| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2009 Y1 | 2010 04 26.91334 | 09 07 57.33 | +71 44 56.9 | 17.6 | N | J38 |
| C/2009 Y1 | 2010 04 26.92478 | 09 07 56.21 | +71 44 54.4 | 17.6 | N | J38 |
| C/2009 Y1 | 2010 04 27.91229 | 09 06 30.87 | +71 41 45.6 | 18.1 | T | A13 |
| C/2009 Y1 | 2010 04 27.93064 | 09 06 29.28 | +71 41 41.8 | 17.9 | T | A13 |
| C/2009 Y1 | 2010 04 27.95080 | 09 06 27.58 | +71 41 37.9 | 18.0 | T | A13 |
| C/2009 Y1 | 2010 04 29.79935 | 09 03 58.02 | +71 35 29.6 | 18.4 | N | 160 |
| C/2009 Y1 | 2010 04 29.80136 | 09 03 57.91 | +71 35 30.0 | 18.7 | N | 160 |
| C/2009 Y1 | 2010 04 29.80337 | 09 03 57.75 | +71 35 30.1 | 18.5 | N | 160 |
| C/2009 Y1 | 2010 05 05.92428 | 08 57 12.11 | +71 13 26.3 | 17.4 | N | J38 |
| C/2009 Y1 | 2010 05 05.93072 | 08 57 11.72 | +71 13 24.8 | 17.4 | N | J38 |
| C/2009 Y1 | 2010 05 05.93393 | 08 57 11.57 | +71 13 24.0 | 17.4 | N | J38 |
| C/2009 Y1 | 2010 05 07.53516 | 08 55 47.40 | +71 07 19.2 | 367 | ||
| C/2009 Y1 | 2010 05 07.54094 | 08 55 47.06 | +71 07 18.0 | 367 | ||
| C/2009 Y1 | 2010 05 07.54673 | 08 55 46.74 | +71 07 16.5 | 17.4 | T | 367 |
| C/2009 Y1 | 2010 05 14.89120 | 08 51 10.32 | +70 38 47.9 | 17.3 | T | 561 |
| C/2009 Y1 | 2010 05 14.89560 | 08 51 10.26 | +70 38 46.8 | 17.5 | T | 561 |
| C/2009 Y1 | 2010 05 14.89965 | 08 51 10.13 | +70 38 45.8 | 17.3 | T | 561 |
| C/2009 Y1 | 2010 05 17.91590 | 08 50 05.49 | +70 27 07.1 | 17.5 | N | J38 |
| C/2009 Y1 | 2010 05 17.92555 | 08 50 05.32 | +70 27 04.7 | 17.4 | N | J38 |
| C/2009 Y1 | 2010 05 17.92876 | 08 50 05.27 | +70 27 04.2 | 17.4 | N | J38 |