| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2009 Y1 | 2011 08 05.03274 | 23 32 08.67 | -06 46 02.4 | 15.4 | N | J31 |
| C/2009 Y1 | 2011 08 05.03332 | 23 32 08.60 | -06 46 03.2 | 16.6 | N | C47 |
| C/2009 Y1 | 2011 08 05.03390 | 23 32 08.62 | -06 46 04.3 | 15.3 | N | J31 |
| C/2009 Y1 | 2011 08 05.03480 | 23 32 08.51 | -06 46 05.6 | 16.6 | N | C47 |
| C/2009 Y1 | 2011 08 05.42726 | 23 31 41.21 | -06 56 30.4 | 16.0 | N | H47 |
| C/2009 Y1 | 2011 08 05.43143 | 23 31 40.91 | -06 56 36.9 | 15.9 | N | H47 |
| C/2009 Y1 | 2011 08 05.43756 | 23 31 40.47 | -06 56 47.2 | 16.1 | N | H47 |
| C/2009 Y1 | 2011 08 06.27957 | 23 30 41.70 | -07 19 14.4 | 16.0 | T | H45 |
| C/2009 Y1 | 2011 08 06.28169 | 23 30 41.54 | -07 19 17.9 | 15.9 | T | H45 |
| C/2009 Y1 | 2011 08 06.28344 | 23 30 41.41 | -07 19 20.9 | 15.9 | T | H45 |
| C/2009 Y1 | 2011 08 06.28564 | 23 30 41.26 | -07 19 24.3 | 16.0 | T | H45 |
| C/2009 Y1 | 2011 08 06.28726 | 23 30 41.15 | -07 19 27.0 | 16.0 | T | H45 |
| C/2009 Y1 | 2011 08 06.29715 | 23 30 40.43 | -07 19 42.7 | 16.0 | T | H45 |
| C/2009 Y1 | 2011 08 06.74262 | 23 30 08.71 | -07 31 38.1 | 14.7 | T | 349 |
| C/2009 Y1 | 2011 08 06.74479 | 23 30 08.54 | -07 31 41.8 | 349 | ||
| C/2009 Y1 | 2011 08 07.03348 | 23 29 48.02 | -07 39 27.0 | 15.2 | N | 939 |
| C/2009 Y1 | 2011 08 07.03677 | 23 29 47.78 | -07 39 32.3 | 15.2 | N | 939 |
| C/2009 Y1 | 2011 08 07.04171 | 23 29 47.41 | -07 39 40.3 | 15.2 | N | 939 |
| C/2009 Y1 | 2011 08 07.06773 | 23 29 45.57 | -07 40 21.8 | I89 | ||
| C/2009 Y1 | 2011 08 07.06899 | 23 29 45.48 | -07 40 23.9 | I89 |