| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2009 Y1 | 2010 08 21.88193 | 10 59 31.81 | +70 01 15.8 | 15.8 | N | B82 |
| C/2009 Y1 | 2010 08 21.88846 | 10 59 33.00 | +70 01 17.4 | 15.8 | N | B82 |
| C/2009 Y1 | 2010 08 25.78469 | 11 11 53.20 | +70 17 18.2 | 15.1 | T | 349 |
| C/2009 Y1 | 2010 08 25.79210 | 11 11 54.61 | +70 17 19.8 | 349 | ||
| C/2009 Y1 | 2010 08 31.87993 | 11 33 03.00 | +70 43 35.0 | 15.8 | N | B74 |
| C/2009 Y1 | 2010 08 31.88627 | 11 33 04.47 | +70 43 35.9 | 15.9 | N | B74 |
| C/2009 Y1 | 2010 08 31.89009 | 11 33 05.39 | +70 43 37.2 | 15.9 | N | B74 |
| C/2009 Y1 | 2010 09 03.45839 | 11 42 46.80 | +70 54 52.8 | 367 | ||
| C/2009 Y1 | 2010 09 03.46273 | 11 42 47.79 | +70 54 53.9 | 367 | ||
| C/2009 Y1 | 2010 09 03.46707 | 11 42 48.79 | +70 54 55.0 | 15.0 | T | 367 |
| C/2009 Y1 | 2010 09 03.79462 | 11 44 05.94 | +70 56 20.2 | 15.0 | T | 349 |
| C/2009 Y1 | 2010 09 03.79997 | 11 44 07.21 | +70 56 21.7 | 349 | ||
| C/2009 Y1 | 2010 09 06.96979 | 11 56 50.95 | +71 10 06.2 | 15.9 | N | A32 |
| C/2009 Y1 | 2010 09 06.97625 | 11 56 52.54 | +71 10 07.8 | 15.8 | N | A32 |
| C/2009 Y1 | 2010 09 06.97953 | 11 56 53.40 | +71 10 08.7 | 15.9 | N | A32 |
| C/2009 Y1 | 2010 09 06.98287 | 11 56 54.21 | +71 10 09.6 | 15.9 | N | A32 |
| C/2009 Y1 | 2010 09 06.98944 | 11 56 55.83 | +71 10 11.1 | 15.9 | N | A32 |
| C/2009 Y1 | 2010 09 09.85217 | 12 09 08.12 | +71 22 14.8 | 15.3 | N | J38 |
| C/2009 Y1 | 2010 09 09.85556 | 12 09 08.96 | +71 22 15.5 | 15.3 | N | J38 |
| C/2009 Y1 | 2010 09 09.85724 | 12 09 09.39 | +71 22 16.0 | 15.4 | N | J38 |