| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 05 29.76625 | 03 11 12.75 | +48 57 38.7 | 15.2 | T | 402 |
| C/1999 Y1 | 2000 05 29.76899 | 03 11 12.89 | +48 57 37.0 | 402 | ||
| C/1999 Y1 | 2000 05 29.77175 | 03 11 13.05 | +48 57 36.5 | 402 | ||
| C/1999 Y1 | 2000 06 04.76375 | 03 14 46.98 | +48 52 58.4 | 15.7 | T | 402 |
| C/1999 Y1 | 2000 06 04.76558 | 03 14 47.06 | +48 52 58.3 | 402 | ||
| C/1999 Y1 | 2000 06 04.76741 | 03 14 47.11 | +48 52 58.0 | 402 | ||
| C/1999 Y1 | 2000 06 14.75181 | 03 20 15.33 | +48 50 04.2 | 15.7 | T | 349 |
| C/1999 Y1 | 2000 06 14.75308 | 03 20 15.35 | +48 50 02.9 | 349 | ||
| C/1999 Y1 | 2000 07 01.70758 | 03 27 39.34 | +48 57 12.4 | 15.4 | T | 349 |
| C/1999 Y1 | 2000 07 01.71243 | 03 27 39.42 | +48 57 12.7 | 349 | ||
| C/1999 Y1 | 2000 07 01.71605 | 03 27 39.60 | +48 57 13.0 | 349 | ||
| C/1999 Y1 | 2000 07 21.06806 | 03 31 39.52 | +49 20 02.5 | 14.8 | T | 118 |
| C/1999 Y1 | 2000 07 21.07142 | 03 31 39.52 | +49 20 02.7 | 118 | ||
| C/1999 Y1 | 2000 07 21.08358 | 03 31 39.55 | +49 20 03.1 | 118 | ||
| C/1999 Y1 | 2000 07 28.88246 | 03 31 22.02 | +49 32 06.4 | 14.5 | T | 183 |
| C/1999 Y1 | 2000 07 28.90451 | 03 31 21.68 | +49 32 09.6 | 183 | ||
| C/1999 Y1 | 2000 07 28.92899 | 03 31 21.54 | +49 32 12.1 | 183 | ||
| C/1999 Y1 | 2000 07 29.71350 | 03 31 15.26 | +49 33 28.1 | 14.8 | T | 349 |
| C/1999 Y1 | 2000 07 29.71524 | 03 31 15.14 | +49 33 27.5 | 349 | ||
| C/1999 Y1 | 2000 07 29.71979 | 03 31 15.16 | +49 33 28.1 | 349 |