| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 Y1 | 2022 03 06.78663 | 01 57 51.26 | +45 05 54.9 | 17.9 | T | A77 |
| C/2021 Y1 | 2022 03 06.79566 | 01 57 51.76 | +45 05 51.4 | 17.7 | T | A77 |
| C/2021 Y1 | 2022 03 08.10457 | 01 59 04.54 | +44 58 00.9 | 19.1 | G | 703 |
| C/2021 Y1 | 2022 03 08.10988 | 01 59 04.95 | +44 57 59.1 | 18.9 | G | 703 |
| C/2021 Y1 | 2022 03 08.11517 | 01 59 05.28 | +44 57 58.0 | 19.1 | G | 703 |
| C/2021 Y1 | 2022 03 10.43704 | 02 01 16.00 | +44 44 25.2 | 17.9 | T | 349 |
| C/2021 Y1 | 2022 03 10.44443 | 02 01 16.34 | +44 44 23.6 | D95 | ||
| C/2021 Y1 | 2022 03 10.44789 | 02 01 16.70 | +44 44 22.3 | 349 | ||
| C/2021 Y1 | 2022 03 10.44870 | 02 01 16.70 | +44 44 21.5 | 17.8 | T | D95 |
| C/2021 Y1 | 2022 03 19.78950 | 02 10 25.33 | +43 54 54.8 | 17.8 | G | C23 |
| C/2021 Y1 | 2022 03 19.79311 | 02 10 25.52 | +43 54 54.2 | 18.0 | G | C23 |
| C/2021 Y1 | 2022 03 19.79672 | 02 10 25.77 | +43 54 51.8 | 18.4 | G | C23 |
| C/2021 Y1 | 2022 03 24.91156 | 02 15 39.49 | +43 30 54.6 | 15.2 | G | I81 |
| C/2021 Y1 | 2022 03 24.91507 | 02 15 39.65 | +43 30 53.7 | 14.6 | G | I81 |
| C/2021 Y1 | 2022 03 24.91858 | 02 15 39.95 | +43 30 54.2 | 13.5 | G | I81 |
| C/2021 Y1 | 2022 03 25.11852 | 02 15 52.29 | +43 30 00.3 | H06 | ||
| C/2021 Y1 | 2022 03 25.12185 | 02 15 52.54 | +43 29 59.1 | 18.3 | G | H06 |
| C/2021 Y1 | 2022 07 16.47000 | 04 26 11.18 | +38 49 11.7 | 18.2 | r | I41 |
| C/2021 Y1 | 2022 07 16.47255 | 04 26 11.35 | +38 49 11.3 | 18.2 | r | I41 |
| C/2021 Y1 | 2022 07 16.47509 | 04 26 11.51 | +38 49 10.9 | 18.1 | r | I41 |