List of unnumbered minor planets: 2003 S (0–269)

This is a partial list of unnumbered minor planets for principal provisional designations assigned during 16–30 September 2003. Since this period yielded a high number of provisional discoveries, it is further split into several standalone pages. , a total of 192 bodies remain unnumbered for this period. Objects for this year are listed on the following pages: A–E · F–G · H–L · M–R · Si · Sii · Siii · Siv · T · Ui · Uii · Uiii · Uiv · V · Wi · Wii and X–Y. Also see previous and next year.

S

|- id="2003 SA" bgcolor=#FA8072 | 2 || 2003 SA || MCA || 20.0 || data-sort-value="0.30" | 300 m || multiple || 2003–2014 || 24 Sep 2014 || 106 || align=left | Disc.: LONEOSAlt.: 2014 SK144 || |- id="2003 SD" bgcolor=#FA8072 | 1 || 2003 SD || MCA || 19.6 || data-sort-value="0.36" | 360 m || multiple || 2003–2017 || 23 Oct 2017 || 61 || align=left | Disc.: NEAT || |- id="2003 SU" bgcolor=#fefefe | 0 || 2003 SU || MBA-I || 18.8 || data-sort-value="0.52" | 520 m || multiple || 2003–2018 || 30 Sep 2018 || 48 || align=left | Disc.: Spacewatch || |- id="2003 SZ" bgcolor=#fefefe |- id="2003 SN1" bgcolor=#d6d6d6 | 1 || || MBA-O || 17.8 || 1.5 km || multiple || 2003–2019 || 28 Oct 2019 || 29 || align=left | Disc.: Spacewatch || |- id="2003 SZ1" bgcolor=#d6d6d6 | 0 || || MBA-O || 17.4 || 1.8 km || multiple || 2003–2020 || 16 Aug 2020 || 29 || align=left | Disc.: SpacewatchAdded on 21 August 2021Alt.: 2020 OY100 || |- id="2003 SP3" bgcolor=#E9E9E9 |- id="2003 SU3" bgcolor=#fefefe | 1 || || MBA-I || 19.0 || data-sort-value="0.47" | 470 m || multiple || 1996–2021 || 28 Nov 2021 || 52 || align=left | Disc.: LPL/Spacewatch IIAdded on 24 December 2021 || |- id="2003 SB4" bgcolor=#E9E9E9 |- id="2003 SY4" bgcolor=#FFC2E0 | 6 || || APO || 26.5 || data-sort-value="0.018" | 18 m || single || 10 days || 26 Sep 2003 || 66 || align=left | Disc.: LPL/Spacewatch II || |- id="2003 SJ5" bgcolor=#FA8072 | 9 || || MCA || 19.9 || data-sort-value="0.44" | 440 m || single || 2 days || 18 Sep 2003 || 19 || align=left | Disc.: LINEAR || |- id="2003 SK5" bgcolor=#FFC2E0 | 0 || || AMO || 20.0 || data-sort-value="0.36" | 360 m || multiple || 2003–2012 || 24 Apr 2012 || 190 || align=left | Disc.: NEAT || |- id="2003 SL5" bgcolor=#FFC2E0 | 1 || || AMO || 19.2 || data-sort-value="0.51" | 510 m || multiple || 2003–2012 || 26 Apr 2012 || 183 || align=left | Disc.: LINEAR || |- id="2003 SM5" bgcolor=#fefefe | 0 || || MBA-I || 19.27 || data-sort-value="0.42" | 420 m || multiple || 2003–2021 || 30 Nov 2021 || 58 || align=left | Disc.: Spacewatch || |- id="2003 SO5" bgcolor=#d6d6d6 | 2 || || MBA-O || 18.3 || 1.2 km || multiple || 2003–2019 || 02 Oct 2019 || 47 || align=left | Disc.: Spacewatch || |- id="2003 SS6" bgcolor=#FA8072 | – || || MCA || 20.5 || data-sort-value="0.24" | 240 m || single || 4 days || 21 Sep 2003 || 15 || align=left | Disc.: Spacewatch || |- id="2003 SN7" bgcolor=#E9E9E9 | 1 || || MBA-M || 18.4 || data-sort-value="0.88" | 880 m || multiple || 2003–2020 || 23 Jul 2020 || 34 || align=left | Disc.: LPL/Spacewatch IIAdded on 17 January 2021 || |- id="2003 SC9" bgcolor=#E9E9E9 | 0 || = (887221) || MBA-M || 18.2 || data-sort-value="0.96" | 960 m || multiple || 2003–2020 || 05 Nov 2020 || 53 || align=left | Disc.: LPL/Spacewatch II || |- id="2003 ST9" bgcolor=#E9E9E9 | 1 || || MBA-M || 18.49 || data-sort-value="0.60" | 600 m || multiple || 2003–2020 || 01 Aug 2020 || 18 || align=left | Disc.: LPL/Spacewatch II || |- id="2003 SX9" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.4 || data-sort-value="0.62" | 620 m || multiple || 1999–2020 || 10 Dec 2020 || 37 || align=left | Disc.: SpacewatchAlt.: 2019 JG17 || |- id="2003 SJ11" bgcolor=#FA8072 | 2 || || MCA || 19.58 || data-sort-value="0.61" | 610 m || multiple || 2003-2026 || 20 Sep 2026 || 28 || align=left | Disc.: NEAT || |- id="2003 SC15" bgcolor=#FA8072 | 0 || || MCA || 18.6 || data-sort-value="0.57" | 570 m || multiple || 2003–2019 || 05 Oct 2019 || 85 || align=left | Disc.: SpacewatchAlt.: 2016 TJ31 || |- id="2003 SF16" bgcolor=#fefefe | 0 || || MBA-I || 18.96 || data-sort-value="0.62" | 620 m || multiple || 2003-2024 || 02 Dec 2024 = (615452) || 49 || align=left | Disc.: LPL/Spacewatch II || |- id="2003 SS16" bgcolor=#d6d6d6 | 0 || = (887222) || MBA-O || 17.83 || 1.5 km || multiple || 2003–2021 || 10 Feb 2021 || 35 || align=left | Disc.: SpacewatchAdded on 9 March 2021Alt.: 2019 RY24 || |- id="2003 SO17" bgcolor=#FA8072 | 0 || || HUN || 19.0 || data-sort-value="0.47" | 470 m || multiple || 2003–2021 || 29 May 2021 || 38 || align=left | Disc.: Spacewatch || |- id="2003 SY17" bgcolor=#FFC2E0 | 1 || || APO || 18.1 || data-sort-value="0.85" | 850 m || multiple || 2000–2012 || 12 Sep 2012 || 70 || align=left | Disc.: LPL/Spacewatch IINEO larger than 1 kilometer || |- id="2003 SZ17" bgcolor=#FA8072 | 3 || || MCA || 20.03 || data-sort-value="0.28" | 280 m || multiple || 2003-2015 || 23 May 2015 || 53 || align=left | Disc.: NEAT || |- id="2003 SF18" bgcolor=#E9E9E9 | 1 || || MBA-M || 19.0 || data-sort-value="0.67" | 670 m || multiple || 2003–2020 || 14 Aug 2020 || 35 || align=left | Disc.: LPL/Spacewatch II || |- id="2003 SW18" bgcolor=#E9E9E9 | 0 || = (887223) || MBA-M || 18.0 || 1.1 km || multiple || 2003–2020 || 08 Sep 2020 || 63 || align=left | Disc.: Spacewatch || |- id="2003 SH19" bgcolor=#fefefe | 0 || || MBA-I || 18.98 || data-sort-value="0.48" | 480 m || multiple || 2003–2021 || 07 Nov 2021 || 88 || align=left | Disc.: Spacewatch || |- id="2003 SJ19" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.3 || data-sort-value="0.92" | 920 m || multiple || 2003–2020 || 11 Nov 2020 || 39 || align=left | Disc.: Spacewatch || |- id="2003 SL19" bgcolor=#fefefe | 2 || || MBA-I || 19.0 || data-sort-value="0.47" | 470 m || multiple || 2003–2020 || 07 Dec 2020 || 32 || align=left | Disc.: SpacewatchAdded on 9 March 2021Alt.: 2020 RJ43 || |- id="2003 SF20" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.12 || 1.3 km || multiple || 2003–2021 || 08 Sep 2021 || 75 || align=left | Disc.: LPL/Spacewatch II || |- id="2003 SL20" bgcolor=#fefefe | 0 || || MBA-I || 19.2 || data-sort-value="0.43" | 430 m || multiple || 2003–2020 || 14 Sep 2020 || 31 || align=left | Disc.: LPL/Spacewatch IIAdded on 19 October 2020 || |- id="2003 SS20" bgcolor=#fefefe | 0 || || MBA-I || 19.1 || data-sort-value="0.45" | 450 m || multiple || 2003–2019 || 28 May 2019 || 32 || align=left | Disc.: SpacewatchAdded on 17 January 2021 || |- id="2003 SW20" bgcolor=#E9E9E9 | 1 || || MBA-M || 18.6 || data-sort-value="0.80" | 800 m || multiple || 2003–2020 || 16 Sep 2020 || 31 || align=left | Disc.: LPL/Spacewatch IIAdded on 19 October 2020 || |- id="2003 SX21" bgcolor=#fefefe | 1 || || MBA-I || 18.8 || data-sort-value="0.52" | 520 m || multiple || 2003–2021 || 29 Aug 2021 || 33 || align=left | Disc.: LPL/Spacewatch IIAdded on 30 September 2021Alt.: 2021 NC36 || |- id="2003 SB23" bgcolor=#FA8072 | 0 || || MCA || 18.4 || data-sort-value="0.62" | 620 m || multiple || 2003–2020 || 14 May 2020 || 52 || align=left | Disc.: NEAT || |- id="2003 SA24" bgcolor=#fefefe | 1 || || MBA-I || 19.40 || data-sort-value="0.39" | 390 m || multiple || 2003–2021 || 29 Oct 2021 || 40 || align=left | Disc.: NEAT || |- id="2003 SD24" bgcolor=#fefefe | 0 || || MBA-I || 19.0 || data-sort-value="0.47" | 470 m || multiple || 2003–2016 || 03 Jan 2016 || 33 || align=left | Disc.: LPL/Spacewatch IIAlt.: 2007 UE13 || |- id="2003 SH24" bgcolor=#fefefe | 0 || || MBA-I || 18.5 || data-sort-value="0.59" | 590 m || multiple || 2003–2018 || 09 Nov 2018 || 49 || align=left | Disc.: NEAT || |- id="2003 SH27" bgcolor=#E9E9E9 | 2 || || MBA-M || 18.1 || 1.0 km || multiple || 2003–2012 || 03 Nov 2012 || 30 || align=left | Disc.: LINEAR || |- id="2003 SJ35" bgcolor=#FA8072 | 2 || || MCA || 18.7 || data-sort-value="0.54" | 540 m || multiple || 2003–2007 || 17 Nov 2007 || 46 || align=left | Disc.: NEATAlt.: 2007 TJ64 || |- id="2003 SK36" bgcolor=#FFC2E0 | 6 || || AMO || 21.7 || data-sort-value="0.16" | 160 m || single || 36 days || 25 Oct 2003 || 34 || align=left | Disc.: NEAT || |- id="2003 SL36" bgcolor=#FFC2E0 | 8 || || APO || 26.4 || data-sort-value="0.019" | 19 m || single || 8 days || 26 Sep 2003 || 27 || align=left | Disc.: LONEOS || |- id="2003 SG48" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.05 || 1.3 km || multiple || 2003-2023 || 15 Jan 2023 || 86 || align=left | Disc.: NEAT || |- id="2003 SZ48" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.9 || data-sort-value="0.78" | 780 m || multiple || 2003–2020 || 10 Dec 2020 || 48 || align=left | Disc.: NEAT || |- id="2003 SP53" bgcolor=#d6d6d6 | 1 || || MBA-O || 17.1 || 2.1 km || multiple || 2003–2020 || 13 Sep 2020 || 41 || align=left | Disc.: Spacewatch || |- id="2003 SQ53" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.9 || data-sort-value="0.78" | 780 m || multiple || 2003–2020 || 07 Dec 2020 || 31 || align=left | Disc.: SpacewatchAdded on 11 May 2021Alt.: 2020 TG45 || |- id="2003 SR53" bgcolor=#E9E9E9 | 0 || = (887224) || MBA-M || 17.9 || 1.1 km || multiple || 2003–2020 || 14 Nov 2020 || 80 || align=left | Disc.: Spacewatch || |- id="2003 SP54" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.8 || 1.5 km || multiple || 2003–2017 || 16 Dec 2017 || 80 || align=left | Disc.: LONEOSAlt.: 2008 WX69 || |- id="2003 SE55" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.52 || 1.7 km || multiple || 2003–2021 || 31 Oct 2021 || 103 || align=left | Disc.: LONEOS || |- id="2003 SK56" bgcolor=#FA8072 | 2 || || MCA || 18.9 || data-sort-value="0.49" | 490 m || multiple || 2003–2019 || 03 Jul 2019 || 35 || align=left | Disc.: LONEOS || |- id="2003 SN56" bgcolor=#fefefe | 2 || || MBA-I || 17.8 || data-sort-value="0.82" | 820 m || multiple || 2003–2016 || 03 Jan 2016 || 42 || align=left | Disc.: LONEOSAlt.: 2003 SN307, 2011 WS62 || |- id="2003 SK63" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.8 || data-sort-value="0.73" | 730 m || multiple || 2003–2020 || 14 Oct 2020 || 32 || align=left | Disc.: SpacewatchAdded on 11 May 2021Alt.: 2016 WM32 || |- id="2003 SQ63" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.97 || 1.1 km || multiple || 2003–2021 || 27 Nov 2021 || 36 || align=left | Disc.: SpacewatchAdded on 19 October 2020 || |- id="2003 SL68" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.5 || data-sort-value="0.65" | 650 m || multiple || 2003-2024 || 26 Dec 2024 || 62 || align=left | Disc.: Spacewatch || 6 |- id="2003 SM68" bgcolor=#FA8072 | – || || MCA || 19.9 || data-sort-value="0.31" | 310 m || single || 36 days || 23 Oct 2003 || 14 || align=left | Disc.: Spacewatch || |- id="2003 SV68" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.96 || data-sort-value="0.90" | 900 m || multiple || 2003–2021 || 04 Oct 2021 || 49 || align=left | Disc.: SpacewatchAlt.: 2003 SF366 || |- id="2003 SM72" bgcolor=#fefefe | 1 || || MBA-I || 19.1 || data-sort-value="0.45" | 450 m || multiple || 2003–2020 || 11 Oct 2020 || 53 || align=left | Disc.: LPL/Spacewatch II || |- id="2003 SO72" bgcolor=#fefefe | 0 || || MBA-I || 18.94 || data-sort-value="0.48" | 480 m || multiple || 2003–2021 || 03 Oct 2021 || 58 || align=left | Disc.: LPL/Spacewatch IIAlt.: 2014 TW60 || |- id="2003 SR72" bgcolor=#d6d6d6 | 1 || || HIL || 16.98 || 2.2 km || multiple || 2003–2019 || 25 Nov 2019 || 41 || align=left | Disc.: LPL/Spacewatch II || |- id="2003 SB73" bgcolor=#fefefe | 0 || || MBA-I || 17.9 || data-sort-value="0.78" | 780 m || multiple || 2003–2018 || 10 Mar 2018 || 46 || align=left | Disc.: Spacewatch || |- id="2003 SH74" bgcolor=#fefefe | 3 || || MBA-I || 18.8 || data-sort-value="0.52" | 520 m || multiple || 2003–2014 || 17 Oct 2014 || 25 || align=left | Disc.: SpacewatchAlt.: 2014 QF18 || |- id="2003 SX74" bgcolor=#fefefe | 0 || || MBA-I || 19.4 || data-sort-value="0.39" | 390 m || multiple || 2003–2020 || 07 Dec 2020 || 35 || align=left | Disc.: Spacewatch || |- id="2003 SD75" bgcolor=#FA8072 | 0 || || MCA || 20.62 || data-sort-value="0.22" | 220 m || multiple || 2003–2019 || 03 Dec 2019 || 58 || align=left | Disc.: Spacewatch || |- id="2003 SH84" bgcolor=#FFC2E0