| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 Y1 | 2023 05 19.70198 | 05 21 46.82 | -27 48 21.9 | 15.8 | c | M22 |
| C/2021 Y1 | 2023 05 19.70611 | 05 21 47.42 | -27 48 25.3 | 17.0 | c | M22 |
| C/2021 Y1 | 2023 05 19.70752 | 05 21 47.56 | -27 48 25.3 | 15.4 | c | M22 |
| C/2021 Y1 | 2023 05 19.71775 | 05 21 48.94 | -27 48 33.5 | 17.0 | c | M22 |
| C/2021 Y1 | 2023 05 19.71865 | 05 21 49.07 | -27 48 33.3 | 15.5 | c | M22 |
| C/2021 Y1 | 2023 05 20.95747 | 05 24 37.95 | -28 04 01.2 | 15.3 | o | W68 |
| C/2021 Y1 | 2023 05 20.96469 | 05 24 38.87 | -28 04 06.0 | 15.2 | o | W68 |
| C/2021 Y1 | 2023 05 20.97525 | 05 24 40.31 | -28 04 14.0 | 15.0 | o | W68 |
| C/2021 Y1 | 2023 06 04.94897 | 06 01 30.43 | -31 25 32.1 | 16.4 | o | W68 |
| C/2021 Y1 | 2023 06 04.95178 | 06 01 30.76 | -31 25 34.1 | 16.0 | o | W68 |
| C/2021 Y1 | 2023 06 04.95688 | 06 01 31.52 | -31 25 39.1 | 15.8 | o | W68 |
| C/2021 Y1 | 2023 06 04.96790 | 06 01 33.35 | -31 25 47.5 | 16.8 | o | W68 |
| C/2021 Y1 | 2023 06 16.95242 | 06 35 00.01 | -34 22 08.1 | 17.3 | c | W68 |
| C/2021 Y1 | 2023 06 16.95740 | 06 35 00.89 | -34 22 12.4 | 17.3 | c | W68 |
| C/2021 Y1 | 2023 06 16.96836 | 06 35 02.78 | -34 22 22.8 | 16.3 | c | W68 |