| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2007 JA21 | 2007 05 17.94678 | 17 31 37.21 | +53 02 22.9 | 18.8 | N | 204 |
| C/2007 JA21 | 2007 05 18.41490 | 17 30 59.47 | +53 01 45.1 | 18.7 | T | 703 |
| C/2007 JA21 | 2007 05 18.41984 | 17 30 59.11 | +53 01 46.4 | 18.9 | T | 703 |
| C/2007 JA21 | 2007 05 18.42477 | 17 30 58.78 | +53 01 44.9 | 18.7 | T | 703 |
| C/2007 JA21 | 2007 05 18.42970 | 17 30 58.24 | +53 01 44.5 | 18.7 | T | 703 |
| C/2007 JA21 | 2007 05 18.96869 | 17 30 15.10 | +53 00 55.2 | 18.6 | N | 213 |
| C/2007 JA21 | 2007 05 18.97098 | 17 30 14.92 | +53 00 55.0 | 18.6 | N | 213 |
| C/2007 JA21 | 2007 05 18.97633 | 17 30 14.50 | +53 00 54.5 | 18.6 | N | 213 |
| C/2007 JA21 | 2007 05 19.06193 | 17 30 07.38 | +53 00 47.5 | 18.8 | N | A03 |
| C/2007 JA21 | 2007 05 19.07677 | 17 30 06.29 | +53 00 45.9 | 18.5 | N | A03 |
| C/2007 JA21 | 2007 05 19.08785 | 17 30 05.44 | +53 00 44.8 | 18.4 | N | A03 |
| C/2007 JA21 | 2007 05 19.89874 | 17 29 00.04 | +52 59 23.3 | 18.0 | N | 157 |
| C/2007 JA21 | 2007 05 19.94081 | 17 28 56.61 | +52 59 19.4 | 18.5 | T | 215 |
| C/2007 JA21 | 2007 05 19.94187 | 17 28 56.52 | +52 59 19.3 | 18.6 | T | 215 |
| C/2007 JA21 | 2007 05 19.94292 | 17 28 56.43 | +52 59 19.1 | 18.4 | T | 215 |
| C/2007 JA21 | 2007 05 21.02560 | 17 27 28.34 | +52 57 17.6 | 19.1 | N | 118 |
| C/2007 JA21 | 2007 05 21.03087 | 17 27 27.70 | +52 57 17.1 | 18.4 | N | 118 |
| C/2007 JA21 | 2007 05 23.91777 | 17 23 31.33 | +52 50 32.4 | 19.3 | N | 213 |
| C/2007 JA21 | 2007 05 23.92012 | 17 23 31.13 | +52 50 32.1 | 19.2 | N | 213 |
| C/2007 JA21 | 2007 05 23.92248 | 17 23 30.94 | +52 50 31.7 | 19.2 | N | 213 |