| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2009 Y1 | 2011 08 20.99610 | 23 11 16.75 | -14 02 02.4 | 15.3 | N | 958 |
| C/2009 Y1 | 2011 08 21.00965 | 23 11 15.44 | -14 02 24.1 | 15.2 | N | 958 |
| C/2009 Y1 | 2011 08 21.03133 | 23 11 13.61 | -14 03 00.8 | 017 | ||
| C/2009 Y1 | 2011 08 21.03572 | 23 11 13.24 | -14 03 07.4 | 017 | ||
| C/2009 Y1 | 2011 08 21.04010 | 23 11 12.88 | -14 03 14.6 | 017 | ||
| C/2009 Y1 | 2011 08 21.04449 | 23 11 12.47 | -14 03 21.9 | 017 | ||
| C/2009 Y1 | 2011 08 21.04888 | 23 11 12.13 | -14 03 27.9 | 017 | ||
| C/2009 Y1 | 2011 08 22.94045 | 23 08 27.90 | -14 55 02.7 | 16.2 | N | 585 |
| C/2009 Y1 | 2011 08 22.94258 | 23 08 27.73 | -14 55 06.1 | 16.4 | N | 585 |
| C/2009 Y1 | 2011 08 22.94329 | 23 08 27.69 | -14 55 07.3 | 16.2 | N | 585 |
| C/2009 Y1 | 2011 08 22.94355 | 23 08 27.81 | -14 55 07.3 | 15.4 | N | I99 |
| C/2009 Y1 | 2011 08 22.94399 | 23 08 27.61 | -14 55 08.6 | 16.3 | N | 585 |
| C/2009 Y1 | 2011 08 22.94578 | 23 08 27.56 | -14 55 11.3 | 15.5 | N | I99 |
| C/2009 Y1 | 2011 08 22.95572 | 23 08 26.61 | -14 55 27.2 | 15.3 | N | I99 |
| C/2009 Y1 | 2011 08 22.98303 | 23 08 24.20 | -14 56 12.6 | 15.0 | T | B51 |
| C/2009 Y1 | 2011 08 22.99348 | 23 08 23.25 | -14 56 29.6 | 15.0 | T | B51 |
| C/2009 Y1 | 2011 08 23.00188 | 23 08 22.52 | -14 56 43.0 | 15.0 | T | B51 |
| C/2009 Y1 | 2011 08 23.35194 | 23 07 51.82 | -15 06 11.8 | 15.5 | N | H47 |
| C/2009 Y1 | 2011 08 23.35820 | 23 07 51.24 | -15 06 22.1 | 15.4 | N | H47 |
| C/2009 Y1 | 2011 08 23.36305 | 23 07 50.82 | -15 06 30.0 | 15.6 | N | H47 |