| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 07 31.99323 | 03 30 51.83 | +49 37 06.9 | 14.0 | T | 183 |
| C/1999 Y1 | 2000 08 02.77447 | 03 30 27.98 | +49 40 00.8 | 355 | ||
| C/1999 Y1 | 2000 08 02.77852 | 03 30 27.93 | +49 40 01.6 | 14.9 | T | 355 |
| C/1999 Y1 | 2000 08 02.78256 | 03 30 27.87 | +49 40 01.7 | 355 | ||
| C/1999 Y1 | 2000 08 05.06794 | 03 29 49.98 | +49 43 42.4 | 15.3 | N | 170 |
| C/1999 Y1 | 2000 08 05.31616 | 03 29 45.43 | +49 44 04.2 | 642 | ||
| C/1999 Y1 | 2000 08 05.31863 | 03 29 45.22 | +49 44 04.7 | 642 | ||
| C/1999 Y1 | 2000 08 05.32115 | 03 29 45.14 | +49 44 05.3 | 642 | ||
| C/1999 Y1 | 2000 08 06.93531 | 03 29 12.56 | +49 46 38.4 | 14.0 | T | 183 |
| C/1999 Y1 | 2000 08 06.94117 | 03 29 12.44 | +49 46 38.7 | 183 | ||
| C/1999 Y1 | 2000 08 08.97736 | 03 28 24.81 | +49 49 49.0 | 13.5 | T | 183 |
| C/1999 Y1 | 2000 08 09.07943 | 03 28 22.24 | +49 49 58.8 | 14.6 | T | 613 |
| C/1999 Y1 | 2000 08 09.08964 | 03 28 21.94 | +49 50 00.2 | 14.8 | T | 613 |
| C/1999 Y1 | 2000 08 10.03347 | 03 27 57.15 | +49 51 26.1 | 15.2 | N | 170 |
| C/1999 Y1 | 2000 08 10.39912 | 03 27 47.56 | +49 51 58.1 | 17.0 | T | 704 |
| C/1999 Y1 | 2000 08 10.41403 | 03 27 46.79 | +49 51 59.6 | 18.6 | T | 704 |
| C/1999 Y1 | 2000 08 10.43168 | 03 27 46.17 | +49 52 00.4 | 18.6 | T | 704 |
| C/1999 Y1 | 2000 08 10.44742 | 03 27 45.64 | +49 52 01.2 | 18.6 | T | 704 |
| C/1999 Y1 | 2000 08 10.46393 | 03 27 44.80 | +49 52 05.3 | 17.4 | T | 704 |
| C/1999 Y1 | 2000 08 14.77083 | 03 25 27.58 | +49 58 11.2 | 14.5 | T | 360 |