| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 09 15.61212 | 02 46 09.78 | +49 39 04.6 | 349 | ||
| C/1999 Y1 | 2000 09 15.61391 | 02 46 09.65 | +49 39 04.6 | 349 | ||
| C/1999 Y1 | 2000 09 17.22366 | 02 42 59.59 | +49 31 56.7 | 15.2 | T | 642 |
| C/1999 Y1 | 2000 09 17.22613 | 02 42 59.31 | +49 31 55.0 | 642 | ||
| C/1999 Y1 | 2000 09 17.22986 | 02 42 58.95 | +49 31 54.9 | 642 | ||
| C/1999 Y1 | 2000 09 18.33090 | 02 40 44.84 | +49 26 32.0 | 18.3 | T | 704 |
| C/1999 Y1 | 2000 09 18.34542 | 02 40 43.06 | +49 26 27.7 | 18.6 | T | 704 |
| C/1999 Y1 | 2000 09 18.35994 | 02 40 41.32 | +49 26 23.0 | 18.7 | T | 704 |
| C/1999 Y1 | 2000 09 18.39120 | 02 40 36.97 | +49 26 11.8 | 19.1 | T | 704 |
| C/1999 Y1 | 2000 09 18.52166 | 02 40 21.71 | +49 25 32.1 | 13.5 | T | 351 |
| C/1999 Y1 | 2000 09 18.52582 | 02 40 20.78 | +49 25 33.3 | 351 | ||
| C/1999 Y1 | 2000 09 18.52999 | 02 40 20.44 | +49 25 31.3 | 351 | ||
| C/1999 Y1 | 2000 09 18.78116 | 02 39 48.98 | +49 24 11.4 | 13.9 | T | 349 |
| C/1999 Y1 | 2000 09 18.78608 | 02 39 48.39 | +49 24 10.2 | 349 | ||
| C/1999 Y1 | 2000 09 18.79163 | 02 39 47.71 | +49 24 08.1 | 349 | ||
| C/1999 Y1 | 2000 09 19.69752 | 02 37 54.31 | +49 19 09.7 | 13.5 | T | 900 |
| C/1999 Y1 | 2000 09 19.70670 | 02 37 53.13 | +49 19 06.9 | 900 | ||
| C/1999 Y1 | 2000 09 20.16799 | 02 36 54.54 | +49 16 24.9 | 642 | ||
| C/1999 Y1 | 2000 09 20.17088 | 02 36 53.63 | +49 16 25.1 | 642 | ||
| C/1999 Y1 | 2000 09 20.63506 | 02 35 54.61 | +49 13 40.5 | 13.6 | T | 348 |