| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 K5 | 1998 08 01.34098 | 03 04 25.05 | +38 07 54.3 | 12.6 | T | 292 |
| C/1998 K5 | 1998 08 01.35138 | 03 04 26.64 | +38 07 40.0 | 12.6 | T | 292 |
| C/1998 K5 | 1998 08 04.76285 | 03 13 04.98 | +36 49 54.0 | 12.4 | T | 360 |
| C/1998 K5 | 1998 08 04.76545 | 03 13 05.34 | +36 49 50.7 | 360 | ||
| C/1998 K5 | 1998 08 05.99935 | 03 15 56.59 | +36 22 55.9 | 11.9 | T | 143 |
| C/1998 K5 | 1998 08 06.00485 | 03 15 57.35 | +36 22 49.1 | 12.0 | T | 143 |
| C/1998 K5 | 1998 08 06.01113 | 03 15 58.20 | +36 22 41.4 | 12.0 | T | 143 |
| C/1998 K5 | 1998 08 09.01045 | 03 22 21.83 | +35 20 18.0 | 12.8 | T | 143 |
| C/1998 K5 | 1998 08 09.01280 | 03 22 22.10 | +35 20 15.2 | 12.8 | T | 143 |
| C/1998 K5 | 1998 08 09.01476 | 03 22 22.33 | +35 20 12.7 | 12.9 | T | 143 |
| C/1998 K5 | 1998 08 11.63281 | 03 27 22.00 | +34 28 33.0 | 12.6 | T | 351 |
| C/1998 K5 | 1998 08 11.64765 | 03 27 23.64 | +34 28 18.0 | 351 | ||
| C/1998 K5 | 1998 08 12.09928 | 03 28 11.61 | +34 19 36.3 | 046 | ||
| C/1998 K5 | 1998 08 12.10067 | 03 28 11.75 | +34 19 34.8 | 046 | ||
| C/1998 K5 | 1998 08 12.10171 | 03 28 11.86 | +34 19 33.6 | 046 | ||
| C/1998 K5 | 1998 08 14.37727 | 03 32 02.25 | +33 36 50.6 | 12.5 | N | 758 |
| C/1998 K5 | 1998 08 14.38029 | 03 32 02.54 | +33 36 47.3 | 12.5 | N | 758 |
| C/1998 K5 | 1998 08 14.39900 | 03 32 04.19 | +33 36 26.5 | 12.4 | N | 758 |
| C/1998 K5 | 1998 08 22.75997 | 03 43 01.55 | +31 09 35.1 | 13.1 | T | 402 |
| C/1998 K5 | 1998 08 22.76206 | 03 43 01.66 | +31 09 33.1 | 402 |