| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2009 Y1 | 2010 10 07.83692 | 14 46 32.69 | +71 47 28.1 | 15.0 | N | J38 |
| C/2009 Y1 | 2010 10 07.83922 | 14 46 33.58 | +71 47 27.4 | 15.1 | N | J38 |
| C/2009 Y1 | 2010 10 09.78560 | 14 59 35.62 | +71 36 45.5 | 14.9 | T | 235 |
| C/2009 Y1 | 2010 10 09.79234 | 14 59 38.32 | +71 36 42.9 | 14.9 | T | 235 |
| C/2009 Y1 | 2010 10 09.81733 | 14 59 48.55 | +71 36 33.0 | 15.4 | T | 561 |
| C/2009 Y1 | 2010 10 09.81975 | 14 59 49.53 | +71 36 32.1 | 15.3 | T | 561 |
| C/2009 Y1 | 2010 10 09.82128 | 14 59 50.15 | +71 36 31.6 | 15.3 | T | 561 |
| C/2009 Y1 | 2010 10 10.74791 | 15 06 04.71 | +71 30 35.6 | 14.9 | N | B82 |
| C/2009 Y1 | 2010 10 10.74869 | 15 06 05.01 | +71 30 35.2 | 14.9 | N | B82 |
| C/2009 Y1 | 2010 10 10.75068 | 15 06 05.82 | +71 30 34.4 | 14.9 | N | B82 |
| C/2009 Y1 | 2010 10 11.06586 | 15 08 13.90 | +71 28 22.4 | 15.9 | T | 561 |
| C/2009 Y1 | 2010 10 11.06749 | 15 08 14.59 | +71 28 21.4 | 15.9 | T | 561 |
| C/2009 Y1 | 2010 10 11.07499 | 15 08 17.64 | +71 28 18.4 | 15.8 | T | 561 |
| C/2009 Y1 | 2010 10 11.07661 | 15 08 18.33 | +71 28 17.5 | 15.9 | T | 561 |
| C/2009 Y1 | 2010 10 11.07824 | 15 08 18.98 | +71 28 16.9 | 15.9 | T | 561 |
| C/2009 Y1 | 2010 10 11.07987 | 15 08 19.59 | +71 28 16.3 | 15.9 | T | 561 |
| C/2009 Y1 | 2010 10 11.08150 | 15 08 20.30 | +71 28 15.6 | 15.9 | T | 561 |
| C/2009 Y1 | 2010 10 11.08317 | 15 08 20.97 | +71 28 15.0 | 15.9 | T | 561 |
| C/2009 Y1 | 2010 10 11.08446 | 15 08 21.48 | +71 28 14.4 | 15.9 | T | 561 |
| C/2009 Y1 | 2010 10 11.08574 | 15 08 22.02 | +71 28 13.7 | 15.9 | T | 561 |