| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 H3 | 2000 04 25.12763 | 11 18 04.82 | +39 14 03.3 | 17.1 | T | 750 |
| C/1999 H3 | 2000 04 25.89237 | 11 16 56.83 | +39 06 10.4 | 16.6 | N | 170 |
| C/1999 H3 | 2000 04 26.14380 | 11 16 34.79 | +39 03 36.1 | 18.1 | T | 750 |
| C/1999 H3 | 2000 04 26.15262 | 11 16 33.94 | +39 03 30.0 | 17.5 | T | 750 |
| C/1999 H3 | 2000 04 28.60060 | 11 13 06.40 | +38 37 43.3 | 14.8 | T | 347 |
| C/1999 H3 | 2000 04 28.60434 | 11 13 06.06 | +38 37 42.0 | 15.1 | T | 360 |
| C/1999 H3 | 2000 04 28.60479 | 11 13 06.04 | +38 37 39.7 | 15.1 | T | 347 |
| C/1999 H3 | 2000 04 28.60880 | 11 13 05.74 | +38 37 38.0 | 347 | ||
| C/1999 H3 | 2000 04 28.60990 | 11 13 05.62 | +38 37 38.6 | 360 | ||
| C/1999 H3 | 2000 04 28.94492 | 11 12 38.23 | +38 34 02.6 | 16.6 | N | 170 |
| C/1999 H3 | 2000 04 29.45112 | 11 11 57.59 | +38 28 34.4 | 15.8 | T | 351 |
| C/1999 H3 | 2000 04 29.45826 | 11 11 57.02 | +38 28 30.2 | 351 | ||
| C/1999 H3 | 2000 04 29.46639 | 11 11 56.26 | +38 28 28.7 | 351 | ||
| C/1999 H3 | 2000 04 30.19871 | 11 10 58.08 | +38 20 42.3 | 18.9 | T | 704 |
| C/1999 H3 | 2000 04 30.22534 | 11 10 55.75 | +38 20 24.0 | 19.6 | T | 704 |
| C/1999 H3 | 2000 04 30.25227 | 11 10 53.65 | +38 20 04.4 | 18.8 | T | 704 |
| C/1999 H3 | 2000 05 01.61127 | 11 09 09.32 | +38 05 09.1 | 15.9 | T | 348 |
| C/1999 H3 | 2000 05 01.61640 | 11 09 08.80 | +38 05 03.5 | 348 | ||
| C/1999 H3 | 2000 05 02.86269 | 11 07 36.40 | +37 51 18.4 | 16.3 | N | 170 |
| C/1999 H3 | 2000 05 02.88662 | 11 07 34.61 | +37 51 02.1 | 16.4 | N | 170 |