| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 K5 | 1998 06 21.96031 | 20 56 56.70 | +48 30 34.9 | 12.4 | N | 143 |
| C/1998 K5 | 1998 06 21.99010 | 20 57 26.26 | +48 33 11.2 | 12.5 | N | 143 |
| C/1998 K5 | 1998 06 21.99088 | 20 57 27.03 | +48 33 15.2 | 12.5 | N | 143 |
| C/1998 K5 | 1998 06 21.99167 | 20 57 27.80 | +48 33 19.4 | 12.4 | N | 143 |
| C/1998 K5 | 1998 06 22.02149 | 20 57 57.29 | +48 35 53.8 | 12.4 | N | 143 |
| C/1998 K5 | 1998 06 22.02233 | 20 57 58.13 | +48 35 58.3 | 12.4 | N | 143 |
| C/1998 K5 | 1998 06 22.02390 | 20 57 59.69 | +48 36 06.2 | 12.5 | N | 143 |
| C/1998 K5 | 1998 06 22.26538 | 21 02 02.32 | +48 57 02.3 | 12.6 | T | 860 |
| C/1998 K5 | 1998 06 22.27568 | 21 02 12.56 | +48 57 53.7 | 12.8 | T | 860 |
| C/1998 K5 | 1998 06 22.28981 | 21 02 26.59 | +48 59 02.5 | 12.6 | T | 860 |
| C/1998 K5 | 1998 06 23.04521 | 21 15 26.36 | +49 57 00.2 | 13.0 | T | 046 |
| C/1998 K5 | 1998 06 23.04624 | 21 15 27.42 | +49 57 04.8 | 046 | ||
| C/1998 K5 | 1998 06 23.04698 | 21 15 28.18 | +49 57 08.2 | 046 | ||
| C/1998 K5 | 1998 06 23.04811 | 21 15 29.33 | +49 57 13.2 | 046 | ||
| C/1998 K5 | 1998 06 23.29446 | 21 19 47.80 | +50 15 05.2 | 12.6 | N | 752 |
| C/1998 K5 | 1998 06 23.29485 | 21 19 48.22 | +50 15 06.7 | 12.5 | N | 752 |
| C/1998 K5 | 1998 06 23.29590 | 21 19 49.29 | +50 15 11.4 | 12.6 | N | 752 |
| C/1998 K5 | 1998 06 23.29698 | 21 19 50.39 | +50 15 15.9 | 12.5 | N | 752 |
| C/1998 K5 | 1998 06 23.29878 | 21 19 52.26 | +50 15 23.8 | 12.5 | N | 752 |
| C/1998 K5 | 1998 06 23.92204 | 21 30 51.90 | +50 56 33.2 | 504 |