| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 M5 | 1998 07 05.38008 | 23 07 29.42 | +19 32 05.2 | 14.4 | T | 860 |
| C/1998 M5 | 1998 07 05.72411 | 23 07 16.72 | +19 39 07.2 | 13.3 | T | 402 |
| C/1998 M5 | 1998 07 05.72619 | 23 07 16.64 | +19 39 09.7 | 402 | ||
| C/1998 M5 | 1998 07 05.72828 | 23 07 16.56 | +19 39 12.4 | 402 | ||
| C/1998 M5 | 1998 07 06.70573 | 23 06 38.61 | +19 59 26.4 | 13.6 | T | 360 |
| C/1998 M5 | 1998 07 06.70833 | 23 06 38.50 | +19 59 29.8 | 360 | ||
| C/1998 M5 | 1998 07 06.71094 | 23 06 38.39 | +19 59 32.9 | 360 | ||
| C/1998 M5 | 1998 07 11.21536 | 23 03 16.30 | +21 34 41.6 | 14.9 | T | 750 |
| C/1998 M5 | 1998 07 11.22163 | 23 03 15.97 | +21 34 49.2 | 17.6 | T | 750 |
| C/1998 M5 | 1998 07 11.23104 | 23 03 15.53 | +21 35 01.4 | 15.3 | T | 750 |
| C/1998 M5 | 1998 07 17.21640 | 22 57 31.90 | +23 45 59.7 | 15.5 | T | 750 |
| C/1998 M5 | 1998 07 17.21810 | 22 57 31.78 | +23 46 02.1 | 15.5 | T | 750 |
| C/1998 M5 | 1998 07 17.21891 | 22 57 31.73 | +23 46 02.8 | 15.7 | T | 750 |
| C/1998 M5 | 1998 07 17.68010 | 22 57 01.32 | +23 56 20.6 | 12.9 | T | 897 |
| C/1998 M5 | 1998 07 17.68569 | 22 57 00.91 | +23 56 28.4 | 897 | ||
| C/1998 M5 | 1998 07 18.25955 | 22 56 22.40 | +24 09 17.1 | 16.1 | T | 750 |
| C/1998 M5 | 1998 07 18.27200 | 22 56 21.55 | +24 09 33.9 | 16.2 | T | 750 |
| C/1998 M5 | 1998 07 18.55534 | 22 56 02.17 | +24 15 53.9 | 13.8 | T | 351 |
| C/1998 M5 | 1998 07 18.56889 | 22 56 01.30 | +24 16 13.3 | 351 | ||
| C/1998 M5 | 1998 07 18.57447 | 22 56 00.92 | +24 16 20.7 | 351 |