| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 09 30.88431 | 02 11 55.77 | +47 46 55.6 | 970 | ||
| C/1999 Y1 | 2000 10 01.47559 | 02 10 26.65 | +47 40 15.4 | 13.3 | T | 351 |
| C/1999 Y1 | 2000 10 01.48186 | 02 10 25.60 | +47 40 11.6 | 351 | ||
| C/1999 Y1 | 2000 10 01.48681 | 02 10 24.82 | +47 40 08.1 | 351 | ||
| C/1999 Y1 | 2000 10 02.19891 | 02 08 36.86 | +47 31 49.0 | 642 | ||
| C/1999 Y1 | 2000 10 02.20233 | 02 08 36.22 | +47 31 46.3 | 642 | ||
| C/1999 Y1 | 2000 10 02.20797 | 02 08 35.33 | +47 31 44.1 | 642 | ||
| C/1999 Y1 | 2000 10 03.16752 | 02 06 08.49 | +47 20 05.8 | 16.4 | T | 750 |
| C/1999 Y1 | 2000 10 03.17524 | 02 06 07.33 | +47 20 00.2 | 16.6 | T | 750 |
| C/1999 Y1 | 2000 10 03.18598 | 02 06 05.63 | +47 19 52.2 | 16.5 | T | 750 |
| C/1999 Y1 | 2000 10 04.55127 | 02 02 34.66 | +47 02 22.3 | 13.3 | T | 900 |
| C/1999 Y1 | 2000 10 04.56045 | 02 02 33.20 | +47 02 15.7 | 900 | ||
| C/1999 Y1 | 2000 10 04.59855 | 02 02 27.28 | +47 01 45.3 | 352 | ||
| C/1999 Y1 | 2000 10 04.60203 | 02 02 26.61 | +47 01 42.9 | 13.6 | T | 352 |
| C/1999 Y1 | 2000 10 04.60550 | 02 02 26.24 | +47 01 39.3 | 352 | ||
| C/1999 Y1 | 2000 10 05.65939 | 01 59 41.66 | +46 47 21.7 | 13.4 | T | 402 |
| C/1999 Y1 | 2000 10 05.66064 | 01 59 41.47 | +46 47 20.7 | 402 | ||
| C/1999 Y1 | 2000 10 05.66190 | 01 59 41.26 | +46 47 19.6 | 402 | ||
| C/1999 Y1 | 2000 10 05.85155 | 01 59 11.71 | +46 44 39.2 | 970 | ||
| C/1999 Y1 | 2000 10 05.86216 | 01 59 09.98 | +46 44 30.3 | 970 |