| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 J1 | 1998 05 28.38909 | 06 09 25.03 | -10 10 44.0 | 9.7 | N | 426 |
| C/1998 J1 | 1998 05 28.39800 | 06 09 27.95 | -10 11 34.4 | 9.8 | N | 426 |
| C/1998 J1 | 1998 05 28.89796 | 06 12 12.78 | -10 58 40.0 | 7.7 | T | 860 |
| C/1998 J1 | 1998 05 28.90111 | 06 12 13.90 | -10 58 57.7 | 7.8 | T | 860 |
| C/1998 J1 | 1998 05 28.90602 | 06 12 15.45 | -10 59 25.8 | 7.1 | T | 860 |
| C/1998 J1 | 1998 05 28.91065 | 06 12 17.02 | -10 59 50.4 | 7.0 | T | 860 |
| C/1998 J1 | 1998 05 28.91130 | 06 12 17.02 | -10 59 50.0 | 834 | ||
| C/1998 J1 | 1998 05 28.91414 | 06 12 18.16 | -11 00 10.8 | 8.0 | T | 860 |
| C/1998 J1 | 1998 05 28.92203 | 06 12 20.77 | -11 00 55.6 | 8.0 | T | 860 |
| C/1998 J1 | 1998 05 28.93575 | 06 12 25.07 | -11 02 05.5 | 834 | ||
| C/1998 J1 | 1998 05 29.33345 | 06 14 34.42 | -11 38 49.3 | 7.0 | T | 428 |
| C/1998 J1 | 1998 05 29.34657 | 06 14 38.64 | -11 40 01.0 | 6.9 | T | 428 |
| C/1998 J1 | 1998 05 29.37592 | 06 14 48.11 | -11 42 41.8 | 11.3 | N | 422 |
| C/1998 J1 | 1998 05 29.37664 | 06 14 48.36 | -11 42 45.8 | 11.4 | N | 422 |
| C/1998 J1 | 1998 05 29.37736 | 06 14 48.64 | -11 42 49.5 | 11.3 | N | 422 |
| C/1998 J1 | 1998 05 29.37807 | 06 14 48.81 | -11 42 53.9 | 11.3 | N | 422 |
| C/1998 J1 | 1998 05 30.36816 | 06 20 05.04 | -13 11 28.3 | 12.5 | N | 422 |
| C/1998 J1 | 1998 05 30.36903 | 06 20 05.34 | -13 11 32.9 | 12.7 | N | 422 |
| C/1998 J1 | 1998 05 30.36991 | 06 20 05.60 | -13 11 37.4 | 12.7 | N | 422 |
| C/1998 J1 | 1998 05 30.37079 | 06 20 05.89 | -13 11 42.1 | 12.6 | N | 422 |