| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 09 09.17309 | 02 57 39.92 | +49 59 04.1 | 958 | ||
| C/1999 Y1 | 2000 09 09.19236 | 02 57 37.88 | +49 59 01.9 | 958 | ||
| C/1999 Y1 | 2000 09 09.39855 | 02 57 18.05 | +49 58 37.3 | 15.5 | T | 704 |
| C/1999 Y1 | 2000 09 09.41268 | 02 57 16.29 | +49 58 31.7 | 16.6 | T | 704 |
| C/1999 Y1 | 2000 09 09.42656 | 02 57 14.92 | +49 58 30.8 | 16.5 | T | 704 |
| C/1999 Y1 | 2000 09 09.44049 | 02 57 13.46 | +49 58 28.3 | 16.6 | T | 704 |
| C/1999 Y1 | 2000 09 09.45464 | 02 57 11.61 | +49 58 22.5 | 15.9 | T | 704 |
| C/1999 Y1 | 2000 09 10.63036 | 02 55 13.72 | +49 55 37.4 | 14.2 | T | 349 |
| C/1999 Y1 | 2000 09 10.63155 | 02 55 13.63 | +49 55 37.2 | 349 | ||
| C/1999 Y1 | 2000 09 10.63270 | 02 55 13.43 | +49 55 37.2 | 349 | ||
| C/1999 Y1 | 2000 09 11.21925 | 02 54 12.96 | +49 54 02.4 | 15.7 | T | 642 |
| C/1999 Y1 | 2000 09 11.22422 | 02 54 12.44 | +49 54 01.5 | 642 | ||
| C/1999 Y1 | 2000 09 11.22546 | 02 54 12.23 | +49 54 00.7 | 642 | ||
| C/1999 Y1 | 2000 09 12.07571 | 02 52 42.73 | +49 51 36.6 | 046 | ||
| C/1999 Y1 | 2000 09 12.07686 | 02 52 42.61 | +49 51 36.4 | 046 | ||
| C/1999 Y1 | 2000 09 12.07797 | 02 52 42.48 | +49 51 36.3 | 046 | ||
| C/1999 Y1 | 2000 09 13.18772 | 02 50 43.00 | +49 48 03.4 | 15.3 | T | 642 |
| C/1999 Y1 | 2000 09 13.19020 | 02 50 42.72 | +49 48 03.4 | 642 | ||
| C/1999 Y1 | 2000 09 13.19516 | 02 50 42.15 | +49 48 03.2 | 642 | ||
| C/1999 Y1 | 2000 09 15.61037 | 02 46 10.01 | +49 39 04.8 | 349 |