| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 10 26.68167 | 01 04 55.60 | +39 42 40.0 | 900 | ||
| C/1999 Y1 | 2000 10 27.56482 | 01 02 47.50 | +39 19 31.2 | 13.3 | T | 352 |
| C/1999 Y1 | 2000 10 27.57054 | 01 02 46.69 | +39 19 22.1 | 352 | ||
| C/1999 Y1 | 2000 10 27.68939 | 01 02 29.41 | +39 16 13.0 | 13.0 | T | 903 |
| C/1999 Y1 | 2000 10 27.69112 | 01 02 29.04 | +39 16 09.5 | 13.1 | T | 349 |
| C/1999 Y1 | 2000 10 27.69522 | 01 02 28.48 | +39 16 02.9 | 349 | ||
| C/1999 Y1 | 2000 10 27.69522 | 01 02 28.53 | +39 16 03.6 | 903 | ||
| C/1999 Y1 | 2000 10 27.69642 | 01 02 28.30 | +39 16 01.6 | 349 | ||
| C/1999 Y1 | 2000 10 28.16271 | 01 01 21.59 | +39 03 38.2 | 15.9 | T | 750 |
| C/1999 Y1 | 2000 10 28.17401 | 01 01 19.97 | +39 03 20.1 | 15.9 | T | 750 |
| C/1999 Y1 | 2000 10 28.18549 | 01 01 18.29 | +39 03 01.9 | 15.9 | T | 750 |
| C/1999 Y1 | 2000 10 30.15343 | 00 56 41.02 | +38 09 44.0 | 642 | ||
| C/1999 Y1 | 2000 10 30.15564 | 00 56 40.73 | +38 09 40.8 | 642 | ||
| C/1999 Y1 | 2000 10 30.15762 | 00 56 40.51 | +38 09 37.1 | 642 | ||
| C/1999 Y1 | 2000 11 03.53130 | 00 46 54.89 | +36 06 22.0 | 900 | ||
| C/1999 Y1 | 2000 11 03.53894 | 00 46 53.88 | +36 06 08.7 | 12.7 | T | 900 |
| C/1999 Y1 | 2000 11 04.24756 | 00 45 23.16 | +35 45 37.4 | 15.9 | T | 750 |
| C/1999 Y1 | 2000 11 04.26642 | 00 45 20.79 | +35 45 04.3 | 16.0 | T | 750 |
| C/1999 Y1 | 2000 11 04.66030 | 00 44 30.96 | +35 33 37.5 | 13.0 | T | 349 |
| C/1999 Y1 | 2000 11 04.66125 | 00 44 30.83 | +35 33 35.8 | 349 |