| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 W3 | 1998 11 25.29950 | 08 46 07.70 | +29 49 30.4 | 18.4 | N | 704 |
| C/1998 W3 | 1998 11 25.31005 | 08 46 07.36 | +29 49 38.0 | 18.4 | N | 704 |
| C/1998 W3 | 1998 11 25.32060 | 08 46 06.84 | +29 49 47.1 | 18.1 | N | 704 |
| C/1998 W3 | 1998 11 25.33119 | 08 46 06.42 | +29 49 53.6 | 18.1 | N | 704 |
| C/1998 W3 | 1998 11 25.34174 | 08 46 05.98 | +29 50 01.9 | 18.1 | N | 704 |
| C/1998 W3 | 1998 11 26.36627 | 08 45 24.46 | +30 02 11.7 | 734 | ||
| C/1998 W3 | 1998 11 26.37038 | 08 45 24.16 | +30 02 16.8 | 734 | ||
| C/1998 W3 | 1998 11 26.37848 | 08 45 23.68 | +30 02 23.2 | 734 | ||
| C/1998 W3 | 1998 11 27.42897 | 08 44 39.41 | +30 15 04.9 | 19.0 | N | 747 |
| C/1998 W3 | 1998 11 27.44056 | 08 44 38.81 | +30 15 12.4 | 18.5 | N | 747 |
| C/1998 W3 | 1998 11 27.44281 | 08 44 38.82 | +30 15 13.5 | 19.3 | N | 747 |
| C/1998 W3 | 1998 11 28.04905 | 08 44 12.55 | +30 22 33.1 | 046 | ||
| C/1998 W3 | 1998 11 28.05166 | 08 44 12.43 | +30 22 35.0 | 046 | ||
| C/1998 W3 | 1998 11 28.05347 | 08 44 12.36 | +30 22 36.8 | 046 | ||
| C/1998 W3 | 1998 11 28.05530 | 08 44 12.29 | +30 22 37.8 | 046 | ||
| C/1998 W3 | 1998 11 28.05714 | 08 44 12.22 | +30 22 39.1 | 16.3 | T | 046 |
| C/1998 W3 | 1998 11 28.05899 | 08 44 12.10 | +30 22 40.5 | 046 | ||
| C/1998 W3 | 1998 11 28.68111 | 08 43 44.67 | +30 30 15.9 | 411 | ||
| C/1998 W3 | 1998 11 28.68521 | 08 43 44.43 | +30 30 19.6 | 411 | ||
| C/1998 W3 | 1998 11 28.69341 | 08 43 44.07 | +30 30 25.6 | 411 |