| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 J1 | 1998 05 03.69868 | 02 08 57.50 | +19 13 50.0 | 249 | ||
| C/1998 J1 | 1998 05 03.73699 | 02 09 21.80 | +19 17 20.0 | 249 | ||
| C/1998 J1 | 1998 05 03.77939 | 02 09 46.10 | +19 21 28.0 | 249 | ||
| C/1998 J1 | 1998 05 03.82385 | 02 10 10.90 | +19 25 50.0 | 249 | ||
| C/1998 J1 | 1998 05 03.90656 | 02 10 57.30 | +19 33 53.0 | 249 | ||
| C/1998 J1 | 1998 05 03.98626 | 02 11 42.00 | +19 41 50.0 | 249 | ||
| C/1998 J1 | 1998 05 04.02787 | 02 12 05.80 | +19 45 47.0 | 249 | ||
| C/1998 J1 | 1998 05 04.07264 | 02 12 31.40 | +19 50 11.0 | 249 | ||
| C/1998 J1 | 1998 05 04.11438 | 02 12 55.80 | +19 54 15.0 | 249 | ||
| C/1998 J1 | 1998 05 04.15366 | 02 13 18.50 | +19 58 07.0 | 249 | ||
| C/1998 J1 | 1998 05 04.23623 | 02 14 06.70 | +20 06 09.0 | 249 | ||
| C/1998 J1 | 1998 05 04.27868 | 02 14 32.50 | +20 10 13.0 | 249 | ||
| C/1998 J1 | 1998 05 04.32313 | 02 14 58.00 | +20 14 37.0 | 249 | ||
| C/1998 J1 | 1998 05 04.36398 | 02 15 22.80 | +20 18 24.0 | 249 | ||
| C/1998 J1 | 1998 05 04.40287 | 02 15 46.10 | +20 22 14.0 | 249 | ||
| C/1998 J1 | 1998 05 04.44534 | 02 16 11.30 | +20 26 26.0 | 249 | ||
| C/1998 J1 | 1998 05 04.48822 | 02 16 37.90 | +20 30 30.0 | 249 | ||
| C/1998 J1 | 1998 05 04.52867 | 02 17 01.70 | +20 34 35.0 | 249 | ||
| C/1998 J1 | 1998 05 04.57318 | 02 17 30.00 | +20 38 47.0 | 249 | ||
| C/1998 J1 | 1998 05 04.61118 | 02 17 53.60 | +20 42 30.0 | 249 |