| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 H1 | 1999 04 16.59549 | 13 49 24.64 | -68 21 33.6 | 14.0 | N | 422 |
| C/1999 H1 | 1999 04 16.59650 | 13 49 23.58 | -68 21 33.3 | 13.9 | N | 422 |
| C/1999 H1 | 1999 04 16.59941 | 13 49 20.80 | -68 21 32.3 | 14.2 | N | 422 |
| C/1999 H1 | 1999 04 16.61689 | 13 49 03.53 | -68 21 26.4 | 14.2 | N | 422 |
| C/1999 H1 | 1999 04 16.61777 | 13 49 02.67 | -68 21 26.0 | 14.0 | N | 422 |
| C/1999 H1 | 1999 04 16.61839 | 13 49 02.14 | -68 21 25.7 | 13.9 | N | 422 |
| C/1999 H1 | 1999 04 16.77635 | 13 46 26.62 | -68 20 21.9 | 13.9 | N | 422 |
| C/1999 H1 | 1999 04 16.77679 | 13 46 26.17 | -68 20 21.8 | 13.9 | N | 422 |
| C/1999 H1 | 1999 04 16.77727 | 13 46 25.66 | -68 20 21.6 | 13.9 | N | 422 |
| C/1999 H1 | 1999 04 17.57644 | 13 33 12.48 | -68 12 39.9 | 427 | ||
| C/1999 H1 | 1999 04 17.57783 | 13 33 11.07 | -68 12 38.9 | 427 | ||
| C/1999 H1 | 1999 04 17.57922 | 13 33 09.69 | -68 12 37.8 | 427 | ||
| C/1999 H1 | 1999 04 17.58101 | 13 33 07.89 | -68 12 36.4 | 427 | ||
| C/1999 H1 | 1999 04 17.59843 | 13 32 50.27 | -68 12 23.1 | 427 | ||
| C/1999 H1 | 1999 04 17.60828 | 13 32 40.17 | -68 12 14.8 | 427 | ||
| C/1999 H1 | 1999 04 17.61129 | 13 32 37.11 | -68 12 12.6 | 427 | ||
| C/1999 H1 | 1999 04 17.63154 | 13 32 16.62 | -68 11 56.6 | 427 | ||
| C/1999 H1 | 1999 04 17.63351 | 13 32 14.57 | -68 11 55.2 | 427 | ||
| C/1999 H1 | 1999 04 17.65347 | 13 31 54.34 | -68 11 39.8 | 13.1 | N | 426 |
| C/1999 H1 | 1999 04 17.65748 | 13 31 50.22 | -68 11 36.5 | 13.0 | N | 426 |