| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 Y1 | 2021 12 26.98227 | 01 22 07.25 | +56 07 00.2 | 19.9 | G | Z31 |
| C/2021 Y1 | 2021 12 26.98466 | 01 22 07.23 | +56 06 58.6 | 19.8 | G | Z31 |
| C/2021 Y1 | 2021 12 26.98705 | 01 22 07.22 | +56 06 56.8 | 20.0 | G | Z31 |
| C/2021 Y1 | 2021 12 26.98944 | 01 22 07.23 | +56 06 55.1 | 19.0 | G | Z31 |
| C/2021 Y1 | 2021 12 27.07845 | 01 22 07.07 | +56 05 51.3 | 19.1 | G | I52 |
| C/2021 Y1 | 2021 12 27.08572 | 01 22 06.96 | +56 05 45.9 | 19.1 | G | I52 |
| C/2021 Y1 | 2021 12 27.09315 | 01 22 06.90 | +56 05 40.4 | 18.9 | G | I52 |
| C/2021 Y1 | 2021 12 27.55933 | 01 22 04.59 | +56 00 05.1 | 18.6 | R | P93 |
| C/2021 Y1 | 2021 12 27.56098 | 01 22 04.54 | +56 00 04.0 | 18.6 | R | P93 |
| C/2021 Y1 | 2021 12 27.56269 | 01 22 04.48 | +56 00 03.5 | 18.6 | R | P93 |
| C/2021 Y1 | 2021 12 27.56433 | 01 22 04.51 | +56 00 02.3 | 18.5 | R | P93 |
| C/2021 Y1 | 2021 12 27.56598 | 01 22 04.59 | +56 00 01.4 | 18.6 | R | P93 |
| C/2021 Y1 | 2021 12 27.70028 | 01 22 04.37 | +55 58 25.2 | 246 | ||
| C/2021 Y1 | 2021 12 27.70532 | 01 22 04.16 | +55 58 21.9 | 246 | ||
| C/2021 Y1 | 2021 12 27.70590 | 01 22 04.23 | +55 58 21.3 | 246 | ||
| C/2021 Y1 | 2021 12 27.70609 | 01 22 04.22 | +55 58 21.1 | 246 | ||
| C/2021 Y1 | 2021 12 27.77735 | 01 22 03.77 | +55 57 30.2 | 19.0 | G | J57 |
| C/2021 Y1 | 2021 12 27.78619 | 01 22 03.75 | +55 57 23.8 | 19.0 | G | J57 |
| C/2021 Y1 | 2021 12 27.79601 | 01 22 03.69 | +55 57 16.7 | 18.8 | G | J57 |
| C/2021 Y1 | 2021 12 28.70185 | 01 22 00.87 | +55 46 27.7 | 19.1 | G | G02 |