| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 H3 | 1999 04 30.57026 | 19 06 08.30 | +47 12 56.6 | 15.5 | T | 367 |
| C/1999 H3 | 1999 04 30.57512 | 19 06 07.84 | +47 13 02.8 | 367 | ||
| C/1999 H3 | 1999 04 30.57998 | 19 06 07.36 | +47 13 09.3 | 367 | ||
| C/1999 H3 | 1999 04 30.64853 | 19 06 00.77 | +47 14 41.1 | 15.1 | T | 355 |
| C/1999 H3 | 1999 04 30.65178 | 19 06 00.55 | +47 14 45.2 | 355 | ||
| C/1999 H3 | 1999 04 30.67363 | 19 05 58.45 | +47 15 14.1 | 355 | ||
| C/1999 H3 | 1999 05 06.63085 | 18 55 31.47 | +49 24 32.1 | 14.5 | T | 365 |
| C/1999 H3 | 1999 05 06.64288 | 18 55 30.13 | +49 24 48.9 | 365 | ||
| C/1999 H3 | 1999 05 06.73163 | 18 55 19.73 | +49 26 41.4 | 903 | ||
| C/1999 H3 | 1999 05 06.73934 | 18 55 18.72 | +49 26 52.6 | 14.1 | T | 903 |
| C/1999 H3 | 1999 05 07.57707 | 18 53 39.94 | +49 44 38.1 | 14.1 | T | 903 |
| C/1999 H3 | 1999 05 07.58977 | 18 53 38.42 | +49 44 54.3 | 903 | ||
| C/1999 H3 | 1999 05 07.65955 | 18 53 30.07 | +49 46 24.1 | 14.6 | T | 360 |
| C/1999 H3 | 1999 05 07.66163 | 18 53 29.85 | +49 46 27.0 | 360 | ||
| C/1999 H3 | 1999 05 07.66389 | 18 53 29.57 | +49 46 30.0 | 360 | ||
| C/1999 H3 | 1999 05 08.60359 | 18 51 35.02 | +50 06 16.1 | 355 | ||
| C/1999 H3 | 1999 05 08.61067 | 18 51 34.25 | +50 06 25.6 | 355 | ||
| C/1999 H3 | 1999 05 08.61343 | 18 51 33.87 | +50 06 29.0 | 355 | ||
| C/1999 H3 | 1999 05 08.62333 | 18 51 32.67 | +50 06 42.3 | 352 | ||
| C/1999 H3 | 1999 05 08.62750 | 18 51 32.22 | +50 06 45.9 | 352 |
