| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 J1 | 1998 07 02.37072 | 08 32 36.52 | -40 00 18.6 | 14.7 | N | 422 |
| C/1998 J1 | 1998 07 02.93025 | 08 34 26.02 | -40 15 04.8 | 10.6 | T | 860 |
| C/1998 J1 | 1998 07 02.94838 | 08 34 29.52 | -40 15 33.1 | 11.0 | T | 860 |
| C/1998 J1 | 1998 07 04.94366 | 08 40 55.33 | -41 06 33.5 | 10.4 | T | 860 |
| C/1998 J1 | 1998 07 04.96418 | 08 40 59.37 | -41 07 04.4 | 10.8 | T | 860 |
| C/1998 J1 | 1998 07 07.91419 | 08 50 18.45 | -42 18 04.3 | 834 | ||
| C/1998 J1 | 1998 07 08.93189 | 08 53 28.48 | -42 41 28.6 | 834 | ||
| C/1998 J1 | 1998 07 09.92805 | 08 56 33.08 | -43 03 53.0 | 834 | ||
| C/1998 J1 | 1998 07 10.38058 | 08 57 56.55 | -43 13 54.5 | 13.9 | N | 426 |
| C/1998 J1 | 1998 07 10.38862 | 08 57 58.01 | -43 14 04.8 | 13.9 | N | 426 |
| C/1998 J1 | 1998 07 10.39559 | 08 57 59.30 | -43 14 13.9 | 13.9 | N | 426 |
| C/1998 J1 | 1998 07 10.93686 | 08 59 38.81 | -43 26 04.9 | 834 | ||
| C/1998 J1 | 1998 07 12.97946 | 09 05 50.98 | -44 09 40.6 | 13.3 | T | 844 |
| C/1998 J1 | 1998 07 12.99819 | 09 05 54.23 | -44 10 03.4 | 844 | ||
| C/1998 J1 | 1998 07 13.93289 | 09 08 43.00 | -44 29 26.3 | 834 | ||
| C/1998 J1 | 1998 07 19.36511 | 09 24 44.24 | -46 15 34.3 | 16.2 | N | 422 |
| C/1998 J1 | 1998 07 19.36560 | 09 24 44.35 | -46 15 34.7 | 16.1 | N | 422 |
| C/1998 J1 | 1998 07 19.36624 | 09 24 44.46 | -46 15 35.6 | 16.5 | N | 422 |
| C/1998 J1 | 1998 07 19.36690 | 09 24 44.57 | -46 15 36.5 | 16.1 | N | 422 |
| C/1998 J1 | 1998 07 19.93645 | 09 26 23.70 | -46 26 11.1 | 834 |