| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2009 Y1 | 2011 06 13.41595 | 23 58 02.74 | +09 57 30.0 | 15.3 | N | H47 |
| C/2009 Y1 | 2011 06 13.41903 | 23 58 02.77 | +09 57 27.7 | 15.1 | N | H47 |
| C/2009 Y1 | 2011 06 13.42255 | 23 58 02.78 | +09 57 25.6 | 15.4 | N | H47 |
| C/2009 Y1 | 2011 06 13.42381 | 23 58 02.74 | +09 57 24.7 | 14.5 | T | 703 |
| C/2009 Y1 | 2011 06 13.42589 | 23 58 02.82 | +09 57 22.2 | 15.1 | N | H47 |
| C/2009 Y1 | 2011 06 13.43101 | 23 58 02.78 | +09 57 20.0 | 14.4 | T | 703 |
| C/2009 Y1 | 2011 06 13.43825 | 23 58 02.78 | +09 57 15.5 | 14.3 | T | 703 |
| C/2009 Y1 | 2011 06 13.44546 | 23 58 02.78 | +09 57 10.6 | 14.3 | T | 703 |
| C/2009 Y1 | 2011 06 14.40966 | 23 58 08.81 | +09 45 48.0 | 15.8 | N | H47 |
| C/2009 Y1 | 2011 06 14.41367 | 23 58 08.84 | +09 45 45.0 | 15.8 | N | H47 |
| C/2009 Y1 | 2011 06 14.41674 | 23 58 08.85 | +09 45 42.8 | 15.6 | N | H47 |
| C/2009 Y1 | 2011 06 15.06192 | 23 58 11.93 | +09 37 59.2 | 15.2 | N | 958 |
| C/2009 Y1 | 2011 06 15.07874 | 23 58 12.23 | +09 37 45.0 | 15.3 | N | 958 |
| C/2009 Y1 | 2011 06 15.40493 | 23 58 13.76 | +09 33 51.7 | 15.7 | N | H10 |
| C/2009 Y1 | 2011 06 15.40916 | 23 58 13.77 | +09 33 48.0 | 15.7 | N | H10 |
| C/2009 Y1 | 2011 06 15.41341 | 23 58 13.78 | +09 33 45.3 | 15.5 | N | H10 |
| C/2009 Y1 | 2011 06 15.43284 | 23 58 13.90 | +09 33 30.9 | H06 | ||
| C/2009 Y1 | 2011 06 15.43404 | 23 58 13.89 | +09 33 29.9 | H06 | ||
| C/2009 Y1 | 2011 06 15.43524 | 23 58 13.88 | +09 33 29.1 | H06 | ||
| C/2009 Y1 | 2011 06 15.43644 | 23 58 13.90 | +09 33 28.5 | 14.0 | T | H06 |