| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 10 12.13347 | 01 42 34.32 | +45 04 38.9 | 642 | ||
| C/1999 Y1 | 2000 10 13.49813 | 01 38 56.36 | +44 39 45.1 | 13.6 | T | 351 |
| C/1999 Y1 | 2000 10 13.50413 | 01 38 55.40 | +44 39 35.4 | 351 | ||
| C/1999 Y1 | 2000 10 15.57508 | 01 33 24.73 | +43 59 35.1 | 900 | ||
| C/1999 Y1 | 2000 10 15.58265 | 01 33 23.52 | +43 59 26.9 | 13.1 | T | 900 |
| C/1999 Y1 | 2000 10 18.69895 | 01 25 10.13 | +42 54 16.7 | 12.9 | T | 349 |
| C/1999 Y1 | 2000 10 18.69999 | 01 25 09.98 | +42 54 15.3 | 349 | ||
| C/1999 Y1 | 2000 10 18.70181 | 01 25 09.67 | +42 54 13.2 | 349 | ||
| C/1999 Y1 | 2000 10 20.19952 | 01 21 15.67 | +42 20 53.2 | 15.5 | T | 750 |
| C/1999 Y1 | 2000 10 20.21411 | 01 21 13.37 | +42 20 33.3 | 15.5 | T | 750 |
| C/1999 Y1 | 2000 10 20.22505 | 01 21 11.68 | +42 20 18.1 | 15.5 | T | 750 |
| C/1999 Y1 | 2000 10 21.15354 | 01 18 47.90 | +41 58 58.2 | 642 | ||
| C/1999 Y1 | 2000 10 21.15552 | 01 18 47.59 | +41 58 55.3 | 642 | ||
| C/1999 Y1 | 2000 10 23.76403 | 01 12 08.61 | +40 56 31.5 | 13.2 | T | 349 |
| C/1999 Y1 | 2000 10 23.76518 | 01 12 08.46 | +40 56 29.7 | 349 | ||
| C/1999 Y1 | 2000 10 23.76848 | 01 12 07.94 | +40 56 25.1 | 349 | ||
| C/1999 Y1 | 2000 10 26.57615 | 01 05 10.99 | +39 45 23.9 | 13.0 | T | 402 |
| C/1999 Y1 | 2000 10 26.57742 | 01 05 10.81 | +39 45 21.9 | 402 | ||
| C/1999 Y1 | 2000 10 26.57868 | 01 05 10.61 | +39 45 20.0 | 402 | ||
| C/1999 Y1 | 2000 10 26.67875 | 01 04 56.03 | +39 42 44.4 | 900 |