| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 K5 | 1998 06 25.04459 | 21 50 52.62 | +51 59 59.5 | 046 | ||
| C/1998 K5 | 1998 06 25.04510 | 21 50 53.15 | +52 00 01.0 | 046 | ||
| C/1998 K5 | 1998 06 25.28022 | 21 55 07.73 | +52 11 25.7 | 12.3 | N | 752 |
| C/1998 K5 | 1998 06 25.28183 | 21 55 09.45 | +52 11 30.5 | 12.4 | N | 752 |
| C/1998 K5 | 1998 06 25.28303 | 21 55 10.72 | +52 11 33.8 | 12.5 | N | 752 |
| C/1998 K5 | 1998 06 25.28572 | 21 55 13.60 | +52 11 41.7 | 12.4 | N | 752 |
| C/1998 K5 | 1998 06 25.28758 | 21 55 15.54 | +52 11 47.3 | 12.4 | N | 752 |
| C/1998 K5 | 1998 06 25.95800 | 22 07 19.61 | +52 40 09.2 | 12.8 | N | 620 |
| C/1998 K5 | 1998 06 25.96115 | 22 07 22.94 | +52 40 16.9 | 12.7 | N | 620 |
| C/1998 K5 | 1998 06 25.96402 | 22 07 26.02 | +52 40 24.1 | 12.7 | N | 620 |
| C/1998 K5 | 1998 06 25.97113 | 22 07 33.57 | +52 40 41.5 | 12.7 | N | 620 |
| C/1998 K5 | 1998 06 25.97476 | 22 07 37.46 | +52 40 50.7 | 12.8 | N | 620 |
| C/1998 K5 | 1998 06 26.14635 | 22 10 39.15 | +52 47 31.3 | 13.4 | T | 491 |
| C/1998 K5 | 1998 06 27.01072 | 22 26 07.60 | +53 14 43.2 | 12.7 | N | 620 |
| C/1998 K5 | 1998 06 27.01353 | 22 26 10.46 | +53 14 48.0 | 12.7 | N | 620 |
| C/1998 K5 | 1998 06 27.01535 | 22 26 12.41 | +53 14 50.7 | 12.8 | N | 620 |
| C/1998 K5 | 1998 06 27.01748 | 22 26 14.60 | +53 14 54.9 | 12.7 | N | 620 |
| C/1998 K5 | 1998 06 27.02192 | 22 26 19.25 | +53 15 02.1 | 12.9 | N | 620 |
| C/1998 K5 | 1998 06 27.02204 | 22 26 19.37 | +53 15 03.6 | 620 | ||
| C/1998 K5 | 1998 06 27.94134 | 22 42 29.19 | +53 34 47.3 | 12.5 | T | 504 |