| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 H3 | 2000 03 29.86319 | 12 09 35.59 | +42 25 16.2 | 15.5 | N | 170 |
| C/1999 H3 | 2000 03 30.63271 | 12 07 46.99 | +42 22 39.0 | 903 | ||
| C/1999 H3 | 2000 03 30.63638 | 12 07 46.64 | +42 22 39.0 | 903 | ||
| C/1999 H3 | 2000 03 30.64332 | 12 07 45.59 | +42 22 38.4 | 14.9 | T | 903 |
| C/1999 H3 | 2000 03 31.81609 | 12 05 02.01 | +42 18 12.8 | 017 | ||
| C/1999 H3 | 2000 03 31.82183 | 12 05 01.23 | +42 18 11.3 | 017 | ||
| C/1999 H3 | 2000 03 31.82753 | 12 05 00.40 | +42 18 09.8 | 017 | ||
| C/1999 H3 | 2000 03 31.83154 | 12 04 59.84 | +42 18 08.9 | 017 | ||
| C/1999 H3 | 2000 03 31.83475 | 12 04 59.39 | +42 18 08.2 | 017 | ||
| C/1999 H3 | 2000 03 31.83719 | 12 04 59.06 | +42 18 07.8 | 017 | ||
| C/1999 H3 | 2000 03 31.83981 | 12 04 58.70 | +42 18 07.1 | 017 | ||
| C/1999 H3 | 2000 03 31.84014 | 12 04 58.71 | +42 18 06.7 | 16.2 | N | 170 |
| C/1999 H3 | 2000 03 31.84238 | 12 04 58.33 | +42 18 06.4 | 017 | ||
| C/1999 H3 | 2000 03 31.84487 | 12 04 57.98 | +42 18 05.8 | 017 | ||
| C/1999 H3 | 2000 03 31.84852 | 12 04 57.52 | +42 18 05.4 | 16.2 | N | 170 |
| C/1999 H3 | 2000 03 31.87308 | 12 04 54.03 | +42 17 59.1 | 16.1 | N | 170 |
| C/1999 H3 | 2000 03 31.89731 | 12 04 50.66 | +42 17 54.0 | 16.2 | N | 170 |
| C/1999 H3 | 2000 04 01.58098 | 12 03 16.18 | +42 15 04.7 | 352 | ||
| C/1999 H3 | 2000 04 01.58443 | 12 03 15.68 | +42 15 04.4 | 352 | ||
| C/1999 H3 | 2000 04 01.67112 | 12 03 03.63 | +42 14 42.2 | 15.0 | T | 349 |