| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2007 JA21 | 2007 06 11.70690 | 16 57 49.09 | +51 18 45.6 | 349 | ||
| C/2007 JA21 | 2007 06 11.71231 | 16 57 48.65 | +51 18 42.9 | 18.4 | T | 349 |
| C/2007 JA21 | 2007 06 13.24557 | 16 55 47.94 | +51 07 33.5 | 20.0 | N | 850 |
| C/2007 JA21 | 2007 06 13.24977 | 16 55 47.73 | +51 07 31.9 | 19.2 | T | 673 |
| C/2007 JA21 | 2007 06 13.25671 | 16 55 47.13 | +51 07 29.0 | 673 | ||
| C/2007 JA21 | 2007 06 13.26285 | 16 55 46.66 | +51 07 26.0 | 673 | ||
| C/2007 JA21 | 2007 06 13.26736 | 16 55 46.33 | +51 07 23.9 | 673 | ||
| C/2007 JA21 | 2007 06 13.27741 | 16 55 45.53 | +51 07 20.2 | 19.7 | N | 850 |
| C/2007 JA21 | 2007 06 15.26458 | 16 53 11.40 | +50 52 04.0 | 18.6 | T | 703 |
| C/2007 JA21 | 2007 06 15.27116 | 16 53 10.93 | +50 52 00.5 | 18.4 | T | 703 |
| C/2007 JA21 | 2007 06 15.27780 | 16 53 10.42 | +50 51 57.6 | 18.9 | T | 703 |
| C/2007 JA21 | 2007 06 15.28449 | 16 53 09.70 | +50 51 54.8 | 18.7 | T | 703 |
| C/2007 JA21 | 2007 06 16.96729 | 16 51 01.46 | +50 38 17.3 | 19.1 | N | 213 |
| C/2007 JA21 | 2007 06 16.96993 | 16 51 01.25 | +50 38 15.9 | 19.1 | N | 213 |
| C/2007 JA21 | 2007 06 16.97168 | 16 51 01.12 | +50 38 15.1 | 19.1 | N | 213 |
| C/2007 JA21 | 2007 06 18.94280 | 16 48 33.42 | +50 21 31.6 | 18.3 | T | 585 |
| C/2007 JA21 | 2007 06 18.94632 | 16 48 33.40 | +50 21 29.5 | 18.2 | T | 585 |
| C/2007 JA21 | 2007 06 18.96231 | 16 48 32.02 | +50 21 18.8 | 585 | ||
| C/2007 JA21 | 2007 06 18.96728 | 16 48 31.60 | +50 21 17.3 | 585 | ||
| C/2007 JA21 | 2007 06 19.96483 | 16 47 18.21 | +50 12 31.5 | 18.4 | N | A03 |