| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 J1 | 1998 05 06.53220 | 02 40 24.70 | +23 34 48.0 | 249 | ||
| C/1998 J1 | 1998 05 06.57665 | 02 40 58.60 | +23 38 06.0 | 249 | ||
| C/1998 J1 | 1998 05 06.61784 | 02 41 32.20 | +23 41 15.0 | 249 | ||
| C/1998 J1 | 1998 05 06.65745 | 02 42 04.00 | +23 44 28.0 | 249 | ||
| C/1998 J1 | 1998 05 06.73730 | 02 43 08.40 | +23 50 12.0 | 249 | ||
| C/1998 J1 | 1998 05 06.77867 | 02 43 42.20 | +23 53 09.0 | 249 | ||
| C/1998 J1 | 1998 05 06.82597 | 02 44 20.90 | +23 56 22.0 | 249 | ||
| C/1998 J1 | 1998 05 06.86004 | 02 44 48.30 | +23 58 28.0 | 249 | ||
| C/1998 J1 | 1998 05 06.90378 | 02 45 25.60 | +24 01 44.0 | 249 | ||
| C/1998 J1 | 1998 05 06.97761 | 02 46 27.80 | +24 06 41.0 | 249 | ||
| C/1998 J1 | 1998 05 07.02784 | 02 47 10.10 | +24 09 59.0 | 249 | ||
| C/1998 J1 | 1998 05 07.07265 | 02 47 48.50 | +24 12 58.0 | 249 | ||
| C/1998 J1 | 1998 05 07.11366 | 02 48 23.10 | +24 15 35.0 | 249 | ||
| C/1998 J1 | 1998 05 07.15438 | 02 48 58.00 | +24 18 36.0 | 249 | ||
| C/1998 J1 | 1998 05 07.23787 | 02 50 09.20 | +24 23 32.0 | 249 | ||
| C/1998 J1 | 1998 05 07.27865 | 02 50 46.80 | +24 25 53.0 | 249 | ||
| C/1998 J1 | 1998 05 07.32311 | 02 51 24.20 | +24 28 49.0 | 249 | ||
| C/1998 J1 | 1998 05 07.36334 | 02 52 00.00 | +24 30 31.0 | 249 | ||
| C/1998 J1 | 1998 05 07.40472 | 02 52 34.10 | +24 33 06.0 | 249 | ||
| C/1998 J1 | 1998 05 07.44793 | 02 53 11.00 | +24 36 01.0 | 249 |