| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2009 Y1 | 2010 11 30.74873 | 19 35 05.78 | +52 41 06.7 | 14.5 | N | C36 |
| C/2009 Y1 | 2010 11 30.76334 | 19 35 08.72 | +52 40 39.7 | 14.2 | N | C36 |
| C/2009 Y1 | 2010 11 30.76563 | 19 35 09.16 | +52 40 34.9 | 14.5 | N | C36 |
| C/2009 Y1 | 2010 12 02.79104 | 19 41 49.44 | +51 38 06.7 | 14.6 | T | 168 |
| C/2009 Y1 | 2010 12 02.79179 | 19 41 49.60 | +51 38 05.2 | 14.6 | T | 168 |
| C/2009 Y1 | 2010 12 02.92391 | 19 42 15.39 | +51 34 00.4 | 14.5 | T | 168 |
| C/2009 Y1 | 2010 12 02.92535 | 19 42 15.67 | +51 33 57.7 | 14.5 | T | 168 |
| C/2009 Y1 | 2010 12 03.87215 | 19 45 17.54 | +51 04 51.6 | 14.5 | N | J38 |
| C/2009 Y1 | 2010 12 03.87386 | 19 45 17.84 | +51 04 48.3 | 14.5 | N | J38 |
| C/2009 Y1 | 2010 12 03.87472 | 19 45 17.97 | +51 04 46.6 | 14.5 | N | J38 |
| C/2009 Y1 | 2010 12 04.69881 | 19 47 54.31 | +50 39 29.5 | 14.5 | N | B82 |
| C/2009 Y1 | 2010 12 04.69959 | 19 47 54.45 | +50 39 28.0 | 14.5 | N | B82 |
| C/2009 Y1 | 2010 12 04.70116 | 19 47 54.74 | +50 39 25.0 | 14.5 | N | B82 |
| C/2009 Y1 | 2010 12 04.70196 | 19 47 54.87 | +50 39 23.6 | 14.5 | N | B82 |
| C/2009 Y1 | 2010 12 04.72622 | 19 47 59.50 | +50 38 38.7 | 13.4 | N | A77 |
| C/2009 Y1 | 2010 12 04.72944 | 19 48 00.09 | +50 38 33.2 | 13.7 | N | A77 |
| C/2009 Y1 | 2010 12 04.73066 | 19 48 00.31 | +50 38 31.2 | 13.8 | N | A77 |
| C/2009 Y1 | 2010 12 05.35969 | 19 49 58.00 | +50 19 14.6 | 16.4 | N | D93 |
| C/2009 Y1 | 2010 12 05.36063 | 19 49 58.21 | +50 19 12.8 | 16.4 | N | D93 |
| C/2009 Y1 | 2010 12 05.36148 | 19 49 58.36 | +50 19 11.0 | 16.4 | N | D93 |