| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 M5 | 1998 09 07.82326 | 20 49 22.15 | +39 57 01.3 | 057 | ||
| C/1998 M5 | 1998 09 08.51618 | 20 47 02.64 | +40 01 10.1 | 897 | ||
| C/1998 M5 | 1998 09 08.51810 | 20 47 02.24 | +40 01 10.8 | 12.0 | T | 897 |
| C/1998 M5 | 1998 09 08.52138 | 20 47 01.56 | +40 01 12.2 | 897 | ||
| C/1998 M5 | 1998 09 08.55784 | 20 46 54.18 | +40 01 24.0 | 13.0 | T | 355 |
| C/1998 M5 | 1998 09 08.55902 | 20 46 53.93 | +40 01 24.1 | 355 | ||
| C/1998 M5 | 1998 09 08.56061 | 20 46 53.59 | +40 01 25.2 | 355 | ||
| C/1998 M5 | 1998 09 08.63552 | 20 46 38.40 | +40 01 49.7 | 12.2 | T | 347 |
| C/1998 M5 | 1998 09 08.64140 | 20 46 37.21 | +40 01 51.6 | 12.3 | T | 347 |
| C/1998 M5 | 1998 09 08.64365 | 20 46 36.77 | +40 01 52.1 | 347 | ||
| C/1998 M5 | 1998 09 08.65853 | 20 46 33.73 | +40 01 57.9 | 12.5 | T | 402 |
| C/1998 M5 | 1998 09 08.66028 | 20 46 33.39 | +40 01 58.3 | 402 | ||
| C/1998 M5 | 1998 09 08.66201 | 20 46 33.03 | +40 01 59.0 | 402 | ||
| C/1998 M5 | 1998 09 09.49983 | 20 43 45.09 | +40 06 29.2 | 12.1 | T | 360 |
| C/1998 M5 | 1998 09 09.50243 | 20 43 44.56 | +40 06 30.0 | 360 | ||
| C/1998 M5 | 1998 09 09.53100 | 20 43 38.76 | +40 06 37.8 | 12.6 | T | 352 |
| C/1998 M5 | 1998 09 09.53377 | 20 43 38.21 | +40 06 38.9 | 352 | ||
| C/1998 M5 | 1998 09 09.53655 | 20 43 37.62 | +40 06 39.9 | 352 | ||
| C/1998 M5 | 1998 09 09.77948 | 20 42 49.20 | +40 07 51.8 | 11.0 | T | 610 |
| C/1998 M5 | 1998 09 09.78377 | 20 42 48.33 | +40 07 52.9 | 610 |