| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 W3 | 1998 11 28.78854 | 08 43 39.72 | +30 31 34.6 | 16.8 | T | 900 |
| C/1998 W3 | 1998 11 28.80111 | 08 43 39.16 | +30 31 44.0 | 900 | ||
| C/1998 W3 | 1998 11 29.64918 | 08 43 00.74 | +30 42 07.7 | 16.3 | T | 402 |
| C/1998 W3 | 1998 11 29.65196 | 08 43 00.54 | +30 42 09.7 | 402 | ||
| C/1998 W3 | 1998 11 29.65473 | 08 43 00.42 | +30 42 11.9 | 402 | ||
| C/1998 W3 | 1998 12 03.99252 | 08 39 26.78 | +31 36 25.4 | 097 | ||
| C/1998 W3 | 1998 12 04.00960 | 08 39 25.90 | +31 36 38.9 | 097 | ||
| C/1998 W3 | 1998 12 04.05928 | 08 39 23.35 | +31 37 16.8 | 046 | ||
| C/1998 W3 | 1998 12 04.06052 | 08 39 23.27 | +31 37 17.9 | 046 | ||
| C/1998 W3 | 1998 12 04.06385 | 08 39 23.02 | +31 37 19.6 | 046 | ||
| C/1998 W3 | 1998 12 11.65244 | 08 32 01.46 | +33 15 28.2 | 16.4 | T | 897 |
| C/1998 W3 | 1998 12 11.66657 | 08 32 00.62 | +33 15 38.7 | 897 | ||
| C/1998 W3 | 1998 12 12.81623 | 08 30 46.04 | +33 30 45.6 | 16.2 | T | 402 |
| C/1998 W3 | 1998 12 12.81852 | 08 30 45.90 | +33 30 47.0 | 402 | ||
| C/1998 W3 | 1998 12 12.82080 | 08 30 45.73 | +33 30 48.8 | 402 | ||
| C/1998 W3 | 1998 12 13.62495 | 08 29 52.60 | +33 41 24.7 | 16.8 | T | 355 |
| C/1998 W3 | 1998 12 13.62788 | 08 29 52.43 | +33 41 26.8 | 355 | ||
| C/1998 W3 | 1998 12 13.63434 | 08 29 52.02 | +33 41 31.2 | 355 | ||
| C/1998 W3 | 1998 12 16.08531 | 08 27 03.70 | +34 13 53.9 | 046 | ||
| C/1998 W3 | 1998 12 16.08723 | 08 27 03.55 | +34 13 55.3 | 046 |