| Comet Designation | Comet Name | Discovery Observation | Discovery Announced | IAUC | Date of Naming | IAUC - MPEC | Notes |
| C/2002 W9 | C/SOHO | 2002 Nov 23 | 2004 Jan 1 | A3 | 2004 Jan 1 | A3 | Disc by Evans |
| C/2002 W10 | C/SOHO | 2002 Nov 24 | 2004 Jan 1 | A3 | 2004 Jan 1 | A3 | Disc by Leprette |
| C/2002 W11 | C/SOHO | 2002 Nov 25 | 2004 Jan 1 | A3 | 2004 Jan 1 | A3 | Disc by Zhou |
| C/2002 W12 | C/SOHO | 2002 Nov 28 | 2004 Jan 1 | A3 | 2004 Jan 1 | A3 | Disc by Sachs |
| C/2002 W13 | C/SOHO | 2002 Nov 28 | 2004 Jan 1 | A3 | 2004 Jan 1 | A3 | Disc by Zhou |
| C/2002 W14 | C/SOHO | 2002 Nov 29 | 2004 Jan 1 | A3 | 2004 Jan 1 | A3 | Disc by Hoenig |
| C/2002 W15 | C/SOHO | 2002 Nov 29 | 2004 Jan 2 | A5 | 2004 Jan 2 | A5 | Disc by Leprette |
| C/2002 W16 | C/SOHO | 2002 Nov 29 | 2004 Jan 2 | A5 | 2004 Jan 2 | A5 | Disc by Hoenig |
| C/2002 W17 | C/SOHO | 2002 Nov 29 | 2004 Jan 2 | A5 | 2004 Jan 2 | A5 | Disc by Hoenig |
| C/2002 X7 | C/SOHO | 2002 Dec 1 | 2004 Jan 9 | 8264 | 2004 Jan 9 | A36 | Disc by Zhou |
| C/2002 X8 | C/SOHO | 2002 Dec 5 | 2004 Jan 9 | 8264 | 2004 Jan 9 | A36 | Disc by Meyer |
| C/2002 X9 | C/SOHO | 2002 Dec 5 | 2004 Jan 9 | 8264 | 2004 Jan 9 | A36 | Disc by Hoenig |
| C/2002 X10 | C/SOHO | 2002 Dec 5 | 2004 Jan 9 | 8264 | 2004 Jan 9 | A36 | Disc by Zhou |
| C/2002 X11 | C/SOHO | 2002 Dec 8 | 2004 Jan 9 | 8264 | 2004 Jan 9 | A36 | Disc by Kracht |
| C/2002 X12 | C/SOHO | 2002 Dec 9 | 2004 Jan 9 | 8264 | 2004 Jan 9 | A36 | Disc by Zhou |
| C/2002 X13 | C/SOHO | 2002 Dec 3 | 2004 Jan 10 | A40 | 2004 Jan 10 | A40 | Disc by Hoffman |
| C/2002 X14 | C/SOHO | 2002 Dec 12 | 2004 Jan 10 | A40 | 2004 Jan 10 | A40 | Disc by Sachs |
| C/2002 X15 | C/SOHO | 2002 Dec 14 | 2004 Jan 10 | A40 | 2004 Jan 10 | A40 | Disc by Hoenig |
| C/2002 Y3 | C/SOHO | 2002 Dec 18 | 2004 Jan 10 | A40 | 2004 Jan 10 | A40 | Disc by Kracht |
| C/2002 X16 | C/SOHO | 2002 Dec 11 | 2004 Jan 14 | A52 | 2004 Jan 14 | A52 | Disc by Leprette and Oates |
| C/2002 Y4 | C/SOHO | 2002 Dec 26 | 2004 Jan 14 | A52 | 2004 Jan 14 | A52 | Disc by Kracht |
| C/2003 A3 | C/SOHO | 2003 Jan 7 | 2004 Jan 14 | A52 | 2004 Jan 14 | A52 | Disc by Matson |
| C/2003 A4 | C/SOHO | 2003 Jan 16 | 2004 Jan 14 | A52 | 2004 Jan 14 | A52 | Disc by Matson |
| C/2003 A5 | C/SOHO | 2003 Jan 16 | 2004 Jan 14 | A52 | 2004 Jan 14 | A52 | Disc by Matson |
| C/2003 WT42 | C/LINEAR | 2003 Nov 19 | 2004 Jan 16 | 8270 | 2004 Jan 16 | 8270 | Asteroidal; coma disc by mult obs |
| C/2003 B2 | C/SOHO | 2003 Jan 18 | 2004 Jan 23 | B34 | 2004 Jan 23 | B34 | Disc by Oates |
| C/2003 C1 | C/SOHO | 2003 Feb 3 | 2004 Jan 23 | B34 | 2004 Jan 23 | B34 | Disc by Leprette |
| C/2003 C2 | C/SOHO | 2003 Feb 9 | 2004 Jan 23 | B34 | 2004 Jan 23 | B34 | Disc by Evans |
| C/2003 C3 | C/SOHO | 2003 Feb 11 | 2004 Jan 23 | B34 | 2004 Jan 23 | B34 | Disc by Kracht |
| C/2003 C4 | C/SOHO | 2003 Feb 14 | 2004 Jan 23 | B34 | 2004 Jan 23 | B34 | Disc by Sachs |
| C/2003 C5 | C/SOHO | 2003 Feb 17 | 2004 Jan 23 | B34 | 2004 Jan 23 | B34 | Disc by Sachs |
| C/2003 D1 | C/SOHO | 2003 Feb 28 | 2004 Jan 23 | B34 | 2004 Jan 23 | B34 | Disc by Leprette |
| P/2003 SQ215 | P/NEAT-LONEOS | 2003 Sep 24 | 2004 Jan 23 | 8274 | 2004 Jan 23 | 8274 | Asteroidal; coma disc by Fitzsimmons, Snodgrass, and Hainaut |
| C/2004 B1 | C/LINEAR | 2004 Jan 29 | 2004 Jan 30 | 8279 | 2004 Jan 30 | 8279 | Asteroidal; coma disc by Young |
| P/2003 WC7 | P/LINEAR-CATALINA | 2003 Nov 18 | 2004 Feb 1 | 8280 | 2004 Feb 1 | 8280 | Asteroidal; coma disc by mult obs from NEO Conf Page |
| C/2003 E2 | C/SOHO | 2003 Mar 4 | 2004 Feb 6 | C31 | 2004 Feb 6 | C31 | Disc by Evans |
| C/2003 E3 | C/SOHO | 2003 Mar 11 | 2004 Feb 6 | C31 | 2004 Feb 6 | C31 | Disc by Hoenig |
| C/2003 E4 | C/SOHO | 2003 Mar 15 | 2004 Feb 6 | C31 | 2004 Feb 6 | C31 | Disc by Sachs |
| C/2003 F3 | C/SOHO | 2003 Mar 20 | 2004 Feb 6 | C31 | 2004 Feb 6 | C31 | Disc by Oates |
| C/2003 F4 | C/SOHO | 2003 Mar 25 | 2004 Feb 6 | C31 | 2004 Feb 6 | C31 | Disc by Leprette |
| C/2004 C1 | C/Larsen | 2004 Feb 12 | 2004 Feb 13 | 8286 | 2004 Feb 13 | 8286 | Disc by Larsen on Spacewatch images |
| C/2003 F5 | C/SOHO | 2003 Mar 29 | 2004 Feb 13 | C53 | 2004 Feb 13 | C53 | Disc by Kracht |
| C/2003 G4 | C/SOHO | 2003 Apr 2 | 2004 Feb 13 | C53 | 2004 Feb 13 | C53 | Disc by Leprette |
| C/2003 H8 | C/SOHO | 2003 Apr 22 | 2004 Feb 13 | C53 | 2004 Feb 13 | C53 | Disc by Zhou |
| C/2003 H9 | C/SOHO | 2003 Apr 24 | 2004 Feb 13 | C53 | 2004 Feb 13 | C53 | Disc by Zhou |
| C/2003 H10 | C/SOHO | 2003 Apr 28 | 2004 Feb 13 | C54 | 2004 Feb 13 | C54 | Disc by Hoffman |
| C/2003 H11 | C/SOHO | 2003 Apr 29 | 2004 Feb 13 | C54 | 2004 Feb 13 | C54 | Disc by Kracht |
| C/2003 H12 | C/SOHO | 2003 Apr 30 | 2004 Feb 13 | C54 | 2004 Feb 13 | C54 | Disc by Matson |
| C/2003 J2 | C/SOHO | 2003 May 1 | 2004 Feb 13 | C54 | 2004 Feb 13 | C54 | Disc by Matson |
| C/2003 J3 | C/SOHO | 2003 May 5 | 2004 Feb 18 | D8 | 2004 Feb 18 | D8 | Disc by Kracht |
| C/2003 J4 | C/SOHO | 2003 May 5 | 2004 Feb 18 | D8 | 2004 Feb 18 | D8 | Disc by Matson |
| C/2003 J5 | C/SOHO | 2003 May 8 | 2004 Feb 18 | D8 | 2004 Feb 18 | D8 | Disc by Shkreby |
| C/2003 J6 | C/SOHO | 2003 May 9 | 2004 Feb 18 | D8 | 2004 Feb 18 | D8 | Disc by Sachs |
| C/2003 J7 | C/SOHO | 2003 May 14 | 2004 Feb 18 | D8 | 2004 Feb 18 | D8 | Disc by Otterstedt |
| C/2004 D1 | C/NEAT | 2004 Feb 17 | 2004 Feb 27 | 8294 | 2004 Feb 27 | 8294 | Asteroidal; coma disc by mult obs from NEO Conf Page |
| C/2003 T5 | C/SOHO | 2003 Oct 8 | 2004 Mar 9 | 8300 | 2004 Mar 9 | 8300 | Disc by Sachs |
| C/2003 T6 | C/SOHO | 2003 Oct 9 | 2004 Mar 9 | 8300 | 2004 Mar 9 | 8300 | Disc by Sachs |
| C/2003 T7 | C/SOHO | 2003 Oct 9 | 2004 Mar 9 | 8300 | 2004 Mar 9 | 8300 | Disc by Sachs |
| P/2004 DO29 | P/Spacewatch-LINEAR | 2004 Feb 17 | 2004 Mar 16 | 8305 | 2004 Mar 16 | 8305 | Asteroidal; coma disc by Sheppard, Fernandez, and Jewitt |
| C/2003 J8 | C/SOHO | 2003 May 15 | 2004 Mar 19 | 8309 | 2004 Mar 19 | 8309 | Disc by Kracht |
| C/2003 J9 | C/SOHO | 2003 May 15 | 2004 Mar 19 | 8309 | 2004 Mar 19 | 8309 | Disc by Kracht |
| C/2003 K7 | C/SOHO | 2003 May 22 | 2004 Mar 19 | 8309 | 2004 Mar 19 | 8309 | Disc by Kracht |
| C/2003 K8 | C/SOHO | 2003 May 22 | 2004 Mar 19 | 8309 | 2004 Mar 19 | 8309 | Disc by Evans |
| C/2003 K9 | C/SOHO | 2003 May 23 | 2004 Mar 19 | 8309 | 2004 Mar 19 | 8309 | Disc by Kracht |
| C/2004 F1 | C/NEAT | 2004 Mar 18 | 2004 Mar 19 | 8309 | 2004 Mar 19 | 8309 | |
| C/2004 F2 | C/LINEAR | 2004 Mar 25 | 2004 Mar 29 | 8313 | 2004 Mar 29 | 8313 | |
| P/2004 F3 | P/NEAT | 2004 Mar 28 | 2004 Mar 29 | 8313 | 2004 Mar 29 | 8313 | |
| P/2004 CB | P/LINEAR | 2004 Feb 3 | 2004 Mar 31 | 8314 | 2004 Mar 31 | 8314 | Asteroidal; Coma disc by McNaught |
| C/2004 G1 | C/LINEAR | 2004 Apr 9 | 2004 Apr 10 | 8318 | 2004 Apr 10 | 8318 | |
| C/2003 K10 | C/SOHO | 2003 May 26 | 2004 Apr 10 | G19 | 2004 Apr 10 | G19 | Disc by Shrekby |
| C/2003 K11 | C/SOHO | 2003 May 27 | 2004 Apr 10 | G19 | 2004 Apr 10 | G19 | Disc by Chen |
| C/2003 K12 | C/SOHO | 2003 May 29 | 2004 Apr 10 | G19 | 2004 Apr 10 | G19 | Disc by Hoffman |
| C/2003 L3 | C/SOHO | 2003 Jun 2 | 2004 Apr 10 | G19 | 2004 Apr 10 | G19 | Disc by Leprette |
| C/2003 L4 | C/SOHO | 2003 Jun 5 | 2004 Apr 10 | G19 | 2004 Apr 10 | G19 | Disc by Kracht |
| C/2003 L5 | C/SOHO | 2003 Jun 8 | 2004 Apr 10 | G20 | 2004 Apr 10 | G20 | Disc by Kracht |
| C/2003 L6 | C/SOHO | 2003 Jun 9 | 2004 Apr 10 | G20 | 2004 Apr 10 | G20 | Disc by Shrekby |
| C/2003 L7 | C/SOHO | 2003 Jun 13 | 2004 Apr 10 | G20 | 2004 Apr 10 | G20 | Disc by Boschat |
| C/2004 F4 | C/Bradfield | 2004 Mar 23 | 2004 Apr 12 | 8319 | 2004 Apr 12 | 8319 | |
| C/2004 DZ61 | C/Catalina-LINEAR | 2004 Feb 18 | 2004 Apr 14 | 8321 | 2004 Apr 14 | 8321 | Asteroidal; Coma disc by Fernandez and Jewitt |
| P/2004 EW38 | P/Catalina-LINEAR | 2004 Mar 14 | 2004 Apr 15 | 8322 | 2004 Apr 15 | 8322 | Asteroidal; Coma disc by mult obs |
| C/2004 G2 | C/SOHO | 2004 Apr 10 | 2004 Apr 16 | H1 | 2004 Apr 16 | H1 | Disc by Hoffman |
| C/2003 L8 | C/SOHO | 2003 Jun 15 | 2004 Apr 17 | H20 | 2004 Apr 17 | H20 | Disc by Kracht |
| C/2003 M1 | C/SOHO | 2003 Jun 16 | 2004 Apr 17 | H20 | 2004 Apr 17 | H20 | Disc by Cernis |
| C/2003 M2 | C/SOHO | 2003 Jun 17 | 2004 Apr 17 | H20 | 2004 Apr 17 | H20 | Disc by Sachs |
| C/2003 M3 | C/SOHO | 2003 Jun 17 | 2004 Apr 17 | H20 | 2004 Apr 17 | H20 | Disc by Kracht |
| C/2003 M4 | C/SOHO | 2003 Jun 18 | 2004 Apr 17 | H21 | 2004 Apr 17 | H21 | Disc by Kracht |
| C/2003 M5 | C/SOHO | 2003 Jun 19 | 2004 Apr 17 | H21 | 2004 Apr 17 | H21 | Disc by Boschat |
| C/2003 M6 | C/SOHO | 2003 Jun 19 | 2004 Apr 17 | H21 | 2004 Apr 17 | H21 | Disc by Kracht |
| C/2003 M7 | C/SOHO | 2003 Jun 20 | 2004 Apr 17 | H21 | 2004 Apr 17 | H21 | Disc by Zhou |
| C/2004 H1 | C/LINEAR | 2004 Apr 16 | 2004 Apr 18 | 8325 | 2004 Apr 18 | 8325 | Asteroidal; coma disc by mult obs from NEO Conf Page |
| P/2004 H2 | P/Larsen | 2004 Apr 19 | 2004 Apr 21 | 8328 | 2004 Apr 21 | 8328 | Disc by Larsen from Spacewatch images |
| C/2003 K13 | C/SOHO | 2003 May 23 | 2004 Apr 22 | H49 | 2004 Apr 22 | H49 | Disc by Evans |
| C/2003 M8 | C/SOHO | 2003 Jun 22 | 2004 Apr 22 | H49 | 2004 Apr 22 | H49 | Disc by Zhou |
| C/2003 M9 | C/SOHO | 2003 Jun 23 | 2004 Apr 22 | H49 | 2004 Apr 22 | H49 | Disc by Zhou |
| C/2003 M10 | C/SOHO | 2003 Jun 23 | 2004 Apr 22 | H49 | 2004 Apr 22 | H49 | Disc by Zhou |
| C/2003 M11 | C/SOHO | 2003 Jun 23 | 2004 Apr 22 | H49 | 2004 Apr 22 | H49 | Disc by Leprette |
| C/2003 M12 | C/SOHO | 2003 Jun 23 | 2004 Apr 22 | H49 | 2004 Apr 22 | H49 | Disc by Leprette/Kracht |
| P/2004 H3 | P/Larsen | 2004 Apr 22 | 2004 Apr 24 | 8332 | 2004 Apr 24 | 8332 | Disc by Larsen from Spacewatch images |
| C/2003 N1 | C/SOHO | 2003 Jul 5 | 2004 Apr 29 | H87 | 2004 Apr 29 | H87 | Disc by Leprette/Sachs |
| C/2003 N2 | C/SOHO | 2003 Jul 13 | 2004 Apr 29 | H87 | 2004 Apr 29 | H87 | Disc by Sachs |
| C/2003 O4 | C/SOHO | 2003 Jul 18 | 2004 Apr 29 | H87 | 2004 Apr 29 | H87 | Disc by Sachs |
| C/2003 O5 | C/SOHO | 2003 Jul 20 | 2004 Apr 29 | H87 | 2004 Apr 29 | H87 | Disc by Sachs |
| C/2003 O6 | C/SOHO | 2003 Jul 24 | 2004 Apr 29 | H88 | 2004 Apr 29 | H88 | Disc by Zhou |
| C/2003 O7 | C/SOHO | 2003 Jul 25 | 2004 Apr 29 | H88 | 2004 Apr 29 | H88 | Disc by Boschat |
| C/2003 O8 | C/SOHO | 2003 Jul 30 | 2004 Apr 29 | H88 | 2004 Apr 29 | H88 | Disc by Sachs |
| C/2003 P1 | C/SOHO | 2003 Aug 2 | 2004 Apr 29 | H88 | 2004 Apr 29 | H88 | Disc by Boschat |
| C/2003 P2 | C/SOHO | 2003 Aug 3 | 2004 Apr 29 | H88 | 2004 Apr 29 | H88 | Disc by Boschat |
| P/2004 HC18 | P/LINEAR | 2004 Apr 17 | 2004 Apr 30 | 8333 | 2004 Apr 30 | 8333 | Asteroidal; Coma disc by Gleason and Larsen |
| C/2003 P3 | C/SOHO | 2003 Aug 5 | 2004 May 4 | J19 | 2004 May 4 | J19 | Disc by Hoffman |
| C/2003 Q1 | C/SOHO | 2003 Aug 20 | 2004 May 4 | J19 | 2004 May 4 | J19 | Disc by Hoffman |
| C/2003 Q2 | C/SOHO | 2003 Aug 23 | 2004 May 4 | J19 | 2004 May 4 | J19 | Disc by Sachs |
| C/2003 Q3 | C/SOHO | 2003 Aug 23 | 2004 May 4 | J19 | 2004 May 4 | J19 | Disc by Sachs |
| C/2003 Q4 | C/SOHO | 2003 Aug 25 | 2004 May 4 | J19 | 2004 May 4 | J19 | Disc by Boschat |
| C/2003 Q5 | C/SOHO | 2003 Aug 26 | 2004 May 4 | J19 | 2004 May 4 | J19 | Disc by Sachs |
| C/2003 Q6 | C/SOHO | 2003 Aug 26 | 2004 May 4 | J19 | 2004 May 4 | J19 | Disc by Kracht |
| C/2003 U4 | C/SOHO | 2003 Oct 21 | 2004 May 5 | J21 | 2004 May 5 | J21 | Disc by Matson |
| C/2003 W2 | C/SOHO | 2003 Nov 29 | 2004 May 5 | J21 | 2004 May 5 | J21 | Disc by Zhou |
| C/2003 Y1 | C/SOHO | 2003 Dec 20 | 2004 May 5 | J21 | 2004 May 5 | J21 | Disc by Meyer |
| C/2004 B2 | C/SOHO | 2003 Jan 28 | 2004 May 5 | J21 | 2004 May 5 | J21 | Disc by Kracht |
| C/2004 C2 | C/SOHO | 2003 Feb 4 | 2004 May 5 | J21 | 2004 May 5 | J21 | Disc by Leprette |
| C/2004 H4 | C/SOHO | 2003 Apr 16 | 2004 May 5 | J21 | 2004 May 5 | J21 | Disc by Kracht |
| C/2004 H5 | C/SOHO | 2003 Apr 30 | 2004 May 5 | J21 | 2004 May 5 | J21 | Disc by Battams |
| C/2004 HV60 | C/Spacewatch | 2004 Apr 25 | 2004 May 9 | 8337 | 2004 May 9 | 8337 | Asteroidal; Coma disc by Bernardi, Pittichova, and Moskovitz |
| C/2003 Q7 | C/SOHO | 2003 Aug 28 | 2004 May 13 | J57 | 2004 May 13 | J57 | Disc by Boschat |
| C/2003 Q8 | C/SOHO | 2003 Aug 29 | 2004 May 13 | J57 | 2004 May 13 | J57 | Disc by Boschat |
| C/2003 Q9 | C/SOHO | 2003 Aug 30 | 2004 May 13 | J57 | 2004 May 13 | J57 | Disc by Sachs |
| C/2003 R2 | C/SOHO | 2003 Sep 5 | 2004 May 13 | J57 | 2004 May 13 | J57 | Disc by Zhou |
| C/2003 R3 | C/SOHO | 2003 Sep 8 | 2004 May 13 | J57 | 2004 May 13 | J57 | Disc by Sachs |
| C/2003 S5 | C/SOHO | 2003 Sep 18 | 2004 May 13 | J58 | 2004 May 13 | J58 | Disc by Leprette |
| C/2003 S6 | C/SOHO | 2003 Sep 18 | 2004 May 13 | J58 | 2004 May 13 | J58 | Disc by Boschat |
| C/2003 S7 | C/SOHO | 2003 Sep 21 | 2004 May 13 | J58 | 2004 May 13 | J58 | Disc by Sachs |
| C/2003 S8 | C/SOHO | 2003 Sep 25 | 2004 May 13 | J58 | 2004 May 13 | J58 | Disc by Sachs |
| C/2003 T8 | C/SOHO | 2003 Oct 8 | 2004 May 13 | J58 | 2004 May 13 | J58 | Disc by Matson |
| C/2003 R4 | C/SOHO | 2003 Sep 7 | 2004 May 13 | J59 | 2004 May 13 | J59 | Disc by Kracht |
| C/2003 R5 | C/SOHO | 2003 Sep 8 | 2004 May 13 | J59 | 2004 May 13 | J59 | Disc by Cernis |
| C/2003 S9 | C/SOHO | 2003 Sep 25 | 2004 May 13 | J59 | 2004 May 13 | J59 | Disc by Kracht |
| C/2003 Q10 | C/SOHO | 2003 Aug 25 | 2004 May 18 | K16 | 2004 May 18 | K16 | Disc by Boschat |
| C/2003 T9 | C/SOHO | 2003 Oct 9 | 2004 May 18 | K16 | 2004 May 18 | K16 | Disc by Zhou |
| C/2003 T10 | C/SOHO | 2003 Oct 13 | 2004 May 18 | K16 | 2004 May 18 | K16 | Disc by Sachs |
| C/2003 T11 | C/SOHO | 2003 Oct 15 | 2004 May 18 | K16 | 2004 May 18 | K16 | Disc by Boschat |
| C/2003 U5 | C/SOHO | 2003 Oct 16 | 2004 May 18 | K16 | 2004 May 18 | K16 | Disc by Leprette |
| C/2003 U6 | C/SOHO | 2003 Oct 20 | 2004 May 18 | K16 | 2004 May 18 | K16 | Disc by Sachs |
| C/2003 T12 | C/SOHO | 2003 Oct 9 | 2004 May 21 | K33 | 2004 May 21 | K33 | Disc by Danaher |
| C/2003 U7 | C/SOHO | 2003 Oct 23 | 2004 May 21 | K33 | 2004 May 21 | K33 | Disc by Zhou |
| C/2003 U8 | C/SOHO | 2003 Oct 25 | 2004 May 21 | K33 | 2004 May 21 | K33 | Disc by Leprette |
| C/2003 U9 | C/SOHO | 2003 Oct 26 | 2004 May 21 | K33 | 2004 May 21 | K33 | Disc by Boschat, Sachs, and Danaher |
| C/2003 V2 | C/SOHO | 2003 Nov 1 | 2004 May 21 | K34 | 2004 May 21 | K34 | Disc by Kracht |
| C/2003 V3 | C/SOHO | 2003 Nov 3 | 2004 May 21 | K34 | 2004 May 21 | K34 | Disc by Boschat |
| C/2003 V4 | C/SOHO | 2003 Nov 4 | 2004 May 21 | K34 | 2004 May 21 | K34 | Disc by Boschat |
| C/2003 V5 | C/SOHO | 2003 Nov 5 | 2004 May 21 | K34 | 2004 May 21 | K34 | Disc by Boschat |
| C/2003 V6 | C/SOHO | 2003 Nov 9 | 2004 May 21 | K34 | 2004 May 21 | K34 | Disc by Hoffman |
| C/2003 V7 | C/SOHO | 2003 Nov 11 | 2004 May 21 | K34 | 2004 May 21 | K34 | Disc by Matson |
| C/2004 K1 | C/LINEAR | 2004 May 21 | 2004 May 24 | 8343 | 2004 May 24 | 8343 | Asteroidal; Coma disc by Spahr |
| C/2003 V8 | C/SOHO | 2003 Nov 13 | 2004 May 25 | K54 | 2004 May 25 | K54 | Disc by Sachs |
| C/2003 W3 | C/SOHO | 2003 Nov 16 | 2004 May 25 | K54 | 2004 May 25 | K54 | Disc by Zhou |
| C/2003 W4 | C/SOHO | 2003 Nov 21 | 2004 May 25 | K54 | 2004 May 25 | K54 | Disc by Evans |
| C/2003 W5 | C/SOHO | 2003 Nov 22 | 2004 May 25 | K54 | 2004 May 25 | K54 | Disc by Boschat |
| C/2003 W6 | C/SOHO | 2003 Nov 25 | 2004 May 25 | K55 | 2004 May 25 | K54 | Disc by Sachs |
| C/2003 W7 | C/SOHO | 2003 Nov 27 | 2004 May 25 | K55 | 2004 May 25 | K54 | Disc by Zhou |
| C/2003 W8 | C/SOHO | 2003 Nov 29 | 2004 May 25 | K55 | 2004 May 25 | K54 | Disc by Gallina |
| C/2003 X1 | C/SOHO | 2003 Dec 1 | 2004 May 25 | K55 | 2004 May 25 | K54 | Disc by Hoffman |
| C/2003 X2 | C/SOHO | 2003 Dec 1 | 2004 May 25 | K55 | 2004 May 25 | K54 | Disc by Boschat |
| C/2003 X3 | C/SOHO | 2003 Dec 2 | 2004 May 25 | K55 | 2004 May 25 | K54 | Disc by Zhou |
| C/2004 H6 | C/SWAN | 2004 Apr 29 | 2004 May 27 | 8346 | 2004 May 27 | 8346 | Disc by Zhou, Cernis, and Mattiazzo |
| P/2004 K2 | P/McNaught | 2004 May 20 | 2004 May 28 | 8348 | 2004 May 28 | 8348 | |
| C/2004 K3 | C/LINEAR | 2004 May 29 | 2004 Jun 3 | L4 | 2004 Jun 3 | L4 | Asteroidal; Coma disc by mult obs from NEO Conf Page |
| C/2003 X4 | C/SOHO | 2003 Dec 4 | 2004 Jun 10 | L24 | 2004 Jun 10 | L24 | Disc by Kracht |
| C/2003 X5 | C/SOHO | 2003 Dec 4 | 2004 Jun 10 | L24 | 2004 Jun 10 | L24 | Disc by Boschat |
| C/2003 X6 | C/SOHO | 2003 Dec 6 | 2004 Jun 10 | L24 | 2004 Jun 10 | L24 | Disc by Zhou |
| C/2003 X7 | C/SOHO | 2003 Dec 7 | 2004 Jun 10 | L24 | 2004 Jun 10 | L24 | Disc by Boschat |
| C/2003 X8 | C/SOHO | 2003 Dec 8 | 2004 Jun 10 | L24 | 2004 Jun 10 | L24 | Disc by Hoffman |
| C/2003 X9 | C/SOHO | 2003 Dec 8 | 2004 Jun 10 | L24 | 2004 Jun 10 | L24 | Disc by Zhou |
| C/2003 X10 | C/SOHO | 2003 Dec 11 | 2004 Jun 10 | L25 | 2004 Jun 10 | L25 | Disc by Leprette |
| C/2003 X11 | C/SOHO | 2003 Dec 13 | 2004 Jun 10 | L25 | 2004 Jun 10 | L25 | Disc by Zhou |
| C/2003 Y2 | C/SOHO | 2003 Dec 19 | 2004 Jun 10 | L25 | 2004 Jun 10 | L25 | Disc by Leprette |
| C/2003 Y3 | C/SOHO | 2003 Dec 19 | 2004 Jun 10 | L25 | 2004 Jun 10 | L25 | Disc by Matson |
| C/2003 Y4 | C/SOHO | 2003 Dec 20 | 2004 Jun 10 | L25 | 2004 Jun 10 | L25 | Disc by Kracht |
| C/2003 Y5 | C/SOHO | 2003 Dec 22 | 2004 Jun 10 | L25 | 2004 Jun 10 | L25 | Disc by Boschat |
| C/2003 Y6 | C/SOHO | 2003 Dec 23 | 2004 Jun 10 | L26 | 2004 Jun 10 | L26 | Disc by Sachs |
| C/2003 Y7 | C/SOHO | 2003 Dec 24 | 2004 Jun 10 | L26 | 2004 Jun 10 | L26 | Disc by Kracht |
| C/2004 L1 | C/LINEAR | 2004 Jun 12 | 2004 Jun 14 | 8352 | 2004 Jun 14 | 8352 | Asteroidal; Coma disc by Young |
| C/2003 Y8 | C/SOHO | 2003 Dec 25 | 2004 Jun 15 | L67 | 2004 Jun 15 | L67 | Disc by Boschat |
| C/2003 Y9 | C/SOHO | 2003 Dec 25 | 2004 Jun 15 | L67 | 2004 Jun 15 | L67 | Disc by Matson |
| C/2003 Y10 | C/SOHO | 2003 Dec 26 | 2004 Jun 15 | L67 | 2004 Jun 15 | L67 | Disc by Matson |
| C/2003 Y11 | C/SOHO | 2003 Dec 26 | 2004 Jun 15 | L67 | 2004 Jun 15 | L67 | Disc by Oates |
| C/2003 Y12 | C/SOHO | 2003 Dec 27 | 2004 Jun 15 | L68 | 2004 Jun 15 | L68 | Disc by Matson |
| C/2003 Y13 | C/SOHO | 2003 Dec 27 | 2004 Jun 15 | L68 | 2004 Jun 15 | L68 | Disc by Zhou |
| C/2003 Y14 | C/SOHO | 2003 Dec 27 | 2004 Jun 15 | L68 | 2004 Jun 15 | L68 | Disc by Matson |
| C/2003 Y15 | C/SOHO | 2003 Dec 31 | 2004 Jun 15 | L68 | 2004 Jun 15 | L68 | Disc by Matson |
| C/2004 A2 | C/SOHO | 2003 Jan 9 | 2004 Jun 16 | M4 | 2004 Jun 16 | M4 | Disc by Sachs |
| C/2004 A3 | C/SOHO | 2003 Jan 15 | 2004 Jun 16 | M4 | 2004 Jun 16 | M4 | Disc by Hoffman |
| C/2004 B3 | C/SOHO | 2003 Jan 18 | 2004 Jun 16 | M4 | 2004 Jun 16 | M4 | Disc by Zhou |
| C/2004 B4 | C/SOHO | 2003 Jan 18 | 2004 Jun 16 | M4 | 2004 Jun 16 | M4 | Disc by Sachs |
| C/2004 B5 | C/SOHO | 2003 Jan 19 | 2004 Jun 16 | M4 | 2004 Jun 16 | M4 | Disc by Hoenig |
| C/2004 L2 | C/LINEAR | 2004 Jun 11 | 2004 Jun 17 | 8356 | 2004 Jun 17 | 8356 | Asteroidal; Coma disc by mult obs from NEO Conf Page |
| C/2003 X4 | C/SOHO | 2003 Dec 4 | 2004 Jun 10 | L24 | 2004 Jun 10 | L24 | Disc by Kracht |
| C/2004 B6 | C/SOHO | 2004 Jan 21 | 2004 Jun 17 | M10 | 2004 Jun 17 | M10 | Disc by Danaher |
| C/2004 B7 | C/SOHO | 2004 Jan 21 | 2004 Jun 17 | M10 | 2004 Jun 17 | M10 | Disc by Boschat |
| C/2004 B8 | C/SOHO | 2004 Jan 24 | 2004 Jun 17 | M10 | 2004 Jun 17 | M10 | Disc by Hoenig |
| C/2004 B9 | C/SOHO | 2004 Jan 25 | 2004 Jun 17 | M10 | 2004 Jun 17 | M10 | Disc by Boschat |
| C/2004 B10 | C/SOHO | 2004 Jan 30 | 2004 Jun 17 | M10 | 2004 Jun 17 | M10 | Disc by Hoenig |
| C/2004 C3 | C/SOHO | 2004 Feb 3 | 2004 Jun 18 | M13 | 2004 Jun 18 | M13 | Disc by Kracht |
| C/2004 C4 | C/SOHO | 2004 Feb 8 | 2004 Jun 18 | M13 | 2004 Jun 18 | M13 | Disc by Zhou |
| C/2004 C5 | C/SOHO | 2004 Feb 8 | 2004 Jun 18 | M13 | 2004 Jun 18 | M13 | Disc by Hoffman |
| C/2004 C6 | C/SOHO | 2004 Feb 10 | 2004 Jun 18 | M13 | 2004 Jun 18 | M13 | Disc by Hoffman |
| C/2004 C7 | C/SOHO | 2004 Feb 13 | 2004 Jun 18 | M13 | 2004 Jun 18 | M13 | Disc by Kracht |
| C/2004 C8 | C/SOHO | 2004 Feb 14 | 2004 Jun 18 | M13 | 2004 Jun 18 | M13 | Disc by Chen |
| C/2004 D2 | C/SOHO | 2004 Feb 25 | 2004 Jun 18 | M14 | 2004 Jun 18 | M14 | Disc by Hoffman |
| C/2004 D3 | C/SOHO | 2004 Feb 25 | 2004 Jun 18 | M14 | 2004 Jun 18 | M14 | Disc by Zhou |
| C/2004 D4 | C/SOHO | 2004 Feb 26 | 2004 Jun 18 | M14 | 2004 Jun 18 | M14 | Disc by Sachs |
| C/2004 E1 | C/SOHO | 2004 Mar 9 | 2004 Jun 23 | M42 | 2004 Jun 23 | M42 | Disc by Cernis |
| C/2004 E2 | C/SOHO | 2004 Mar 12 | 2004 Jun 23 | M42 | 2004 Jun 23 | M42 | Disc by Kracht |
| C/2004 E3 | C/SOHO | 2004 Mar 14 | 2004 Jun 23 | M42 | 2004 Jun 23 | M42 | Disc by Kracht |
| C/2004 E4 | C/SOHO | 2004 Mar 15 | 2004 Jun 23 | M42 | 2004 Jun 23 | M42 | Disc by Hoenig |
| C/2004 F5 | C/SOHO | 2004 Mar 17 | 2004 Jun 23 | M43 | 2004 Jun 23 | M43 | Disc by Kracht |
| C/2004 F6 | C/SOHO | 2004 Mar 22 | 2004 Jun 23 | M43 | 2004 Jun 23 | M43 | Disc by Hoenig |
| C/2004 F7 | C/SOHO | 2004 Mar 26 | 2004 Jun 23 | M43 | 2004 Jun 23 | M43 | Disc by Zhou |
| C/2004 G3 | C/SOHO | 2004 Apr 2 | 2004 Jun 29 | M65 | 2004 Jun 29 | M65 | Disc by Zhou |
| C/2004 G4 | C/SOHO | 2004 Apr 3 | 2004 Jun 29 | M65 | 2004 Jun 29 | M65 | Disc by Zhou |
| C/2004 G5 | C/SOHO | 2004 Apr 10 | 2004 Jun 29 | M65 | 2004 Jun 29 | M65 | Disc by Hoffman |
| C/2004 G6 | C/SOHO | 2004 Apr 11 | 2004 Jun 29 | M65 | 2004 Jun 29 | M65 | Disc by Kracht |
| C/2004 G7 | C/SOHO | 2004 Apr 13 | 2004 Jun 29 | M65 | 2004 Jun 29 | M65 | Disc by Sachs |
| C/2004 G8 | C/SOHO | 2004 Apr 13 | 2004 Jun 29 | M65 | 2004 Jun 29 | M65 | Disc by Sachs |
| C/2004 G9 | C/SOHO | 2004 Apr 15 | 2004 Jun 29 | M65 | 2004 Jun 29 | M65 | Disc by Sachs |
| C/2004 H7 | C/SOHO | 2004 Apr 18 | 2004 Jun 29 | M66 | 2004 Jun 29 | M66 | Disc by Kracht |
| C/2004 H8 | C/SOHO | 2004 Apr 19 | 2004 Jun 29 | M66 | 2004 Jun 29 | M66 | Disc by Hoffman |
| C/2004 H9 | C/SOHO | 2004 Apr 19 | 2004 Jun 29 | M66 | 2004 Jun 29 | M66 | Disc by Boschat |
| C/2004 H10 | C/SOHO | 2004 Apr 30 | 2004 Jun 29 | M66 | 2004 Jun 29 | M66 | Disc by Zhou |
| C/2004 J1 | C/SOHO | 2004 May 2 | 2004 Jun 30 | M71 | 2004 Jun 30 | M71 | Disc by Hoffman |
| C/2004 J2 | C/SOHO | 2004 May 4 | 2004 Jun 30 | M71 | 2004 Jun 30 | M71 | Disc by Boschat |
| C/2004 J3 | C/SOHO | 2004 May 4 | 2004 Jun 30 | M71 | 2004 Jun 30 | M71 | Disc by Leprette |
| C/2004 J4 | C/SOHO | 2004 May 5 | 2004 Jun 30 | M71 | 2004 Jun 30 | M71 | Disc by Kracht |
| C/2004 J5 | C/SOHO | 2004 May 6 | 2004 Jun 30 | M71 | 2004 Jun 30 | M71 | Disc by Zhou & Hoffman |
| C/2004 J6 | C/SOHO | 2004 May 7 | 2004 Jun 30 | M71 | 2004 Jun 30 | M71 | Disc by Hoffman |
| C/2004 J7 | C/SOHO | 2004 May 8 | 2004 Jun 30 | M71 | 2004 Jun 30 | M71 | Disc by Zhou |
| C/2004 J8 | C/SOHO | 2004 May 10 | 2004 Jun 30 | M72 | 2004 Jun 30 | M72 | Disc by Boschat |
| C/2004 J9 | C/SOHO | 2004 May 10 | 2004 Jun 30 | M72 | 2004 Jun 30 | M72 | Disc by Kracht |
| C/2004 J10 | C/SOHO | 2004 May 11 | 2004 Jun 30 | M72 | 2004 Jun 30 | M72 | Disc by Hoenig |
| C/2004 J11 | C/SOHO | 2004 May 12 | 2004 Jun 30 | M72 | 2004 Jun 30 | M72 | Disc by Kracht |
| C/2004 J12 | C/SOHO | 2004 May 12 | 2004 Jul 1 | N4 | 2004 Jul 1 | N4 | Disc by Kracht |
| C/2004 J13 | C/SOHO | 2004 May 13 | 2004 Jul 1 | N4 | 2004 Jul 1 | N4 | Disc by Kracht |
| C/2004 J14 | C/SOHO | 2004 May 14 | 2004 Jul 1 | N4 | 2004 Jul 1 | N4 | Disc by Hoffman |
| C/2004 J15 | C/SOHO | 2004 May 14 | 2004 Jul 1 | N5 | 2004 Jul 1 | N5 | Disc by Kracht |
| C/2004 J16 | C/SOHO | 2004 May 14 | 2004 Jul 1 | N5 | 2004 Jul 1 | N5 | Disc by Hoffman |
| C/2004 J17 | C/SOHO | 2004 May 15 | 2004 Jul 1 | N5 | 2004 Jul 1 | N5 | Disc by Kracht |
| C/2004 J18 | C/SOHO | 2004 May 15 | 2004 Jul 1 | N5 | 2004 Jul 1 | N5 | Disc by Kracht |
| C/2004 J19 | C/SOHO | 2004 May 14 | 2004 Jul 2 | N16 | 2004 Jul 1 | N16 | Disc by Evans |
| C/2004 K4 | C/SOHO | 2004 May 18 | 2004 Jul 2 | N16 | 2004 Jul 1 | N16 | Disc by Kracht |
| C/2004 K5 | C/SOHO | 2004 May 20 | 2004 Jul 2 | N16 | 2004 Jul 1 | N16 | Disc by Zhou |
| C/2004 K6 | C/SOHO | 2004 May 21 | 2004 Jul 2 | N16 | 2004 Jul 1 | N16 | Disc by Boschat |
| C/2004 K7 | C/SOHO | 2004 May 23 | 2004 Jul 2 | N16 | 2004 Jul 1 | N16 | Disc by Chen |
| C/2004 K8 | C/SOHO | 2004 May 24 | 2004 Jul 2 | N16 | 2004 Jul 1 | N16 | Disc by Meyer |
| C/2004 K9 | C/SOHO | 2004 May 24 | 2004 Jul 2 | N17 | 2004 Jul 2 | N17 | Disc by Bezugly |
| C/2004 K10 | C/SOHO | 2004 May 25 | 2004 Jul 2 | N17 | 2004 Jul 2 | N17 | Disc by Meyer |
| C/2004 K11 | C/SOHO | 2004 May 27 | 2004 Jul 2 | N17 | 2004 Jul 2 | N17 | Disc by Zhou |
| C/2004 K12 | C/SOHO | 2004 May 30 | 2004 Jul 2 | N17 | 2004 Jul 2 | N17 | Disc by Kracht |
| C/2004 L3 | C/SOHO | 2004 Jun 5 | 2004 Jul 16 | O4 | 2004 Jul 16 | O4 | Disc by Kracht |
| C/2004 L4 | C/SOHO | 2004 Jun 7 | 2004 Jul 16 | O4 | 2004 Jul 16 | O4 | Disc by Zhou |
| C/2004 L5 | C/SOHO | 2004 Jun 8 | 2004 Jul 16 | O4 | 2004 Jul 16 | O4 | Disc by B. Zhou |
| C/2004 L6 | C/SOHO | 2004 Jun 9 | 2004 Jul 16 | O4 | 2004 Jul 16 | O4 | Disc by Zhou |
| C/2004 L7 | C/SOHO | 2004 Jun 9 | 2004 Jul 16 | O4 | 2004 Jul 16 | O4 | Disc by Kracht |
| C/2004 L8 | C/SOHO | 2004 Jun 10 | 2004 Jul 16 | O5 | 2004 Jul 16 | O5 | Disc by Cernis |
| C/2004 L9 | C/SOHO | 2004 Jun 10 | 2004 Jul 16 | O5 | 2004 Jul 16 | O5 | Disc by Zhou |
| C/2004 L10 | C/SOHO | 2004 Jun 13 | 2004 Jul 16 | O5 | 2004 Jul 16 | O5 | Disc by Kracht |
| C/2004 L11 | C/SOHO | 2004 Jun 15 | 2004 Aug 3 | P12 | 2004 Aug 3 | P12 | Disc by Hoffman |
| C/2004 M1 | C/SOHO | 2004 Jun 18 | 2004 Aug 3 | P12 | 2004 Aug 3 | P12 | Disc by Kracht |
| C/2004 M2 | C/SOHO | 2004 Jun 24 | 2004 Aug 3 | P12 | 2004 Aug 3 | P12 | Disc by Sachs |
| C/2004 M3 | C/SOHO | 2004 Jun 26 | 2004 Aug 3 | P12 | 2004 Aug 3 | P12 | Disc by Chen |
| C/2004 M4 | C/SOHO | 2004 Jun 26 | 2004 Aug 3 | P13 | 2004 Aug 3 | P13 | Disc by Hoffman |
| C/2004 M5 | C/SOHO | 2004 Jun 27 | 2004 Aug 3 | P13 | 2004 Aug 3 | P13 | Disc by Hoffman |
| C/2004 M6 | C/SOHO | 2004 Jun 27 | 2004 Aug 3 | P13 | 2004 Aug 3 | P13 | Disc by Leprette |
| C/2004 M7 | C/SOHO | 2004 Jun 27 | 2004 Aug 3 | P13 | 2004 Aug 3 | P13 | Disc by Hoffman |
| C/1996 L2 | C/SOHO | 1996 Jun 13 | 2004 Aug 4 | P15 | 2004 Aug 4 | P15 | Disc by Leprette |
| C/1996 M3 | C/SOHO | 1996 Jun 20 | 2004 Aug 4 | P15 | 2004 Aug 4 | P15 | Disc by Leprette |
| C/2004 N1 | C/SOHO | 2004 Jul 1 | 2004 Aug 6 | P19 | 2004 Aug 6 | P19 | Disc by Zhou |
| C/2004 N2 | C/SOHO | 2004 Jul 1 | 2004 Aug 6 | P19 | 2004 Aug 6 | P19 | Disc by Sachs |
| C/2004 N3 | C/SOHO | 2004 Jul 5 | 2004 Aug 6 | P19 | 2004 Aug 6 | P19 | Disc by Sachs |
| C/2004 N4 | C/SOHO | 2004 Jul 7 | 2004 Aug 6 | P19 | 2004 Aug 6 | P19 | Disc by Zhou |
| C/2004 N5 | C/SOHO | 2004 Jul 8 | 2004 Aug 6 | P19 | 2004 Aug 6 | P19 | Disc by Leprette |
| C/2004 P1 | C/NEAT | 2004 Aug 5 | 2004 Aug 8 | 8383 | 2004 Aug 8 | 8383 | Disc by NEAT project |
| C/2004 N6 | C/SOHO | 2004 Jul 9 | 2004 Aug 9 | P31 | 2004 Aug 9 | P31 | Disc by Zhou |
| C/2002 K11 | C/SOHO | 2002 May 26 | 2004 Aug 17 | Q11 | 2004 Aug 17 | Q11 | Disc by Evans |
| C/2004 O1 | C/SOHO | 2004 Jul 16 | 2004 Aug 17 | Q11 | 2004 Aug 17 | Q11 | Disc by Zhou |
| C/2004 O2 | C/SOHO | 2004 Jul 17 | 2004 Aug 17 | Q11 | 2004 Aug 17 | Q11 | Disc by Zhou |
| C/2004 O3 | C/SOHO | 2004 Jul 26 | 2004 Aug 17 | Q11 | 2004 Aug 17 | Q11 | Disc by Zhou |
| C/2004 Q1 | C/Tucker | 2004 Aug 23 | 2004 Aug 25 | 8393 | 2004 Aug 25 | 8393 | |
| C/2004 Q2 | C/Machholz | 2004 Aug 27 | 2004 Aug 27 | 8394 | 2004 Aug 27 | 8394 | |
| C/2004 P2 | C/SOHO | 2004 Aug 4 | 2004 Sep 1 | R2 | 2004 Sep 1 | R2 | Disc by Evans |
| C/2004 P3 | C/SOHO | 2004 Aug 5 | 2004 Sep 1 | R2 | 2004 Sep 1 | R2 | Disc by Sachs |
| C/2004 P4 | C/SOHO | 2004 Aug 6 | 2004 Sep 1 | R2 | 2004 Sep 1 | R2 | Disc by Leprette |
| C/2004 P5 | C/SOHO | 2004 Aug 8 | 2004 Sep 1 | R2 | 2004 Sep 1 | R2 | Disc by Su |
| C/2004 R1 | C/McNaught | 2004 Sep 2 | 2004 Sep 4 | 8398 | 2004 Sep 4 | 8398 | |
| C/2004 R2 | C/ASAS | 2004 Sep 3 | 2004 Sep 9 | 8402 | 2004 Sep 9 | 8402 | |
| P/2004 R3 | P/LINEAR-NEAT | 2004 Sep 10 | 2004 Sep 16 | S2 | 2004 Sep 16 | S2 | Disc by LINEAR and NEAT |
| P/2004 NL21 | P/LINEAR | 2004 Jul 15 | 2004 Sep 18 | S17 | 2004 Sep 18 | S17 | Asteroidal; coma disc by McNaught |
| C/2004 S1 | C/Van Ness | 2004 Sep 26 | 2004 Sep 28 | 8412 | 2004 Sep 28 | 8412 | |
| P/2004 T1 | P/LINEAR-NEAT | 2004 Oct 5 | 2004 Oct 6 | 8416 | 2004 Oct 6 | 8416 | Disc by LINEAR and NEAT |
| C/2004 P6 | C/SOHO | 2004 Aug 13 | 2004 Oct 13 | T66 | 2004 Oct 13 | T66 | Disc by Danaher |
| C/2004 P7 | C/SOHO | 2004 Aug 15 | 2004 Oct 13 | T66 | 2004 Oct 13 | T66 | Disc by Hoffman |
| C/2004 Q3 | C/SOHO | 2004 Aug 19 | 2004 Oct 13 | T66 | 2004 Oct 13 | T66 | Disc by Hoffman |
| C/2004 Q4 | C/SOHO | 2004 Aug 20 | 2004 Oct 13 | T66 | 2004 Oct 13 | T66 | Disc by Sachs |
| C/2004 Q5 | C/SOHO | 2004 Aug 25 | 2004 Oct 13 | T66 | 2004 Oct 13 | T66 | Disc by Leprette |
| C/2004 Q6 | C/SOHO | 2004 Aug 26 | 2004 Oct 13 | T66 | 2004 Oct 13 | T66 | Disc by Hoffman |
| C/2004 R4 | C/SOHO | 2004 Sep 4 | 2004 Oct 13 | T67 | 2004 Oct 13 | T67 | Disc by Su |
| C/2004 R5 | C/SOHO | 2004 Sep 4 | 2004 Oct 13 | T67 | 2004 Oct 13 | T67 | Disc by Sachs |
| C/2004 R6 | C/SOHO | 2004 Sep 5 | 2004 Oct 13 | T67 | 2004 Oct 13 | T67 | Disc by Su |
| C/2004 R7 | C/SOHO | 2004 Sep 5 | 2004 Oct 13 | T67 | 2004 Oct 13 | T67 | Disc by Battams |
| C/2004 T2 | C/SOHO | 2004 Oct 8 | 2004 Oct 15 | T76 | 2004 Oct 15 | T76 | Disc by Kracht |
| C/2004 T3 | C/Siding Spring | 2004 Oct 12 | 2004 Oct 21 | 8421 | 2004 Oct 21 | 8421 | Disc by McNaught |
| C/2004 U1 | C/LINEAR | 2004 Oct 19 | 2004 Oct 21 | 8421 | 2004 Oct 21 | 8421 | Asteroidal; Coma disc by Knoefel |
| C/2004 U2 | C/SOHO | 2004 Oct 16 | 2004 Oct 21 | U26 | 2004 Oct 21 | U26 | Disc by Otterstedt |
| C/2004 S2 | C/SOHO | 2004 Sep 20 | 2004 Nov 1 | V5 | 2004 Nov 1 | V5 | Disc by Battams |
| C/2004 S3 | C/SOHO | 2004 Sep 22 | 2004 Nov 1 | V5 | 2004 Nov 1 | V5 | Disc by Tsai |
| C/2004 S4 | C/SOHO | 2004 Sep 28 | 2004 Nov 1 | V5 | 2004 Nov 1 | V5 | Disc by Su |
| C/2004 T4 | C/SOHO | 2004 Oct 4 | 2004 Nov 1 | V5 | 2004 Nov 1 | V5 | Disc by Su |
| C/2004 T5 | C/SOHO | 2004 Oct 5 | 2004 Nov 1 | V5 | 2004 Nov 1 | V5 | Disc by Kracht |
| C/2004 U3 | C/SOHO | 2004 Oct 18 | 2004 Nov 1 | V5 | 2004 Nov 1 | V5 | Disc by Battams |
| P/2004 V1 | P/Skiff | 2004 Nov 4 | 2004 Nov 4 | 8426 | 2004 Nov 4 | 8426 | |
| C/2004 V3 | C/Siding Spring | 2004 Nov 3 | 2004 Nov 6 | 8429 | 2004 Nov 6 | 8429 | Disc by Garradd |
| P/2004 V5-A | P/LINEAR-Hill | 2003 Dec 17 | 2004 Nov 10 | 8433 | 2004 Nov 15 | 8438 | Disc as asteroid by LINEAR, coma by Hill |
| P/2004 V5-B | P/LINEAR-Hill | 2003 Nov 10 | 2004 Nov 10 | 8433 | 2004 Nov 15 | 8438 | Disc as asteroid by LINEAR, coma by Hill |
| P/2004 TU12 | P/Siding Spring | 2004 Oct 10 | 2004 Nov 12 | 8436 | 2004 Nov 12 | 8436 | Asteroidal; Tail disc by Mallia, Masi, and Wilcox |
| P/2004 A1 | P/LONEOS | 2004 Jan 13 | 2004 Jan 13 | 8267 | 2004 Nov 6 | 8430 | Disc by Skiff |
| C/2003 A1 | C/LINEAR | 2003 Jan 5 | 2003 Jan 8 | 8044 | 2004 Nov 6 | 8430 | Asteroidal; Coma disc by mult obs from NEO Conf Page |
| C/1996 R3 | C/Lagerkvist | 1996 Sep 12 | 1997 Feb 21 | 6564 | 2004 Nov 6 | 8430 | |
| C/2004 RG113 | C/LINEAR | 2004 Sep 6 | 2004 Nov 23 | 8444 | 2004 Nov 23 | 8444 | Disc as asteroid by LINEAR; Tail disc by LINEAR |
| C/2004 T6 | C/SOHO | 2004 Oct 10 | 2004 Dec 7 | X23 | 2004 Dec 7 | X23 | Disc by Su |
| C/2004 T7 | C/SOHO | 2004 Oct 13 | 2004 Dec 7 | X23 | 2004 Dec 7 | X23 | Disc by Hoffman |
| C/2004 U4 | C/SOHO | 2004 Oct 17 | 2004 Dec 7 | X23 | 2004 Dec 7 | X23 | Disc by Zhou |
| C/2004 U5 | C/SOHO | 2004 Oct 21 | 2004 Dec 7 | X23 | 2004 Dec 7 | X23 | Disc by Otterstedt |
| C/2004 U6 | C/SOHO | 2004 Oct 21 | 2004 Dec 7 | X23 | 2004 Dec 7 | X23 | Disc by Kracht |
| C/2004 U7 | C/SOHO | 2004 Oct 22 | 2004 Dec 7 | X23 | 2004 Dec 7 | X23 | Disc by Gao |
| C/2004 U8 | C/SOHO | 2004 Oct 23 | 2004 Dec 7 | X24 | 2004 Dec 7 | X24 | Disc by Leprette |
| C/2004 U9 | C/SOHO | 2004 Oct 24 | 2004 Dec 7 | X24 | 2004 Dec 7 | X24 | Disc by Hoffman |
| C/2004 U10 | C/SOHO | 2004 Oct 26 | 2004 Dec 7 | X24 | 2004 Dec 7 | X24 | Disc by Sachs |
| C/2004 U11 | C/SOHO | 2004 Oct 26 | 2004 Dec 7 | X24 | 2004 Dec 7 | X24 | Disc by Su |
| C/2004 U12 | C/SOHO | 2004 Oct 28 | 2004 Dec 7 | X24 | 2004 Dec 7 | X24 | Disc by Zhou |
| P/2004 WR9 | P/LINEAR | 2004 Nov 22 | 2004 Dec 8 | 8448 | 2004 Dec 8 | 8448 | Asteroidal; Coma disc by Birtwhistle |
| C/2004 X1 | C/LINEAR | 2004 Dec 7 | 2004 Dec 9 | 8449 | 2004 Dec 9 | 8449 | Asteroidal; Coma disc by mult obs from NEO Conf Page |
| C/2004 X2 | C/LINEAR | 2004 Dec 8 | 2004 Dec 10 | 8450 | 2004 Dec 10 | 8450 | Asteroidal; Coma disc by mult obs from NEO Conf Page |
| P/2004 VR8 | P/LONEOS | 2004 Nov 3 | 2004 Dec 10 | 8451 | 2004 Dec 10 | 8451 | Asteroidal; Coma disc by Hergenrother |
| C/2004 V6 | C/SOHO | 2004 Nov 4 | 2004 Dec 14 | X72 | 2004 Dec 14 | X72 | Disc by Hoffman |
| C/2004 V7 | C/SOHO | 2004 Nov 4 | 2004 Dec 14 | X72 | 2004 Dec 14 | X72 | Disc by Hoffman |
| C/2004 V8 | C/SOHO | 2004 Nov 7 | 2004 Dec 14 | X72 | 2004 Dec 14 | X72 | Disc by Battams |
| C/2004 V9 | C/SOHO | 2004 Nov 7 | 2004 Dec 14 | X72 | 2004 Dec 14 | X72 | Disc by Otterstedt |
| C/2004 V10 | C/SOHO | 2004 Nov 8 | 2004 Dec 14 | X73 | 2004 Dec 14 | X73 | Disc by Battams |
| C/2004 V11 | C/SOHO | 2004 Nov 8 | 2004 Dec 14 | X74 | 2004 Dec 14 | X74 | Disc by Hoffman |
| C/2004 V12 | C/SOHO | 2004 Nov 10 | 2004 Dec 14 | X74 | 2004 Dec 14 | X74 | Disc by Leprette |
| C/2004 V13 | C/SWAN | 2004 Nov 9 | 2004 Dec 16 | 8455 | 2004 Dec 16 | 8455 | Disc by Mattiazzo |
| C/2004 X3 | C/LINEAR | 2004 Dec 15 | 2004 Dec 21 | 8457 | 2004 Dec 21 | 8457 | Asteroidal; Coma disc by Young |
| C/2004 V14 | C/SOHO | 2004 Nov 14 | 2004 Dec 21 | Y37 | 2004 Dec 21 | Y37 | Disc by Meyer |
| C/2004 V15 | C/SOHO | 2004 Nov 15 | 2004 Dec 21 | Y37 | 2004 Dec 21 | Y37 | Disc by Hoffman |
| C/2004 W1 | C/SOHO | 2004 Nov 16 | 2004 Dec 21 | Y37 | 2004 Dec 21 | Y37 | Disc by Hoffman |
| C/2004 W2 | C/SOHO | 2004 Nov 18 | 2004 Dec 21 | Y37 | 2004 Dec 21 | Y37 | Disc by Scarmato |
| C/2004 W3 | C/SOHO | 2004 Nov 19 | 2004 Dec 21 | Y38 | 2004 Dec 21 | Y38 | Disc by Kracht |
| C/2004 W4 | C/SOHO | 2004 Nov 21 | 2004 Dec 21 | Y38 | 2004 Dec 21 | Y38 | Disc by Zhou |
| C/2004 W5 | C/SOHO | 2004 Nov 22 | 2004 Dec 21 | Y38 | 2004 Dec 21 | Y38 | Disc by Hoenig |
| C/2004 W6 | C/SOHO | 2004 Nov 23 | 2004 Dec 21 | Y38 | 2004 Dec 21 | Y38 | Disc by Leprette |
| 164P/2004 Y1 | P/Christensen | 2004 Dec 21 | 2004 Dec 22 | 8548 | 2004 Dec 22 | 8548 |