| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 H3 | 2000 03 12.70541 | 12 51 36.27 | +42 22 01.8 | 14.1 | T | 900 |
| C/1999 H3 | 2000 03 13.87743 | 12 48 43.49 | +42 26 01.6 | 17.5 | N | 461 |
| C/1999 H3 | 2000 03 13.87951 | 12 48 43.21 | +42 26 02.1 | 461 | ||
| C/1999 H3 | 2000 03 13.88137 | 12 48 42.93 | +42 26 02.4 | 461 | ||
| C/1999 H3 | 2000 03 14.61072 | 12 46 55.01 | +42 28 16.2 | 355 | ||
| C/1999 H3 | 2000 03 14.61233 | 12 46 54.79 | +42 28 16.9 | 355 | ||
| C/1999 H3 | 2000 03 14.61399 | 12 46 54.50 | +42 28 17.0 | 355 | ||
| C/1999 H3 | 2000 03 14.67529 | 12 46 45.36 | +42 28 27.4 | 13.9 | T | 402 |
| C/1999 H3 | 2000 03 14.67648 | 12 46 45.18 | +42 28 27.7 | 402 | ||
| C/1999 H3 | 2000 03 14.67766 | 12 46 45.02 | +42 28 27.7 | 402 | ||
| C/1999 H3 | 2000 03 14.72491 | 12 46 37.96 | +42 28 36.3 | 900 | ||
| C/1999 H3 | 2000 03 14.73403 | 12 46 36.56 | +42 28 37.7 | 14.1 | T | 900 |
| C/1999 H3 | 2000 03 14.77431 | 12 46 30.57 | +42 28 44.5 | 14.7 | T | 360 |
| C/1999 H3 | 2000 03 14.77708 | 12 46 30.17 | +42 28 44.9 | 360 | ||
| C/1999 H3 | 2000 03 17.26335 | 12 40 21.04 | +42 34 33.4 | 17.9 | T | 750 |
| C/1999 H3 | 2000 03 17.26799 | 12 40 20.31 | +42 34 33.9 | 17.0 | T | 750 |
| C/1999 H3 | 2000 03 17.27661 | 12 40 19.10 | +42 34 34.5 | 17.0 | T | 750 |
| C/1999 H3 | 2000 03 17.31897 | 12 40 12.85 | +42 34 39.5 | 16.2 | T | 704 |
| C/1999 H3 | 2000 03 17.33215 | 12 40 10.80 | +42 34 41.3 | 15.9 | T | 704 |
| C/1999 H3 | 2000 03 17.34534 | 12 40 08.84 | +42 34 42.2 | 16.1 | T | 704 |