| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2009 Y1 | 2011 02 16.70887 | 22 19 19.48 | +24 38 49.4 | 14.4 | N | 585 |
| C/2009 Y1 | 2011 02 16.70957 | 22 19 19.55 | +24 38 49.0 | 14.4 | N | 585 |
| C/2009 Y1 | 2011 02 16.71028 | 22 19 19.60 | +24 38 48.5 | 14.4 | N | 585 |
| C/2009 Y1 | 2011 02 16.71100 | 22 19 19.64 | +24 38 47.8 | 14.7 | N | 585 |
| C/2009 Y1 | 2011 02 16.71170 | 22 19 19.71 | +24 38 47.2 | 14.6 | N | 585 |
| C/2009 Y1 | 2011 02 19.39044 | 22 23 05.15 | +24 09 48.0 | 14.3 | T | D95 |
| C/2009 Y1 | 2011 02 19.39332 | 22 23 05.41 | +24 09 45.6 | D95 | ||
| C/2009 Y1 | 2011 02 19.39477 | 22 23 05.50 | +24 09 45.2 | D95 | ||
| C/2009 Y1 | 2011 02 19.39765 | 22 23 05.82 | +24 09 42.2 | D95 | ||
| C/2009 Y1 | 2011 02 21.38983 | 22 25 50.63 | +23 49 00.4 | 14.4 | T | D95 |
| C/2009 Y1 | 2011 02 21.39416 | 22 25 51.04 | +23 48 58.0 | D95 | ||
| C/2009 Y1 | 2011 02 21.39560 | 22 25 51.08 | +23 48 56.6 | D95 | ||
| C/2009 Y1 | 2011 02 21.39993 | 22 25 51.49 | +23 48 54.0 | D95 | ||
| C/2009 Y1 | 2011 02 22.41052 | 22 27 14.21 | +23 38 40.7 | 367 | ||
| C/2009 Y1 | 2011 02 22.41376 | 22 27 14.46 | +23 38 38.8 | 367 | ||
| C/2009 Y1 | 2011 02 22.41700 | 22 27 14.71 | +23 38 36.9 | 14.3 | T | 367 |
| C/2009 Y1 | 2011 04 03.13647 | 23 14 02.95 | +18 38 31.6 | 15.4 | N | A71 |
| C/2009 Y1 | 2011 04 03.13649 | 23 14 02.87 | +18 38 32.0 | 15.2 | N | A71 |
| C/2009 Y1 | 2011 04 16.79286 | 23 26 54.65 | +17 19 14.5 | 14.7 | T | 349 |
| C/2009 Y1 | 2011 04 16.79668 | 23 26 54.89 | +17 19 12.2 | 349 |