| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2007 JA21 | 2007 05 13.35915 | 17 37 38.37 | +53 06 07.4 | 19.8 | N | 704 |
| C/2007 JA21 | 2007 05 13.36877 | 17 37 37.56 | +53 06 07.6 | 19.8 | N | 704 |
| C/2007 JA21 | 2007 05 13.37823 | 17 37 36.90 | +53 06 07.5 | 19.9 | N | 704 |
| C/2007 JA21 | 2007 05 13.38279 | 17 37 36.41 | +53 06 06.9 | 711 | ||
| C/2007 JA21 | 2007 05 13.39559 | 17 37 35.59 | +53 06 07.3 | 711 | ||
| C/2007 JA21 | 2007 05 13.40836 | 17 37 34.43 | +53 06 06.4 | 711 | ||
| C/2007 JA21 | 2007 05 13.91641 | 17 36 55.25 | +53 05 54.1 | 18.7 | N | 473 |
| C/2007 JA21 | 2007 05 13.93877 | 17 36 53.46 | +53 05 53.6 | 18.7 | N | 473 |
| C/2007 JA21 | 2007 05 13.96401 | 17 36 51.51 | +53 05 53.3 | 18.8 | N | 473 |
| C/2007 JA21 | 2007 05 14.29398 | 17 36 25.89 | +53 05 43.7 | 18.8 | T | 673 |
| C/2007 JA21 | 2007 05 14.30451 | 17 36 25.06 | +53 05 43.4 | 673 | ||
| C/2007 JA21 | 2007 05 14.32407 | 17 36 23.52 | +53 05 42.7 | 673 | ||
| C/2007 JA21 | 2007 05 14.34132 | 17 36 22.18 | +53 05 42.0 | 673 | ||
| C/2007 JA21 | 2007 05 14.35914 | 17 36 20.77 | +53 05 41.2 | 673 | ||
| C/2007 JA21 | 2007 05 14.97688 | 17 35 32.54 | +53 05 18.5 | 18.6 | T | 561 |
| C/2007 JA21 | 2007 05 14.98050 | 17 35 32.14 | +53 05 17.0 | 18.9 | T | 561 |
| C/2007 JA21 | 2007 05 14.98412 | 17 35 31.90 | +53 05 18.5 | 19.4 | T | 561 |
| C/2007 JA21 | 2007 05 16.96147 | 17 32 55.89 | +53 03 33.8 | 18.9 | N | 213 |
| C/2007 JA21 | 2007 05 16.96386 | 17 32 55.69 | +53 03 33.4 | 19.0 | N | 213 |
| C/2007 JA21 | 2007 05 16.96719 | 17 32 55.40 | +53 03 33.1 | 19.2 | N | 213 |