| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2009 Y1 | 2009 12 19.99791 | 12 11 31.38 | +45 04 53.7 | 19.4 | N | 473 |
| C/2009 Y1 | 2009 12 20.14725 | 12 11 34.86 | +45 07 08.2 | 19.3 | T | 204 |
| C/2009 Y1 | 2009 12 20.20951 | 12 11 36.30 | +45 08 04.1 | 204 | ||
| C/2009 Y1 | 2009 12 20.52955 | 12 11 43.87 | +45 12 52.6 | 19.3 | T | H01 |
| C/2009 Y1 | 2009 12 20.53524 | 12 11 44.00 | +45 12 57.7 | 19.2 | T | H01 |
| C/2009 Y1 | 2009 12 20.54126 | 12 11 44.12 | +45 13 03.2 | 19.2 | T | H01 |
| C/2009 Y1 | 2009 12 20.54635 | 12 11 44.24 | +45 13 07.7 | 19.2 | T | H01 |
| C/2009 Y1 | 2009 12 21.18958 | 12 11 59.04 | +45 22 49.7 | 19.0 | T | 473 |
| C/2009 Y1 | 2009 12 21.19097 | 12 11 59.06 | +45 22 50.9 | 19.0 | T | 473 |
| C/2009 Y1 | 2009 12 21.72494 | 12 12 11.28 | +45 30 58.6 | 19.1 | T | 349 |
| C/2009 Y1 | 2009 12 21.73076 | 12 12 11.42 | +45 31 04.2 | 349 | ||
| C/2009 Y1 | 2009 12 21.73660 | 12 12 11.54 | +45 31 09.4 | 349 | ||
| C/2009 Y1 | 2009 12 23.71527 | 12 12 54.12 | +46 01 46.1 | 17.9 | N | 372 |
| C/2009 Y1 | 2009 12 23.72288 | 12 12 54.21 | +46 01 55.1 | 17.8 | N | 372 |
| C/2009 Y1 | 2009 12 26.52810 | 12 13 48.57 | +46 46 39.8 | 18.9 | N | G68 |
| C/2009 Y1 | 2009 12 26.56953 | 12 13 49.17 | +46 47 20.7 | 19.0 | N | G68 |
| C/2009 Y1 | 2009 12 26.77148 | 12 13 52.87 | +46 50 38.2 | 18.0 | N | 372 |
| C/2009 Y1 | 2009 12 26.77913 | 12 13 53.06 | +46 50 45.1 | 18.1 | N | 372 |
| C/2009 Y1 | 2009 12 27.21774 | 12 14 00.64 | +46 57 55.1 | 19.0 | N | A77 |
| C/2009 Y1 | 2009 12 27.22239 | 12 14 00.74 | +46 57 59.3 | 19.1 | N | A77 |
