| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 H3 | 2000 05 10.89323 | 10 58 57.48 | +36 20 12.6 | 16.5 | T | 106 |
| C/1999 H3 | 2000 05 11.84993 | 10 58 04.22 | +36 09 07.4 | 16.4 | N | 170 |
| C/1999 H3 | 2000 05 11.86040 | 10 58 03.51 | +36 09 00.7 | 16.5 | N | 170 |
| C/1999 H3 | 2000 05 13.85101 | 10 56 18.19 | +35 45 56.4 | 16.2 | N | 170 |
| C/1999 H3 | 2000 05 13.85772 | 10 56 17.85 | +35 45 52.4 | 16.3 | N | 170 |
| C/1999 H3 | 2000 05 14.88336 | 10 55 26.34 | +35 33 57.3 | 046 | ||
| C/1999 H3 | 2000 05 14.88778 | 10 55 26.13 | +35 33 54.3 | 046 | ||
| C/1999 H3 | 2000 05 14.89082 | 10 55 25.96 | +35 33 52.0 | 046 | ||
| C/1999 H3 | 2000 05 15.87392 | 10 54 38.36 | +35 22 25.6 | 16.2 | N | 170 |
| C/1999 H3 | 2000 05 16.87691 | 10 53 51.73 | +35 10 45.5 | 16.2 | N | 170 |
| C/1999 H3 | 2000 05 20.90024 | 10 51 01.32 | +34 23 52.8 | 16.1 | T | 504 |
| C/1999 H3 | 2000 05 20.90265 | 10 51 01.17 | +34 23 50.4 | 16.1 | T | 504 |
| C/1999 H3 | 2000 05 20.90627 | 10 51 00.97 | +34 23 46.8 | 16.2 | T | 504 |
| C/1999 H3 | 2000 05 20.90840 | 10 51 00.77 | +34 23 46.4 | 16.1 | T | 504 |
| C/1999 H3 | 2000 05 23.26375 | 10 49 33.29 | +33 56 16.3 | 642 | ||
| C/1999 H3 | 2000 05 23.27289 | 10 49 32.99 | +33 56 13.3 | 642 | ||
| C/1999 H3 | 2000 05 24.89244 | 10 48 38.10 | +33 37 27.2 | 16.6 | N | 170 |
| C/1999 H3 | 2000 05 24.89895 | 10 48 37.73 | +33 37 21.6 | 16.6 | N | 170 |
| C/1999 H3 | 2000 05 26.90485 | 10 47 34.84 | +33 14 08.2 | 15.8 | T | 152 |
| C/1999 H3 | 2000 05 26.95793 | 10 47 33.24 | +33 13 31.2 | 16.0 | T | 152 |