| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2009 Y1 | 2010 12 15.85796 | 20 20 01.58 | +45 05 48.6 | 14.9 | N | 958 |
| C/2009 Y1 | 2010 12 16.82593 | 20 22 34.16 | +44 38 01.1 | 14.9 | N | J38 |
| C/2009 Y1 | 2010 12 16.82775 | 20 22 34.44 | +44 37 57.9 | 14.9 | N | J38 |
| C/2009 Y1 | 2010 12 16.82957 | 20 22 34.72 | +44 37 54.9 | 14.8 | N | J38 |
| C/2009 Y1 | 2010 12 18.79272 | 20 27 37.74 | +43 42 13.9 | 14.8 | N | 232 |
| C/2009 Y1 | 2010 12 18.79612 | 20 27 38.25 | +43 42 07.7 | 14.9 | N | 232 |
| C/2009 Y1 | 2010 12 18.79762 | 20 27 38.46 | +43 42 05.2 | 14.9 | N | 232 |
| C/2009 Y1 | 2010 12 18.85094 | 20 27 46.59 | +43 40 36.3 | 14.8 | N | J24 |
| C/2009 Y1 | 2010 12 18.85350 | 20 27 46.99 | +43 40 31.3 | 14.7 | N | J24 |
| C/2009 Y1 | 2010 12 18.85505 | 20 27 47.20 | +43 40 28.5 | 14.7 | N | J24 |
| C/2009 Y1 | 2010 12 18.88122 | 20 27 51.21 | +43 39 43.8 | 14.8 | N | J38 |
| C/2009 Y1 | 2010 12 18.88396 | 20 27 51.63 | +43 39 39.1 | 14.8 | N | J38 |
| C/2009 Y1 | 2010 12 18.88487 | 20 27 51.76 | +43 39 37.6 | 14.8 | N | J38 |
| C/2009 Y1 | 2010 12 19.79703 | 20 30 09.62 | +43 14 07.6 | 14.8 | N | 958 |
| C/2009 Y1 | 2010 12 19.80604 | 20 30 10.98 | +43 13 52.0 | 14.8 | N | 958 |
| C/2009 Y1 | 2010 12 19.81530 | 20 30 12.34 | +43 13 36.6 | 14.8 | N | 958 |
| C/2009 Y1 | 2010 12 19.82563 | 20 30 13.90 | +43 13 19.1 | 14.9 | N | 958 |
| C/2009 Y1 | 2010 12 19.83451 | 20 30 15.21 | +43 13 04.1 | 14.8 | N | 958 |
| C/2009 Y1 | 2010 12 19.84457 | 20 30 16.75 | +43 12 47.3 | 14.8 | N | 958 |
| C/2009 Y1 | 2010 12 20.68805 | 20 32 22.71 | +42 49 24.2 | 14.8 | N | 118 |