# List of unnumbered minor planets: 1998

This is a partial list of unnumbered minor planets for principal provisional designations assigned between 1 January and 31 December 1998. As of June 2024, a total of 341 bodies remain unnumbered for this period. Also see previous and next year.
| Near-Earth obj. | MBA (inner) | MBA (outer) | Centaur |
| Mars-crosser | MBA (middle) | Jupiter trojan | Trans-Neptunian obj. |
| Unclassified | | | |

## A

| 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 |
| 6 | 1998 AK10 | MCA | 20.9 | 200 m | single | 33 days | 02 Feb 1998 | 26 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 AA12 | MBA-I | 18.72 | 540 m | multiple | 1998–2021 | 15 Apr 2021 | 42 | Disc.: Spacewatch | MPC · JPL |

## B

| 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 | 1998 BY7 | APO | 21.47 | 180 m | multiple | 1998–2021 | 04 Aug 2021 | 156 | Disc.: Spacewatch Potentially hazardous object | MPC · JPL |
| 7 | 1998 BT13 | APO | 26.5 | 18 m | single | 6 days | 30 Jan 1998 | 15 | Disc.: Spacewatch | MPC · JPL |
| 2 | 1998 BZ13 | MBA-I | 19.39 | 410 m | multiple | 1998–2023 | 27 Mar 2023 | 42 | Disc.: Spacewatch Alt.: 2016 EF148 | MPC · JPL |
| 0 | 1998 BJ21 = (740029) | MBA-I | 17.7 | 860 m | multiple | 1998–2020 | 23 Nov 2020 | 99 | Disc.: Spacewatch | MPC · JPL |
| 7 | 1998 BR26 | APO | 26.0 | 22 m | single | 1 day | 31 Jan 1998 | 19 | Disc.: Spacewatch | MPC · JPL |
| 2 | 1998 BJ28 | MBA-M | 17.9 | 1.1 km | multiple | 1998–2020 | 14 Feb 2020 | 57 | Disc.: Spacewatch Added on 22 July 2020 Alt.: 2016 ET53 | MPC · JPL |
| 0 | 1998 BB29 = (70059) | MBA-O | 16.92 | 2.3 km | multiple | 1998–2021 | 13 Apr 2021 | 92 | Disc.: Spacewatch Alt.: 2013 TG95, 2015 FV48 | MPC · JPL |
| 0 | 1998 BJ29 = (740030) | MBA-I | 18.14 | 700 m | multiple | 1993–2020 | 15 Feb 2020 | 51 | Disc.: Spacewatch Added on 21 August 2021 Alt.: 2004 XU142 | MPC · JPL |
| 7 | 1998 BC34 | Asteroid | 20.8 | 390 m | single | 11 days | 02 Feb 1998 | 15 | Disc.: Spacewatch MCA at MPC | MPC · JPL |
| 0 | 1998 BN35 | MBA-M | 18.14 | 700 m | multiple | 1998–2021 | 11 Nov 2021 | 36 | Disc.: Spacewatch Alt.: 2015 KR61 | MPC · JPL |

## D

| 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 | 1998 DO11 | MBA-O | 16.6 | 2.7 km | multiple | 1998–2021 | 10 Jun 2021 | 203 | Disc.: NEAT/GEODSS Alt.: 2014 YJ47 | MPC · JPL |
| 6 | 1998 DX11 | APO | 27.0 | 14 m | single | 3 days | 26 Feb 1998 | 13 | Disc.: Spacewatch | MPC · JPL |
| 8 | 1998 DV20 | APO | 20.3 | 310 m | single | 10 days | 06 Mar 1998 | 11 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 DH22 | MBA-I | 19.9 | 310 m | multiple | 1998–2021 | 17 Feb 2021 | 141 | Disc.: Spacewatch Added on 17 June 2021 Alt.: 2011 BR143 | MPC · JPL |
| 0 | 1998 DA25 = (757036) | MBA-O | 16.97 | 2.2 km | multiple | 1998–2021 | 08 Sep 2021 | 79 | Disc.: Spacewatch Added on 22 July 2020 Alt.: 2020 HF22 | MPC · JPL |
| 0 | 1998 DM25 | MBA-I | 18.9 | 490 m | multiple | 1998–2021 | 10 Apr 2021 | 35 | — Added on 29 January 2022 | MPC · JPL |
| 0 | 1998 DF26 | MBA-I | 18.96 | 480 m | multiple | 1998–2021 | 08 May 2021 | 43 | Disc.: Spacewatch | MPC · JPL |
| 7 | 1998 DK36 | ATI | 25.0 | 36 m | single | 1 day | 24 Feb 1998 | 4 | Disc.: Mauna Kea Obs. | MPC · JPL |
| 0 | 1998 DV38 | MBA-M | 17.9 | 1.5 km | multiple | 1998–2017 | 01 Jul 2017 | 39 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 DX38 | MBA-I | 18.8 | 520 m | multiple | 1998–2020 | 17 Dec 2020 | 47 | Disc.: Spacewatch | MPC · JPL |

## E

| 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 |
| 3 | 1998 EE3 | APO | 27.2 | 13 m | single | 3 days | 04 Mar 1998 | 11 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 EO3 | MBA-I | 18.7 | 540 m | multiple | 1998–2020 | 15 May 2020 | 35 | Disc.: Spacewatch Added on 19 October 2020 | MPC · JPL |
| 2 | 1998 EP4 | APO | 21.5 | 180 m | multiple | 1996–1998 | 05 Apr 1998 | 71 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 EK22 = (720060) | MBA-O | 16.94 | 2.3 km | multiple | 1998–2021 | 03 May 2021 | 93 | Disc.: Spacewatch Alt.: 2015 BU119 | MPC · JPL |

## F

| 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 | 1998 FL5 | APO | 21.52 | 170 m | multiple | 1998–2022 | 19 Oct 2022 | 114 | Disc.: LINEAR | MPC · JPL |
| 0 | 1998 FM9 | AMO | 19.70 | 410 m | multiple | 1998–2022 | 22 Jan 2022 | 121 | Disc.: LINEAR | MPC · JPL |
| 2 | 1998 FS11 | MCA | 19.4 | 390 m | multiple | 1998–2005 | 09 Mar 2005 | 82 | Disc.: NEAT/GEODSS | MPC · JPL |
| 6 | 1998 FG12 | APO | 21.0 | 220 m | single | 39 days | 02 May 1998 | 42 | Disc.: LINEAR | MPC · JPL |
| 4 | 1998 FS144 | TNO | 6.7 | 235 km | multiple | 1998–2022 | 26 Apr 2022 | 22 | Disc.: Cerro Tololo LoUTNOs, cubewano (hot), BR-mag: 1.53; taxonomy: IR | MPC · JPL |

## G

| 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 | 1998 GO | MBA-I | 18.5 | 590 m | multiple | 1998–2020 | 04 Jan 2020 | 53 | Disc.: Spacewatch Alt.: 2013 EQ27, 2013 EO179 | MPC · JPL |
| 0 | 1998 GC1 | AMO | 21.27 | 210 m | multiple | 1998–2023 | 10 Dec 2023 | 95 | Disc.: LINEAR | MPC · JPL |
| 0 | 1998 GL10 | AMO | 19.0 | 560 m | multiple | 1998–2015 | 21 May 2015 | 286 | Disc.: LINEAR Alt.: 2014 UW34 | MPC · JPL |
| 1 | 1998 GM10 | MCA | 19.3 | 410 m | multiple | 1998–2021 | 19 Jun 2021 | 84 | Disc.: LINEAR Alt.: 2021 ES4 | MPC · JPL |
| 0 | 1998 GF13 = (740031) | MBA-I | 17.98 | 750 m | multiple | 1998–2022 | 25 Jan 2022 | 127 | Disc.: Spacewatch | MPC · JPL |

## H

| 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 |
| 4 | 1998 HH1 | AMO | 23.2 | 81 m | single | 32 days | 19 May 1998 | 40 | Disc.: Spacewatch | MPC · JPL |
| 3 | 1998 HM1 | APO | 24.4 | 47 m | single | 7 days | 25 Apr 1998 | 33 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 HK5 | MBA-M | 17.9 | 1.1 km | multiple | 1998–2020 | 23 Jun 2020 | 67 | Disc.: Spacewatch Added on 22 July 2020 | MPC · JPL |
| 2 | 1998 HZ7 | MBA-O | 17.2 | 2.0 km | multiple | 1998–2004 | 18 Jul 2004 | 102 | Disc.: Kleť Obs. | MPC · JPL |
| 0 | 1998 HX15 = (720061) | MBA-I | 17.5 | 940 m | multiple | 1998–2019 | 25 Oct 2019 | 73 | Disc.: Spacewatch Added on 22 July 2020 Alt.: 2002 JV148, 2010 EM148 | MPC · JPL |
| 0 | 1998 HE|16} = (720062)} | MBA-M | 17.45 | 1.4 km | multiple | 1998–2021 | 13 Sep 2021 | 95 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 HX27 = (720063) | MBA-O | 16.52 | 2.8 km | multiple | 1998–2021 | 11 Jul 2021 | 77 | Disc.: Spacewatch Added on 22 July 2020 Alt.: 2009 DO34, 2010 GM87 | MPC · JPL |
| 2 | 1998 HT31 | APO | 20.8 | 250 m | single | 19 days | 09 May 1998 | 133 | Disc.: NEAT/GEODSS Potentially hazardous object | MPC · JPL |
| 1 | 1998 HD43 | MBA-I | 19.42 | 450 m | multiple | 1998–2025 | 20 Feb 2025 | 37 | Disc.: Spacewatch Added on 24 December 2021 | MPC · JPL |
| 0 | 1998 HH49 | APO | 21.43 | 190 m | multiple | 1998–2023 | 17 Oct 2023 | 25 | Disc.: Spacewatch Potentially hazardous object | MPC · JPL |
| 9 | 1998 HP126 | ATE | 25.77 | 25 m | single | 1 day | 25 Apr 1998 | 15 | Disc.: LINEAR Added on 21 August 2021 | MPC · JPL |
| 3 | 1998 HL151 | TNO | 8.1 | 100 km | multiple | 1998–2013 | 08 May 2013 | 25 | Disc.: Mauna Kea Obs. LoUTNOs, other TNO, BR-mag: 1.06 | MPC · JPL |
| 2 | 1998 HN151 | TNO | 8.3 | 91 km | multiple | 1998–2017 | 01 Apr 2017 | 31 | Disc.: Mauna Kea Obs. LoUTNOs, other TNO | MPC · JPL |
| 3 | 1998 HO151 | TNO | 8.2 | 95 km | multiple | 1998–2017 | 30 Mar 2017 | 19 | Disc.: Mauna Kea Obs. LoUTNOs, other TNO | MPC · JPL |
| E | 1998 HR151 | TNO | 8.6 | 65 km | single | 63 days | 30 Jun 1998 | 11 | Disc.: Mauna Kea Obs. LoUTNOs, cubewano? | MPC · JPL |
| 0 | 1998 HF159 | MBA-I | 18.6 | 570 m | multiple | 1998–2019 | 24 Sep 2019 | 61 | Disc.: Spacewatch | MPC · JPL |

## J

| 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 | 1998 JG2 | MCA | 18.9 | 490 m | multiple | 1998–2020 | 23 Jun 2020 | 104 | Disc.: Whipple Obs. | MPC · JPL |

## K

| 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 |
| 4 | 1998 KH | APO | 19.2 | 510 m | multiple | 1998–2015 | 01 Jun 2015 | 133 | Disc.: LINEAR | MPC · JPL |
| 4 | 1998 KD3 | APO | 20.6 | 270 m | single | 28 days | 21 Jun 1998 | 172 | Disc.: LINEAR AMO at MPC | MPC · JPL |
| 1 | 1998 KF3 | AMO | 19.14 | 520 m | multiple | 1998–2017 | 20 Jul 2017 | 87 | Disc.: LINEAR | MPC · JPL |
| 8 | 1998 KO3 | APO | 19.5 | 450 m | single | 6 days | 30 May 1998 | 60 | Disc.: LINEAR | MPC · JPL |
| 2 | 1998 KF6 | MCA | 20.3 | 260 m | multiple | 1998–2019 | 08 May 2019 | 70 | Disc.: LINEAR Alt.: 2013 JT6 | MPC · JPL |
| 0 | 1998 KF11 | MBA-M | 18.62 | 1.1 km | multiple | 1998–2021 | 28 Sep 2021 | 61 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 KK16 | MCA | 17.5 | 1.8 km | multiple | 1998–2020 | 23 Dec 2020 | 123 | Disc.: LINEAR | MPC · JPL |
| 6 | 1998 KJ17 | AMO | 23.5 | 71 m | single | 8 days | 05 Jun 1998 | 59 | Disc.: LINEAR | MPC · JPL |
| 0 | 1998 KY26 | APO | 25.73 | 25 m | multiple | 1998–2024 | 01 May 2024 | 236 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 KC43 = (720064) | MBA-O | 15.71 | 4.0 km | multiple | 1998–2022 | 08 Jan 2022 | 156 | Disc.: Spacewatch Alt.: 2010 LU125, 2018 PK2 | MPC · JPL |
| 2 | 1998 KY61 | TNO | 7.3 | 115 km | multiple | 1998–2017 | 22 Aug 2017 | 58 | Disc.: Cerro Tololo LoUTNOs, cubewano (cold) | MPC · JPL |
| 4 | 1998 KS65 | TNO | 7.65 | 98 km | multiple | 1998–2021 | 12 Sep 2021 | 57 | Disc.: Cerro Tololo LoUTNOs, cubewano (cold), BR-mag: 1.73; taxonomy: RR-IR | MPC · JPL |
| E | 1998 KD66 | TNO | 8.9 | 57 km | single | 10 days | 30 May 1998 | 3 | Disc.: Cerro Tololo LoUTNOs, cubewano? | MPC · JPL |
| E | 1998 KE66 | TNO | 9.0 | 54 km | single | 10 days | 30 May 1998 | 3 | Disc.: Cerro Tololo LoUTNOs, cubewano? | MPC · JPL |
| E | 1998 KF66 | TNO | 9.8 | 52 km | single | 10 days | 30 May 1998 | 3 | Disc.: Cerro Tololo LoUTNOs, plutino? | MPC · JPL |
| E | 1998 KG66 | TNO | 8.9 | 57 km | single | 10 days | 30 May 1998 | 3 | Disc.: Cerro Tololo LoUTNOs, cubewano? | MPC · JPL |
| 0 | 1998 KG69 = (740032) | MBA-M | 17.45 | 1.8 km | multiple | 1998–2021 | 30 Jul 2021 | 96 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 KH69 | MBA-I | 18.2 | 680 m | multiple | 1998–2020 | 16 Oct 2020 | 39 | Disc.: Spacewatch | MPC · JPL |

## L

| 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 | 1998 LE | APO | 20.36 | 300 m | multiple | 1998–2024 | 19 May 2024 | 111 | Disc.: LINEAR | MPC · JPL |

## M

| 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 | 1998 MN = (740033) | MBA-I | 17.44 | 970 m | multiple | 1998–2022 | 10 Jan 2022 | 108 | Disc.: Spacewatch Alt.: 2016 NF18 | MPC · JPL |
| 0 | 1998 MS | HUN | 18.39 | 620 m | multiple | 1998–2022 | 25 Jan 2022 | 62 | Disc.: Spacewatch Added on 24 December 2021 | MPC · JPL |
| 0 | 1998 MS2 | AMO | 20.4 | 300 m | multiple | 1998–2023 | 12 Jan 2023 | 145 | Disc.: CSS | MPC · JPL |
| 0 | 1998 MQ4 | MBA-M | 17.95 | 760 m | multiple | 1998–2019 | 27 Nov 2019 | 154 | Disc.: Spacewatch Alt.: 2011 UK386 | MPC · JPL |
| 0 | 1998 ML5 = (720065) | MBA-O | 16.16 | 3.3 km | multiple | 1998–2021 | 29 Oct 2021 | 183 | Disc.: Spacewatch Alt.: 2008 AP99, 2010 OM | MPC · JPL |
| 7 | 1998 MV5 | APO | 24.0 | 56 m | single | 9 days | 02 Jul 1998 | 27 | Disc.: LINEAR | MPC · JPL |
| 0 | 1998 MM14 | MCA | 18.66 | 550 m | multiple | 1998–2021 | 31 Oct 2021 | 84 | Disc.: LINEAR | MPC · JPL |

## O

| 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 | 1998 OL4 | MBA-M | 17.47 | 1.8 km | multiple | 1998–2021 | 08 Dec 2021 | 64 | Disc.: Spacewatch Added on 30 September 2021 Alt.: 2021 QV | MPC · JPL |
| 7 | 1998 OP4 | AMO | 24.0 | 56 m | single | 4 days | 31 Jul 1998 | 21 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 OS15 = (720066) | MBA-M | 17.0 | 1.7 km | multiple | 1998–2020 | 11 Oct 2020 | 162 | Disc.: Spacewatch Alt.: 2010 LX73 | MPC · JPL |

## Q

| 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 |
| 3 | 1998 QQ | APO | 18.7 | 650 m | multiple | 1998–2019 | 18 Oct 2019 | 172 | Disc.: LINEAR Alt.: 2015 TV350 | MPC · JPL |
| 0 | 1998 QF1 | MCA | 18.82 | 510 m | multiple | 1998–2022 | 06 Jan 2022 | 111 | Disc.: LINEAR | MPC · JPL |
| 1 | 1998 QH1 | AMO | 20.7 | 260 m | multiple | 1998–2002 | 14 Sep 2002 | 47 | Disc.: LINEAR | MPC · JPL |
| 3 | 1998 QJ1 | CEN | 16.5 | 2.9 km | single | 62 days | 18 Oct 1998 | 51 | Disc.: LINEAR | MPC · JPL |
| 0 | 1998 QE3 | MCA | 18.27 | 640 m | multiple | 1998–2024 | 06 Aug 2024 | 71 | Disc.: LINEAR | MPC · JPL |
| 5 | 1998 QV3 | AMO | 20.5 | 280 m | single | 58 days | 13 Oct 1998 | 63 | Disc.: LINEAR | MPC · JPL |
| 0 | 1998 QV27 | MCA | 19.02 | 500 m | multiple | 1998–2023 | 16 Apr 2023 | 59 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 QF28 | MBA-M | 17.64 | 1.7 km | multiple | 1998–2021 | 29 Aug 2021 | 69 | Disc.: Spacewatch Alt.: 2012 RC7 | MPC · JPL |
| 8 | 1998 QH28 | AMO | 22.9 | 93 m | single | 7 days | 30 Aug 1998 | 15 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 QK28 | APO | 19.54 | 450 m | multiple | 1998–2024 | 11 Jan 2024 | 586 | Disc.: LINEAR Potentially hazardous object | MPC · JPL |
| 0 | 1998 QP52 | MCA | 18.08 | 1.3 km | multiple | 1998–2022 | 09 Jan 2022 | 103 | Disc.: LINEAR | MPC · JPL |
| 0 | 1998 QJ56 | MCA | 18.0 | 1.1 km | multiple | 1998–2024 | 30 Jun 2024 | 122 | Disc.: LINEAR | MPC · JPL |
| 3 | 1998 QX56 | MBA-I | 18.8 | 520 m | multiple | 1998–2019 | 03 Oct 2019 | 42 | Disc.: Spacewatch | MPC · JPL |
| 2 | 1998 QO59 | MBA-I | 19.4 | 390 m | multiple | 1998–2018 | 08 Aug 2018 | 22 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 QU59 = (757037) | MBA-M | 17.90 | 1.1 km | multiple | 1998–2022 | 26 Jan 2022 | 67 | Disc.: Spacewatch Alt.: 2017 BM4 | MPC · JPL |
| 0 | 1998 QA62 | APO | 19.29 | 500 m | multiple | 1998-2022 | 12 Apr 2022 | 80 | Disc.: LINEAR Potentially hazardous object | MPC · JPL |
| 1 | 1998 QQ85 | MCA | 18.05 | 1.4 km | multiple | 1998–2021 | 29 Nov 2021 | 69 | Disc.: LINEAR Alt.: 2007 PN4 | MPC · JPL |
| 1 | 1998 QX104 | MCA | 19.69 | 360 m | multiple | 1995–2023 | 11 Oct 2023 | 31 | Disc.: ODAS | MPC · JPL |
| 5 | 1998 QA105 | AMO | 21.5 | 180 m | single | 58 days | 27 Oct 1998 | 24 | Disc.: Spacewatch | MPC · JPL |
| 3 | 1998 QA107 | MCA | 20.2 | 270 m | multiple | 1998–2018 | 14 Sep 2018 | 41 | Disc.: Spacewatch Alt.: 2008 RZ75 | MPC · JPL |
| 1 | 1998 QQ110 | MBA-M | 17.9 | 1.1 km | multiple | 1998–2015 | 10 Oct 2015 | 44 | Disc.: Spacewatch Alt.: 2015 TA182 | MPC · JPL |
| 0 | 1998 QA112 | MBA-I | 18.44 | 610 m | multiple | 1998–2021 | 05 Nov 2021 | 99 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 QK112 | MBA-M | 17.96 | 1.4 km | multiple | 1998–2021 | 07 Nov 2021 | 93 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 QL112 | MBA-O | 17.23 | 2.0 km | multiple | 1998–2021 | 25 Nov 2021 | 80 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 QM112 | MBA-O | 18.06 | 1.3 km | multiple | 1998–2023 | 23 Jul 2023 | 37 | Disc.: Spacewatch | MPC · JPL |

## R

| 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 |
| 2 | 1998 RC | MCA | 19.2 | 610 m | multiple | 1998–2020 | 26 Sep 2020 | 68 | Disc.: Spacewatch Added on 9 March 2021 Alt.: 2020 OO6 | MPC · JPL |
| 0 | 1998 RJ8 | MBA-O | 17.4 | 1.8 km | multiple | 1998–2019 | 25 Sep 2019 | 56 | Disc.: Spacewatch | MPC · JPL |
| 2 | 1998 RS8 | MBA-M | 18.3 | 1.2 km | multiple | 2007–2016 | 07 Nov 2016 | 30 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 RB10 = (740035) | MBA-I | 17.9 | 780 m | multiple | 1998–2017 | 13 Dec 2017 | 65 | Disc.: Spacewatch | MPC · JPL |
| 2 | 1998 RK10 | MBA-I | 18.7 | 540 m | multiple | 1998–2017 | 11 Dec 2017 | 48 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 RU10 = (720067) | MBA-I | 18.9 | 490 m | multiple | 1995–2020 | 16 Oct 2020 | 90 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 RJ11 | MBA-I | 19.21 | 450 m | multiple | 1998–2023 | 06 Sep 2023 | 54 | Disc.: Spacewatch Alt.: 2016 TT88 | MPC · JPL |
| 0 | 1998 RZ11 | MBA-I | 18.65 | 550 m | multiple | 1998–2021 | 12 May 2021 | 41 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 RK12 | MBA-I | 18.0 | 750 m | multiple | 1998–2021 | 15 Jan 2021 | 146 | Disc.: Spacewatch Alt.: 2010 AW120 | MPC · JPL |
| 0 | 1998 RL13 | MBA-M | 17.7 | 1.6 km | multiple | 1998–2017 | 25 Oct 2017 | 45 | Disc.: Spacewatch Alt.: 2003 UW394 | MPC · JPL |
| 0 | 1998 RO15 = (740036) | MBA-O | 16.79 | 2.4 km | multiple | 1998–2021 | 28 Nov 2021 | 101 | Disc.: Spacewatch Alt.: 2007 ES240 | MPC · JPL |
| 0 | 1998 RY20 | MBA-M | 18.08 | 780 m | multiple | 1998–2023 | 21 Aug 2023 | 37 | Disc.: Spacewatch Added on 22 July 2020 | MPC · JPL |
| 0 | 1998 RL21 | MBA-M | 18.86 | 540 m | multiple | 1998–2023 | 07 Sep 2023 | 66 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 RA22 = (757038) | MBA-I | 19.1 | 450 m | multiple | 1998–2020 | 15 Oct 2020 | 61 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 RJ81 | MBA-I | 19.61 | 350 m | multiple | 1998–2023 | 06 Aug 2023 | 24 | Disc.: Spacewatch Alt.: 2009 VG11 | MPC · JPL |
| 0 | 1998 RN81 | MBA-M | 18.0 | 1.1 km | multiple | 1998–2019 | 24 Dec 2019 | 49 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 RS81 | MBA-M | 17.84 | 1.5 km | multiple | 1998–2021 | 08 Nov 2021 | 60 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 RT81 | MBA-I | 18.91 | 490 m | multiple | 1998–2022 | 25 Jan 2022 | 34 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 RV81 | MBA-I | 19.52 | 370 m | multiple | 1998–2021 | 28 Sep 2021 | 28 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 RW81 | MBA-O | 17.5 | 1.8 km | multiple | 1998–2019 | 19 Dec 2019 | 31 | Disc.: DB Missing Added on 22 July 2020 | MPC · JPL |
| 2 | 1998 RX81 | MBA-I | 19.0 | 470 m | multiple | 1998–2020 | 07 Sep 2020 | 40 | Disc.: DB Missing Added on 19 October 2020 | MPC · JPL |
| 0 | 1998 RY81 | MBA-O | 17.08 | 2.1 km | multiple | 1998–2021 | 28 Oct 2021 | 55 | Disc.: Spacewatch Added on 5 November 2021 | MPC · JPL |

## S

| 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 | 1998 SM | MBA-M | 17.81 | 1.5 km | multiple | 1998–2021 | 27 Oct 2021 | 89 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 SG2 | AMO | 19.3 | 490 m | multiple | 1998–2018 | 12 Jul 2018 | 196 | Disc.: LONEOS | MPC · JPL |
| 0 | 1998 SH2 | APO | 20.8 | 383 m | multiple | 1998–2016 | 27 Oct 2016 | 144 | Disc.: Spacewatch Potentially hazardous object Alt.: 2016 EC156 | MPC · JPL |
| 1 | 1998 SP4 | MBA-M | 18.8 | 730 m | multiple | 1998–2021 | 03 Jan 2021 | 61 | Disc.: Spacewatch Alt.: 2011 SF2 | MPC · JPL |
| 6 | 1998 SS4 | AMO | 21.8 | 160 m | single | 24 days | 13 Oct 1998 | 36 | Disc.: LINEAR | MPC · JPL |
| 1 | 1998 SU4 | APO | 21.42 | 200 m | multiple | 1998–2014 | 30 Sep 2014 | 98 | Disc.: LINEAR Potentially hazardous object | MPC · JPL |
| 1 | 1998 SG7 | MBA-O | 17.75 | 1.6 km | multiple | 1998–2024 | 10 Sep 2024 | 33 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 SD9 | ATE | 24.09 | 54 m | multiple | 2008–2018 | 15 Sep 2018 | 115 | Disc.: LINEAR | MPC · JPL |
| 5 | 1998 SY14 | APO | 20.6 | 270 m | single | 125 days | 24 Jan 1999 | 68 | Disc.: LINEAR Potentially hazardous object | MPC · JPL |
| 2 | 1998 SZ14 | AMO | 19.1 | 540 m | multiple | 1998–2014 | 02 Jan 2014 | 66 | Disc.: LINEAR Alt.: 2013 WK103 | MPC · JPL |
| 0 | 1998 SL15 = (740037) | MBA-I | 18.3 | 650 m | multiple | 1998–2020 | 15 Sep 2020 | 97 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 SM16 | MBA-I | 18.25 | 670 m | multiple | 1998–2022 | 27 Jan 2022 | 66 | Disc.: Spacewatch Alt.: 2011 CQ77 | MPC · JPL |
| 0 | 1998 SL18 | MBA-M | 17.9 | 1.1 km | multiple | 1998–2021 | 07 Jan 2021 | 52 | Disc.: Spacewatch Added on 22 July 2020 Alt.: 2011 SL202 | MPC · JPL |
| – | 1998 ST21 | HUN | 19.5 | 370 m | single | 9 days | 30 Sep 1998 | 12 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 SJ27 = (740038) | MBA-I | 17.76 | 830 m | multiple | 1998–2022 | 24 Jan 2022 | 79 | Disc.: Woomera Obs. Alt.: 2020 KG1 | MPC · JPL |
| 2 | 1998 SG28 | MBA-O | 17.9 | 1.5 km | multiple | 1998–2020 | 23 Sep 2020 | 32 | Disc.: Spacewatch Added on 19 October 2020 | MPC · JPL |
| 2 | 1998 SH28 | MCA | 19.7 | 340 m | multiple | 1998–2018 | 14 Aug 2018 | 22 | Disc.: Spacewatch Added on 24 December 2021 | MPC · JPL |
| 0 | 1998 SB31 | MBA-I | 18.2 | 680 m | multiple | 1998–2019 | 29 Oct 2019 | 79 | Disc.: Spacewatch Alt.: 2012 SH27, 2015 HR58 | MPC · JPL |
| – | 1998 SQ33 | MBA-M | 18.0 | 1.4 km | single | 11 days | 27 Sep 1998 | 19 | Disc.: LINEAR | MPC · JPL |
| 1 | 1998 SE35 | AMO | 19.3 | 490 m | multiple | 1998–2020 | 19 Jan 2020 | 118 | Disc.: LINEAR | MPC · JPL |
| 0 | 1998 SB39 | MBA-O | 17.41 | 1.8 km | multiple | 1998–2021 | 19 Aug 2021 | 72 | Disc.: Spacewatch Alt.: 2015 VQ79 | MPC · JPL |
| 3 | 1998 SE39 | MBA-M | 18.6 | 800 m | multiple | 1998–2020 | 17 Oct 2020 | 34 | Disc.: Spacewatch Alt.: 2020 QN35 | MPC · JPL |
| 0 | 1998 SM40 | MBA-M | 18.2 | 960 m | multiple | 1998–2020 | 12 Nov 2020 | 51 | Disc.: Spacewatch Alt.: 2007 VX134 | MPC · JPL |
| 1 | 1998 SP40 | MBA-I | 19.6 | 360 m | multiple | 1998–2020 | 20 Oct 2020 | 74 | Disc.: Spacewatch | MPC · JPL |
| 2 | 1998 SE41 | MBA-M | 18.5 | 590 m | multiple | 1998–2020 | 20 Feb 2020 | 35 | Disc.: Spacewatch Alt.: 2016 CP68 | MPC · JPL |
| – | 1998 ST41 | MBA-I | 18.8 | 520 m | single | 9 days | 28 Sep 1998 | 10 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 SV41 | MBA-I | 19.6 | 360 m | multiple | 1998–2020 | 14 Dec 2020 | 42 | Disc.: Spacewatch Alt.: 2009 VH9, 2009 WC265, 2009 WN296 | MPC · JPL |
| 0 | 1998 SW41 | MCA | 18.1 | 1.3 km | multiple | 1998–2021 | 03 Dec 2021 | 69 | Disc.: Spacewatch Added on 5 November 2021 | MPC · JPL |
| 1 | 1998 SR44 | MBA-O | 17.3 | 1.9 km | multiple | 1998–2020 | 12 Dec 2020 | 83 | Disc.: Spacewatch Alt.: 2009 RG49 | MPC · JPL |
| 1 | 1998 SJ52 = (740039) | MBA-I | 18.3 | 650 m | multiple | 1998–2020 | 13 Jul 2020 | 71 | Disc.: Spacewatch Added on 22 July 2020 Alt.: 2009 QT4 | MPC · JPL |
| 0 | 1998 SM52 | MBA-O | 17.38 | 1.9 km | multiple | 1998–2021 | 30 Nov 2021 | 68 | Disc.: Spacewatch Alt.: 2009 SG196 | MPC · JPL |
| 2 | 1998 SJ91 | MBA-O | 16.7 | 2.5 km | multiple | 1998–2017 | 15 Dec 2017 | 33 | Disc.: LINEAR Alt.: 2004 RA89 | MPC · JPL |
| 0 | 1998 SD151 = (720070) | MBA-O | 16.6 | 2.8 km | multiple | 1998–2021 | 17 Jan 2021 | 146 | Disc.: LINEAR Alt.: 2010 EU154, 2014 WO498 | MPC · JPL |
| 2 | 1998 SS167 | MBA-M | 18.4 | 880 m | multiple | 1998–2020 | 17 Oct 2020 | 52 | Disc.: Spacewatch Added on 17 January 2021 | MPC · JPL |
| 0 | 1998 SJ172 | MBA-I | 19.14 | 440 m | multiple | 1998–2021 | 10 Jan 2021 | 37 | — Added on 29 January 2022 | MPC · JPL |
| 0 | 1998 SL172 | MBA-M | 18.0 | 1.1 km | multiple | 1998–2019 | 04 Aug 2019 | 47 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SM172 | MBA-M | 17.9 | 1.1 km | multiple | 1998–2020 | 10 Dec 2020 | 75 | Disc.: SDSS Added on 22 July 2020 Alt.: 2007 VF29 | MPC · JPL |
| 0 | 1998 SF173 | MBA-M | 18.28 | 1.2 km | multiple | 1998–2021 | 27 Oct 2021 | 49 | Disc.: SDSS Added on 5 November 2021 | MPC · JPL |
| 0 | 1998 ST173 = (720071) | MBA-O | 15.88 | 3.7 km | multiple | 1996–2022 | 27 Jan 2022 | 161 | Disc.: SDSS Alt.: 2014 SH157, 2019 TP22 | MPC · JPL |
| 0 | 1998 SV173 = (720072) | MBA-I | 18.3 | 650 m | multiple | 1998–2020 | 08 Dec 2020 | 97 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SB174 | MBA-O | 16.75 | 2.5 km | multiple | 1998–2021 | 08 Dec 2021 | 67 | Disc.: SDSS Added on 19 October 2020 | MPC · JPL |
| 0 | 1998 SO174 | MBA-O | 17.13 | 2.1 km | multiple | 1998–2021 | 09 Dec 2021 | 88 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SS174 | MBA-M | 18.08 | 1.3 km | multiple | 1998–2021 | 08 Nov 2021 | 37 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SF175 | MBA-O | 16.2 | 3.2 km | multiple | 1998–2020 | 05 Nov 2020 | 79 | Disc.: SDSS Added on 22 July 2020 | MPC · JPL |
| 0 | 1998 SH175 | MBA-M | 17.96 | 1.4 km | multiple | 1998–2021 | 06 Nov 2021 | 46 | Disc.: SDSS Added on 5 November 2021 | MPC · JPL |
| 1 | 1998 SX176 | MBA-I | 19.1 | 450 m | multiple | 1998–2022 | 01 Sep 2022 | 30 | Disc.: Spacewatch | MPC · JPL |
| 3 | 1998 SZ176 | MBA-I | 18.9 | 490 m | multiple | 1998–2016 | 22 Nov 2016 | 29 | Disc.: SDSS Alt.: 2016 WP5 | MPC · JPL |
| 0 | 1998 SZ177 = (720073) | MBA-M | 17.16 | 1.6 km | multiple | 1998–2022 | 27 Jan 2022 | 110 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SJ178 | MBA-I | 18.01 | 740 m | multiple | 1998–2021 | 02 Dec 2021 | 104 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SM178 = (720074) | MBA-M | 17.1 | 1.6 km | multiple | 1998–2021 | 16 Jan 2021 | 101 | Disc.: SDSS Alt.: 2010 JB101 | MPC · JPL |
| 0 | 1998 SN178 = (720075) | MBA-I | 18.41 | 620 m | multiple | 1998–2022 | 27 Jan 2022 | 85 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SV178 = (720076) | MBA-M | 17.48 | 1.8 km | multiple | 1998–2021 | 03 Oct 2021 | 73 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SA179 = (720077) | MBA-O | 16.4 | 2.9 km | multiple | 1993–2020 | 19 Dec 2020 | 85 | Disc.: Spacewatch Alt.: 1993 UR1 | MPC · JPL |
| 0 | 1998 SD179 = (720078) | MBA-I | 18.68 | 550 m | multiple | 1998–2021 | 07 Apr 2021 | 100 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SE179 | MBA-I | 18.50 | 590 m | multiple | 1998–2021 | 30 Sep 2021 | 77 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SG179 = (720079) | MBA-O | 17.36 | 1.9 km | multiple | 1998–2021 | 20 Apr 2021 | 49 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SK179 | MBA-I | 18.2 | 680 m | multiple | 1998–2019 | 31 May 2019 | 47 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SP179 | MBA-I | 18.61 | 560 m | multiple | 1998–2021 | 01 Oct 2021 | 69 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SQ179 = (720080) | MBA-I | 18.68 | 550 m | multiple | 1998–2022 | 27 Jan 2022 | 65 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 ST179 = (740040) | MBA-O | 17.27 | 2.0 km | multiple | 1998–2021 | 05 Jul 2021 | 76 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SX179 = (720081) | MBA-I | 18.9 | 490 m | multiple | 1998–2020 | 14 Nov 2020 | 68 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SY179 = (757040) | MBA-I | 18.2 | 680 m | multiple | 1998–2020 | 15 Oct 2020 | 46 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SZ179 | MBA-M | 18.77 | 520 m | multiple | 1998–2018 | 14 Sep 2018 | 66 | Disc.: SDSS Alt.: 2010 KH60 | MPC · JPL |
| 1 | 1998 SA180 | MBA-I | 19.07 | 460 m | multiple | 1998–2022 | 27 Jan 2022 | 51 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SC180 = (757041) | MBA-M | 17.93 | 1.4 km | multiple | 1998–2021 | 09 Dec 2021 | 65 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SD180 | MBA-O | 16.8 | 2.4 km | multiple | 1998–2020 | 15 Oct 2020 | 49 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SE180 | MBA-I | 18.81 | 520 m | multiple | 1998–2023 | 10 Sep 2023 | 39 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 SF180 = (757042) | MBA-I | 18.6 | 570 m | multiple | 1998–2020 | 17 Oct 2020 | 58 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SK180 = (720082) | MBA-O | 17.44 | 1.8 km | multiple | 1998–2021 | 09 Apr 2021 | 56 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SL180 = (757043) | MBA-M | 17.91 | 1.5 km | multiple | 1998–2021 | 05 Oct 2021 | 76 | Disc.: SDSS | MPC · JPL |
| 2 | 1998 SM180 | MBA-I | 18.4 | 620 m | multiple | 1998–2021 | 01 Dec 2021 | 33 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SP180 | MBA-M | 17.4 | 980 m | multiple | 1998–2020 | 10 Dec 2020 | 29 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SR180 = (720083) | MBA-I | 18.0 | 750 m | multiple | 1998–2020 | 06 Dec 2020 | 99 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SS180 | MBA-I | 18.8 | 520 m | multiple | 1998–2020 | 16 Sep 2020 | 45 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 ST180 | MBA-M | 17.81 | 810 m | multiple | 1998–2021 | 09 Apr 2021 | 40 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SU180 | MBA-I | 18.9 | 490 m | multiple | 1998–2017 | 16 Nov 2017 | 39 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 SV180 | MBA-M | 17.70 | 1.2 km | multiple | 1998–2022 | 10 Jan 2022 | 44 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SW180 | MBA-I | 19.1 | 450 m | multiple | 1998–2020 | 05 Nov 2020 | 56 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SX180 | MBA-M | 17.87 | 1.4 km | multiple | 1998–2024 | 16 Mar 2024 | 23 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SY180 | MBA-M | 18.1 | 1.0 km | multiple | 1998–2015 | 09 Sep 2015 | 30 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SA181 | MBA-I | 18.68 | 550 m | multiple | 1998–2021 | 29 Nov 2021 | 37 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 SD181 | MBA-I | 18.80 | 520 m | multiple | 1998–2021 | 02 Dec 2021 | 55 | Disc.: SDSS | MPC · JPL |
| 0 | 1998 SE181 | MBA-I | 19.44 | 380 m | multiple | 1998–2021 | 11 Jun 2021 | 32 | Disc.: SDSS | MPC · JPL |
| 2 | 1998 SK181 | MBA-O | 16.9 | 2.3 km | multiple | 1998–2020 | 16 Oct 2020 | 34 | Disc.: SDSS Added on 17 January 2021 | MPC · JPL |
| 0 | 1998 SL181 | MBA-I | 17.94 | 780 m | multiple | 1998–2023 | 15 Apr 2023 | 41 | Disc.: SDSS Added on 17 January 2021 | MPC · JPL |
| 0 | 1998 SM181 | MBA-I | 19.59 | 370 m | multiple | 1998–2023 | 03 Oct 2023 | 61 | Disc.: Spacewatch Added on 17 January 2021 | MPC · JPL |
| 0 | 1998 SN181 | MBA-M | 17.8 | 1.2 km | multiple | 1998–2021 | 16 Jan 2021 | 44 | Disc.: SDSS Added on 17 January 2021 | MPC · JPL |
| 0 | 1998 SO181 | MBA-O | 17.6 | 1.7 km | multiple | 1998–2021 | 15 Jan 2021 | 52 | Disc.: SDSS Added on 9 March 2021 | MPC · JPL |
| 2 | 1998 SP181 | MBA-O | 18.0 | 1.4 km | multiple | 1998–2020 | 20 Oct 2020 | 22 | Disc.: SDSS Added on 9 March 2021 | MPC · JPL |
| 1 | 1998 SQ181 | MBA-I | 19.6 | 360 m | multiple | 1998–2017 | 16 Oct 2017 | 30 | Disc.: SDSS Added on 9 March 2021 | MPC · JPL |
| 0 | 1998 SR181 | MBA-I | 18.73 | 530 m | multiple | 1998–2021 | 09 Jun 2021 | 48 | Disc.: No observations Added on 17 June 2021 | MPC · JPL |
| 0 | 1998 SS181 | MBA-I | 18.5 | 590 m | multiple | 1998–2017 | 13 Nov 2017 | 38 | Disc.: SDSS Added on 21 August 2021 | MPC · JPL |
| 1 | 1998 ST181 | MBA-I | 20.0 | 300 m | multiple | 1998–2018 | 13 Aug 2018 | 24 | Disc.: SDSS Added on 21 August 2021 | MPC · JPL |
| 0 | 1998 SU181 | MBA-O | 18.16 | 1.3 km | multiple | 1998–2017 | 28 Sep 2017 | 37 | Disc.: SDSS Added on 21 August 2021 | MPC · JPL |
| 0 | 1998 SV181 | MCA | 20.22 | 270 m | multiple | 1998–2021 | 06 Sep 2021 | 36 | Disc.: SDSS Added on 21 August 2021 | MPC · JPL |
| 0 | 1998 SX181 | MBA-I | 19.24 | 430 m | multiple | 1998–2024 | 12 Jun 2024 | 49 | Disc.: SDSS Added on 21 August 2021 | MPC · JPL |
| 2 | 1998 SZ181 | MBA-O | 17.51 | 1.8 km | multiple | 1998–2021 | 01 Nov 2021 | 37 | Disc.: SDSS Added on 5 November 2021 | MPC · JPL |
| 0 | 1998 SA182 | MBA-O | 17.0 | 2.3 km | multiple | 1998–2023 | 19 Mar 2023 | 38 | Disc.: SDSS Added on 24 December 2021 | MPC · JPL |

## T

| 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 |
| 1 | 1998 TT3 | AMO | 18.8 | 620 m | multiple | 1998–2017 | 16 Apr 2017 | 132 | Disc.: LONEOS | MPC · JPL |
| 0 | 1998 TB4 | MBA-M | 18.1 | 710 m | multiple | 1998–2019 | 27 Nov 2019 | 38 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 TA5 | MBA-M | 18.43 | 620 m | multiple | 1994–2023 | 11 Oct 2023 | 48 | Disc.: Spacewatch Alt.: 2002 PG123 | MPC · JPL |
| 0 | 1998 TX9 | MBA-M | 17.96 | 1.0 km | multiple | 1998–2022 | 09 May 2022 | 58 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 TZ13 | MBA-I | 18.5 | 590 m | multiple | 1998–2020 | 14 Nov 2020 | 67 | Disc.: Spacewatch Alt.: 2009 UM73 | MPC · JPL |
| 0 | 1998 TZ14 = (720085) | MBA-O | 16.9 | 2.4 km | multiple | 1998-2021 | 03 Dec 2021 | 95 | Disc.: Spacewatch Alt.: 2015 KH9 | MPC · JPL |
| 0 | 1998 TY19 | HUN | 18.9 | 490 m | multiple | 1998–2019 | 17 Nov 2019 | 67 | Disc.: Spacewatch Alt.: 2011 SB26 | MPC · JPL |
| 5 | 1998 TG20 | MBA-I | 19.6 | 360 m | multiple | 1998–2015 | 23 Oct 2015 | 17 | Disc.: Spacewatch Added on 21 August 2021 | MPC · JPL |
| 0 | 1998 TX21 | MBA-O | 17.3 | 2.1 km | multiple | 1998–2021 | 09 Jan 2021 | 81 | Disc.: Spacewatch Alt.: 2010 DX50 | MPC · JPL |
| 0 | 1998 TC24 | MBA-I | 18.6 | 570 m | multiple | 1998–2021 | 07 Sep 2021 | 58 | Disc.: Spacewatch Added on 30 September 2021 Alt.: 2006 VX123, 2015 AC71, 2021 PK48 | MPC · JPL |
| 0 | 1998 TH25 | MBA-I | 19.0 | 470 m | multiple | 1998–2021 | 31 Oct 2021 | 33 | — Added on 29 January 2022 | MPC · JPL |
| 1 | 1998 TV25 | MBA-I | 18.3 | 650 m | multiple | 1998–2017 | 07 Dec 2017 | 53 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 TF26 = (740041) | MBA-I | 17.88 | 790 m | multiple | 1998–2021 | 27 Oct 2021 | 85 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 TE28 | MBA-M | 18.6 | 800 m | multiple | 1998–2020 | 15 Dec 2020 | 79 | Disc.: Spacewatch Added on 17 January 2021 Alt.: 2016 YV19 | MPC · JPL |
| 0 | 1998 TA29 = (757044) | MBA-O | 17.34 | 2.0 km | multiple | 1998–2024 | 14 Aug 2024 | 67 | Disc.: Spacewatch Added on 21 August 2021 Alt.: 2003 SB357, 2019 RN15 | MPC · JPL |
| 0 | 1998 TU38 | MBA-I | 18.8 | 520 m | multiple | 1998–2018 | 07 Aug 2018 | 38 | Disc.: Spacewatch | MPC · JPL |

## 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 |
| 8 | 1998 UR | AMO | 22.7 | 100 m | single | 11 days | 27 Oct 1998 | 23 | Disc.: LINEAR | MPC · JPL |
| 1 | 1998 UM1 | AMO | 23.4 | 74 m | multiple | 1998–2018 | 19 Nov 2018 | 65 | Disc.: LINEAR Alt.: 2018 RP4 | MPC · JPL |
| 1 | 1998 UH10 | MBA-O | 17.2 | 2.0 km | multiple | 1998–2019 | 08 Jan 2019 | 38 | Disc.: Spacewatch | MPC · JPL |
| 2 | 1998 UG13 | MBA-O | 18.02 | 1.3 km | multiple | 1998-2024 | 23 Dez 2024 | 49 | Disc.: Spacewatch | MPC · JPL |
| 2 | 1998 US18 | APO | 20.9 | 230 m | multiple | 1998–2019 | 28 Nov 2019 | 68 | Disc.: Spacewatch Potentially hazardous object Alt.: 2019 VC1 | MPC · JPL |
| 8 | 1998 UY24 | APO | 21.6 | 170 m | single | 10 days | 08 Nov 1998 | 16 | Disc.: LINEAR | MPC · JPL |
| 2 | 1998 UR43 | TNO | 8.3 | 103 km | multiple | 1998–2017 | 23 Dec 2017 | 38 | Disc.: Kitt Peak LoUTNOs, plutino, BR-mag: 1.27; taxonomy: BR | MPC · JPL |
| 1 | 1998 UO46 | MBA-I | 18.6 | 570 m | multiple | 1998–2020 | 16 Dec 2020 | 48 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 UX47 = (720086) | MBA-M | 17.2 | 1.1 km | multiple | 1998–2019 | 03 Dec 2019 | 109 | Disc.: Spacewatch Alt.: 2010 JK133, 2013 CB223, 2014 OF315 | MPC · JPL |
| 0 | 1998 UD50 = (720087) | MBA-M | 17.24 | 2.0 km | multiple | 1998–2021 | 30 Nov 2021 | 127 | Disc.: Spacewatch Added on 22 July 2020 | MPC · JPL |
| 0 | 1998 UZ50 = (720088) | MBA-M | 17.9 | 1.1 km | multiple | 1998–2021 | 18 Jan 2021 | 90 | Disc.: Spacewatch Alt.: 2005 JT6, 2015 VQ14 | MPC · JPL |
| 0 | 1998 UB51 | MBA-I | 18.7 | 540 m | multiple | 1998–2020 | 24 Nov 2020 | 77 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 UC51 = (720089) | MBA-I | 18.4 | 620 m | multiple | 1998–2021 | 08 Jun 2021 | 77 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 UH51 | MBA-M | 17.84 | 1.2 km | multiple | 1998–2024 | 07 Dec 2024 | 41 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 UN51 | MBA-I | 18.1 | 660 m | multiple | 1998–2024 | 14 Aug 2024 | 75 | Disc.: Spacewatch | MPC · JPL |
| 2 | 1998 UO51 | MBA-I | 19.36 | 400 m | multiple | 1998–2021 | 08 Dec 2021 | 36 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 US51 | MBA-O | 17.6 | 1.7 km | multiple | 1998–2020 | 10 Dec 2020 | 51 | Disc.: Spacewatch Added on 17 January 2021 | MPC · JPL |
| 0 | 1998 UT51 | MBA-M | 18.2 | 960 m | multiple | 1998–2021 | 12 Jan 2021 | 40 | Disc.: Spacewatch Added on 17 January 2021 | MPC · JPL |
| 0 | 1998 UU51 | MBA-M | 18.3 | 920 m | multiple | 1998–2020 | 10 Dec 2020 | 45 | Disc.: No observations Added on 17 January 2021 | MPC · JPL |
| 0 | 1998 UV51 | MBA-I | 18.3 | 650 m | multiple | 1998–2021 | 15 Apr 2021 | 51 | Disc.: DB Missing Added on 17 June 2021 | MPC · JPL |

## V

| 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 | 1998 VP | AMO | 19.14 | 550 m | multiple | 1998–2023 | 03 Sep 2023 | 89 | Disc.: LINEAR | MPC · JPL |
| 0 | 1998 VQ | MCA | 19.66 | 430 m | multiple | 1998–2024 | 10 Dec 2024 | 88 | Disc.: LINEAR Alt.: 2011 VM1 | MPC · JPL |
| 1 | 1998 VS | APO | 22.3 | 120 m | multiple | 1998–2019 | 05 Feb 2019 | 67 | Disc.: LINEAR AMO at MPC | MPC · JPL |
| 0 | 1998 VE31 | APO | 20.09 | 230 m | multiple | 1998–2025 | 16 Jan 2025 | 104 | Disc.: LINEAR | MPC · JPL |
| 0 | 1998 VD32 | APO | 22.65 | 100 m | multiple | 1998–2020 | 25 Nov 2020 | 135 | Disc.: LINEAR Alt.: 2020 SS7 | MPC · JPL |
| 0 | 1998 VP40 = (720091) | MBA-O | 16.9 | 2.7 km | multiple | 1998–2021 | 05 Jan 2021 | 85 | Disc.: Spacewatch Alt.: 2010 EG6 | MPC · JPL |
| 0 | 1998 VE42 | MBA-I | 17.87 | 790 m | multiple | 1998–2021 | 30 Oct 2021 | 74 | Disc.: Spacewatch Added on 5 November 2021 Alt.: 2021 LY23 | MPC · JPL |
| 0 | 1998 VF57 | MBA-M | 18.2 | 960 m | multiple | 1998–2019 | 29 Oct 2019 | 56 | Disc.: Spacewatch Alt.: 2015 TS391 | MPC · JPL |
| 0 | 1998 VM57 = (757045) | MBA-M | 17.9 | 1.1 km | multiple | 1998–2019 | 05 Sep 2019 | 38 | Disc.: Spacewatch Added on 22 July 2020 | MPC · JPL |

## W

| 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 |
| 7 | 1998 WY1 | AMO | 21.9 | 150 m | single | 12 days | 28 Nov 1998 | 30 | Disc.: LINEAR | MPC · JPL |
| 0 | 1998 WA2 | AMO | 19.8 | 390 m | multiple | 1998–2021 | 07 Jan 2021 | 214 | Disc.: LINEAR Alt.: 2020 PE | MPC · JPL |
| 0 | 1998 WB2 | APO | 21.86 | 150 m | multiple | 1998–2023 | 15 Oct 2023 | 225 | Disc.: LINEAR Potentially hazardous object Alt.: 2010 GJ7 | MPC · JPL |
| 2 | 1998 WL4 | APO | 19.5 | 450 m | multiple | 1998–2019 | 30 Nov 2019 | 83 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 WR5 | AMO | 18.76 | 540 m | multiple | 1998-2023 | 06 Dec 2023 | 68 | Disc.: LINEAR | MPC · JPL |
| 2 | 1998 WS5 | MCA | 18.6 | 570 m | multiple | 1990–2002 | 23 Nov 2002 | 76 | Disc.: LINEAR | MPC · JPL |
| 3 | 1998 WU24 | CEN | 15.0 | 6.0 km | single | 87 days | 20 Feb 1999 | 62 | Disc.: LINEAR , BR-mag: 1.31 MCA at MPC | MPC · JPL |
| 3 | 1998 WV24 | TNO | 7.4 | 104 km | multiple | 1998–2020 | 14 Nov 2020 | 26 | Disc.: Kitt Peak LoUTNOs, other TNO, BR-mag: 1.27; taxonomy: BR; binary: 91 km | MPC · JPL |
| 2 | 1998 WX24 | TNO | 6.7 | 152 km | multiple | 1998–2018 | 09 Dec 2018 | 35 | Disc.: Kitt Peak LoUTNOs, cubewano (cold), BR-mag: 1.79; taxonomy: RR | MPC · JPL |
| E | 1998 WZ24 | TNO | 8.1 | 113 km | single | 65 days | 22 Jan 1999 | 6 | Disc.: Kitt Peak LoUTNOs, plutino? | MPC · JPL |
| 0 | 1998 WN26 = (740042) | MBA-O | 16.7 | 2.5 km | multiple | 1998–2021 | 08 Jan 2021 | 106 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 WY27 | MBA-M | 18.1 | 1.0 km | multiple | 1998–2021 | 07 Jan 2021 | 38 | Disc.: Spacewatch Alt.: 2011 WP60 | MPC · JPL |
| 0 | 1998 WR29 = (740043) | MBA-M | 17.0 | 2.2 km | multiple | 1998–2021 | 30 Nov 2021 | 73 | Disc.: Spacewatch Added on 24 December 2021 | MPC · JPL |
| 3 | 1998 WS31 | TNO | 8.26 | 105 km | multiple | 1998–2021 | 11 Jan 2021 | 33 | Disc.: Kitt Peak LoUTNOs, plutino, BR-mag: 1.32; taxonomy: IR-BR | MPC · JPL |
| 2 | 1998 WV31 | TNO | 7.5 | 150 km | multiple | 1998–2017 | 20 Dec 2017 | 28 | Disc.: Kitt Peak LoUTNOs, plutino, BR-mag: 1.31; taxonomy: BR | MPC · JPL |
| 2 | 1998 WW31 | TNO | 6.7 | 148 km | multiple | 1998–2019 | 26 Oct 2019 | 38 | Disc.: Kitt Peak LoUTNOs, cubewano (hot), albedo: 0.054; binary: 123 km | MPC · JPL |
| 5 | 1998 WY31 | TNO | 6.98 | 132 km | multiple | 1998–2023 | 29 Feb 2023 | 29 | Disc.: Kitt Peak LoUTNOs, cubewano (cold) | MPC · JPL |
| 4 | 1998 WZ31 | TNO | 8.21 | 108 km | multiple | 1998–2021 | 01 Dec 2021 | 29 | Disc.: Kitt Peak LoUTNOs, plutino, BR-mag: 1.26; taxonomy: BB-BR | MPC · JPL |
| 1 | 1998 WW39 | MBA-I | 18.7 | 540 m | multiple | 1998–2019 | 28 Nov 2019 | 60 | Disc.: Spacewatch Alt.: 2017 BK116 | MPC · JPL |
| 0 | 1998 WY42 = (720092) | MBA-O | 17.1 | 2.1 km | multiple | 1998–2020 | 11 Dec 2020 | 74 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 WC43 | MBA-O | 17.2 | 2.0 km | multiple | 1998–2020 | 14 Nov 2020 | 40 | Disc.: Spacewatch Added on 17 January 2021 Alt.: 2014 SC50 | MPC · JPL |
| 0 | 1998 WD43 = (720093) | JT | 14.84 | 6.0 km | multiple | 1998–2021 | 30 Nov 2021 | 94 | Disc.: Spacewatch Added on 17 January 2021 Greek camp (L4) Alt.: 2020 RE30 | MPC · JPL |
| 2 | 1998 WJ44 | MBA-M | 18.95 | 480 m | multiple | 1998–2023 | 12 Oct 2023 | 39 | Disc.: La Palma Obs. Added on 22 July 2020 | MPC · JPL |
| E | 1998 WK44 | JT | 14.5 | 7.0 km | single | 5 days | 22 Nov 1998 | 9 | Disc.: La Palma Obs. Greek camp (L4) | MPC · JPL |
| 0 | 1998 WT44 | MBA-M | 16.90 | 1.2 km | multiple | 1998–2021 | 13 Jul 2021 | 200 | Disc.: La Palma Obs. Alt.: 2008 JF3, 2017 OX9 | MPC · JPL |
| 0 | 1998 WV44 | MBA-M | 17.40 | 1.8 km | multiple | 1998–2022 | 07 Jan 2022 | 130 | Disc.: La Palma Obs. Alt.: 2015 PX177 | MPC · JPL |
| 0 | 1998 WA45 | MBA-M | 17.00 | 1.7 km | multiple | 1998–2021 | 17 Apr 2021 | 143 | Disc.: La Palma Obs. | MPC · JPL |
| 0 | 1998 WF45 | MBA-I | 18.5 | 590 m | multiple | 1998–2021 | 18 Jan 2021 | 52 | Disc.: La Palma Obs. Added on 24 August 2020 | MPC · JPL |
| 1 | 1998 WL45 | MBA-I | 18.4 | 620 m | multiple | 1998–2021 | 09 Apr 2021 | 38 | Disc.: La Palma Obs. Added on 30 September 2021 | MPC · JPL |
| 2 | 1998 WH46 | MBA-M | 18.4 | 620 m | multiple | 1998–2018 | 08 Aug 2018 | 23 | Disc.: Spacewatch Added on 17 January 2021 | MPC · JPL |
| 0 | 1998 WJ46 = (720094) | MBA-I | 18.51 | 590 m | multiple | 1998–2021 | 30 Nov 2021 | 125 | Disc.: Spacewatch Added on 5 November 2021 | MPC · JPL |
| 0 | 1998 WL46 = (740044) | MBA-M | 17.63 | 1.7 km | multiple | 1998–2021 | 27 Nov 2021 | 99 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 WO46 | MBA-I | 18.98 | 480 m | multiple | 1998–2022 | 06 Jan 2022 | 58 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 WR46 | MBA-I | 18.9 | 490 m | multiple | 1998–2018 | 15 Oct 2018 | 49 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 WU46 | HUN | 19.03 | 460 m | multiple | 1998–2021 | 15 Sep 2021 | 48 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 WW46 | MBA-I | 18.7 | 540 m | multiple | 1998–2021 | 04 Jan 2021 | 60 | Disc.: Spacewatch | MPC · JPL |

## X

| 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 |
| 1 | 1998 XD9 | MCA | 17.8 | 820 m | multiple | 1998–2020 | 21 May 2020 | 158 | Disc.: LINEAR | MPC · JPL |
| 9 | 1998 XD12 | APO | 20.96 | 260 m | single | 10 days | 24 Dec 1998 | 60 | Disc.: LINEAR Potentially hazardous object | MPC · JPL |
| 4 | 1998 XN17 | ATE | 22.8 | 98 m | multiple | 1998–2004 | 24 Mar 2004 | 36 | Disc.: LINEAR | MPC · JPL |
| 0 | 1998 XT18 | MBA-I | 18.11 | 710 m | multiple | 1998–2021 | 18 Mar 2021 | 34 | Disc.: Spacewatch Added on 24 December 2021 | MPC · JPL |

## Y

| 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 | 1998 YG10 | MCA | 19.14 | 430 m | multiple | 1998-2024 | 19 Jan 2024 | 51 | Disc.: Spacewatch | MPC · JPL |
| 0 | 1998 YO21 | MBA-M | 17.77 | 1.2 km | multiple | 1998–2023 | 17 Sep 2023 | 94 | Disc.: Spacewatch | MPC · JPL |
| 1 | 1998 YV27 | MBA-I | 19.2 | 430 m | multiple | 1998–2020 | 11 Oct 2020 | 43 | Disc.: La Palma Obs. Added on 9 March 2021 Alt.: 2020 QU11 | MPC · JPL |