| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 12 16.37161 | 23 53 57.50 | +16 28 05.2 | 349 | ||
| C/1999 Y1 | 2000 12 16.37272 | 23 53 57.46 | +16 28 03.8 | 349 | ||
| C/1999 Y1 | 2000 12 16.37387 | 23 53 57.43 | +16 28 02.4 | 349 | ||
| C/1999 Y1 | 2000 12 16.71822 | 23 53 48.49 | +16 20 37.1 | 143 | ||
| C/1999 Y1 | 2000 12 16.71986 | 23 53 48.44 | +16 20 34.8 | 143 | ||
| C/1999 Y1 | 2000 12 16.72150 | 23 53 48.40 | +16 20 32.7 | 143 | ||
| C/1999 Y1 | 2000 12 16.72316 | 23 53 48.35 | +16 20 30.5 | 143 | ||
| C/1999 Y1 | 2000 12 16.72480 | 23 53 48.32 | +16 20 28.5 | 143 | ||
| C/1999 Y1 | 2000 12 16.72645 | 23 53 48.27 | +16 20 26.4 | 143 | ||
| C/1999 Y1 | 2000 12 16.72809 | 23 53 48.21 | +16 20 24.1 | 143 | ||
| C/1999 Y1 | 2000 12 16.72975 | 23 53 48.19 | +16 20 22.3 | 143 | ||
| C/1999 Y1 | 2000 12 16.73139 | 23 53 48.13 | +16 20 20.1 | 143 | ||
| C/1999 Y1 | 2000 12 16.76280 | 23 53 47.21 | +16 19 37.4 | 14.2 | T | 941 |
| C/1999 Y1 | 2000 12 16.89861 | 23 53 43.66 | +16 16 44.6 | 12.9 | T | 205 |
| C/1999 Y1 | 2000 12 16.90694 | 23 53 43.48 | +16 16 34.1 | 205 | ||
| C/1999 Y1 | 2000 12 16.91458 | 23 53 43.31 | +16 16 24.2 | 205 | ||
| C/1999 Y1 | 2000 12 16.92292 | 23 53 43.07 | +16 16 13.8 | 205 | ||
| C/1999 Y1 | 2000 12 17.75818 | 23 53 22.43 | +15 58 24.3 | 15.2 | T | 170 |
| C/1999 Y1 | 2000 12 17.77720 | 23 53 21.88 | +15 58 00.2 | 15.2 | T | 170 |
| C/1999 Y1 | 2000 12 19.07011 | 23 52 52.41 | +15 31 10.1 | 16.4 | T | 704 |