| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 H1 | 1999 04 21.45045 | 12 26 53.25 | -66 19 51.7 | 9.4 | T | 428 |
| C/1999 H1 | 1999 04 21.99453 | 12 17 44.87 | -65 53 01.1 | 12.3 | N | 859 |
| C/1999 H1 | 1999 04 22.00903 | 12 17 30.16 | -65 52 16.9 | 12.4 | N | 859 |
| C/1999 H1 | 1999 04 22.01316 | 12 17 25.96 | -65 52 04.0 | 12.4 | N | 859 |
| C/1999 H1 | 1999 04 22.14038 | 12 15 18.62 | -65 45 19.0 | 834 | ||
| C/1999 H1 | 1999 04 22.16876 | 12 14 49.92 | -65 43 48.1 | 834 | ||
| C/1999 H1 | 1999 04 22.21865 | 12 14 00.03 | -65 41 05.0 | 834 | ||
| C/1999 H1 | 1999 04 22.43958 | 12 10 23.12 | -65 28 55.2 | 13.7 | N | 430 |
| C/1999 H1 | 1999 04 22.45139 | 12 10 11.37 | -65 28 15.4 | 13.6 | N | 430 |
| C/1999 H1 | 1999 04 23.04409 | 12 00 33.55 | -64 53 10.9 | 834 | ||
| C/1999 H1 | 1999 04 23.99368 | 11 45 38.67 | -63 49 58.8 | 834 | ||
| C/1999 H1 | 1999 04 23.99623 | 11 45 36.19 | -63 49 46.3 | 844 | ||
| C/1999 H1 | 1999 04 24.00697 | 11 45 26.10 | -63 49 01.2 | 844 | ||
| C/1999 H1 | 1999 04 24.01797 | 11 45 16.04 | -63 48 14.8 | 834 | ||
| C/1999 H1 | 1999 04 24.02075 | 11 45 13.33 | -63 48 02.8 | 844 | ||
| C/1999 H1 | 1999 04 24.05032 | 11 44 45.91 | -63 45 56.7 | 834 | ||
| C/1999 H1 | 1999 04 24.05216 | 11 44 44.23 | -63 45 47.8 | 844 | ||
| C/1999 H1 | 1999 04 24.06034 | 11 44 36.69 | -63 45 13.2 | 844 | ||
| C/1999 H1 | 1999 04 24.15266 | 11 43 10.95 | -63 38 33.1 | 12.5 | N | 859 |
| C/1999 H1 | 1999 04 24.15512 | 11 43 08.67 | -63 38 22.2 | 12.2 | N | 859 |