| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2007 JA21 | 2007 07 13.88693 | 16 23 01.89 | +45 47 43.6 | 19.1 | N | A77 |
| C/2007 JA21 | 2007 07 17.26690 | 16 20 28.99 | +45 03 40.4 | 19.0 | T | 673 |
| C/2007 JA21 | 2007 07 17.27384 | 16 20 28.64 | +45 03 34.8 | 673 | ||
| C/2007 JA21 | 2007 07 17.28183 | 16 20 28.21 | +45 03 28.2 | 673 | ||
| C/2007 JA21 | 2007 07 17.29097 | 16 20 27.87 | +45 03 21.0 | 673 | ||
| C/2007 JA21 | 2007 07 21.87809 | 16 17 22.56 | +44 01 47.1 | 118 | ||
| C/2007 JA21 | 2007 07 21.88466 | 16 17 22.38 | +44 01 41.6 | 118 | ||
| C/2007 JA21 | 2007 07 26.95933 | 16 14 26.57 | +42 51 39.2 | 19.0 | N | 204 |
| C/2007 JA21 | 2007 08 05.86711 | 16 10 08.10 | +40 31 02.7 | 118 | ||
| C/2007 JA21 | 2007 08 05.87539 | 16 10 07.81 | +40 30 55.9 | 118 | ||
| C/2007 JA21 | 2007 08 23.93972 | 16 06 38.65 | +36 11 09.2 | 19.1 | N | 204 |
| C/2007 JA21 | 2007 08 24.01513 | 16 06 38.45 | +36 10 05.6 | 204 | ||
| C/2007 JA21 | 2007 08 25.93839 | 16 06 34.04 | +35 42 46.0 | 19.1 | N | 204 |
| C/2007 JA21 | 2007 09 12.85352 | 16 08 10.97 | +31 36 53.3 | 19.2 | T | 215 |
| C/2007 JA21 | 2007 09 20.80408 | 16 10 02.90 | +29 54 19.9 | 19.7 | T | 215 |
| C/2007 JA21 | 2008 04 01.04648 | 17 13 01.36 | +16 57 37.3 | 20.0 | T | 461 |
| C/2007 JA21 | 2008 04 01.05321 | 17 13 01.26 | +16 57 37.4 | 461 | ||
| C/2007 JA21 | 2008 04 01.05998 | 17 13 01.12 | +16 57 38.1 | 461 | ||
| C/2007 JA21 | 2008 04 04.36200 | 17 11 50.32 | +17 01 22.9 | 19.9 | T | 704 |
| C/2007 JA21 | 2008 04 04.37344 | 17 11 50.08 | +17 01 22.2 | 20.2 | T | 704 |