| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 K5 | 1998 07 04.64554 | 00 23 09.28 | +52 33 15.9 | 12.4 | T | 355 |
| C/1998 K5 | 1998 07 04.64716 | 00 23 10.49 | +52 33 13.7 | 355 | ||
| C/1998 K5 | 1998 07 04.64911 | 00 23 11.90 | +52 33 10.4 | 355 | ||
| C/1998 K5 | 1998 07 05.00153 | 00 27 27.27 | +52 23 15.0 | 107 | ||
| C/1998 K5 | 1998 07 05.00332 | 00 27 28.54 | +52 23 12.3 | 107 | ||
| C/1998 K5 | 1998 07 05.00436 | 00 27 29.76 | +52 23 09.6 | 107 | ||
| C/1998 K5 | 1998 07 05.00818 | 00 27 31.99 | +52 23 04.6 | 107 | ||
| C/1998 K5 | 1998 07 05.00878 | 00 27 32.93 | +52 23 02.4 | 107 | ||
| C/1998 K5 | 1998 07 05.01000 | 00 27 33.79 | +52 23 00.6 | 107 | ||
| C/1998 K5 | 1998 07 13.07649 | 01 41 32.57 | +47 45 11.5 | 16.0 | T | 097 |
| C/1998 K5 | 1998 07 13.08191 | 01 41 34.75 | +47 45 00.1 | 16.0 | T | 097 |
| C/1998 K5 | 1998 07 14.05102 | 01 48 04.64 | +47 10 09.1 | 15.0 | T | 097 |
| C/1998 K5 | 1998 07 14.05266 | 01 48 05.25 | +47 10 05.7 | 15.0 | T | 097 |
| C/1998 K5 | 1998 07 18.63519 | 02 14 10.81 | +44 32 06.4 | 12.6 | T | 351 |
| C/1998 K5 | 1998 07 18.63793 | 02 14 11.48 | +44 32 02.2 | 351 | ||
| C/1998 K5 | 1998 07 18.74817 | 02 14 44.06 | +44 28 34.4 | 900 | ||
| C/1998 K5 | 1998 07 18.75734 | 02 14 46.65 | +44 28 17.0 | 12.2 | T | 900 |
| C/1998 K5 | 1998 07 25.00358 | 02 41 20.93 | +41 17 32.1 | 118 | ||
| C/1998 K5 | 1998 07 25.00860 | 02 41 22.02 | +41 17 24.0 | 12.2 | T | 118 |
| C/1998 K5 | 1998 08 01.33056 | 03 04 23.46 | +38 08 08.4 | 12.7 | T | 292 |