| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 K5 | 1998 06 19.96635 | 20 24 58.70 | +45 19 28.3 | 12.8 | T | 504 |
| C/1998 K5 | 1998 06 19.96700 | 20 24 59.30 | +45 19 32.5 | 12.9 | T | 504 |
| C/1998 K5 | 1998 06 19.96737 | 20 24 59.63 | +45 19 34.7 | 12.9 | T | 504 |
| C/1998 K5 | 1998 06 20.13773 | 20 27 33.25 | +45 37 37.0 | 620 | ||
| C/1998 K5 | 1998 06 20.14016 | 20 27 35.42 | +45 37 52.0 | 620 | ||
| C/1998 K5 | 1998 06 20.14664 | 20 27 41.17 | +45 38 32.6 | 620 | ||
| C/1998 K5 | 1998 06 20.15394 | 20 27 47.77 | +45 39 16.9 | 620 | ||
| C/1998 K5 | 1998 06 20.63116 | 20 35 17.63 | +46 27 43.1 | 12.5 | T | 355 |
| C/1998 K5 | 1998 06 20.63305 | 20 35 19.36 | +46 27 54.8 | 355 | ||
| C/1998 K5 | 1998 06 20.63385 | 20 35 20.11 | +46 27 59.6 | 355 | ||
| C/1998 K5 | 1998 06 20.68758 | 20 36 09.93 | +46 33 21.7 | 12.6 | T | 897 |
| C/1998 K5 | 1998 06 20.69014 | 20 36 12.39 | +46 33 37.3 | 12.6 | T | 897 |
| C/1998 K5 | 1998 06 20.69233 | 20 36 14.34 | +46 33 49.9 | 897 | ||
| C/1998 K5 | 1998 06 20.93682 | 20 40 09.65 | +46 57 23.0 | 14.2 | T | 610 |
| C/1998 K5 | 1998 06 20.94029 | 20 40 12.96 | +46 57 43.5 | 610 | ||
| C/1998 K5 | 1998 06 20.94376 | 20 40 16.26 | +46 58 04.0 | 610 | ||
| C/1998 K5 | 1998 06 20.94723 | 20 40 19.56 | +46 58 24.6 | 610 | ||
| C/1998 K5 | 1998 06 20.95071 | 20 40 22.86 | +46 58 45.1 | 610 | ||
| C/1998 K5 | 1998 06 21.95874 | 20 56 55.15 | +48 30 26.8 | 12.5 | N | 143 |
| C/1998 K5 | 1998 06 21.95952 | 20 56 55.96 | +48 30 30.9 | 12.5 | N | 143 |