| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 H1 | 1998 04 30.56676 | 15 01 55.23 | +21 23 28.7 | 400 | ||
| C/1998 H1 | 1998 04 30.56969 | 15 01 54.20 | +21 23 53.9 | 400 | ||
| C/1998 H1 | 1998 04 30.87367 | 14 59 53.87 | +22 04 42.0 | 620 | ||
| C/1998 H1 | 1998 04 30.87488 | 14 59 53.22 | +22 04 51.4 | 596 | ||
| C/1998 H1 | 1998 04 30.87517 | 14 59 53.19 | +22 04 53.9 | 620 | ||
| C/1998 H1 | 1998 04 30.87800 | 14 59 51.96 | +22 05 15.8 | 596 | ||
| C/1998 H1 | 1998 04 30.88164 | 14 59 50.49 | +22 05 45.4 | 596 | ||
| C/1998 H1 | 1998 04 30.88490 | 14 59 49.29 | +22 06 11.4 | 620 | ||
| C/1998 H1 | 1998 04 30.89010 | 14 59 47.18 | +22 06 53.6 | 620 | ||
| C/1998 H1 | 1998 05 01.08536 | 14 58 29.68 | +22 32 44.0 | 817 | ||
| C/1998 H1 | 1998 05 01.08828 | 14 58 28.55 | +22 33 07.2 | 817 | ||
| C/1998 H1 | 1998 05 01.09360 | 14 58 26.39 | +22 33 49.4 | 817 | ||
| C/1998 H1 | 1998 05 01.09689 | 14 58 25.07 | +22 34 15.4 | 817 | ||
| C/1998 H1 | 1998 05 01.10444 | 14 58 21.04 | +22 35 13.0 | 046 | ||
| C/1998 H1 | 1998 05 01.10522 | 14 58 20.73 | +22 35 19.2 | 046 | ||
| C/1998 H1 | 1998 05 01.10590 | 14 58 20.46 | +22 35 24.7 | 046 | ||
| C/1998 H1 | 1998 05 01.11234 | 14 58 18.55 | +22 36 35.7 | 12.5 | T | 860 |
| C/1998 H1 | 1998 05 01.11735 | 14 58 16.51 | +22 37 15.1 | 12.6 | T | 860 |
| C/1998 H1 | 1998 05 01.12072 | 14 58 15.10 | +22 37 41.9 | 860 | ||
| C/1998 H1 | 1998 05 01.12442 | 14 58 13.64 | +22 38 12.5 | 12.5 | T | 860 |