| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 H3 | 1999 06 08.23080 | 17 18 16.68 | +57 41 12.2 | 16.7 | T | 750 |
| C/1999 H3 | 1999 06 08.23358 | 17 18 16.08 | +57 41 13.3 | 16.2 | T | 750 |
| C/1999 H3 | 1999 06 08.66337 | 17 16 37.18 | +57 43 41.7 | 14.6 | T | 360 |
| C/1999 H3 | 1999 06 08.66580 | 17 16 36.59 | +57 43 42.6 | 360 | ||
| C/1999 H3 | 1999 06 08.92306 | 17 15 37.53 | +57 45 05.8 | 143 | ||
| C/1999 H3 | 1999 06 08.92471 | 17 15 37.13 | +57 45 06.2 | 143 | ||
| C/1999 H3 | 1999 06 08.92637 | 17 15 36.70 | +57 45 06.5 | 143 | ||
| C/1999 H3 | 1999 06 08.93425 | 17 15 34.85 | +57 45 08.9 | 143 | ||
| C/1999 H3 | 1999 06 08.93590 | 17 15 34.49 | +57 45 09.6 | 143 | ||
| C/1999 H3 | 1999 06 08.93755 | 17 15 34.12 | +57 45 10.2 | 143 | ||
| C/1999 H3 | 1999 06 14.56851 | 16 53 45.41 | +58 03 48.7 | 14.2 | T | 355 |
| C/1999 H3 | 1999 06 14.57277 | 16 53 44.42 | +58 03 49.3 | 355 | ||
| C/1999 H3 | 1999 06 14.57898 | 16 53 43.00 | +58 03 50.2 | 355 | ||
| C/1999 H3 | 1999 06 15.15860 | 16 51 28.29 | +58 04 25.0 | 17.6 | T | 750 |
| C/1999 H3 | 1999 06 15.17066 | 16 51 25.38 | +58 04 25.8 | 17.2 | T | 750 |
| C/1999 H3 | 1999 06 15.19864 | 16 51 18.81 | +58 04 26.9 | 15.7 | T | 750 |
| C/1999 H3 | 1999 06 17.89758 | 16 40 53.98 | +58 03 52.5 | 14.9 | T | 610 |
| C/1999 H3 | 1999 06 17.90175 | 16 40 53.00 | +58 03 52.3 | 610 | ||
| C/1999 H3 | 1999 06 17.90590 | 16 40 52.02 | +58 03 52.2 | 610 | ||
| C/1999 H3 | 1999 06 17.91006 | 16 40 51.04 | +58 03 52.1 | 610 |