| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 T1 | 1998 10 16.91795 | 01 23 04.47 | +20 31 23.7 | 15.7 | T | 504 |
| C/1998 T1 | 1998 10 16.91927 | 01 23 04.31 | +20 31 22.4 | 15.7 | T | 504 |
| C/1998 T1 | 1998 10 16.93708 | 01 23 01.79 | +20 31 08.0 | 118 | ||
| C/1998 T1 | 1998 10 16.94149 | 01 23 01.20 | +20 31 04.4 | 118 | ||
| C/1998 T1 | 1998 10 16.94314 | 01 23 01.01 | +20 31 03.8 | 16.0 | T | 118 |
| C/1998 T1 | 1998 10 18.19957 | 01 20 08.24 | +20 14 00.5 | 17.8 | T | 704 |
| C/1998 T1 | 1998 10 18.21969 | 01 20 05.46 | +20 13 43.6 | 704 | ||
| C/1998 T1 | 1998 10 18.23978 | 01 20 02.63 | +20 13 26.8 | 18.2 | T | 704 |
| C/1998 T1 | 1998 10 18.25988 | 01 19 59.85 | +20 13 10.9 | 704 | ||
| C/1998 T1 | 1998 10 18.28087 | 01 19 56.97 | +20 12 52.9 | 704 | ||
| C/1998 T1 | 1998 10 18.54005 | 01 19 21.22 | +20 09 18.0 | 15.7 | T | 367 |
| C/1998 T1 | 1998 10 18.54352 | 01 19 20.74 | +20 09 15.1 | 367 | ||
| C/1998 T1 | 1998 10 18.54699 | 01 19 20.23 | +20 09 11.8 | 367 | ||
| C/1998 T1 | 1998 10 18.59393 | 01 19 13.59 | +20 08 33.6 | 16.7 | T | 372 |
| C/1998 T1 | 1998 10 18.59851 | 01 19 13.04 | +20 08 29.6 | 16.0 | T | 900 |
| C/1998 T1 | 1998 10 18.61114 | 01 19 11.26 | +20 08 19.1 | 900 | ||
| C/1998 T1 | 1998 10 18.62162 | 01 19 09.79 | +20 08 10.3 | 16.0 | T | 355 |
| C/1998 T1 | 1998 10 18.62557 | 01 19 09.25 | +20 08 07.0 | 355 | ||
| C/1998 T1 | 1998 10 18.63177 | 01 19 08.39 | +20 08 01.6 | 355 | ||
| C/1998 T1 | 1998 10 19.02838 | 01 18 13.53 | +20 02 30.8 | 17.8 | T | 739 |