| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 W3 | 1999 02 16.93572 | 06 49 42.91 | +44 06 16.8 | 16.9 | T | 071 |
| C/1998 W3 | 1999 02 16.93881 | 06 49 42.51 | +44 06 17.3 | 17.0 | T | 071 |
| C/1998 W3 | 1999 02 16.94072 | 06 49 42.50 | +44 06 18.8 | 16.9 | T | 071 |
| C/1998 W3 | 1999 02 16.94263 | 06 49 42.32 | +44 06 18.5 | 17.0 | T | 071 |
| C/1998 W3 | 1999 02 16.94454 | 06 49 42.15 | +44 06 19.3 | 17.0 | T | 071 |
| C/1998 W3 | 1999 02 19.49272 | 06 46 18.03 | +44 15 08.2 | 17.8 | T | 402 |
| C/1998 W3 | 1999 02 19.49397 | 06 46 17.96 | +44 15 08.4 | 402 | ||
| C/1998 W3 | 1999 02 19.49523 | 06 46 17.85 | +44 15 08.3 | 402 | ||
| C/1998 W3 | 1999 02 22.49411 | 06 42 29.38 | +44 24 18.5 | 17.5 | T | 402 |
| C/1998 W3 | 1999 02 22.49572 | 06 42 29.21 | +44 24 18.7 | 402 | ||
| C/1998 W3 | 1999 02 22.49733 | 06 42 29.08 | +44 24 19.3 | 402 | ||
| C/1998 W3 | 1999 03 03.46253 | 06 32 26.51 | +44 45 00.7 | 17.3 | T | 402 |
| C/1998 W3 | 1999 03 03.46414 | 06 32 26.22 | +44 45 00.2 | 402 | ||
| C/1998 W3 | 1999 03 03.46575 | 06 32 26.23 | +44 45 00.5 | 402 | ||
| C/1998 W3 | 1999 03 08.86000 | 06 27 23.00 | +44 53 39.4 | 118 | ||
| C/1998 W3 | 1999 03 08.86715 | 06 27 22.65 | +44 53 40.3 | 17.0 | T | 118 |
| C/1998 W3 | 1999 03 12.87582 | 06 24 06.39 | +44 58 43.8 | 17.5 | T | 113 |
| C/1998 W3 | 1999 03 12.89475 | 06 24 05.54 | +44 58 45.6 | 17.4 | T | 113 |
| C/1998 W3 | 1999 04 06.46247 | 06 12 25.49 | +45 17 42.3 | 17.9 | T | 402 |
| C/1998 W3 | 1999 04 08.43750 | 06 12 02.90 | +45 19 02.0 | 402 |