| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 11 29.15686 | 00 06 20.94 | +23 33 04.6 | 16.7 | T | 704 |
| C/1999 Y1 | 2000 11 29.17244 | 00 06 19.87 | +23 32 38.3 | 16.5 | T | 704 |
| C/1999 Y1 | 2000 11 29.18774 | 00 06 18.91 | +23 32 12.3 | 16.6 | T | 704 |
| C/1999 Y1 | 2000 11 29.20428 | 00 06 17.95 | +23 31 42.5 | 15.8 | T | 704 |
| C/1999 Y1 | 2000 12 01.51057 | 00 04 01.69 | +22 29 00.4 | 13.0 | T | 360 |
| C/1999 Y1 | 2000 12 01.51288 | 00 04 01.56 | +22 28 57.3 | 360 | ||
| C/1999 Y1 | 2000 12 01.60916 | 00 03 56.20 | +22 26 21.5 | 13.2 | T | 903 |
| C/1999 Y1 | 2000 12 01.61064 | 00 03 56.12 | +22 26 19.3 | 903 | ||
| C/1999 Y1 | 2000 12 02.55804 | 00 03 03.95 | +22 01 03.2 | 12.7 | T | 351 |
| C/1999 Y1 | 2000 12 02.56689 | 00 03 03.46 | +22 00 49.5 | 351 | ||
| C/1999 Y1 | 2000 12 02.58735 | 00 03 02.29 | +22 00 16.7 | 351 | ||
| C/1999 Y1 | 2000 12 02.94071 | 00 02 43.34 | +21 50 52.7 | 13.5 | T | 941 |
| C/1999 Y1 | 2000 12 03.07411 | 00 02 36.49 | +21 47 26.0 | 16.0 | T | 750 |
| C/1999 Y1 | 2000 12 03.08073 | 00 02 36.12 | +21 47 15.4 | 15.8 | T | 750 |
| C/1999 Y1 | 2000 12 03.08780 | 00 02 35.75 | +21 47 04.2 | 15.8 | T | 750 |
| C/1999 Y1 | 2000 12 03.85478 | 00 01 55.81 | +21 26 51.2 | 170 | ||
| C/1999 Y1 | 2000 12 03.86456 | 00 01 55.26 | +21 26 36.3 | 170 | ||
| C/1999 Y1 | 2000 12 06.40414 | 23 59 53.02 | +20 21 35.0 | 349 | ||
| C/1999 Y1 | 2000 12 06.40576 | 23 59 52.88 | +20 21 32.6 | 13.2 | T | 349 |
| C/1999 Y1 | 2000 12 06.40694 | 23 59 52.85 | +20 21 31.0 | 349 |