| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2009 Y1 | 2011 07 29.14150 | 23 39 29.45 | -03 48 13.7 | 15.3 | N | 958 |
| C/2009 Y1 | 2011 07 29.15354 | 23 39 28.81 | -03 48 31.7 | 15.3 | N | 958 |
| C/2009 Y1 | 2011 07 29.31247 | 23 39 19.48 | -03 52 27.1 | 16.5 | T | 704 |
| C/2009 Y1 | 2011 07 29.32398 | 23 39 18.78 | -03 52 45.9 | 16.7 | T | 704 |
| C/2009 Y1 | 2011 07 29.35863 | 23 39 16.61 | -03 53 37.5 | 16.7 | T | 704 |
| C/2009 Y1 | 2011 07 30.07746 | 23 38 33.81 | -04 11 42.9 | 15.6 | N | 958 |
| C/2009 Y1 | 2011 07 30.08038 | 23 38 33.62 | -04 11 47.6 | 15.3 | N | 212 |
| C/2009 Y1 | 2011 07 30.08184 | 23 38 33.53 | -04 11 49.6 | 15.3 | N | 212 |
| C/2009 Y1 | 2011 07 30.08475 | 23 38 33.34 | -04 11 54.3 | 15.3 | N | 212 |
| C/2009 Y1 | 2011 07 30.08793 | 23 38 33.12 | -04 11 59.2 | 15.7 | N | 958 |
| C/2009 Y1 | 2011 07 30.09938 | 23 38 32.46 | -04 12 16.4 | 15.8 | N | 958 |
| C/2009 Y1 | 2011 07 30.24807 | 23 38 23.44 | -04 15 58.1 | 14.2 | N | I68 |
| C/2009 Y1 | 2011 07 30.26713 | 23 38 22.30 | -04 16 27.6 | 14.3 | N | I68 |
| C/2009 Y1 | 2011 07 30.99861 | 23 37 37.74 | -04 35 03.6 | 15.5 | N | 958 |
| C/2009 Y1 | 2011 07 31.00963 | 23 37 36.99 | -04 35 19.9 | 15.8 | N | 958 |
| C/2009 Y1 | 2011 07 31.02100 | 23 37 36.26 | -04 35 37.7 | 15.8 | N | 958 |
| C/2009 Y1 | 2011 07 31.11774 | 23 37 30.24 | -04 38 05.7 | 15.5 | N | J52 |
| C/2009 Y1 | 2011 07 31.12058 | 23 37 30.04 | -04 38 10.2 | 15.4 | N | J52 |
| C/2009 Y1 | 2011 07 31.12811 | 23 37 29.54 | -04 38 22.2 | 15.5 | N | J52 |
| C/2009 Y1 | 2011 08 01.00728 | 23 36 34.75 | -05 00 51.5 | 15.7 | N | 958 |