| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2009 Y1 | 2010 12 12.73596 | 20 11 35.04 | +46 36 55.5 | 16.0 | N | C23 |
| C/2009 Y1 | 2010 12 12.74194 | 20 11 35.90 | +46 36 46.7 | 14.7 | N | B96 |
| C/2009 Y1 | 2010 12 12.74493 | 20 11 36.38 | +46 36 41.4 | 14.8 | N | B96 |
| C/2009 Y1 | 2010 12 12.74793 | 20 11 36.90 | +46 36 35.9 | 14.8 | N | B96 |
| C/2009 Y1 | 2010 12 12.74973 | 20 11 37.25 | +46 36 32.3 | 15.9 | N | C23 |
| C/2009 Y1 | 2010 12 12.75093 | 20 11 37.41 | +46 36 30.6 | 14.7 | N | B96 |
| C/2009 Y1 | 2010 12 12.75392 | 20 11 37.88 | +46 36 25.6 | 14.6 | N | B96 |
| C/2009 Y1 | 2010 12 12.75691 | 20 11 38.31 | +46 36 20.4 | 14.2 | N | B96 |
| C/2009 Y1 | 2010 12 12.75747 | 20 11 38.69 | +46 36 17.3 | 15.9 | N | C23 |
| C/2009 Y1 | 2010 12 12.75988 | 20 11 38.87 | +46 36 14.7 | 14.8 | N | B96 |
| C/2009 Y1 | 2010 12 12.76287 | 20 11 39.36 | +46 36 09.6 | 14.7 | N | B96 |
| C/2009 Y1 | 2010 12 13.75471 | 20 14 22.77 | +46 06 58.4 | 14.9 | N | 585 |
| C/2009 Y1 | 2010 12 13.75525 | 20 14 22.84 | +46 06 57.1 | 15.0 | N | 585 |
| C/2009 Y1 | 2010 12 13.75602 | 20 14 22.96 | +46 06 56.5 | 14.9 | N | 585 |
| C/2009 Y1 | 2010 12 13.75672 | 20 14 23.09 | +46 06 55.3 | 14.9 | N | 585 |
| C/2009 Y1 | 2010 12 13.75813 | 20 14 23.31 | +46 06 52.7 | 15.0 | N | 585 |
| C/2009 Y1 | 2010 12 13.75953 | 20 14 23.55 | +46 06 50.4 | 15.0 | N | 585 |
| C/2009 Y1 | 2010 12 13.76093 | 20 14 23.74 | +46 06 48.1 | 15.0 | N | 585 |
| C/2009 Y1 | 2010 12 13.76234 | 20 14 24.01 | +46 06 45.1 | 15.0 | N | 585 |
| C/2009 Y1 | 2010 12 13.76374 | 20 14 24.28 | +46 06 42.1 | 15.0 | N | 585 |