| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 Y1 | 2022 12 31.90627 | 03 32 56.27 | -03 09 29.3 | 14.9 | o | M22 |
| C/2021 Y1 | 2023 01 01.45729 | 03 32 20.22 | -03 22 31.8 | 14.0 | T | 903 |
| C/2021 Y1 | 2023 01 01.46300 | 03 32 19.77 | -03 22 39.4 | 903 | ||
| C/2021 Y1 | 2023 01 01.46743 | 03 32 19.49 | -03 22 45.2 | 903 | ||
| C/2021 Y1 | 2023 01 03.80764 | 03 29 52.38 | -04 16 16.1 | 15.3 | N | J59 |
| C/2021 Y1 | 2023 01 03.81466 | 03 29 51.93 | -04 16 26.0 | 15.3 | N | J59 |
| C/2021 Y1 | 2023 01 03.81748 | 03 29 51.74 | -04 16 28.8 | 15.4 | N | J59 |
| C/2021 Y1 | 2023 01 04.72989 | 03 28 57.43 | -04 36 42.4 | 15.3 | G | K83 |
| C/2021 Y1 | 2023 01 04.73590 | 03 28 57.08 | -04 36 50.3 | 15.5 | G | K83 |
| C/2021 Y1 | 2023 01 05.79543 | 03 27 56.14 | -04 59 51.5 | 15.6 | N | B56 |
| C/2021 Y1 | 2023 01 05.79872 | 03 27 55.96 | -04 59 55.9 | 15.5 | N | B56 |
| C/2021 Y1 | 2023 01 05.80200 | 03 27 55.73 | -04 59 59.2 | 15.5 | N | B56 |
| C/2021 Y1 | 2023 01 05.80528 | 03 27 55.59 | -05 00 04.0 | 15.4 | N | B56 |
| C/2021 Y1 | 2023 01 05.81103 | 03 27 55.31 | -05 00 09.9 | 15.4 | N | B56 |
| C/2021 Y1 | 2023 01 06.78766 | 03 27 01.14 | -05 20 52.8 | 15.6 | G | 221 |
| C/2021 Y1 | 2023 01 06.79010 | 03 27 01.01 | -05 20 56.1 | 15.7 | G | 221 |
| C/2021 Y1 | 2023 01 06.79242 | 03 27 00.88 | -05 20 59.1 | 15.6 | G | 221 |
| C/2021 Y1 | 2023 01 06.79474 | 03 27 00.74 | -05 21 01.9 | 15.7 | G | 221 |
| C/2021 Y1 | 2023 01 06.79704 | 03 27 00.60 | -05 21 05.1 | 15.8 | G | 221 |
| C/2021 Y1 | 2023 01 06.88210 | 03 26 55.90 | -05 22 56.9 | 16.0 | V | L74 |