List of unnumbered minor planets: 2004 R (200–299)

This is a partial list of unnumbered minor planets for principal provisional designations assigned during 1–15 September 2004. Since this period yielded a high number of provisional discoveries, it is further split into several standalone pages. , a total of 122 bodies remain unnumbered for this period. Objects for this year are listed on the following pages: A–B · C · D–E · F · G–H · J–O · P–Q · Ri · Rii · Riii · S · Ti · Tii · Tiii · Tiv · U–V · W–X and Y. Also see previous and next year.

R

|- id="2004 RZ201" bgcolor=#E9E9E9 | 1 || || MBA-M || 18.1 || 1.0 km || multiple || 2004–2017 || 07 Nov 2017 || 59 || align=left | Disc.: SpacewatchAlt.: 2017 OG71 || |- id="2004 RH202" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.1 || 2.1 km || multiple || 2002–2018 || 14 Sep 2018 || 94 || align=left | Disc.: SpacewatchAlt.: 2016 CV8 || |- id="2004 RU202" bgcolor=#d6d6d6 | 0 || || MBA-O || 17.22 || 2.0 km || multiple || 2004–2021 || 03 Oct 2021 || 54 || align=left | Disc.: SpacewatchAlt.: 2021 PD55 || |- id="2004 RB203" bgcolor=#fefefe | 0 || || MBA-I || 18.92 || data-sort-value="0.71" | 710 m || multiple || 2004-2025 || 26 May 2025 || 29 || align=left | Disc.: Spacewatch || |- id="2004 RF203" bgcolor=#fefefe | 0 || || MBA-I || 19.2 || data-sort-value="0.43" | 430 m || multiple || 2004–2020 || 15 Sep 2020 || 56 || align=left | Disc.: LPL/Spacewatch II || |- id="2004 RN209" bgcolor=#E9E9E9 | 1 || || MBA-M || 17.3 || 1.0 km || multiple || 2004–2020 || 15 Jun 2020 || 42 || align=left | Alt.: 2008 OH13 || |- id="2004 RW210" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.73 || 1.2 km || multiple || 2004–2021 || 07 Jul 2021 || 46 || align=left | — || |- id="2004 RC213" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.99 || 1.1 km || multiple || 2004–2021 || 28 Nov 2021 || 126 || align=left | — || |- id="2004 RC222" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.58 || 1.3 km || multiple || 2004–2021 || 31 Oct 2021 || 68 || align=left | Alt.: 2017 YM3 || |- id="2004 RQ228" bgcolor=#fefefe | 2 || || MBA-I || 18.4 || data-sort-value="0.62" | 620 m || multiple || 2004–2016 || 22 Dec 2016 || 57 || align=left | — || |- id="2004 RD229" bgcolor=#fefefe | 1 || || MBA-I || 18.8 || data-sort-value="0.52" | 520 m || multiple || 2004–2018 || 13 Dec 2018 || 62 || align=left | — || |- id="2004 RG229" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.79 || 1.2 km || multiple || 2004–2021 || 11 Aug 2021 || 58 || align=left | — || |- id="2004 RQ234" bgcolor=#fefefe | 1 || || MBA-I || 18.7 || data-sort-value="0.54" | 540 m || multiple || 2004–2020 || 25 May 2020 || 52 || align=left | Alt.: 2014 TQ4 || |- id="2004 RT234" bgcolor=#fefefe | 0 || || MBA-I || 18.4 || data-sort-value="0.62" | 620 m || multiple || 2004–2015 || 19 Jun 2015 || 46 || align=left | Alt.: 2008 TD128 || |- id="2004 RG237" bgcolor=#fefefe | 1 || || MBA-I || 19.3 || data-sort-value="0.41" | 410 m || multiple || 1997–2015 || 01 Dec 2015 || 22 || align=left | — || |- id="2004 RH237" bgcolor=#E9E9E9 | – || || MBA-M || 19.4 || data-sort-value="0.39" | 390 m || single || 6 days || 16 Sep 2004 || 9 || align=left | — || |- id="2004 RN237" bgcolor=#fefefe | 0 || || MBA-I || 18.5 || data-sort-value="0.59" | 590 m || multiple || 2004–2019 || 20 Oct 2019 || 28 || align=left | — || |- id="2004 RE238" bgcolor=#E9E9E9 | 2 || || MBA-M || 18.4 || 1.2 km || multiple || 2004–2013 || 25 Sep 2013 || 18 || align=left | — || |- id="2004 RP238" bgcolor=#d6d6d6 | 0 || || MBA-O || 17.44 || 1.8 km || multiple || 2004–2021 || 28 Nov 2021 || 52 || align=left | — || |- id="2004 RE239" bgcolor=#d6d6d6 | 0 || || MBA-O || 17.5 || 1.8 km || multiple || 2004–2020 || 15 Oct 2020 || 27 || align=left | Disc.: SpacewatchAdded on 11 May 2021Alt.: 2020 RN71 || |- id="2004 RK240" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.99 || 1.1 km || multiple || 2004–2021 || 08 Sep 2021 || 40 || align=left | — || |- id="2004 RQ240" bgcolor=#fefefe | 0 || || MBA-I || 19.0 || data-sort-value="0.47" | 470 m || multiple || 2003–2019 || 26 Sep 2019 || 39 || align=left | Alt.: 2015 OZ26 || |- id="2004 RT240" bgcolor=#fefefe | 0 || || MBA-I || 19.05 || data-sort-value="0.52" | 520 m || multiple || 2004-2025 || 27 May 2025|| 41 || align=left | — || |- id="2004 RZ240" bgcolor=#E9E9E9 | 1 || || MBA-M || 18.34 || data-sort-value="0.62" | 620 m || multiple || 2000-2024 || 04 Oct 2024 || 63 || align=left | — || |- id="2004 RC241" bgcolor=#d6d6d6 | 0 || || MBA-O || 17.40 || 1.8 km || multiple || 2004–2021 || 06 Nov 2021 || 59 || align=left | Alt.: 2010 OU82 || |- id="2004 RK241" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.40 || data-sort-value="0.62" | 620 m || multiple || 2004–2022 || 27 Jan 2022 || 44 || align=left | — || |- id="2004 RP241" bgcolor=#fefefe | 0 || || MBA-I || 19.5 || data-sort-value="0.37" | 370 m || multiple || 2000–2019 || 26 Sep 2019 || 131 || align=left | — || |- id="2004 RD242" bgcolor=#fefefe | 0 || || MBA-I || 18.8 || data-sort-value="0.52" | 520 m || multiple || 2004–2020 || 08 Jul 2020 || 41 || align=left | — || |- id="2004 RW242" bgcolor=#FA8072 | – || || MCA || 19.7 || data-sort-value="0.34" | 340 m || single || 12 days || 22 Sep 2004 || 12 || align=left | — || |- id="2004 RG243" bgcolor=#fefefe | – || || MBA-I || 19.3 || data-sort-value="0.41" | 410 m || single || 6 days || 16 Sep 2004 || 9 || align=left | — || |- id="2004 RK243" bgcolor=#d6d6d6 | – || || MBA-O || 17.4 || 1.8 km || single || 6 days || 16 Sep 2004 || 9 || align=left | — || |- id="2004 RQ243" bgcolor=#d6d6d6 | 0 || || MBA-O || 18.10 || 1.3 km || multiple || 2004–2020 || 21 Oct 2020 || 143 || align=left | Disc.: SpacewatchAdded on 17 January 2021 || |- id="2004 RW243" bgcolor=#d6d6d6 | 2 || || MBA-O || 17.8 || 1.5 km || multiple || 2004–2020 || 11 Oct 2020 || 50 || align=left | — || |- id="2004 RD244" bgcolor=#E9E9E9 | 2 || || MBA-M || 18.3 || data-sort-value="0.92" | 920 m || multiple || 2004–2021 || 10 Aug 2021 || 39 || align=left | — || |- id="2004 RM244" bgcolor=#E9E9E9 | 0 || || MBA-M || 19.0 || data-sort-value="0.67" | 670 m || multiple || 2004–2021 || 26 Nov 2021 || 34 || align=left | — || |- id="2004 RO244" bgcolor=#d6d6d6 | 1 || || MBA-O || 17.59 || 1.7 km || multiple || 2004–2020 || 19 Oct 2020 || 80 || align=left | Disc.: SpacewatchAdded on 17 January 2021 || |- id="2004 RH247" bgcolor=#d6d6d6 | 0 || || MBA-O || 17.14 || 2.1 km || multiple || 2004–2021 || 03 Dec 2021 || 53 || align=left | — || |- id="2004 RP249" bgcolor=#fefefe | 0 || || MBA-I || 19.0 || data-sort-value="0.47" | 470 m || multiple || 2004–2020 || 25 Jan 2020 || 35 || align=left | — || |- id="2004 RL251" bgcolor=#FFC2E0 | 4 || || AMO || 22.7 || data-sort-value="0.10" | 100 m || single || 51 days || 04 Nov 2004 || 159 || align=left | Disc.: LINEAR || |- id="2004 RN251" bgcolor=#FFC2E0 | 6 || || APO || 26.1 || data-sort-value="0.021" | 21 m || single || 2 days || 17 Sep 2004 || 27 || align=left | Disc.: LINEAR || |- id="2004 RU251" bgcolor=#fefefe | 2 || || HUN || 19.5 || data-sort-value="0.37" | 370 m || multiple || 2004–2020 || 16 Oct 2020 || 56 || align=left | — || |- id="2004 RW251" bgcolor=#d6d6d6 | 0 || || MBA-O || 17.34 || 1.9 km || multiple || 2004–2021 || 05 Nov 2021 || 95 || align=left | Disc.: Table Mountain Obs.Added on 21 August 2021Alt.: 2010 OU89 || |- id="2004 RC252" bgcolor=#FFC2E0 | 8 || || AMO || 21.3 || data-sort-value="0.20" | 200 m || single || 6 days || 21 Sep 2004 || 37 || align=left | Disc.: Spacewatch || |- id="2004 RQ252" bgcolor=#FFC2E0 | 1 || || APO || 22.4 || data-sort-value="0.12" | 120 m || multiple || 2004–2012 || 04 May 2012 || 97 || align=left | Disc.: SSS || |- id="2004 RH253" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.6 || 1.7 km || multiple || 2004–2017 || 15 Jul 2017 || 61 || align=left | Alt.: 2013 SX76 || |- id="2004 RP258" bgcolor=#fefefe | 3 || || MBA-I || 19.62 || data-sort-value="0.34" | 340 m || multiple || 2004-2022 || 22 Aug 2022 || 16 || align=left | — || |- id="2004 RT258" bgcolor=#fefefe | 0 || || MBA-I || 18.0 || data-sort-value="0.75" | 750 m || multiple || 2004–2021 || 05 Feb 2021 || 34 || align=left | Disc.: SpacewatchAdded on 29 January 2022 || |- id="2004 RB259" bgcolor=#fefefe | 0 || || MBA-I || 19.5 || data-sort-value="0.37" | 370 m || multiple || 2004–2020 || 21 Oct 2020 || 41 || align=left | — || |- id="2004 RY259" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.61 || data-sort-value="0.80" | 800 m || multiple || 2004–2021 || 26 Oct 2021 || 84 || align=left | —Added on 22 July 2020Alt.: 2017 UT52 || |- id="2004 RC260" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.55 || data-sort-value="0.82" | 820 m || multiple || 2004–2021 || 06 Nov 2021 || 36 || align=left | Disc.: SpacewatchAdded on 5 November 2021 || |- id="2004 RD260" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.87 || data-sort-value="0.70" | 700 m || multiple || 2004-2021 || 09 Oct 2021 || 28 || align=left | — || |- id="2004 RK260" bgcolor=#fefefe | 0 || || MBA-I || 19.4 || data-sort-value="0.39" | 390 m || multiple || 2004–2017 || 01 Sep 2017 || 26 || align=left | Disc.: SpacewatchAdded on 19 October 2020 || |- id="2004 RQ261" bgcolor=#d6d6d6 | – || || MBA-O || 18.9 || data-sort-value="0.92" | 920 m || single || 6 days || 16 Sep 2004 || 9 || align=left | — || |- id="2004 RZ261" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.0 || 1.1 km || multiple || 2004–2019 || 28 Jan 2019 || 28 || align=left | —Added on 22 July 2020 || |- id="2004 RM262" bgcolor=#fefefe | 0 || || MBA-I || 18.95 || data-sort-value="0.43" | 430 m || multiple || 2004-2022 || 27 Sep 2022 || 54 || align=left | — || |- id="2004 RN262" bgcolor=#E9E9E9 | 1 || || MBA-M || 19.04 || data-sort-value="0.46" | 460 m || multiple || 2004–2020 || 13 Sep 2020 || 42 || align=left | Alt.: 2016 PC179 || |- id="2004 RT262" bgcolor=#E9E9E9 | 2 || || MBA-M || 18.6 || 1.1 km || multiple || 2004–2013 || 03 Aug 2013 || 18 || align=left | — || |- id="2004 RY262" bgcolor=#fefefe | 0 || || MBA-I || 19.3 || data-sort-value="0.41" | 410 m || multiple || 2004–2019 || 29 Sep 2019 || 32 || align=left | —Added on 22 July 2020Alt.: 2015 PW110 || |- id="2004 RF263" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.15 || data-sort-value="0.99" | 990 m || multiple || 2004–2021 || 30 May 2021 || 44 || align=left | Disc.: SpacewatchAdded on 17 June 2021Alt.: 2021 GX22 || |- id="2004 RV263" bgcolor=#fefefe | 0 || || MBA-I || 18.8 || data-sort-value="0.52" | 520 m || multiple || 2004–2015 || 07 Nov 2015 || 16 || align=left | — || |- id="2004 RY263" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.58 || data-sort-value="0.70" | 700 m || multiple || 2004-2022 || 24 Dec 2022 || 42 || align=left | — || |- id="2004 RA264" bgcolor=#fefefe | 1 || || MBA-I || 18.9 || data-sort-value="0.49" | 490 m || multiple || 2004–2019 || 24 Oct 2019 || 21 || align=left | —Added on 22 July 2020 || |- id="2004 RU265" bgcolor=#E9E9E9 | 1 || || MBA-M || 18.0 || data-sort-value="0.75" | 750 m || multiple || 2004–2020 || 15 Sep 2020 || 38 || align=left | — || |- id="2004 RG266" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.9 || 1.1 km || multiple || 2004–2017 || 11 Oct 2017 || 25 || align=left | — || |- id="2004 RM266" bgcolor=#fefefe | 2 || || MBA-I || 20.2 || data-sort-value="0.27" | 270 m || multiple || 2004–2014 || 02 Oct 2014 || 19 || align=left | — || |- id="2004 RP266" bgcolor=#fefefe | 0 || || MBA-I || 18.6 || data-sort-value="0.57" | 570 m || multiple || 2004–2019 || 28 Nov 2019 || 50 || align=left | — || |- id="2004 RW266" bgcolor=#d6d6d6 | 1 || || MBA-O || 17.9 || 1.5 km || multiple || 2004–2019 || 28 Nov 2019 || 35 || align=left | —Added on 22 July 2020 || |- id="2004 RU267" bgcolor=#d6d6d6 | 0 || || MBA-O || 17.17 || 2.0 km || multiple || 2004–2021 || 27 Nov 2021 || 71 || align=left | — || |- id="2004 RX267" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.32 || data-sort-value="0.91" | 910 m || multiple || 2004–2021 || 27 Sep 2021 || 78 || align=left | — || |- id="2004 RH268" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.01 || 1.1 km || multiple || 2004–2021 || 03 Sep 2021 || 48 || align=left | —Added on 22 July 2020 || |- id="2004 RL268" bgcolor=#E9E9E9