| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 J1 | 1998 05 04.65366 | 02 18 19.50 | +20 46 27.0 | 249 | ||
| C/1998 J1 | 1998 05 04.69529 | 02 18 45.20 | +20 50 28.0 | 249 | ||
| C/1998 J1 | 1998 05 04.73697 | 02 19 11.80 | +20 54 31.0 | 249 | ||
| C/1998 J1 | 1998 05 04.77867 | 02 19 37.40 | +20 58 31.0 | 249 | ||
| C/1998 J1 | 1998 05 04.82053 | 02 20 04.20 | +21 02 29.0 | 249 | ||
| C/1998 J1 | 1998 05 04.84159 | 02 20 17.30 | +21 04 30.0 | 249 | ||
| C/1998 J1 | 1998 05 04.89655 | 02 20 52.80 | +21 09 44.0 | 249 | ||
| C/1998 J1 | 1998 05 04.92112 | 02 21 09.00 | +21 12 08.0 | 249 | ||
| C/1998 J1 | 1998 05 04.98776 | 02 21 50.80 | +21 18 27.0 | 249 | ||
| C/1998 J1 | 1998 05 05.02799 | 02 22 17.90 | +21 22 10.0 | 249 | ||
| C/1998 J1 | 1998 05 05.07282 | 02 22 46.50 | +21 26 30.0 | 249 | ||
| C/1998 J1 | 1998 05 05.11307 | 02 23 13.40 | +21 30 17.0 | 249 | ||
| C/1998 J1 | 1998 05 05.15365 | 02 23 40.00 | +21 34 04.0 | 249 | ||
| C/1998 J1 | 1998 05 05.20473 | 02 24 14.20 | +21 38 47.0 | 249 | ||
| C/1998 J1 | 1998 05 05.28053 | 02 25 04.60 | +21 45 57.0 | 249 | ||
| C/1998 J1 | 1998 05 05.36586 | 02 26 03.40 | +21 53 51.0 | 249 | ||
| C/1998 J1 | 1998 05 05.40867 | 02 26 32.20 | +21 57 39.0 | 249 | ||
| C/1998 J1 | 1998 05 05.45164 | 02 26 59.40 | +22 02 12.0 | 249 | ||
| C/1998 J1 | 1998 05 05.53732 | 02 28 00.60 | +22 09 31.0 | 249 | ||
| C/1998 J1 | 1998 05 05.58167 | 02 28 31.80 | +22 13 35.0 | 249 |