| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 Y1 | 2021 12 29.96934 | 01 21 58.17 | +55 31 19.7 | 19.6 | G | G40 |
| C/2021 Y1 | 2021 12 29.98559 | 01 21 58.18 | +55 31 07.8 | 19.2 | V | L06 |
| C/2021 Y1 | 2021 12 30.00362 | 01 21 58.10 | +55 30 53.9 | 19.2 | V | L06 |
| C/2021 Y1 | 2021 12 30.78497 | 01 21 57.88 | +55 21 37.0 | 18.4 | V | J57 |
| C/2021 Y1 | 2021 12 30.79926 | 01 21 57.92 | +55 21 26.9 | 18.8 | V | J57 |
| C/2021 Y1 | 2021 12 30.81043 | 01 21 57.89 | +55 21 19.3 | 17.6 | G | I93 |
| C/2021 Y1 | 2021 12 30.81256 | 01 21 57.88 | +55 21 17.2 | 18.7 | V | J57 |
| C/2021 Y1 | 2021 12 30.81987 | 01 21 57.88 | +55 21 12.3 | 19.0 | G | I93 |
| C/2021 Y1 | 2021 12 30.82913 | 01 21 57.89 | +55 21 05.3 | 18.4 | G | I93 |
| C/2021 Y1 | 2021 12 30.83283 | 01 21 57.86 | +55 21 02.3 | 18.0 | R | 233 |
| C/2021 Y1 | 2021 12 30.84236 | 01 21 57.80 | +55 20 55.5 | 20.1 | R | 233 |
| C/2021 Y1 | 2021 12 30.86538 | 01 21 57.89 | +55 20 39.0 | 17.6 | R | 233 |
| C/2021 Y1 | 2021 12 30.86807 | 01 21 57.87 | +55 20 37.4 | 104 | ||
| C/2021 Y1 | 2021 12 30.87372 | 01 21 57.87 | +55 20 31.5 | 17.8 | R | 233 |
| C/2021 Y1 | 2021 12 30.88343 | 01 21 57.92 | +55 20 26.2 | 18.4 | V | C77 |
| C/2021 Y1 | 2021 12 30.89559 | 01 21 57.79 | +55 20 17.9 | 18.7 | R | 104 |
| C/2021 Y1 | 2021 12 30.91000 | 01 21 57.82 | +55 20 07.3 | 18.5 | V | C77 |
| C/2021 Y1 | 2021 12 31.02919 | 01 21 57.84 | +55 18 41.6 | 204 | ||
| C/2021 Y1 | 2021 12 31.04048 | 01 21 57.85 | +55 18 33.6 | 19.0 | G | 204 |
| C/2021 Y1 | 2021 12 31.51114 | 01 21 58.25 | +55 12 58.7 | P87 |