| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2012 B3 | 2012 03 31.63943 | 17 21 27.06 | +58 31 21.2 | 17.8 | T | 900 |
| C/2012 B3 | 2012 04 02.37867 | 17 20 11.24 | +59 20 08.0 | 18.9 | T | 704 |
| C/2012 B3 | 2012 04 02.38892 | 17 20 10.75 | +59 20 24.5 | 18.6 | T | 704 |
| C/2012 B3 | 2012 04 02.39916 | 17 20 10.22 | +59 20 41.9 | 18.7 | T | 704 |
| C/2012 B3 | 2012 04 02.40941 | 17 20 09.77 | +59 20 59.1 | 19.0 | T | 704 |
| C/2012 B3 | 2012 04 02.41963 | 17 20 09.42 | +59 21 17.3 | 19.2 | T | 704 |
| C/2012 B3 | 2012 04 09.01681 | 17 13 45.67 | +62 21 13.0 | 18.3 | N | 213 |
| C/2012 B3 | 2012 04 09.09100 | 17 13 40.38 | +62 23 11.9 | 18.1 | N | 213 |
| C/2012 B3 | 2012 04 09.10006 | 17 13 39.73 | +62 23 26.4 | 18.5 | N | 213 |
| C/2012 B3 | 2012 04 12.95026 | 17 08 35.12 | +64 03 47.8 | 17.9 | T | B42 |
| C/2012 B3 | 2012 04 12.95454 | 17 08 34.65 | +64 03 54.0 | 18.3 | T | B42 |
| C/2012 B3 | 2012 04 12.95882 | 17 08 34.34 | +64 04 01.5 | 17.8 | T | B42 |
| C/2012 B3 | 2012 04 12.96315 | 17 08 34.04 | +64 04 08.7 | 17.7 | T | B42 |
| C/2012 B3 | 2012 04 14.76320 | 17 05 48.60 | +64 49 38.8 | 900 | ||
| C/2012 B3 | 2012 04 14.76891 | 17 05 47.99 | +64 49 48.2 | 18.2 | T | 900 |
| C/2012 B3 | 2012 04 15.15262 | 17 05 10.88 | +64 59 22.6 | 17.9 | N | J24 |
| C/2012 B3 | 2012 04 15.15881 | 17 05 10.30 | +64 59 32.0 | 18.3 | N | J24 |
| C/2012 B3 | 2012 04 15.16453 | 17 05 09.52 | +64 59 40.5 | 17.8 | N | J24 |
| C/2012 B3 | 2012 04 24.84519 | 16 45 14.27 | +68 43 38.7 | C32 | ||
| C/2012 B3 | 2012 04 24.84907 | 16 45 13.61 | +68 43 44.1 | 18.2 | T | C32 |