| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2007 JA21 | 2007 05 25.03982 | 17 21 58.65 | +52 47 23.5 | 118 | ||
| C/2007 JA21 | 2007 05 25.04318 | 17 21 58.32 | +52 47 23.5 | 118 | ||
| C/2007 JA21 | 2007 05 25.71771 | 17 21 02.61 | +52 45 20.2 | 18.3 | T | 361 |
| C/2007 JA21 | 2007 05 30.02512 | 17 15 05.17 | +52 29 52.8 | J95 | ||
| C/2007 JA21 | 2007 05 30.02912 | 17 15 04.80 | +52 29 51.8 | J95 | ||
| C/2007 JA21 | 2007 05 30.03272 | 17 15 04.45 | +52 29 50.4 | 18.9 | N | J95 |
| C/2007 JA21 | 2007 06 06.36437 | 17 04 59.20 | +51 53 20.2 | 19.0 | N | 850 |
| C/2007 JA21 | 2007 06 06.38153 | 17 04 57.60 | +51 53 14.9 | 19.0 | N | 850 |
| C/2007 JA21 | 2007 06 07.15186 | 17 03 55.21 | +51 48 40.1 | 19.5 | N | 850 |
| C/2007 JA21 | 2007 06 07.19037 | 17 03 51.93 | +51 48 25.2 | 19.5 | N | 850 |
| C/2007 JA21 | 2007 06 07.21725 | 17 03 49.74 | +51 48 15.2 | 19.6 | N | 850 |
| C/2007 JA21 | 2007 06 08.26181 | 17 02 25.07 | +51 41 49.2 | 19.0 | T | 673 |
| C/2007 JA21 | 2007 06 08.26875 | 17 02 24.48 | +51 41 45.7 | 673 | ||
| C/2007 JA21 | 2007 06 08.27569 | 17 02 23.96 | +51 41 43.5 | 673 | ||
| C/2007 JA21 | 2007 06 08.28264 | 17 02 23.41 | +51 41 41.4 | 673 | ||
| C/2007 JA21 | 2007 06 10.90721 | 16 58 52.74 | +51 24 21.1 | 19.0 | N | 213 |
| C/2007 JA21 | 2007 06 10.90812 | 16 58 52.66 | +51 24 20.6 | 19.0 | N | 213 |
| C/2007 JA21 | 2007 06 10.90993 | 16 58 52.53 | +51 24 19.3 | 19.0 | N | 213 |
| C/2007 JA21 | 2007 06 11.70148 | 16 57 49.51 | +51 18 47.8 | 349 | ||
| C/2007 JA21 | 2007 06 11.70331 | 16 57 49.46 | +51 18 45.9 | 18.2 | T | 361 |