| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 M5 | 1998 10 01.43257 | 19 39 21.27 | +39 45 21.5 | 12.0 | T | 402 |
| C/1998 M5 | 1998 10 01.43465 | 19 39 20.97 | +39 45 20.8 | 402 | ||
| C/1998 M5 | 1998 10 01.43674 | 19 39 20.67 | +39 45 20.1 | 402 | ||
| C/1998 M5 | 1998 10 01.48925 | 19 39 13.09 | +39 45 03.7 | 900 | ||
| C/1998 M5 | 1998 10 01.49850 | 19 39 11.79 | +39 45 00.0 | 12.3 | T | 900 |
| C/1998 M5 | 1998 10 01.53039 | 19 39 07.11 | +39 44 49.6 | 13.0 | T | 351 |
| C/1998 M5 | 1998 10 01.53287 | 19 39 06.91 | +39 44 48.6 | 351 | ||
| C/1998 M5 | 1998 10 01.53510 | 19 39 06.58 | +39 44 49.3 | 351 | ||
| C/1998 M5 | 1998 10 02.50080 | 19 36 51.68 | +39 39 32.3 | 897 | ||
| C/1998 M5 | 1998 10 02.54918 | 19 36 45.02 | +39 39 15.5 | 12.3 | T | 347 |
| C/1998 M5 | 1998 10 02.55792 | 19 36 43.77 | +39 39 12.0 | 12.3 | T | 347 |
| C/1998 M5 | 1998 10 02.56295 | 19 36 43.07 | +39 39 11.0 | 12.4 | T | 347 |
| C/1998 M5 | 1998 10 02.56611 | 19 36 42.64 | +39 39 09.7 | 12.2 | T | 347 |
| C/1998 M5 | 1998 10 02.58066 | 19 36 40.58 | +39 39 04.5 | 897 | ||
| C/1998 M5 | 1998 10 04.02416 | 19 33 25.97 | +39 30 52.8 | 758 | ||
| C/1998 M5 | 1998 10 04.02773 | 19 33 25.43 | +39 30 51.1 | 13.1 | T | 758 |
| C/1998 M5 | 1998 10 04.03363 | 19 33 24.64 | +39 30 49.6 | 12.9 | T | 758 |
| C/1998 M5 | 1998 10 04.49051 | 19 32 24.42 | +39 28 07.2 | 12.8 | T | 351 |
| C/1998 M5 | 1998 10 04.49269 | 19 32 24.15 | +39 28 06.6 | 351 | ||
| C/1998 M5 | 1998 10 04.49582 | 19 32 23.71 | +39 28 05.7 | 351 |