| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 M5 | 1998 08 05.97698 | 22 26 08.41 | +31 15 21.1 | 046 | ||
| C/1998 M5 | 1998 08 05.97826 | 22 26 08.23 | +31 15 22.8 | 046 | ||
| C/1998 M5 | 1998 08 05.97935 | 22 26 08.09 | +31 15 24.2 | 046 | ||
| C/1998 M5 | 1998 08 06.11225 | 22 25 51.21 | +31 18 22.2 | 12.8 | N | 758 |
| C/1998 M5 | 1998 08 06.14210 | 22 25 47.27 | +31 19 02.2 | 12.7 | N | 758 |
| C/1998 M5 | 1998 08 06.14468 | 22 25 46.90 | +31 19 05.4 | 12.7 | N | 758 |
| C/1998 M5 | 1998 08 06.88684 | 22 24 10.31 | +31 35 36.4 | 12.7 | T | 540 |
| C/1998 M5 | 1998 08 06.88787 | 22 24 10.13 | +31 35 37.7 | 540 | ||
| C/1998 M5 | 1998 08 06.88899 | 22 24 09.97 | +31 35 39.7 | 540 | ||
| C/1998 M5 | 1998 08 06.89631 | 22 24 09.03 | +31 35 48.8 | 12.8 | T | 628 |
| C/1998 M5 | 1998 08 06.92409 | 22 24 05.32 | +31 36 26.0 | 12.8 | T | 628 |
| C/1998 M5 | 1998 08 06.93450 | 22 24 03.93 | +31 36 39.5 | 12.8 | T | 628 |
| C/1998 M5 | 1998 08 06.94492 | 22 24 02.55 | +31 36 53.1 | 12.8 | T | 628 |
| C/1998 M5 | 1998 08 07.07363 | 22 23 45.40 | +31 39 45.5 | 13.0 | T | 557 |
| C/1998 M5 | 1998 08 07.85541 | 22 22 01.22 | +31 57 01.7 | 12.0 | T | 120 |
| C/1998 M5 | 1998 08 07.85691 | 22 22 01.06 | +31 57 04.2 | 120 | ||
| C/1998 M5 | 1998 08 07.86189 | 22 22 00.34 | +31 57 10.1 | 120 | ||
| C/1998 M5 | 1998 08 07.86507 | 22 21 59.93 | +31 57 14.4 | 120 | ||
| C/1998 M5 | 1998 08 07.94284 | 22 21 49.31 | +31 58 57.5 | 12.7 | T | 628 |
| C/1998 M5 | 1998 08 07.95950 | 22 21 47.05 | +31 59 19.4 | 12.6 | T | 628 |