| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 Y1 | 2021 12 28.70825 | 01 22 00.81 | +55 46 22.5 | 19.2 | G | G02 |
| C/2021 Y1 | 2021 12 28.71468 | 01 22 00.79 | +55 46 18.0 | 19.0 | G | G02 |
| C/2021 Y1 | 2021 12 28.79342 | 01 22 00.48 | +55 45 21.6 | 19.0 | R | B74 |
| C/2021 Y1 | 2021 12 28.80816 | 01 22 00.42 | +55 45 10.5 | 19.1 | R | B74 |
| C/2021 Y1 | 2021 12 28.82752 | 01 22 00.15 | +55 44 56.9 | 18.9 | R | B74 |
| C/2021 Y1 | 2021 12 28.90714 | 01 22 00.15 | +55 44 00.2 | 19.0 | G | G40 |
| C/2021 Y1 | 2021 12 28.91799 | 01 22 00.12 | +55 43 52.4 | 18.6 | G | G40 |
| C/2021 Y1 | 2021 12 28.92949 | 01 21 59.99 | +55 43 44.3 | 18.9 | G | G40 |
| C/2021 Y1 | 2021 12 29.01886 | 01 21 59.91 | +55 42 40.0 | 19.1 | V | H21 |
| C/2021 Y1 | 2021 12 29.02166 | 01 21 59.89 | +55 42 38.0 | 19.2 | V | H21 |
| C/2021 Y1 | 2021 12 29.02446 | 01 21 59.89 | +55 42 36.0 | 19.2 | V | H21 |
| C/2021 Y1 | 2021 12 29.02726 | 01 21 59.88 | +55 42 34.0 | 19.3 | V | H21 |
| C/2021 Y1 | 2021 12 29.15482 | 01 21 59.50 | +55 41 02.9 | H06 | ||
| C/2021 Y1 | 2021 12 29.15923 | 01 21 59.45 | +55 40 59.5 | 18.9 | V | H06 |
| C/2021 Y1 | 2021 12 29.28252 | 01 21 59.22 | +55 39 30.9 | H06 | ||
| C/2021 Y1 | 2021 12 29.28669 | 01 21 59.20 | +55 39 28.0 | 18.9 | G | H06 |
| C/2021 Y1 | 2021 12 29.90049 | 01 21 58.28 | +55 32 08.5 | 19.4 | V | C77 |
| C/2021 Y1 | 2021 12 29.92274 | 01 21 58.23 | +55 31 53.8 | 19.3 | V | C77 |
| C/2021 Y1 | 2021 12 29.96083 | 01 21 58.10 | +55 31 25.9 | 19.5 | G | G40 |
| C/2021 Y1 | 2021 12 29.96756 | 01 21 58.23 | +55 31 21.1 | 18.7 | V | L06 |