| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2007 JA21 | 2007 05 11.30048 | 17 40 15.69 | +53 06 22.3 | 19.9 | N | 704 |
| C/2007 JA21 | 2007 05 11.30979 | 17 40 15.08 | +53 06 22.0 | 19.7 | N | 704 |
| C/2007 JA21 | 2007 05 11.31904 | 17 40 14.27 | +53 06 20.6 | 19.7 | N | 704 |
| C/2007 JA21 | 2007 05 12.40316 | 17 38 51.73 | +53 06 20.7 | 19.2 | N | 704 |
| C/2007 JA21 | 2007 05 12.41314 | 17 38 50.98 | +53 06 21.3 | 19.4 | N | 704 |
| C/2007 JA21 | 2007 05 12.42275 | 17 38 50.27 | +53 06 20.2 | 19.7 | N | 704 |
| C/2007 JA21 | 2007 05 12.43252 | 17 38 49.45 | +53 06 19.7 | 19.4 | N | 704 |
| C/2007 JA21 | 2007 05 12.44211 | 17 38 48.69 | +53 06 20.7 | 19.7 | N | 704 |
| C/2007 JA21 | 2007 05 12.82000 | 17 38 19.75 | +53 06 16.8 | 21.1 | T | D35 |
| C/2007 JA21 | 2007 05 12.82103 | 17 38 19.62 | +53 06 15.5 | 19.4 | T | D35 |
| C/2007 JA21 | 2007 05 12.82207 | 17 38 19.63 | +53 06 16.2 | 19.6 | T | D35 |
| C/2007 JA21 | 2007 05 12.88024 | 17 38 15.25 | +53 06 15.7 | 19.3 | N | B03 |
| C/2007 JA21 | 2007 05 12.88396 | 17 38 14.97 | +53 06 15.0 | 19.4 | N | B03 |
| C/2007 JA21 | 2007 05 12.88619 | 17 38 14.80 | +53 06 14.0 | 19.4 | N | A74 |
| C/2007 JA21 | 2007 05 12.88770 | 17 38 14.61 | +53 06 14.9 | 19.5 | N | B03 |
| C/2007 JA21 | 2007 05 12.89143 | 17 38 14.33 | +53 06 14.2 | 19.2 | N | B03 |
| C/2007 JA21 | 2007 05 12.89200 | 17 38 14.34 | +53 06 14.2 | 19.0 | N | A74 |
| C/2007 JA21 | 2007 05 12.89517 | 17 38 14.05 | +53 06 15.1 | 19.2 | N | B03 |
| C/2007 JA21 | 2007 05 12.89781 | 17 38 13.92 | +53 06 14.8 | 19.2 | N | A74 |
| C/2007 JA21 | 2007 05 13.34969 | 17 37 38.90 | +53 06 06.7 | 20.3 | N | 704 |