| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2012 X1 | 2013 04 23.93608 | 08 33 42.92 | +40 45 30.5 | 18.0 | N | I89 |
| C/2012 X1 | 2013 04 23.93882 | 08 33 42.96 | +40 45 29.3 | 18.6 | N | I89 |
| C/2012 X1 | 2013 04 23.94700 | 08 33 43.13 | +40 45 29.3 | 17.6 | N | 958 |
| C/2012 X1 | 2013 04 23.95533 | 08 33 43.24 | +40 45 28.2 | 17.4 | N | 958 |
| C/2012 X1 | 2013 04 23.96449 | 08 33 43.43 | +40 45 27.1 | 17.6 | N | 958 |
| C/2012 X1 | 2013 04 23.97293 | 08 33 43.54 | +40 45 26.7 | 17.6 | N | 958 |
| C/2012 X1 | 2013 04 24.91914 | 08 33 58.59 | +40 44 03.5 | 17.3 | N | J38 |
| C/2012 X1 | 2013 04 24.91967 | 08 33 58.60 | +40 44 02.9 | 17.5 | N | 958 |
| C/2012 X1 | 2013 04 24.92126 | 08 33 58.62 | +40 44 02.6 | 17.2 | N | J38 |
| C/2012 X1 | 2013 04 24.92684 | 08 33 58.75 | +40 44 02.1 | 17.4 | N | 958 |
| C/2012 X1 | 2013 04 24.92978 | 08 33 58.75 | +40 44 01.1 | 17.4 | N | J38 |
| C/2012 X1 | 2013 04 24.93400 | 08 33 58.83 | +40 44 01.7 | 17.5 | N | 958 |
| C/2012 X1 | 2013 04 24.94115 | 08 33 58.93 | +40 44 00.4 | 17.6 | N | 958 |
| C/2012 X1 | 2013 04 24.94829 | 08 33 59.11 | +40 44 00.1 | 17.6 | N | 958 |
| C/2012 X1 | 2013 04 27.51736 | 08 34 45.76 | +40 39 56.0 | Q24 | ||
| C/2012 X1 | 2013 04 27.52395 | 08 34 45.87 | +40 39 54.7 | 17.3 | N | Q24 |
| C/2012 X1 | 2013 04 27.90055 | 08 34 53.35 | +40 39 18.1 | 17.2 | N | C23 |
| C/2012 X1 | 2013 04 27.90343 | 08 34 53.34 | +40 39 18.3 | 17.1 | N | C23 |
| C/2012 X1 | 2013 04 27.90726 | 08 34 53.45 | +40 39 17.2 | 17.3 | N | 958 |
| C/2012 X1 | 2013 04 27.90921 | 08 34 53.47 | +40 39 16.7 | 16.7 | N | C23 |