| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 H1 | 1999 09 04.85567 | 05 59 33.66 | +52 34 19.3 | 10.0 | T | 540 |
| C/1999 H1 | 1999 09 04.86169 | 05 59 31.62 | +52 34 32.4 | 540 | ||
| C/1999 H1 | 1999 09 04.86285 | 05 59 31.40 | +52 34 34.6 | 540 | ||
| C/1999 H1 | 1999 09 04.86400 | 05 59 30.90 | +52 34 37.2 | 540 | ||
| C/1999 H1 | 1999 09 04.86516 | 05 59 30.51 | +52 34 39.4 | 540 | ||
| C/1999 H1 | 1999 09 05.70358 | 05 54 46.80 | +53 03 56.1 | 349 | ||
| C/1999 H1 | 1999 09 05.72351 | 05 54 39.77 | +53 04 37.5 | 349 | ||
| C/1999 H1 | 1999 09 05.79956 | 05 54 12.86 | +53 07 17.5 | 9.1 | T | 349 |
| C/1999 H1 | 1999 09 06.13234 | 05 52 14.93 | +53 18 52.0 | 046 | ||
| C/1999 H1 | 1999 09 06.13591 | 05 52 13.63 | +53 18 59.6 | 046 | ||
| C/1999 H1 | 1999 09 06.13845 | 05 52 12.71 | +53 19 04.9 | 046 | ||
| C/1999 H1 | 1999 09 08.04321 | 05 40 03.34 | +54 25 18.9 | 106 | ||
| C/1999 H1 | 1999 09 08.05062 | 05 40 00.24 | +54 25 34.5 | 106 | ||
| C/1999 H1 | 1999 09 08.10355 | 05 39 38.53 | +54 27 25.8 | 106 | ||
| C/1999 H1 | 1999 09 08.10579 | 05 39 37.53 | +54 27 30.5 | 106 | ||
| C/1999 H1 | 1999 09 09.12861 | 05 32 23.10 | +55 02 40.1 | 10.5 | T | 118 |
| C/1999 H1 | 1999 09 09.13170 | 05 32 21.71 | +55 02 46.6 | 118 | ||
| C/1999 H1 | 1999 09 10.02656 | 05 25 36.15 | +55 33 00.8 | 13.0 | N | 610 |
| C/1999 H1 | 1999 09 10.03003 | 05 25 34.51 | +55 33 07.9 | 610 | ||
| C/1999 H1 | 1999 09 10.03351 | 05 25 32.87 | +55 33 14.9 | 610 |