | MPC · JPL |
| 2 | 2003 UV291 | TNO | 7.3 | 115 km | multiple | 2003–2017 | 23 Sep 2017 | 42 | LoUTNOs, cubewano (cold) | MPC · JPL |
| E | 2003 UW291 | TNO | 6.3 | 189 km | single | 28 days | 20 Nov 2003 | 4 | LoUTNOs, cubewano? | MPC · JPL |
| E | 2003 UX291 | TNO | 7.0 | 137 km | single | 28 days | 20 Nov 2003 | 4 | LoUTNOs, cubewano? | MPC · JPL |
| 4 | 2003 UY291 | TNO | 7.21 | 120 km | multiple | 2003–2021 | 11 Jan 2021 | 17 | LoUTNOs, cubewano (cold), BR-mag: 1.39; taxonomy: BB | MPC · JPL |
| 4 | 2003 UZ291 | TNO | 7.09 | 196 km | multiple | 2003–2021 | 05 Nov 2021 | 23 | LoUTNOs, cubewano (hot) | MPC · JPL |
| E | 2003 UA292 | TNO | 6.1 | 207 km | single | 29 days | 20 Nov 2003 | 4 | LoUTNOs, cubewano? | MPC · JPL |
| 3 | 2003 UB292 | TNO | 5.88 | 277 km | multiple | 2003–2021 | 03 Oct 2021 | 30 | LoUTNOs, other TNO | MPC · JPL |
| E | 2003 UC292 | TNO | 6.9 | 143 km | single | 28 days | 20 Nov 2003 | 4 | LoUTNOs, cubewano? | MPC · JPL |
| E | 2003 UD292 | TNO | 6.6 | 164 km | single | 29 days | 21 Nov 2003 | 4 | LoUTNOs, cubewano? | MPC · JPL |
| E | 2003 UE292 | TNO | 6.7 | 190 km | single | 29 days | 21 Nov 2003 | 4 | LoUTNOs, other TNO | MPC · JPL |
| E | 2003 UF292 | TNO | 7.3 | 144 km | single | 28 days | 20 Nov 2003 | 4 | LoUTNOs, other TNO | MPC · JPL |
| – | 2003 UG292 | TNO | 7.0 | 204 km | single | 59 days | 21 Dec 2003 | 7 | LoUTNOs, cubewano (hot) | MPC · JPL |
| E | 2003 UH292 | TNO | 7.7 | 99 km | single | 27 days | 20 Nov 2003 | 4 | LoUTNOs, cubewano? | MPC · JPL |
| E | 2003 UK292 | TNO | 7.2 | 125 km | single | 28 days | 21 Nov 2003 | 4 | LoUTNOs, cubewano? | MPC · JPL |
| E | 2003 UL292 | TNO | 7.3 | 119 km | single | 28 days | 21 Nov 2003 | 4 | LoUTNOs, cubewano? | MPC · JPL |
| E | 2003 UM292 | TNO | 7.0 | 166 km | single | 28 days | 21 Nov 2003 | 4 | LoUTNOs, other TNO | MPC · JPL |
| 3 | 2003 UN292 | TNO | 7.5 | 105 km | multiple | 2003–2016 | 04 Feb 2016 | 16 | LoUTNOs, cubewano (cold) | MPC · JPL |
| E | 2003 UO292 | TNO | 7.4 | 157 km | single | 30 days | 21 Nov 2003 | 4 | LoUTNOs, plutino? | MPC · JPL |
| 2 | 2003 UP292 | TNO | 7.29 | 126 km | multiple | 2003–2021 | 11 Jan 2021 | 102 | LoUTNOs, twotino | MPC · JPL |
| E | 2003 UQ292 | TNO | 7.0 | 188 km | single | 32 days | 24 Nov 2003 | 4 | LoUTNOs, plutino? | MPC · JPL |
| 1 | 2003 UT292 | TNO | 7.1 | 186 km | multiple | 2003–2020 | 23 Mar 2020 | 85 | LoUTNOs, plutino, albedo: 0.067 | MPC · JPL |
| E | 2003 UU292 | TNO | 8.2 | 108 km | single | 28 days | 21 Nov 2003 | 4 | LoUTNOs, plutino? | MPC · JPL |
| 4 | 2003 UV292 | TNO | 7.39 | 157 km | multiple | 2003–2021 | 01 Dec 2021 | 21 | LoUTNOs, plutino | MPC · JPL |
| E | 2003 UX292 | TNO | 6.6 | 164 km | single | 28 days | 20 Nov 2003 | 4 | LoUTNOs, cubewano? | MPC · JPL |
| E | 2003 UY292 | CEN | 10.2 | 51 km | single | 29 days | 21 Nov 2003 | 4 | — | MPC · JPL |
| E | 2003 UZ292 | TNO | 7.7 | 120 km | single | 28 days | 21 Nov 2003 | 4 | LoUTNOs, other TNO | MPC · JPL |
| 2 | 2003 UK293 | TNO | 7.4 | 110 km | multiple | 2003–2017 | 16 Dec 2017 | 44 | LoUTNOs, cubewano (cold) | MPC · JPL |
| 0 | 2003 UQ294 | MBA-M | 17.6 | 1.3 km | multiple | 2003–2020 | 11 Sep 2020 | 51 | Disc.: Spacewatch Added on 19 October 2020 | MPC · JPL |
| 0 | 2003 UT294 | MBA-O | 16.8 | 2.4 km | multiple | 1997–2020 | 24 Oct 2020 | 50 | Disc.: Spacewatch Added on 17 January 2021 Alt.: 1997 SL29 | MPC · JPL |
| 1 | 2003 UU294 | MBA-I | 19.1 | 450 m | multiple | 2003–2020 | 23 Nov 2020 | 26 | — | MPC · JPL |
| 0 | 2003 UX294 | MBA-O | 16.44 | 2.9 km | multiple | 2003–2021 | 14 Apr 2021 | 107 | Alt.: 2011 GM7, 2015 AE22 | MPC · JPL |
| 0 | 2003 UG295 | MBA-I | 17.8 | 820 m | multiple | 1999–2020 | 16 Mar 2020 | 95 | Alt.: 2016 BY25 | MPC · JPL |
| 3 | 2003 UV295 | MBA-I | 19.6 | 360 m | multiple | 2003–2017 | 23 Sep 2017 | 19 | — | MPC · JPL |
| 1 | 2003 UX295 | MBA-M | 19.2 | 610 m | multiple | 2003–2020 | 12 Dec 2020 | 56 | Disc.: Spacewatch Added on 17 January 2021 | MPC · JPL |
| 0 | 2003 UY295 | MBA-M | 17.42 | 1.4 km | multiple | 2003–2022 | 27 Jan 2022 | 103 | Alt.: 2007 TX408 | MPC · JPL |
| 0 | 2003 UF296 | MBA-M | 17.7 | 1.2 km | multiple | 2003–2020 | 05 Nov 2020 | 84 | Alt.: 2016 US52 | MPC · JPL |
| 0 | 2003 UP296 | MBA-O | 17.15 | 2.1 km | multiple | 2003–2021 | 30 Dec 2021 | 48 | Disc.: Spacewatch Added on 17 June 2021 | MPC · JPL |
| 0 | 2003 UG297 | MBA-I | 18.1 | 710 m | multiple | 2003–2019 | 24 Nov 2019 | 44 | — | MPC · JPL |
| 0 | 2003 UJ297 | HIL | 15.6 | 4.2 km | multiple | 2003–2021 | 15 Jan 2021 | 102 | — | MPC · JPL |
| 0 | 2003 UT297 | MBA-O | 15.97 | 3.6 km | multiple | 2003–2022 | 27 Jan 2022 | 156 | — | MPC · JPL |
| 3 | 2003 UV297 | MBA-I | 18.9 | 490 m | multiple | 2003–2020 | 14 Dec 2020 | 24 | Disc.: Spacewatch Added on 17 June 2021 | MPC · JPL |
| 0 | 2003 UZ297 | HIL | 16.3 | 3.1 km | multiple | 2003–2020 | 19 Jan 2020 | 74 | — | MPC · JPL |
| 1 | 2003 UJ298 | MBA-I | 19.16 | 440 m | multiple | 2003–2021 | 30 Oct 2021 | 37 | Disc.: Spacewatch Added on 5 November 2021 Alt.: 2014 WB225 | MPC · JPL |
| 1 | 2003 UB299 | MBA-I | 19.33 | 400 m | multiple | 2003–2022 | 07 Jan 2022 | 38 | — | MPC · JPL |
| 0 | 2003 UE299 | MBA-O | 16.4 | 2.9 km | multiple | 2003–2021 | 03 Jan 2021 | 114 | Alt.: 2014 WY163 | MPC · JPL |
| 0 | 2003 UE300 | MBA-I | 18.9 | 490 m | multiple | 1992–2018 | 13 Dec 2018 | 46 | Alt.: 2014 QH239 | MPC · JPL |
| 1 | 2003 UN300 | MBA-M | 18.1 | 1.0 km | multiple | 2003–2020 | 12 Sep 2020 | 39 | — | MPC · JPL |
| 0 | 2003 UB301 | MBA-I | 18.27 | 660 m | multiple | 2003–2021 | 28 Nov 2021 | 105 | Alt.: 2010 RF57, 2017 ON3 | MPC · JPL |
| 0 | 2003 UH301 | MBA-M | 17.50 | 1.8 km | multiple | 2003–2021 | 07 Nov 2021 | 80 | Disc.: Spacewatch Added on 30 September 2021 Alt.: 2012 TQ300 | MPC · JPL |
| 1 | 2003 UR301 | MBA-M | 18.76 | 990 m | multiple | 2003–2021 | 29 Nov 2021 | 67 | Disc.: Spacewatch Added on 5 November 2021 | MPC · JPL |
| 0 | 2003 UU301 | MBA-I | 18.91 | 490 m | multiple | 2003–2021 | 08 Dec 2021 | 41 | — | MPC · JPL |
| 1 | 2003 UA302 | MBA-I | 18.6 | 570 m | multiple | 1999–2020 | 16 Feb 2020 | 47 | — | MPC · JPL |
| 0 | 2003 UE302 | MBA-M | 17.94 | 1.1 km | multiple | 2003–2022 | 25 Jan 2022 | 200 | — | MPC · JPL |
| 1 | 2003 UF302 | MBA-M | 18.3 | 1.2 km | multiple | 2003–2019 | 28 Feb 2019 | 35 | — | MPC · JPL |
| 0 | 2003 UH302 | MBA-M | 17.8 | 820 m | multiple | 2003–2021 | 04 Jan 2021 | 38 | — | MPC · JPL |
| 0 | 2003 UM302 | MBA-M | 17.5 | 1.3 km | multiple | 2003–2021 | 14 Jan 2021 | 168 | — | MPC · JPL |
| 3 | 2003 UW302 | MBA-O | 18.4 | 1.2 km | multiple | 2003–2019 | 01 Nov 2019 | 22 | Disc.: Spacewatch Added on 17 June 2021 Alt.: 2019 QD66 | MPC · JPL |
| 0 | 2003 UY302 | MBA-M | 17.9 | 780 m | multiple | 2003–2020 | 16 Dec 2020 | 46 | Disc.: Spacewatch Added on 9 March 2021 | MPC · JPL |
| 1 | 2003 UC303 | MBA-M | 18.3 | 650 m | multiple | 2003–2019 | 02 Oct 2019 | 64 | Disc.: Spacewatch Added on 22 July 2020 Alt.: 2015 SN12 | MPC · JPL |
| 1 | 2003 UD303 | MBA-O | 17.9 | 1.5 km | multiple | 2003–2020 | 14 Nov 2020 | 42 | Alt.: 2014 SW6 | MPC · JPL |
| 0 | 2003 UH303 | MBA-M | 17.04 | 2.2 km | multiple | 2003–2021 | 05 Jul 2021 | 117 | — | MPC · JPL |
| 0 | 2003 UV303 | MBA-O | 17.5 | 1.8 km | multiple | 2003–2021 | 07 Feb 2021 | 46 | Disc.: Spacewatch Added on 11 May 2021 Alt.: 2014 XA15 | MPC · JPL |
| 4 | 2003 UF304 | MBA-M | 18.1 | 710 m | multiple | 2003–2007 | 09 Oct 2007 | 24 | Alt.: 2007 TJ75 | MPC · JPL |
| 0 | 2003 UG304 | MBA-O | 17.0 | 2.2 km | multiple | 2001–2020 | 19 Jan 2020 | 67 | Alt.: 2008 RT79 | MPC · JPL |
| 1 | 2003 UR304 | MBA-M | 18.28 | 1.2 km | multiple | 2003–2021 | 09 Oct 2021 | 46 | Disc.: Spacewatch Added on 30 September 2021 Alt.: 2021 PH71 | MPC · JPL |
| 0 | 2003 US304 | MBA-O | 16.4 | 2.9 km | multiple | 2003–2021 | 14 Apr 2021 | 57 | — | MPC · JPL |
| 0 | 2003 UW304 | MBA-O | 16.8 | 2.4 km | multiple | 2003–2019 | 05 Nov 2019 | 70 | — | MPC · JPL |
| 0 | 2003 UG305 | MBA-O | 16.7 | 2.5 km | multiple | 2003–2021 | 14 Jan 2021 | 89 | Alt.: 2015 AP246 | MPC · JPL |
| 3 | 2003 UL305 | MBA-M | 19.0 | 670 m | multiple | 2003–2020 | 10 Dec 2020 | 22 | Disc.: Spacewatch Added on 17 June 2021 Alt.: 2020 WH11 | MPC · JPL |
| 5 | 2003 UM305 | MBA-I | 19.1 | 450 m | multiple | 2003–2013 | 27 Oct 2013 | 13 | — | MPC · JPL |
| 0 | 2003 UT305 | HIL | 16.2 | 3.2 km | multiple | 2003–2021 | 06 Jan 2021 | 48 | — | MPC · JPL |
| 0 | 2003 UX305 | MBA-I | 17.80 | 820 m | multiple | 2003–2021 | 08 Nov 2021 | 110 | Alt.: 2010 RH135 | MPC · JPL |
| 0 | 2003 UB306 | MBA-M | 17.2 | 2.0 km | multiple | 1998–2020 | 27 Apr 2020 | 68 | — | MPC · JPL |
| 0 | 2003 UH306 | MBA-M | 18.4 | 1.2 km | multiple | 2003–2021 | 29 Nov 2021 | 41 | Disc.: Spacewatch Added on 29 January 2022 | MPC · JPL |
| 3 | 2003 UN306 | MBA-M | 18.3 | 650 m | multiple | 2003–2019 | 29 Oct 2019 | 67 | Alt.: 2015 TT21 | MPC · JPL |
| 0 | 2003 UQ306 | MBA-O | 18.0 | 1.4 km | multiple | 2003–2020 | 09 Dec 2020 | 36 | Alt.: 2014 SG45 | MPC · JPL |
| 2 | 2003 UK307 | MBA-M | 18.60 | 800 m | multiple | 2003–2022 | 28 Jan 2022 | 27 | Disc.: Spacewatch Added on 29 January 2022 | MPC · JPL |
| 0 | 2003 UM307 | MBA-M | 17.86 | 1.5 km | multiple | 2003–2021 | 30 Aug 2021 | 46 | — | MPC · JPL |
| 0 | 2003 UT308 | MBA-I | 18.76 | 530 m | multiple | 2003–2018 | 17 Nov 2018 | 48 | — | MPC · JPL |
| 2 | 2003 UV308 | MBA-I | 18.6 | 570 m | multiple | 2003–2018 | 10 Dec 2018 | 28 | Disc.: Spacewatch Added on 29 January 2022 | MPC · JPL |
| 0 | 2003 UQ309 | MBA-O | 17.6 | 1.7 km | multiple | 2003–2021 | 15 Jan 2021 | 43 | — | MPC · JPL |
| 0 | 2003 UW309 | MBA-O | 15.9 | 3.7 km | multiple | 2000–2020 | 09 Dec 2020 | 202 | Alt.: 2014 QD88, 2015 XW381 | MPC · JPL |
| 1 | 2003 UB310 | MBA-M | 17.7 | 1.2 km | multiple | 2003–2021 | 05 Jan 2021 | 92 | Disc.: Spacewatch Added on 17 January 2021 | MPC · JPL |
| 0 | 2003 UE310 | MBA-O | 15.9 | 3.7 km | multiple | 2003–2021 | 10 Jan 2021 | 191 | Alt.: 2014 WN145 | MPC · JPL |
| 1 | 2003 UF310 | MBA-M | 17.7 | 860 m | multiple | 2003–2020 | 21 Dec 2020 | 29 | — | MPC · JPL |
| 0 | 2003 UO310 | MBA-I | 18.64 | 560 m | multiple | 2003–2021 | 27 Dec 2021 | 43 | — | MPC · JPL |
| 0 | 2003 UR310 | MBA-O | 16.5 | 2.8 km | multiple | 2003–2021 | 16 Jan 2021 | 104 | — | MPC · JPL |
| – | 2003 UH315 | MBA-M | 19.3 | 410 m | single | 25 days | 24 Oct 2003 | 12 | — | MPC · JPL |
| 1 | 2003 UJ315 | MBA-M | 18.4 | 620 m | multiple | 2003–2019 | 03 Jun 2019 | 42 | — | MPC · JPL |
| 0 | 2003 UW315 | MBA-O | 15.9 | 3.7 km | multiple | 2000–2021 | 06 Jan 2021 | 141 | Alt.: 2010 BL101, 2017 FD113 | MPC · JPL |
| 0 | 2003 UA316 | MBA-I | 17.9 | 780 m | multiple | 2003–2020 | 20 Dec 2020 | 133 | — | MPC · JPL |
| 0 | 2003 UA317 | MBA-O | 17.1 | 2.1 km | multiple | 2003–2019 | 26 Sep 2019 | 82 | Alt.: 2014 UC64 | MPC · JPL |
| 0 | 2003 UD317 | MBA-M | 18.4 | 880 m | multiple | 2003–2020 | 11 Oct 2020 | 92 | — | MPC · JPL |
| 0 | 2003 UQ317 | MBA-M | 17.8 | 1.2 km | multiple | 2003–2020 | 15 Dec 2020 | 133 | — | MPC · JPL |
| 1 | 2003 UB318 | MBA-M | 18.6 | 570 m | multiple | 2003–2015 | 09 Sep 2015 | 24 | — | MPC · JPL |
| 0 | 2003 UE318 | MBA-I | 17.6 | 900 m | multiple | 2003–2021 | 07 Jan 2021 | 125 | — | MPC · JPL |
| 0 | 2003 US319 | MBA-M | 17.7 | 860 m | multiple | 2003–2021 | 18 Jan 2021 | 76 | — | MPC · JPL |
| 0 | 2003 UZ319 | MBA-O | 16.6 | 2.7 km | multiple | 2003–2021 | 17 Jan 2021 | 92 | Alt.: 2014 XL30 | MPC · JPL |
| 0 | 2003 UD320 | MBA-I | 18.00 | 750 m | multiple | 1994–2021 | 10 Jan 2021 | 174 | — | MPC · JPL |
| 0 | 2003 UN320 | MBA-M | 17.73 | 1.6 km | multiple | 2003–2021 | 02 Oct 2021 | 30 | Alt.: 2003 SC406 | MPC · JPL |
| 1 | 2003 US320 | MBA-I | 17.2 | 1.1 km | multiple | 2003–2021 | 15 Apr 2021 | 46 | Disc.: LONEOS Added on 24 December 2021 | MPC · JPL |
| 0 | 2003 UB321 | MBA-O | 16.7 | 2.5 km | multiple | 2003–2018 | 07 Nov 2018 | 70 | Alt.: 2012 JE31 | MPC · JPL |
| 0 | 2003 UD321 | MBA-O | 16.82 | 2.4 km | multiple | 2003–2021 | 09 May 2021 | 79 | — | MPC · JPL |
| 0 | 2003 UF321 | MBA-O | 16.0 | 3.5 km | multiple | 2003–2021 | 05 Jan 2021 | 143 | Alt.: 2015 AR246, 2016 CG178 | MPC · JPL |
| 2 | 2003 UJ321 | MBA-M | 18.0 | 1.1 km | multiple | 2003–2020 | 15 Jun 2020 | 34 | — | MPC · JPL |
| 0 | 2003 UK321 | MBA-O | 16.4 | 2.9 km | multiple | 2003–2021 | 17 Jan 2021 | 133 | Alt.: 2010 EJ154, 2014 WE395 | MPC · JPL |
| 0 | 2003 UT321 | MBA-O | 17.0 | 2.2 km | multiple | 2003–2019 | 27 Oct 2019 | 57 | — | MPC · JPL |
| 0 | 2003 UU321 | MBA-I | 17.9 | 780 m | multiple | 2003–2019 | 10 Jan 2019 | 60 | Alt.: 2016 CS113 | MPC · JPL |
| 0 | 2003 UV321 | MBA-I | 17.5 | 940 m | multiple | 2003–2021 | 31 Mar 2021 | 51 | Disc.: Spacewatch Added on 11 May 2021 | MPC · JPL |
| 2 | 2003 UW321 | MBA-M | 18.7 | 540 m | multiple | 2003–2019 | 06 Jul 2019 | 115 | Disc.: Spacewatch Added on 5 November 2021 Alt.: 2007 RM299 | MPC · JPL |
| 0 | 2003 UX321 | MBA-M | 18.0 | 1.1 km | multiple | 2003–2020 | 15 Dec 2020 | 89 | — | MPC · JPL |
| 0 | 2003 UB322 | MBA-I | 19.04 | 460 m | multiple | 2003–2021 | 27 Dec 2021 | 58 | — | MPC · JPL |
| 1 | 2003 UL322 | MBA-M | 18.0 | 1.4 km | multiple | 2003–2017 | 16 Nov 2017 | 26 | — | MPC · JPL |
| 0 | 2003 UP322 | MBA-O | 16.5 | 2.8 km | multiple | 2003–2020 | 09 Dec 2020 | 124 | Alt.: 2014 UP135 | MPC · JPL |
| 0 | 2003 UQ322 | MBA-M | 18.07 | 1.4 km | multiple | 2003–2021 | 06 Nov 2021 | 46 | Disc.: Spacewatch Added on 30 September 2021 | MPC · JPL |
| 2 | 2003 US322 | MBA-I | 19.1 | 450 m | multiple | 2003–2020 | 12 Sep 2020 | 39 | Disc.: Spacewatch Added on 17 June 2021 Alt.: 2010 VT141, 2010 VX265 | MPC · JPL |
| 0 | 2003 UW322 | MBA-M | 17.9 | 1.1 km | multiple | 2003–2020 | 20 Oct 2020 | 91 | Disc.: LPL/Spacewatch II Added on 30 September 2021 Alt.: 2003 UA431 | MPC · JPL |
| 0 | 2003 UA323 | MBA-I | 18.40 | 620 m | multiple | 2003–2021 | 27 Nov 2021 | 89 | Disc.: LPL/Spacewatch II Added on 21 August 2021 | MPC · JPL |
| 0 | 2003 UG323 | MBA-O | 17.1 | 2.1 km | multiple | 2003–2019 | 26 Sep 2019 | 69 | Alt.: 2014 UB81 | MPC · JPL |
| 0 | 2003 UK323 | HIL | 15.7 | 4.0 km | multiple | 1995–2020 | 19 Jan 2020 | 90 | Alt.: 2011 UM96 | MPC · JPL |
| 0 | 2003 UT323 | MBA-I | 18.27 | 660 m | multiple | 2003–2021 | 08 Dec 2021 | 118 | Alt.: 2016 GN77 | MPC · JPL |
| 0 | 2003 UC324 | MBA-O | 17.1 | 2.1 km | multiple | 2003–2020 | 23 Nov 2020 | 70 | — | MPC · JPL |
| 0 | 2003 UK324 | MBA-M | 17.61 | 1.3 km | multiple | 2003–2022 | 06 Jan 2022 | 78 | — | MPC · JPL |
| 3 | 2003 UM324 | MBA-M | 17.5 | 940 m | single | 86 days | 22 Oct 2003 | 9 | — | MPC · JPL |
| 0 | 2003 UV324 | MBA-O | 15.99 | 3.5 km | multiple | 2001–2020 | 12 Dec 2020 | 193 | Alt.: 2014 WB243 | MPC · JPL |
| 0 | 2003 UZ324 | MBA-O | 17.0 | 2.2 km | multiple | 2003–2021 | 09 Apr 2021 | 28 | — | MPC · JPL |
| 0 | 2003 UE325 | MBA-O | 17.09 | 2.6 km | multiple | 2003–2020 | 17 Nov 2020 | 151 | Alt.: 2009 SL57 | MPC · JPL |
| 2 | 2003 UO325 | MBA-O | 16.8 | 2.4 km | multiple | 2003–2020 | 08 Dec 2020 | 53 | — | MPC · JPL |
| 0 | 2003 UR325 | MBA-O | 17.0 | 2.2 km | multiple | 2003–2021 | 05 Jan 2021 | 87 | — | MPC · JPL |
| 0 | 2003 UW325 | MBA-O | 16.04 | 3.4 km | multiple | 2003–2022 | 27 Jan 2022 | 185 | Alt.: 2007 LC32 | MPC · JPL |
| 0 | 2003 UK326 | HUN | 18.3 | 650 m | multiple | 2003–2018 | 15 Jan 2018 | 49 | Alt.: 2014 SA153 | MPC · JPL |
| 0 | 2003 UL326 | MBA-O | 15.9 | 3.7 km | multiple | 2003–2020 | 24 Mar 2020 | 53 | Alt.: 2010 OC14 | MPC · JPL |
| 0 | 2003 UM326 | MBA-M | 17.55 | 1.3 km | multiple | 2003–2022 | 27 Jan 2022 | 118 | — | MPC · JPL |
| 0 | 2003 UN326 | MBA-I | 18.6 | 570 m | multiple | 2003–2019 | 24 Jul 2019 | 99 | Alt.: 2016 PZ11 | MPC · JPL |
| 0 | 2003 UW326 | MBA-M | 17.8 | 1.5 km | multiple | 2003–2017 | 17 Nov 2017 | 51 | Alt.: 2003 UD419 | MPC · JPL |
| 3 | 2003 UY326 | MBA-M | 18.9 | 700 m | multiple | 2003–2012 | 03 Nov 2012 | 20 | Alt.: 2012 UR39 | MPC · JPL |
| 0 | 2003 UZ326 | MBA-O | 17.6 | 1.7 km | multiple | 2003–2019 | 24 Dec 2019 | 41 | — | MPC · JPL |
| 0 | 2003 UA327 | MBA-M | 17.4 | 980 m | multiple | 2003–2021 | 18 Jan 2021 | 88 | — | MPC · JPL |
| 0 | 2003 UB327 | MBA-M | 17.07 | 1.6 km | multiple | 2003–2022 | 25 Jan 2022 | 186 | Alt.: 2012 SA63 | MPC · JPL |
| 0 | 2003 UD327 | MBA-M | 17.50 | 1.3 km | multiple | 2003–2021 | 27 Nov 2021 | 136 | Alt.: 2012 SV62 | MPC · JPL |
| – | 2003 UJ327 | MBA-O | 18.4 | 1.2 km | single | 6 days | 23 Oct 2003 | 6 | — | MPC · JPL |
| 0 | 2003 UV327 | MBA-O | 17.63 | 1.7 km | multiple | 2003–2020 | 27 Feb 2020 | 72 | Alt.: 2013 SH61 | MPC · JPL |
| 0 | 2003 UB328 | MBA-I | 18.1 | 710 m | multiple | 2003–2020 | 27 Feb 2020 | 71 | Alt.: 2011 WN145 | MPC · JPL |
| 1 | 2003 UC328 | MBA-M | 18.2 | 680 m | multiple | 2003–2020 | 18 Dec 2020 | 29 | — | MPC · JPL |
| – | 2003 UW328 | MBA-M | 19.1 | 450 m | single | 7 days | 24 Oct 2003 | 8 | — | MPC · JPL |
| 0 | 2003 UY328 | MBA-O | 16.8 | 2.4 km | multiple | 2003–2020 | 12 Dec 2020 | 127 | Alt.: 2014 TD9 | MPC · JPL |
| 1 | 2003 UE329 | MBA-O | 17.1 | 2.1 km | multiple | 2003–2020 | 08 Nov 2020 | 53 | — | MPC · JPL |
| 0 | 2003 UF329 | MBA-O | 17.0 | 2.2 km | multiple | 2003–2020 | 19 Jan 2020 | 90 | Alt.: 2014 WH235 | MPC · JPL |
| 0 | 2003 UG329 | HUN | 19.3 | 410 m | multiple | 2003–2020 | 15 Oct 2020 | 38 | Disc.: SDSS Added on 9 March 2021 Alt.: 2012 GF5 | MPC · JPL |
| 1 | 2003 UM329 | MBA-M | 17.9 | 780 m | multiple | 2003–2015 | 28 Jul 2015 | 50 | — | MPC · JPL |
| 1 | 2003 UQ329 | MBA-I | 18.92 | 490 m | multiple | 2003–2022 | 27 Jan 2022 | 47 | — | MPC · JPL |
| 0 | 2003 UU329 | MBA-M | 18.11 | 1.0 km | multiple | 2003–2021 | 09 Dec 2021 | 72 | — | MPC · JPL |
| 0 | 2003 UX329 | MBA-O | 16.5 | 2.8 km | multiple | 2003–2020 | 17 Dec 2020 | 144 | Alt.: 2009 WF68 | MPC · JPL |
| 1 | 2003 UB330 | MBA-M | 17.8 | 1.2 km | multiple | 2003–2021 | 05 Jan 2021 | 94 | — | MPC · JPL |
| 0 | 2003 UC330 | MBA-M | 17.58 | 1.7 km | multiple | 2003–2021 | 27 Oct 2021 | 77 | Disc.: LPL/Spacewatch II Added on 19 October 2020 Alt.: 2012 SF22, 2015 HN136 | MPC · JPL |
| 0 | 2003 UG330 | MBA-M | 16.8 | 1.3 km | multiple | 2003–2021 | 09 Jan 2021 | 154 | — | MPC · JPL |
| 0 | 2003 UK330 | MBA-O | 16.8 | 2.4 km | multiple | 2003–2021 | 04 Jan 2021 | 70 | — | MPC · JPL |
| 0 | 2003 UN330 | MBA-O | 16.66 | 2.6 km | multiple | 2003–2021 | 04 Mar 2021 | 135 | — | MPC · JPL |
| 0 | 2003 US330 | MBA-M | 17.42 | 1.8 km | multiple | 2003–2021 | 23 May 2021 | 45 | — | MPC · JPL |
| 0 | 2003 UA331 | MBA-O | 16.73 | 2.5 km | multiple | 2003–2022 | 26 Jan 2022 | 103 | — | MPC · JPL |
| 0 | 2003 UB331 | MBA-O | 16.25 | 3.1 km | multiple | 2003–2022 | 27 Jan 2022 | 166 | Alt.: 2007 JR11, 2010 AF129 | MPC · JPL |
| 0 | 2003 UE331 | MBA-M | 17.7 | 860 m | multiple | 1999–2021 | 18 Jan 2021 | 87 | — | MPC · JPL |
| 1 | 2003 UH332 | MBA-M | 17.7 | 1.6 km | multiple | 2003–2019 | 02 Jan 2019 | 47 | — | MPC · JPL |
| 0 | 2003 US332 | MBA-O | 15.89 | 3.7 km | multiple | 1998–2021 | 30 Nov 2021 | 187 | Alt.: 2009 SU115 | MPC · JPL |
| 0 | 2003 UU332 | MBA-I | 18.8 | 520 m | multiple | 2003–2020 | 18 Jul 2020 | 112 | — | MPC · JPL |
| 1 | 2003 UY332 | MBA-O | 17.6 | 1.7 km | multiple | 2003–2019 | 21 Oct 2019 | 38 | Disc.: SDSS Added on 22 July 2020 | MPC · JPL |
| 0 | 2003 UB333 | MBA-M | 17.06 | 2.2 km | multiple | 2003–2021 | 06 Nov 2021 | 133 | — | MPC · JPL |
| 0 | 2003 UC333 | MBA-I | 17.50 | 940 m | multiple | 1994–2021 | 08 May 2021 | 179 | — | MPC · JPL |
| 2 | 2003 UD333 | MBA-M | 18.5 | 590 m | multiple | 1995–2019 | 20 Sep 2019 | 41 | — | MPC · JPL |
| 4 | 2003 UG333 | MBA-O | 17.6 | 1.7 km | single | 36 days | 23 Oct 2003 | 10 | Disc.: SDSS Added on 29 January 2022 | MPC · JPL |
| 0 | 2003 UR333 | MBA-I | 19.2 | 430 m | multiple | 2003–2019 | 01 Jun 2019 | 34 | Alt.: 2013 TR62 | MPC · JPL |
| 1 | 2003 UW333 | MBA-M | 18.5 | 840 m | multiple | 2003–2016 | 06 Oct 2016 | 51 | — | MPC · JPL |
| 0 | 2003 UY333 | HIL | 16.6 | 2.7 km | multiple | 1995–2020 | 08 Dec 2020 | 61 | Alt.: 2011 SB29 | MPC · JPL |
| 0 | 2003 UC334 | MBA-O | 17.2 | 2.0 km | multiple | 2003–2019 | 03 Oct 2019 | 49 | — | MPC · JPL |
| 0 | 2003 UN334 | MBA-I | 19.0 | 470 m | multiple | 2000–2019 | 29 Jul 2019 | 60 | — | MPC · JPL |
| 0 | 2003 UV334 | MBA-M | 17.35 | 1.9 km | multiple | 2003–2021 | 25 Nov 2021 | 113 | — | MPC · JPL |
| 0 | 2003 UX334 | MBA-M | 17.6 | 1.7 km | multiple | 2003–2020 | 22 Apr 2020 | 64 | Alt.: 2017 UJ32 | MPC · JPL |
| 0 | 2003 UY334 | MBA-I | 18.0 | 750 m | multiple | 2003–2021 | 08 Jun 2021 | 92 | Alt.: 2007 VJ32 | MPC · JPL |
| 0 | 2003 UA335 | MBA-I | 18.55 | 580 m | multiple | 2002–2021 | 31 Aug 2021 | 55 | Disc.: SDSS Added on 17 January 2021 | MPC · JPL |
| 0 | 2003 UG335 | MBA-M | 17.10 | 2.1 km | multiple | 2001–2021 | 20 Jul 2021 | 70 | — | MPC · JPL |
| 1 | 2003 UN335 | MBA-I | 19.1 | 450 m | multiple | 2003–2019 | 24 Oct 2019 | 152 | — | MPC · JPL |
| 0 | 2003 UQ335 | MBA-M | 18.16 | 1.3 km | multiple | 2003–2021 | 08 Sep 2021 | 43 | — | MPC · JPL |
| 0 | 2003 UU335 | MBA-O | 17.6 | 1.7 km | multiple | 2003–2021 | 18 Jan 2021 | 59 | Alt.: 2008 QN3 | MPC · JPL |
| 0 | 2003 UZ335 | MBA-M | 17.87 | 1.5 km | multiple | 2003–2021 | 27 Oct 2021 | 135 | — | MPC · JPL |
| 0 | 2003 UA336 | MBA-M | 18.26 | 940 m | multiple | 2003–2022 | 24 Jan 2022 | 57 | Disc.: SDSS Added on 22 July 2020 | MPC · JPL |
| 3 | 2003 UB336 | MBA-M | 18.9 | 700 m | multiple | 2003–2016 | 01 Nov 2016 | 31 | — | MPC · JPL |
| 1 | 2003 UE336 | MBA-O | 17.8 | 1.5 km | multiple | 2003–2020 | 16 Oct 2020 | 18 | Disc.: SDSS Added on 21 August 2021 | MPC · JPL |
| 1 | 2003 UH336 | MBA-M | 18.4 | 880 m | multiple | 2003–2020 | 15 Oct 2020 | 35 | — | MPC · JPL |
| – | 2003 UJ336 | MBA-O | 17.9 | 1.5 km | single | 6 days | 24 Oct 2003 | 6 | — | MPC · JPL |
| 0 | 2003 UM336 | MBA-O | 17.6 | 1.7 km | multiple | 2003–2019 | 01 Nov 2019 | 56 | — | MPC · JPL |
| 1 | 2003 UN336 | MBA-M | 18.83 | 720 m | multiple | 2003–2021 | 02 Dec 2021 | 28 | — | MPC · JPL |
| 0 | 2003 UQ336 | MBA-O | 16.9 | 2.3 km | multiple | 2003–2021 | 07 Jan 2021 | 70 | — | MPC · JPL |
| 0 | 2003 UR336 | MBA-M | 17.98 | 1.4 km | multiple | 2003–2021 | 04 Oct 2021 | 35 | Disc.: SDSS Added on 30 September 2021 Alt.: 2021 QF37 | MPC · JPL |
| 1 | 2003 UT336 | MBA-I | 19.06 | 460 m | multiple | 2003–2021 | 09 Jun 2021 | 48 | Alt.: 2003 UK337 | MPC · JPL |
| 1 | 2003 UV336 | MBA-O | 16.9 | 2.3 km | multiple | 2003–2020 | 11 Dec 2020 | 73 | — | MPC · JPL |
| 2 | 2003 UW336 | MBA-M | 18.2 | 960 m | multiple | 2003–2016 | 10 Sep 2016 | 25 | — | MPC · JPL |
| 0 | 2003 UX336 | MBA-M | 17.91 | 1.1 km | multiple | 2003–2022 | 07 Jan 2022 | 53 | Alt.: 2006 HU145 | MPC · JPL |
| 2 | 2003 UB337 | MBA-O | 17.80 | 1.5 km | multiple | 2003–2019 | 02 Nov 2019 | 63 | — | MPC · JPL |
| 0 | 2003 UD337 | MBA-M | 18.43 | 1.1 km | multiple | 2003–2021 | 31 Oct 2021 | 64 | — | MPC · JPL |
| 3 | 2003 UM337 | MBA-I | 19.8 | 330 m | multiple | 2003–2020 | 12 Sep 2020 | 19 | Disc.: Spacewatch Added on 19 October 2020 | MPC · JPL |
| 0 | 2003 UO337 | MBA-I | 18.64 | 560 m | multiple | 2003–2021 | 07 Apr 2021 | 56 | — | MPC · JPL |
| 0 | 2003 UU337 | MBA-O | 17.0 | 2.2 km | multiple | 2003–2019 | 28 Dec 2019 | 73 | — | MPC · JPL |
| 0 | 2003 UW337 | MBA-O | 17.1 | 2.1 km | multiple | 1992–2020 | 20 Oct 2020 | 66 | — | MPC · JPL |
| 0 | 2003 UX337 | MBA-O | 16.8 | 2.4 km | multiple | 2003–2021 | 18 Jan 2021 | 84 | Alt.: 2016 CG146 | MPC · JPL |
| 1 | 2003 UD338 | MBA-I | 19.57 | 360 m | multiple | 2003–2021 | 01 Nov 2021 | 31 | — | MPC · JPL |
| 0 | 2003 UL338 | MBA-M | 18.2 | 680 m | multiple | 2001–2021 | 05 Jan 2021 | 40 | — | MPC · JPL |
| 0 | 2003 UN338 | MBA-I | 18.6 | 570 m | multiple | 2003–2018 | 13 Aug 2018 | 39 | Alt.: 2007 VF129 | MPC · JPL |
| 1 | 2003 UU338 | MBA-M | 19.18 | 810 m | multiple | 2003–2021 | 28 Oct 2021 | 35 | — | MPC · JPL |
| 1 | 2003 UX338 | MBA-M | 17.4 | 1.4 km | multiple | 2001–2018 | 28 Jan 2018 | 24 | — | MPC · JPL |
| – | 2003 UY338 | MBA-M | 19.4 | 390 m | single | 6 days | 24 Oct 2003 | 7 | — | MPC · JPL |
| 2 | 2003 UD339 | MBA-M | 19.1 | 840 m | multiple | 2003–2017 | 22 Nov 2017 | 26 | Alt.: 2017 UO75 | MPC · JPL |
| 3 | 2003 UE339 | MBA-I | 19.5 | 370 m | multiple | 2003–2021 | 14 Apr 2021 | 34 | Disc.: Spacewatch Added on 21 August 2021 Alt.: 2019 UX51 | MPC · JPL |
| 2 | 2003 UO339 | MBA-M | 19.4 | 390 m | multiple | 2003–2019 | 01 Oct 2019 | 34 | Disc.: Spacewatch Added on 17 January 2021 Alt.: 2015 TT54 | MPC · JPL |
| 1 | 2003 US339 | MBA-M | 18.5 | 840 m | multiple | 2003–2020 | 17 Nov 2020 | 28 | Disc.: Spacewatch Added on 9 March 2021 | MPC · JPL |
| 0 | 2003 UZ339 | MBA-O | 17.2 | 2.0 km | multiple | 2003–2021 | 17 Jan 2021 | 54 | Disc.: LPL/Spacewatch II Added on 22 July 2020 | MPC · JPL |
| 1 | 2003 UH340 | MBA-I | 18.7 | 540 m | multiple | 1999–2020 | 25 Jan 2020 | 35 | Alt.: 2007 VY105 | MPC · JPL |
| 0 | 2003 UJ340 | MBA-M | 17.7 | 860 m | multiple | 2003–2021 | 05 Jan 2021 | 59 | — | MPC · JPL |
| 3 | 2003 UN340 | MBA-O | 17.7 | 1.6 km | multiple | 2003–2019 | 28 Aug 2019 | 27 | — | MPC · JPL |
| 0 | 2003 UO340 | MBA-O | 17.51 | 1.8 km | multiple | 2003–2021 | 09 Apr 2021 | 65 | — | MPC · JPL |
| 2 | 2003 UT340 | MBA-O | 17.4 | 1.8 km | multiple | 2003–2020 | 12 Dec 2020 | 32 | Disc.: Spacewatch Added on 17 January 2021 | MPC · JPL |
| 0 | 2003 UV340 | MBA-O | 16.5 | 2.8 km | multiple | 2003–2021 | 12 Jan 2021 | 94 | Alt.: 2010 AZ38 | MPC · JPL |
| 1 | 2003 UC341 | MBA-M | 18.0 | 1.1 km | multiple | 2003–2020 | 09 Dec 2020 | 51 | Disc.: Spacewatch Added on 17 January 2021 Alt.: 2014 EM185 | MPC · JPL |
| 2 | 2003 UK341 | MBA-M | 17.2 | 1.1 km | multiple | 2003–2021 | 18 Jan 2021 | 63 | Disc.: SDSS Added on 17 January 2021 | MPC · JPL |
| 0 | 2003 UO341 | MBA-M | 16.46 | 1.5 km | multiple | 2003–2022 | 25 Jan 2022 | 157 | — | MPC · JPL |
| 0 | 2003 US341 | MBA-O | 16.09 | 4.9 km | multiple | 2003–2022 | 25 Jan 2022 | 186 | Alt.: 2003 SR113, 2010 BN36 | MPC · JPL |
| 0 | 2003 UT341 | MBA-I | 18.6 | 1.3 km | multiple | 2003–2020 | 11 Oct 2020 | 73 | — | MPC · JPL |
| 0 | 2003 UV341 | MBA-O | 16.8 | 2.4 km | multiple | 2003–2021 | 04 Jan 2021 | 93 | — | MPC · JPL |
| 0 | 2003 UW341 | HUN | 18.22 | 670 m | multiple | 1995–2021 | 17 May 2021 | 134 | — | MPC · JPL |
| 0 | 2003 UX341 | HUN | 18.48 | 600 m | multiple | 2003–2021 | 09 Apr 2021 | 83 | — | MPC · JPL |
| 0 | 2003 UB342 | MBA-M | 18.1 | 1.0 km | multiple | 2003–2020 | 05 Nov 2020 | 61 | Disc.: SDSS Added on 17 January 2021 | MPC · JPL |
| 0 | 2003 UC342 | MBA-O | 17.0 | 2.2 km | multiple | 2000–2019 | 24 Aug 2019 | 57 | Alt.: 2010 CD13 | MPC · JPL |
| 0 | 2003 UM342 | MBA-M | 16.42 | 2.9 km | multiple | 2003–2021 | 09 Aug 2021 | 197 | Alt.: 2010 CQ117, 2012 PN33, 2013 YS66 | MPC · JPL |
| 0 | 2003 UW342 | MBA-M | 17.7 | 860 m | multiple | 1999–2021 | 16 Jan 2021 | 48 | — | MPC · JPL |
| 1 | 2003 UB343 | MBA-O | 17.5 | 1.8 km | multiple | 2003–2020 | 16 Mar 2020 | 35 | — | MPC · JPL |
| 0 | 2003 UG343 | MBA-O | 16.8 | 2.4 km | multiple | 2003–2020 | 22 Oct 2020 | 69 | — | MPC · JPL |
| – | 2003 UO343 | MBA-M | 19.9 | 440 m | single | 4 days | 23 Oct 2003 | 6 | — | MPC · JPL |
| 1 | 2003 UT343 | MBA-I | 18.9 | 490 m | multiple | 2002–2019 | 31 Oct 2019 | 27 | — | MPC · JPL |
| 0 | 2003 UY343 | MBA-O | 16.9 | 2.3 km | multiple | 2003–2019 | 27 Oct 2019 | 73 | Alt.: 2016 CK140 | MPC · JPL |
| 0 | 2003 UC344 | MBA-O | 16.76 | 2.5 km | multiple | 2003–2022 | 07 Jan 2022 | 116 | Alt.: 2010 BT115 | MPC · JPL |
| 1 | 2003 UD344 | MBA-I | 18.8 | 520 m | multiple | 2003–2020 | 22 Aug 2020 | 72 | — | MPC · JPL |
| 0 | 2003 UG344 | HIL | 15.9 | 3.7 km | multiple | 1995–2021 | 17 Jan 2021 | 102 | Alt.: 2006 HS141 | MPC · JPL |
| 0 | 2003 UM344 | MBA-M | 18.2 | 680 m | multiple | 2003–2020 | 17 Dec 2020 | 36 | Disc.: SDSS Added on 11 May 2021 | MPC · JPL |
| 0 | 2003 UN344 | HUN | 19.63 | 350 m | multiple | 2003–2021 | 09 Nov 2021 | 29 | — | MPC · JPL |
| 1 | 2003 UO344 | MBA-M | 18.48 | 1.1 km | multiple | 2003–2021 | 27 Oct 2021 | 54 | Disc.: SDSS Added on 30 September 2021 | MPC · JPL |
| 1 | 2003 UP344 | MBA-I | 18.5 | 590 m | multiple | 2003–2015 | 08 Dec 2015 | 25 | — | MPC · JPL |
| 0 | 2003 US344 | MBA-I | 18.8 | 520 m | multiple | 2003–2018 | 17 Aug 2018 | 29 | Alt.: 2007 WT21 | MPC · JPL |
| 0 | 2003 UB345 | MBA-O | 17.27 | 2.0 km | multiple | 1998–2021 | 09 May 2021 | 73 | Alt.: 2013 RE25 | MPC · JPL |
| 0 | 2003 UH345 | MBA-O | 17.76 | 1.6 km | multiple | 1998–2019 | 28 Oct 2019 | 49 | — | MPC · JPL |
| 0 | 2003 UK345 | MBA-I | 18.8 | 520 m | multiple | 2003–2020 | 11 Oct 2020 | 56 | — | MPC · JPL |
| 0 | 2003 UL345 | MBA-I | 18.86 | 500 m | multiple | 2003–2021 | 30 Nov 2021 | 54 | Alt.: 2010 HP132 | MPC · JPL |
| 3 | 2003 UT345 | MBA-I | 19.3 | 410 m | multiple | 2003–2014 | 25 Oct 2014 | 18 | Disc.: SDSS Added on 21 August 2021 | MPC · JPL |
| 0 | 2003 UX345 | MBA-M | 17.69 | 1.6 km | multiple | 2003–2021 | 29 Nov 2021 | 102 | Alt.: 2012 RV39 | MPC · JPL |
| 0 | 2003 UA346 | MBA-I | 19.1 | 450 m | multiple | 2003–2018 | 05 Oct 2018 | 32 | — | MPC · JPL |
| 3 | 2003 UC346 | MBA-O | 17.4 | 1.8 km | multiple | 2003–2020 | 14 Dec 2020 | 29 | Disc.: SDSS Added on 17 June 2021 Alt.: 2019 RW55 | MPC · JPL |
| 0 | 2003 UF346 | MBA-M | 17.6 | 1.3 km | multiple | 2003–2020 | 17 Oct 2020 | 56 | Disc.: SDSS Added on 17 January 2021 | MPC · JPL |
| 3 | 2003 UK346 | MBA-O | 17.7 | 1.6 km | multiple | 2003–2020 | 23 Oct 2020 | 21 | Disc.: SDSS Added on 21 August 2021 | MPC · JPL |
| 0 | 2003 UN346 | MBA-I | 18.5 | 590 m | multiple | 2003–2020 | 15 Oct 2020 | 84 | — | MPC · JPL |
| 0 | 2003 UP346 | MBA-O | 16.56 | 2.7 km | multiple | 2001–2022 | 13 Jan 2022 | 105 | — | MPC · JPL |
| 0 | 2003 UT346 | MBA-O | 17.4 | 1.8 km | multiple | 2003–2021 | 08 Jun 2021 | 53 | — | MPC · JPL |
| 0 | 2003 UW346 | MBA-O | 16.6 | 2.7 km | multiple | 2001–2020 | 24 Oct 2020 | 97 | Alt.: 2013 LN3, 2014 MC34 | MPC · JPL |
| 1 | 2003 UA347 | MBA-I | 19.4 | 390 m | multiple | 2003–2020 | 10 Oct 2020 | 44 | Disc.: SDSS Added on 19 October 2020 | MPC · JPL |
| 0 | 2003 UB347 | MBA-I | 18.53 | 580 m | multiple | 2003–2021 | 08 May 2021 | 118 | — | MPC · JPL |
| 1 | 2003 UC347 | MBA-O | 17.1 | 2.1 km | multiple | 2003–2020 | 12 Dec 2020 | 77 | Alt.: 2010 CH213 | MPC · JPL |
| 0 | 2003 UF347 | MBA-O | 17.23 | 2.0 km | multiple | 1998–2021 | 14 Jul 2021 | 72 | — | MPC · JPL |
| 0 | 2003 UG347 | MBA-O | 17.1 | 2.1 km | multiple | 2003–2020 | 14 Dec 2020 | 58 | Alt.: 2014 OG191 | MPC · JPL |
| 0 | 2003 UL347 | MBA-O | 16.8 | 2.4 km | multiple | 2003–2020 | 17 Nov 2020 | 70 | Alt.: 2015 XL260, 2017 FE25 | MPC · JPL |
| 0 | 2003 UN347 | MBA-O | 16.9 | 2.3 km | multiple | 2003–2020 | 17 Dec 2020 | 22 | — | MPC · JPL |
| 1 | 2003 UP347 | MBA-O | 17.6 | 1.7 km | multiple | 2003–2020 | 18 Dec 2020 | 25 | Alt.: 2014 SD196 | MPC · JPL |
| 0 | 2003 UY347 | MBA-M | 17.53 | 1.3 km | multiple | 2003–2021 | 16 Nov 2021 | 49 | Alt.: 2012 UW86, 2012 XX159, 2015 HG119 | MPC · JPL |
| 0 | 2003 UC348 | HUN | 19.66 | 350 m | multiple | 2003–2021 | 10 May 2021 | 38 | — | MPC · JPL |
| 0 | 2003 UG348 | MBA-I | 18.5 | 590 m | multiple | 1992–2018 | 13 Dec 2018 | 39 | Disc.: SDSS Added on 22 July 2020 | MPC · JPL |
| 0 | 2003 UN348 | MBA-O | 17.1 | 2.1 km | multiple | 2003–2020 | 08 Dec 2020 | 44 | — | MPC · JPL |
| 0 | 2003 UO348 | MBA-I | 17.9 | 780 m | multiple | 2003–2020 | 02 Feb 2020 | 86 | — | MPC · JPL |
| 3 | 2003 UP348 | MBA-M | 18.4 | 620 m | multiple | 2003–2021 | 16 Jan 2021 | 15 | Disc.: SDSS Added on 5 November 2021 | MPC · JPL |
| 0 | 2003 US348 | MBA-I | 18.48 | 600 m | multiple | 2003–2021 | 11 May 2021 | 110 | Alt.: 2015 XE349 | MPC · JPL |
| 0 | 2003 UW348 | MBA-O | 17.4 | 1.8 km | multiple | 2003–2019 | 04 Nov 2019 | 55 | — | MPC · JPL |
| 0 | 2003 UM349 | MBA-O | 16.9 | 2.3 km | multiple | 2003–2019 | 19 Dec 2019 | 63 | Alt.: 2017 HB30 | MPC · JPL |
| 0 | 2003 UR349 | HUN | 18.7 | 540 m | multiple | 2003–2021 | 02 Apr 2021 | 34 | — | MPC · JPL |
| 0 | 2003 UT349 | MBA-O | 17.4 | 1.8 km | multiple | 2003–2021 | 12 Feb 2021 | 36 | Disc.: SDSS Added on 11 May 2021 Alt.: 2014 WW450 | MPC · JPL |
| 0 | 2003 UZ349 | MBA-I | 18.18 | 690 m | multiple | 2001–2021 | 18 Apr 2021 | 55 | Alt.: 2007 UU23 | MPC · JPL |
| 3 | 2003 UG350 | MBA-M | 18.68 | 1.0 km | multiple | 2003–2017 | 21 Nov 2017 | 17 | Disc.: SDSS Added on 17 June 2021 | MPC · JPL |
| 0 | 2003 UJ350 | MBA-O | 16.62 | 2.6 km | multiple | 2003–2021 | 31 Mar 2021 | 85 | Disc.: SDSS Added on 22 July 2020 Alt.: 2003 UY381, 2008 RB64 | MPC · JPL |
| – | 2003 UN350 | MBA-O | 17.6 | 1.7 km | single | 5 days | 24 Oct 2003 | 6 | — | MPC · JPL |
| 0 | 2003 UO350 | HIL | 16.2 | 3.2 km | multiple | 1995–2019 | 25 Nov 2019 | 53 | Alt.: 2011 UT19 | MPC · JPL |
| 0 | 2003 UT350 | MBA-M | 17.1 | 1.6 km | multiple | 2003–2021 | 13 Jan 2021 | 159 | — | MPC · JPL |
| 0 | 2003 UY350 | MBA-I | 18.86 | 500 m | multiple | 2003–2021 | 30 Sep 2021 | 53 | — | MPC · JPL |
| 3 | 2003 UM351 | MBA-M | 19.0 | 470 m | multiple | 2003–2020 | 19 Dec 2020 | 14 | — | MPC · JPL |
| 0 | 2003 UN351 | MBA-I | 19.1 | 450 m | multiple | 2003–2020 | 10 Dec 2020 | 62 | — | MPC · JPL |
| 0 | 2003 UR351 | MBA-M | 17.84 | 1.1 km | multiple | 1996–2021 | 02 Dec 2021 | 72 | Disc.: SDSS Added on 24 December 2021 | MPC · JPL |
| 0 | 2003 US351 | MBA-M | 17.92 | 1.5 km | multiple | 2003–2021 | 27 Nov 2021 | 59 | Disc.: SDSS Added on 5 November 2021 Alt.: 2012 TJ127, 2021 RT15 | MPC · JPL |
| 0 | 2003 UD352 | MBA-O | 16.9 | 2.3 km | multiple | 2003–2021 | 15 Jan 2021 | 68 | — | MPC · JPL |
| 0 | 2003 UE352 | MBA-M | 17.31 | 1.9 km | multiple | 2003–2021 | 08 Sep 2021 | 85 | Alt.: 2005 EX190 | MPC · JPL |
| 0 | 2003 UK352 | MBA-O | 16.7 | 2.5 km | multiple | 2003–2020 | 14 Nov 2020 | 47 | Disc.: SDSS Added on 17 January 2021 | MPC · JPL |
| 0 | 2003 UL352 | MBA-O | 17.1 | 2.1 km | multiple | 2003–2020 | 09 Dec 2020 | 45 | Disc.: SDSS Added on 22 July 2020 | MPC · JPL |
| 0 | 2003 UM352 | MBA-O | 17.34 | 1.9 km | multiple | 2001–2020 | 14 Oct 2020 | 50 | Disc.: SDSS Added on 17 January 2021 Alt.: 2010 BB147 | MPC · JPL |
| – | 2003 UP352 | MBA-M | 18.9 | 490 m | single | 47 days | 16 Nov 2003 | 10 | — | MPC · JPL |
| 0 | 2003 UY352 | MBA-M | 17.3 | 1.0 km | multiple | 2003–2021 | 15 Jan 2021 | 87 | Alt.: 2013 EQ9 | MPC · JPL |
| 0 | 2003 UE353 | MBA-O | 16.79 | 2.4 km | multiple | 2003–2022 | 12 Jan 2022 | 109 | Alt.: 2014 WR152 | MPC · JPL |
| – | 2003 UF353 | MBA-M | 19.0 | 670 m | single | 4 days | 23 Oct 2003 | 6 | — | MPC · JPL |
| 0 | 2003 UG353 | MBA-O | 16.99 | 2.2 km | multiple | 2003–2022 | 25 Jan 2022 | 104 | Alt.: 2010 CK258, 2014 UM155 | MPC · JPL |
| 0 | 2003 UP353 | MBA-M | 16.8 | 1.3 km | multiple | 2003–2021 | 07 Jan 2021 | 155 | Alt.: 2010 DT19, 2015 TV40 | MPC · JPL |
| 0 | 2003 US353 | MBA-I | 19.4 | 390 m | multiple | 2003–2020 | 06 Dec 2020 | 49 | — | MPC · JPL |
| 0 | 2003 UU353 | MBA-M | 17.13 | 1.6 km | multiple | 2003–2021 | 03 Dec 2021 | 95 | Alt.: 2014 EH175 | MPC · JPL |
| 0 | 2003 UW353 | MBA-M | 18.41 | 1.2 km | multiple | 2003–2021 | 28 Nov 2021 | 51 | — | MPC · JPL |
| – | 2003 UE354 | MBA-I | 19.1 | 450 m | single | 4 days | 23 Oct 2003 | 6 | — | MPC · JPL |
| 0 | 2003 UL354 | MBA-M | 17.6 | 900 m | multiple | 1995–2019 | 23 Oct 2019 | 64 | Alt.: 2006 HJ117 | MPC · JPL |
| – | 2003 UN354 | MBA-M | 19.2 | 430 m | single | 23 days | 23 Oct 2003 | 8 | — | MPC · JPL |
| 0 | 2003 UR354 | MBA-O | 17.12 | 2.1 km | multiple | 2003–2021 | 08 Aug 2021 | 127 | — | MPC · JPL |
| 0 | 2003 UV354 | HUN | 18.7 | 540 m | multiple | 2003–2021 | 16 Jan 2021 | 59 | Alt.: 2013 GV133 | MPC · JPL |
| 0 | 2003 UX354 | MBA-I | 18.96 | 480 m | multiple | 2003–2021 | 29 Oct 2021 | 66 | Alt.: 2014 WQ92 | MPC · JPL |
| 0 | 2003 UB355 | MBA-O | 16.99 | 2.2 km | multiple | 1998–2021 | 08 Aug 2021 | 128 | — | MPC · JPL |
| 0 | 2003 UC355 | MBA-O | 17.66 | 1.6 km | multiple | 2003–2021 | 09 Apr 2021 | 64 | — | MPC · JPL |
| 0 | 2003 UD355 | MBA-O | 17.1 | 2.1 km | multiple | 2003–2019 | 27 Oct 2019 | 60 | — | MPC · JPL |
| 0 | 2003 UG355 | MBA-M | 18.12 | 1.3 km | multiple | 2003–2021 | 10 Aug 2021 | 38 | — | MPC · JPL |
| 0 | 2003 UN355 | MBA-O | 17.4 | 1.8 km | multiple | 2003–2021 | 06 Jan 2021 | 77 | Alt.: 2014 QL394, 2016 AM141 | MPC · JPL |
| 0 | 2003 US355 | MBA-I | 17.5 | 940 m | multiple | 2003–2020 | 24 Mar 2020 | 113 | Alt.: 2011 YA36 | MPC · JPL |
| 0 | 2003 UY355 | MBA-O | 17.1 | 2.1 km | multiple | 2003–2019 | 27 Oct 2019 | 76 | Alt.: 2014 UO148 | MPC · JPL |
| 0 | 2003 UD356 | MBA-O | 17.53 | 1.7 km | multiple | 2003–2021 | 02 Apr 2021 | 57 | Alt.: 2016 FC16 | MPC · JPL |
| 0 | 2003 UK356 | MBA-M | 17.71 | 1.6 km | multiple | 2003–2021 | 24 Oct 2021 | 59 | Disc.: Spacewatch Added on 30 September 2021 Alt.: 2014 DS188 | MPC · JPL |
| 0 | 2003 UM356 | MBA-O | 16.7 | 2.5 km | multiple | 2003–2021 | 07 Jan 2021 | 102 | Alt.: 2014 WA281 | MPC · JPL |
| 3 | 2003 UN356 | MBA-I | 19.3 | 410 m | multiple | 2003–2021 | 07 Nov 2021 | 30 | Disc.: Spacewatch Added on 24 December 2021 | MPC · JPL |
| 0 | 2003 UQ356 | MBA-M | 18.03 | 1.0 km | multiple | 2003–2022 | 25 Jan 2022 | 51 | Disc.: Spacewatch Added on 17 January 2021 | MPC · JPL |
| 0 | 2003 UR356 | MBA-M | 19.37 | 560 m | multiple | 2003–2020 | 14 Dec 2020 | 72 | Disc.: Spacewatch Added on 17 January 2021 | MPC · JPL |
| 1 | 2003 UV356 | MBA-I | 18.3 | 650 m | multiple | 2003–2019 | 31 May 2019 | 61 | — | MPC · JPL |
| 2 | 2003 UC357 | MBA-M | 17.4 | 980 m | multiple | 1997–2021 | 18 Jan 2021 | 85 | — | MPC · JPL |
| 0 | 2003 UL357 | MBA-O | 17.0 | 2.2 km | multiple | 2003–2020 | 10 Dec 2020 | 80 | Alt.: 2008 SE87, 2014 UC79 | MPC · JPL |
| 0 | 2003 UM357 | MBA-I | 18.4 | 620 m | multiple | 2003–2020 | 23 Dec 2020 | 79 | Alt.: 2015 FO233 | MPC · JPL |
| 4 | 2003 UR357 | MBA-M | 19.3 | 580 m | multiple | 2003–2020 | 10 Dec 2020 | 18 | Disc.: Spacewatch Added on 11 May 2021 | MPC · JPL |
| 0 | 2003 UX357 | HUN | 18.86 | 500 m | multiple | 2003–2021 | 07 Jul 2021 | 135 | Alt.: 2010 GC33 | MPC · JPL |
| 3 | 2003 UA358 | MBA-O | 17.3 | 1.9 km | multiple | 2003–2019 | 27 Oct 2019 | 42 | — | MPC · JPL |
| 0 | 2003 UE358 | MBA-I | 17.8 | 820 m | multiple | 2003–2020 | 16 Jun 2020 | 129 | — | MPC · JPL |
| 0 | 2003 UG358 | MBA-M | 17.5 | 940 m | multiple | 2003–2021 | 06 Jan 2021 | 90 | — | MPC · JPL |
| 0 | 2003 UH358 | MBA-O | 17.02 | 2.2 km | multiple | 2003–2021 | 13 May 2021 | 77 | Alt.: 2013 SZ1 | MPC · JPL |
| 0 | 2003 UK358 | HIL | 16.0 | 3.5 km | multiple | 2003–2021 | 16 Jan 2021 | 66 | Alt.: 2011 WS172, 2019 TK32 | MPC · JPL |
| 0 | 2003 UL358 | MBA-O | 16.4 | 2.9 km | multiple | 2003–2020 | 21 Jan 2020 | 100 | Alt.: 2017 HV15 | MPC · JPL |
| 1 | 2003 UM358 | MBA-O | 16.9 | 2.3 km | multiple | 2003–2018 | 13 Apr 2018 | 38 | Alt.: 2014 TJ39 | MPC · JPL |
| 0 | 2003 UN358 | MBA-M | 18.0 | 750 m | multiple | 2003–2021 | 12 Jan 2021 | 64 | — | MPC · JPL |
| 1 | 2003 UP358 | MBA-M | 17.3 | 1.0 km | multiple | 2003–2020 | 15 Dec 2020 | 49 | — | MPC · JPL |
| 1 | 2003 UZ358 | MBA-M | 18.2 | 960 m | multiple | 2003–2020 | 14 Oct 2020 | 41 | Disc.: Spacewatch Added on 17 January 2021 | MPC · JPL |
| 0 | 2003 UG359 | MBA-I | 18.68 | 550 m | multiple | 2003–2021 | 30 Nov 2021 | 87 | — | MPC · JPL |
| 0 | 2003 UH359 | MBA-I | 18.20 | 680 m | multiple | 2003–2021 | 08 May 2021 | 48 | Alt.: 2007 UG101 | MPC · JPL |
| 0 | 2003 US359 | MBA-O | 16.95 | 2.3 km | multiple | 2003–2021 | 13 May 2021 | 132 | Alt.: 2010 GT180 | MPC · JPL |
| 1 | 2003 UU359 | MBA-O | 17.7 | 1.6 km | multiple | 2003–2019 | 01 Nov 2019 | 29 | Disc.: LPL/Spacewatch II Added on 19 October 2020 | MPC · JPL |
| 0 | 2003 UW359 | MBA-O | 17.4 | 1.8 km | multiple | 2003–2021 | 16 Jan 2021 | 65 | — | MPC · JPL |
| 0 | 2003 UX359 | MBA-I | 18.7 | 540 m | multiple | 2003–2020 | 11 Dec 2020 | 64 | — | MPC · JPL |
| 0 | 2003 UN360 | MBA-O | 16.44 | 2.9 km | multiple | 2003–2021 | 17 Apr 2021 | 171 | Alt.: 2014 WH388 | MPC · JPL |
| 0 | 2003 UQ360 | MBA-O | 16.5 | 2.8 km | multiple | 1998–2019 | 02 Nov 2019 | 124 | Alt.: 2014 WY146 | MPC · JPL |
| 0 | 2003 UU360 | MBA-M | 18.0 | 1.1 km | multiple | 2003–2020 | 07 Dec 2020 | 112 | — | MPC · JPL |
| 0 | 2003 UZ360 | MBA-O | 16.98 | 2.2 km | multiple | 2003–2021 | 15 Apr 2021 | 86 | — | MPC · JPL |
| – | 2003 UL361 | HIL | 17.4 | 1.8 km | single | 3 days | 23 Oct 2003 | 7 | — | MPC · JPL |
| 0 | 2003 UM361 | MBA-M | 18.5 | 600 m | multiple | 2003-2024 | 31 Oct 2024 | 35 | — | MPC · JPL |
| 0 | 2003 UP361 | MBA-I | 19.05 | 460 m | multiple | 2003–2022 | 25 Jan 2022 | 36 | — | MPC · JPL |
| 1 | 2003 UT361 | MBA-O | 17.5 | 1.8 km | multiple | 2003–2020 | 17 Dec 2020 | 26 | — | MPC · JPL |
| 0 | 2003 UW361 | MBA-M | 17.1 | 1.6 km | multiple | 2003–2021 | 06 Jan 2021 | 153 | Alt.: 2014 HL8 | MPC · JPL |
| 0 | 2003 UX361 | MBA-M | 17.91 | 1.5 km | multiple | 2003–2021 | 08 Sep 2021 | 54 | Alt.: 2015 FJ234 | MPC · JPL |
| 0 | 2003 UY361 | MBA-M | 17.9 | 1.1 km | multiple | 2003–2021 | 06 Jan 2021 | 69 | Alt.: 2016 UE254 | MPC · JPL |
| – | 2003 UZ361 | MBA-I | 20.2 | 270 m | single | 3 days | 23 Oct 2003 | 7 | — | MPC · JPL |
| – | 2003 UA362 | MBA-O | 17.2 | 2.0 km | single | 4 days | 24 Oct 2003 | 7 | — | MPC · JPL |
| 2 | 2003 UB362 | MBA-M | 18.1 | 1.0 km | multiple | 2003–2020 | 11 Dec 2020 | 37 | Disc.: Spacewatch Added on 17 January 2021 | MPC · JPL |
| 0 | 2003 UJ362 | MBA-M | 17.8 | 1.2 km | multiple | 2003–2020 | 14 Sep 2020 | 34 | — | MPC · JPL |
| 2 | 2003 UN362 | MBA-M | 18.1 | 1.3 km | multiple | 2003–2017 | 14 Sep 2017 | 21 | — | MPC · JPL |
| 0 | 2003 UO362 | MBA-M | 17.7 | 860 m | multiple | 2003–2019 | 03 Oct 2019 | 47 | Alt.: 2014 HF170 | MPC · JPL |
| 1 | 2003 UQ362 | MBA-O | 16.7 | 2.5 km | multiple | 2003–2021 | 05 Jan 2021 | 92 | Alt.: 2014 QM306 | MPC · JPL |
| 0 | 2003 UR362 | MBA-O | 17.3 | 1.9 km | multiple | 1998–2019 | 08 Nov 2019 | 66 | Alt.: 2014 WZ125, 2014 WJ483 | MPC · JPL |
| 0 | 2003 UV362 | MBA-M | 17.48 | 1.8 km | multiple | 2001–2021 | 10 Nov 2021 | 71 | Disc.: Spacewatch Added on 21 August 2021 Alt.: 2008 XM68 | MPC · JPL |
| 2 | 2003 UA363 | MBA-M | 18.5 | 590 m | multiple | 2003–2019 | 09 Jul 2019 | 33 | Alt.: 2015 MT113 | MPC · JPL |
| – | 2003 UE363 | MBA-I | 18.8 | 520 m | single | 3 days | 23 Oct 2003 | 7 | — | MPC · JPL |
| 0 | 2003 UF363 | MBA-M | 18.0 | 1.1 km | multiple | 2003–2020 | 10 Nov 2020 | 52 | Alt.: 2015 KJ106 | MPC · JPL |
| 0 | 2003 UH363 | MBA-M | 17.6 | 1.7 km | multiple | 2003–2017 | 25 Oct 2017 | 38 | — | MPC · JPL |
| 0 | 2003 UK363 | MBA-M | 17.54 | 1.7 km | multiple | 1996–2021 | 10 Nov 2021 | 75 | — | MPC · JPL |
| 1 | 2003 UM363 | MBA-M | 19.0 | 670 m | multiple | 2003–2020 | 15 Sep 2020 | 26 | — | MPC · JPL |
| 0 | 2003 UO363 | MBA-O | 17.20 | 2.0 km | multiple | 2003–2021 | 14 Apr 2021 | 59 | — | MPC · JPL |
| 0 | 2003 UR363 | MBA-O | 17.5 | 1.8 km | multiple | 1998–2019 | 28 Dec 2019 | 38 | Alt.: 2008 SK230 | MPC · JPL |
| 0 | 2003 US363 | MBA-M | 17.04 | 2.2 km | multiple | 1997–2021 | 27 Nov 2021 | 170 | Alt.: 2006 HX106 | MPC · JPL |
| 0 | 2003 UT363 | MBA-I | 18.1 | 710 m | multiple | 2000–2019 | 30 Jun 2019 | 98 | — | MPC · JPL |
| 1 | 2003 UF364 | MBA-I | 19.0 | 470 m | multiple | 2003–2020 | 23 Aug 2020 | 70 | — | MPC · JPL |
| 0 | 2003 UH364 | MBA-M | 17.6 | 1.3 km | multiple | 2003–2020 | 20 Oct 2020 | 85 | Alt.: 2016 UU106 | MPC · JPL |
| 0 | 2003 UJ364 | MBA-I | 17.5 | 940 m | multiple | 2003–2019 | 27 Nov 2019 | 65 | Alt.: 2015 TG161 | MPC · JPL |
| 0 | 2003 UK364 | MBA-M | 17.65 | 1.2 km | multiple | 1998–2020 | 08 Oct 2020 | 71 | Alt.: 2015 KD123 | MPC · JPL |
| 1 | 2003 UN364 | MBA-I | 19.2 | 430 m | multiple | 2003–2020 | 13 Sep 2020 | 30 | Disc.: Spacewatch Added on 17 June 2021 Alt.: 2020 PM31 | MPC · JPL |
| 0 | 2003 UO364 | MBA-O | 16.6 | 2.7 km | multiple | 2003–2021 | 10 Jan 2021 | 115 | — | MPC · JPL |
| 0 | 2003 UP364 | MBA-M | 18.1 | 1.0 km | multiple | 1999–2020 | 23 Aug 2020 | 38 | — | MPC · JPL |
| 0 | 2003 UQ364 | MBA-O | 17.3 | 1.9 km | multiple | 2003–2021 | 17 Jan 2021 | 52 | — | MPC · JPL |
| 2 | 2003 UR364 | MBA-I | 19.09 | 450 m | multiple | 2003–2021 | 29 Oct 2021 | 36 | Alt.: 2021 SW26 | MPC · JPL |
| 0 | 2003 UV364 | MBA-I | 18.24 | 670 m | multiple | 2003–2021 | 11 Sep 2021 | 51 | — | MPC · JPL |
| 0 | 2003 UZ364 | MBA-O | 16.30 | 3.1 km | multiple | 2001–2022 | 07 Jan 2022 | 215 | Alt.: 2001 FD239 | MPC · JPL |
| 0 | 2003 UF365 | MBA-M | 18.26 | 1.2 km | multiple | 2003–2021 | 24 Nov 2021 | 51 | Disc.: Spacewatch Added on 5 November 2021 | MPC · JPL |
| 0 | 2003 UL365 | MBA-M | 17.46 | 1.4 km | multiple | 2003–2022 | 27 Jan 2022 | 173 | — | MPC · JPL |
| 0 | 2003 UM365 | MBA-O | 16.90 | 2.3 km | multiple | 2003–2021 | 09 May 2021 | 73 | Alt.: 2010 GU182, 2016 GS91 | MPC · JPL |
| 0 | 2003 UN365 | MBA-M | 18.0 | 1.1 km | multiple | 2003–2020 | 14 Oct 2020 | 43 | Alt.: 2009 DK76 | MPC · JPL |
| 0 | 2003 UP365 | MBA-I | 18.86 | 500 m | multiple | 2003–2022 | 27 Jan 2022 | 53 | Alt.: 2003 UA442 | MPC · JPL |
| 0 | 2003 US365 | MBA-M | 17.5 | 1.3 km | multiple | 2003–2020 | 13 Sep 2020 | 66 | Alt.: 2016 SB43 | MPC · JPL |
| 0 | 2003 UU365 | MBA-M | 17.9 | 1.1 km | multiple | 2003–2020 | 10 Dec 2020 | 63 | Alt.: 2010 JZ114 | MPC · JPL |
| 0 | 2003 UZ365 | MBA-M | 18.4 | 880 m | multiple | 2003–2020 | 19 Nov 2020 | 36 | Alt.: 2007 RZ115 | MPC · JPL |
| 0 | 2003 UB366 | MBA-O | 16.30 | 3.1 km | multiple | 2003–2021 | 06 Dec 2021 | 89 | Alt.: 2010 DR32 | MPC · JPL |
| 0 | 2003 UG366 | MBA-O | 16.90 | 2.3 km | multiple | 2003–2022 | 10 Jan 2022 | 87 | Alt.: 2016 AO156 | MPC · JPL |
| 4 | 2003 UV366 | MBA-I | 19.4 | 390 m | multiple | 2001–2003 | 15 Nov 2003 | 15 | Alt.: 2001 FT239 | MPC · JPL |
| 0 | 2003 UW366 | MBA-O | 17.1 | 2.1 km | multiple | 2003–2019 | 26 Oct 2019 | 48 | — | MPC · JPL |
| 1 | 2003 UN367 | MBA-M | 18.4 | 620 m | multiple | 2003–2021 | 07 Feb 2021 | 19 | Disc.: Spacewatch Added on 5 November 2021 | MPC · JPL |
| 0 | 2003 UO367 | MBA-M | 17.4 | 980 m | multiple | 2003–2021 | 16 Jan 2021 | 92 | Disc.: Spacewatch Added on 17 January 2021 Alt.: 2017 BQ119 | MPC · JPL |
| 0 | 2003 UQ367 | MBA-I | 18.33 | 640 m | multiple | 1992–2021 | 31 Aug 2021 | 55 | — | MPC · JPL |
| 1 | 2003 UV367 | MBA-M | 18.2 | 960 m | multiple | 2003–2020 | 17 Sep 2020 | 36 | Disc.: Spacewatch Added on 17 January 2021 Alt.: 2016 TL142 | MPC · JPL |
| 0 | 2003 UD368 | MBA-I | 18.3 | 650 m | multiple | 2003–2020 | 20 Jul 2020 | 71 | Alt.: 2016 GA176 | MPC · JPL |
| 0 | 2003 UF368 | MBA-O | 16.8 | 2.4 km | multiple | 2003–2019 | 07 Sep 2019 | 65 | Alt.: 2005 EX210, 2010 ED115, 2014 WV318 | MPC · JPL |
| 0 | 2003 US368 | MBA-O | 16.28 | 3.1 km | multiple | 2003–2022 | 27 Jan 2022 | 89 | Alt.: 2014 WD212 | MPC · JPL |
| 0 | 2003 UF369 | MBA-I | 17.3 | 1.0 km | multiple | 2001–2021 | 18 Jan 2021 | 178 | Alt.: 2013 WN68 | MPC · JPL |
| 0 | 2003 UN369 | MBA-I | 18.1 | 710 m | multiple | 2003–2020 | 16 Dec 2020 | 76 | — | MPC · JPL |
| 2 | 2003 UT369 | MBA-I | 19.08 | 450 m | multiple | 2003–2017 | 10 Nov 2017 | 21 | — | MPC · JPL |
| 0 | 2003 UU369 | MBA-M | 17.25 | 2.0 km | multiple | 2003–2021 | 26 Oct 2021 | 152 | — | MPC · JPL |
| 0 | 2003 UV369 | MBA-M | 17.8 | 1.2 km | multiple | 2003–2020 | 10 Oct 2020 | 37 | Disc.: LPL/Spacewatch II Added on 17 January 2021 | MPC · JPL |
| – | 2003 UW369 | MBA-O | 18.7 | 1.0 km | single | 3 days | 24 Oct 2003 | 7 | — | MPC · JPL |
| 0 | 2003 UA370 | MBA-O | 16.0 | 3.5 km | multiple | 2003–2021 | 17 Jan 2021 | 171 | Alt.: 2010 FW42, 2014 WE475, 2016 CN63 | MPC · JPL |
| 0 | 2003 UC370 | MBA-I | 18.64 | 560 m | multiple | 2003–2021 | 07 Apr 2021 | 85 | Alt.: 2005 EL307, 2006 SJ68 | MPC · JPL |
| 0 | 2003 UO370 | MBA-I | 19.2 | 430 m | multiple | 2003–2020 | 16 Dec 2020 | 42 | Disc.: Spacewatch Added on 9 March 2021 | MPC · JPL |
| 0 | 2003 UT370 | MBA-I | 18.36 | 630 m | multiple | 2003–2021 | 31 Mar 2021 | 135 | Alt.: 2013 YA7, 2016 SO34 | MPC · JPL |
| 0 | 2003 UV370 | MBA-O | 16.5 | 2.8 km | multiple | 2003–2020 | 11 Dec 2020 | 104 | Alt.: 2013 JU4 | MPC · JPL |
| 0 | 2003 UZ370 | MBA-M | 17.8 | 1.2 km | multiple | 2003–2020 | 16 Jun 2020 | 39 | — | MPC · JPL |
| 1 | 2003 UB371 | MBA-M | 17.2 | 1.1 km | multiple | 2003–2019 | 06 Jul 2019 | 73 | — | MPC · JPL |
| 0 | 2003 UG371 | MBA-M | 16.85 | 1.8 km | multiple | 2003–2022 | 05 Jan 2022 | 162 | — | MPC · JPL |
| 0 | 2003 UK371 | MBA-M | 17.5 | 940 m | multiple | 2003–2020 | 10 Dec 2020 | 58 | — | MPC · JPL |
| 0 | 2003 UM371 | MBA-M | 17.4 | 1.8 km | multiple | 2003–2017 | 09 Dec 2017 | 55 | — | MPC · JPL |
| 0 | 2003 UW371 | MBA-M | 17.5 | 1.3 km | multiple | 1994–2020 | 17 Oct 2020 | 192 | Alt.: 2003 OW7, 2011 GW59 | MPC · JPL |
| 0 | 2003 UA372 | MBA-M | 18.06 | 1.0 km | multiple | 2003–2021 | 30 Nov 2021 | 59 | — | MPC · JPL |
| 0 | 2003 UE372 | MBA-O | 16.9 | 2.3 km | multiple | 2003–2020 | 23 Nov 2020 | 49 | — | MPC · JPL |
| 0 | 2003 UL372 | MBA-O | 17.4 | 1.8 km | multiple | 2003–2019 | 03 Dec 2019 | 38 | — | MPC · JPL |
| 1 | 2003 US372 | MBA-I | 18.0 | 750 m | multiple | 2003–2020 | 01 Jan 2020 | 26 | — | MPC · JPL |
| 0 | 2003 UB373 | MBA-O | 16.4 | 2.9 km | multiple | 2003–2019 | 05 Nov 2019 | 93 | — | MPC · JPL |
| 0 | 2003 UK373 | MBA-O | 18.2 | 1.3 km | multiple | 2003–2017 | 19 May 2017 | 33 | — | MPC · JPL |
| 0 | 2003 UN373 | MBA-M | 17.03 | 2.6 km | multiple | 2003–2022 | 27 Jan 2022 | 122 | Alt.: 2010 MH106 | MPC · JPL |
| 2 | 2003 UP373 | MBA-I | 19.4 | 390 m | multiple | 2003–2019 | 03 Dec 2019 | 28 | — | MPC · JPL |
| 1 | 2003 UQ373 | MBA-O | 16.8 | 2.4 km | multiple | 2003–2021 | 04 Jan 2021 | 85 | — | MPC · JPL |
| 0 | 2003 UT373 | MBA-I | 18.29 | 650 m | multiple | 2003–2021 | 30 Nov 2021 | 146 | Alt.: 2014 WY205 | MPC · JPL |
| 0 | 2003 UA374 | MBA-M | 17.6 | 900 m | multiple | 2003–2021 | 07 Feb 2021 | 60 | — | MPC · JPL |
| 0 | 2003 UE374 | MBA-M | 17.64 | 1.7 km | multiple | 2003–2021 | 08 Nov 2021 | 83 | — | MPC · JPL |
| 1 | 2003 UF374 | MBA-M | 18.6 | 570 m | multiple | 2003–2021 | 16 Jan 2021 | 53 | Disc.: SDSS Added on 17 January 2021 | MPC · JPL |
| 0 | 2003 UG374 | MBA-I | 19.0 | 470 m | multiple | 2003–2018 | 14 Sep 2018 | 35 | Alt.: 2007 UB121 | MPC · JPL |
| 0 | 2003 UM374 | MBA-M | 17.9 | 1.1 km | multiple | 2003–2021 | 13 Jan 2021 | 75 | — | MPC · JPL |
| 0 | 2003 UN374 | MBA-O | 16.7 | 2.5 km | multiple | 2003–2020 | 10 Nov 2020 | 57 | Alt.: 2014 OO384 | MPC · JPL |
| 0 | 2003 UU374 | MBA-O | 16.5 | 2.8 km | multiple | 2003–2021 | 17 Jan 2021 | 125 | Alt.: 2016 CX208 | MPC · JPL |
| 0 | 2003 UD375 | MBA-I | 18.6 | 570 m | multiple | 2003–2021 | 04 Oct 2021 | 88 | — | MPC · JPL |
| 0 | 2003 UE375 | MBA-O | 16.6 | 2.7 km | multiple | 2003–2020 | 12 Dec 2020 | 82 | Alt.: 2003 SE367, 2014 UT123, 2017 CR12 | MPC · JPL |
| 0 | 2003 UL375 | MBA-I | 18.3 | 650 m | multiple | 2003–2021 | 22 Jan 2021 | 109 | — | MPC · JPL |
| 0 | 2003 UM375 | MBA-I | 19.0 | 470 m | multiple | 2003–2020 | 17 Nov 2020 | 52 | — | MPC · JPL |
| 0 | 2003 UN375 | MBA-O | 17.10 | 2.1 km | multiple | 2002–2021 | 17 Apr 2021 | 82 | Alt.: 2016 EU191 | MPC · JPL |
| 0 | 2003 US375 | MBA-M | 17.7 | 1.6 km | multiple | 1994–2017 | 10 Nov 2017 | 35 | — | MPC · JPL |
| 1 | 2003 UT375 | MCA | 20.4 | 250 m | multiple | 2003–2017 | 13 Dec 2017 | 59 | Alt.: 2010 RS110, 2010 TL29 | MPC · JPL |
| 0 | 2003 UY375 | MBA-I | 18.43 | 610 m | multiple | 2003–2021 | 27 Oct 2021 | 108 | — | MPC · JPL |
| 2 | 2003 UD376 | MBA-I | 18.7 | 540 m | multiple | 2003–2019 | 27 May 2019 | 36 | Alt.: 2009 HA35 | MPC · JPL |
| 1 | 2003 UH376 | MBA-O | 17.03 | 2.2 km | multiple | 2003–2022 | 26 Jan 2022 | 24 | Alt.: 2014 SD228 | MPC · JPL |
| 2 | 2003 UK376 | MBA-I | 19.3 | 410 m | multiple | 2003–2016 | 26 Sep 2016 | 35 | Alt.: 2016 QQ51 | MPC · JPL |
| 0 | 2003 UN376 | MBA-M | 18.0 | 1.1 km | multiple | 1999–2020 | 17 Oct 2020 | 112 | — | MPC · JPL |
| 3 | 2003 UQ376 | MBA-M | 18.5 | 840 m | multiple | 2003–2020 | 13 Aug 2020 | 27 | Disc.: SDSS Added on 22 July 2020 | MPC · JPL |
| 0 | 2003 UY376 | MBA-O | 15.9 | 3.7 km | multiple | 2003–2021 | 16 Jan 2021 | 121 | Alt.: 2006 DF18 | MPC · JPL |
| 0 | 2003 UC377 | MBA-O | 17.25 | 2.0 km | multiple | 1998–2021 | 15 Apr 2021 | 86 | Alt.: 2016 EM163, 2018 VO101 | MPC · JPL |
| 0 | 2003 UH377 | MBA-M | 17.13 | 2.1 km | multiple | 2003–2021 | 09 Dec 2021 | 159 | Alt.: 2012 SM26 | MPC · JPL |
| 0 | 2003 UL377 | MBA-I | 18.48 | 600 m | multiple | 2003–2021 | 27 Nov 2021 | 78 | Alt.: 2014 UL93 | MPC · JPL |
| – | 2003 UQ377 | MBA-O | 17.9 | 1.5 km | single | 5 days | 23 Oct 2003 | 6 | — | MPC · JPL |
| 0 | 2003 UX377 | MBA-O | 16.76 | 2.5 km | multiple | 2003–2020 | 06 Dec 2020 | 122 | — | MPC · JPL |
| 0 | 2003 UY377 | MBA-O | 16.8 | 2.4 km | multiple | 2003–2021 | 08 Jan 2021 | 149 | Alt.: 2009 WF244, 2011 FK136 | MPC · JPL |
| 0 | 2003 UD378 | MBA-O | 16.36 | 3.0 km | multiple | 2003–2021 | 09 Apr 2021 | 162 | Alt.: 2012 LF20, 2015 AE23 | MPC · JPL |
| 3 | 2003 UE378 | MBA-I | 18.9 | 490 m | multiple | 2003–2014 | 25 Oct 2014 | 32 | Alt.: 2014 SQ274 | MPC · JPL |
| 1 | 2003 UM378 | MBA-I | 18.4 | 620 m | multiple | 2003–2020 | 21 Jun 2020 | 59 | — | MPC · JPL |
| 0 | 2003 UN378 | HIL | 16.7 | 2.5 km | multiple | 2003–2020 | 23 Dec 2020 | 57 | — | MPC · JPL |
| 3 | 2003 UR378 | MBA-O | 18.3 | 1.2 km | multiple | 2003–2020 | 14 Sep 2020 | 18 | Disc.: SDSS Added on 11 May 2021 Alt.: 2020 QK70 | MPC · JPL |
| 0 | 2003 UW378 | MBA-O | 16.7 | 2.5 km | multiple | 2003–2021 | 04 Jan 2021 | 79 | Alt.: 2003 UK338, 2006 HF145 | MPC · JPL |
| 0 | 2003 UX378 | MBA-I | 18.6 | 570 m | multiple | 2003–2020 | 22 Jan 2020 | 41 | Alt.: 2007 TR382 | MPC · JPL |
| 0 | 2003 UA379 | MBA-O | 16.1 | 3.4 km | multiple | 2001–2021 | 18 Jan 2021 | 275 | Alt.: 2011 EV10, 2014 WG50 | MPC · JPL |
| 0 | 2003 UC379 | MBA-I | 18.69 | 540 m | multiple | 2003–2022 | 26 Jan 2022 | 86 | Alt.: 2010 UG90, 2015 BW261 | MPC · JPL |
| 0 | 2003 UE379 | MBA-O | 17.5 | 1.8 km | multiple | 2003–2021 | 15 Jan 2021 | 83 | Alt.: 2014 UC185 | MPC · JPL |
| 1 | 2003 UM379 | MBA-O | 18.1 | 1.3 km | multiple | 2003–2019 | 28 Nov 2019 | 28 | — | MPC · JPL |
| 0 | 2003 UR379 | MBA-O | 17.2 | 2.0 km | multiple | 2003–2021 | 10 Jan 2021 | 40 | Alt.: 2016 AG138 | MPC · JPL |
| 0 | 2003 US379 | MCA | 18.78 | 520 m | multiple | 2003–2021 | 26 Nov 2021 | 57 | Alt.: 2010 RE17 | MPC · JPL |
| 0 | 2003 UW379 | MBA-O | 16.9 | 2.3 km | multiple | 2003–2021 | 18 Jan 2021 | 111 | Alt.: 2014 WX30 | MPC · JPL |
| 0 | 2003 UZ379 | MBA-O | 16.88 | 2.3 km | multiple | 2003–2021 | 28 Nov 2021 | 73 | Disc.: SDSS Added on 17 January 2021 Alt.: 2010 BQ98 | MPC · JPL |