| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 08 25.95404 | 03 16 28.68 | +50 08 49.6 | 127 | ||
| C/1999 Y1 | 2000 08 26.63759 | 03 15 46.43 | +50 09 07.9 | 14.4 | T | 349 |
| C/1999 Y1 | 2000 08 26.63924 | 03 15 46.29 | +50 09 07.7 | 349 | ||
| C/1999 Y1 | 2000 08 26.64112 | 03 15 46.21 | +50 09 07.5 | 349 | ||
| C/1999 Y1 | 2000 08 27.06598 | 03 15 19.15 | +50 09 18.6 | 958 | ||
| C/1999 Y1 | 2000 08 27.08038 | 03 15 18.40 | +50 09 18.8 | 958 | ||
| C/1999 Y1 | 2000 08 28.05764 | 03 14 14.78 | +50 09 31.6 | 958 | ||
| C/1999 Y1 | 2000 08 28.14817 | 03 14 08.73 | +50 09 33.4 | 958 | ||
| C/1999 Y1 | 2000 08 28.16310 | 03 14 07.72 | +50 09 33.1 | 958 | ||
| C/1999 Y1 | 2000 08 28.17462 | 03 14 06.91 | +50 09 32.8 | 958 | ||
| C/1999 Y1 | 2000 08 29.03867 | 03 13 08.66 | +50 09 38.8 | 958 | ||
| C/1999 Y1 | 2000 08 29.08616 | 03 13 05.27 | +50 09 39.4 | 958 | ||
| C/1999 Y1 | 2000 08 29.12193 | 03 13 02.77 | +50 09 40.1 | 958 | ||
| C/1999 Y1 | 2000 08 29.23818 | 03 12 54.86 | +50 09 38.0 | 642 | ||
| C/1999 Y1 | 2000 08 29.23942 | 03 12 54.65 | +50 09 38.1 | 642 | ||
| C/1999 Y1 | 2000 08 29.24066 | 03 12 54.60 | +50 09 38.2 | 642 | ||
| C/1999 Y1 | 2000 08 29.24314 | 03 12 54.59 | +50 09 38.3 | 642 | ||
| C/1999 Y1 | 2000 08 29.63293 | 03 12 27.30 | +50 09 43.1 | 14.2 | T | 352 |
| C/1999 Y1 | 2000 08 29.63640 | 03 12 27.14 | +50 09 43.0 | 352 | ||
| C/1999 Y1 | 2000 08 29.70303 | 03 12 22.40 | +50 09 39.9 | 14.4 | T | 349 |