| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 S3 | 2024 06 12.03559 | 20 32 14.11 | +59 34 02.5 | 14.8 | G | 134 |
| C/2021 S3 | 2024 06 12.49944 | 20 31 56.26 | +59 40 19.8 | 12.0 | T | 349 |
| C/2021 S3 | 2024 06 12.50393 | 20 31 56.10 | +59 40 23.4 | 349 | ||
| C/2021 S3 | 2024 06 12.50844 | 20 31 55.90 | +59 40 27.3 | 349 | ||
| C/2021 S3 | 2024 06 12.53133 | 20 31 54.59 | +59 40 49.4 | 13.6 | o | T08 |
| C/2021 S3 | 2024 06 12.53333 | 20 31 54.51 | +59 40 51.1 | 13.7 | o | T08 |
| C/2021 S3 | 2024 06 12.53610 | 20 31 54.39 | +59 40 53.4 | 13.7 | o | T08 |
| C/2021 S3 | 2024 06 12.54155 | 20 31 54.17 | +59 40 57.9 | 13.8 | o | T08 |
| C/2021 S3 | 2024 06 13.00500 | 20 31 35.66 | +59 47 07.3 | 14.7 | G | Z10 |
| C/2021 S3 | 2024 06 13.01221 | 20 31 35.41 | +59 47 13.2 | 14.7 | G | Z10 |
| C/2021 S3 | 2024 06 13.02019 | 20 31 35.01 | +59 47 19.6 | 14.7 | G | Z10 |
| C/2021 S3 | 2024 06 13.51537 | 20 31 14.48 | +59 53 48.5 | D95 | ||
| C/2021 S3 | 2024 06 13.52044 | 20 31 14.25 | +59 53 52.6 | D95 | ||
| C/2021 S3 | 2024 06 13.52552 | 20 31 14.03 | +59 53 56.7 | 11.9 | T | D95 |
| C/2021 S3 | 2024 06 13.55729 | 20 31 12.73 | +59 54 22.4 | D88 | ||
| C/2021 S3 | 2024 06 13.56379 | 20 31 12.45 | +59 54 27.3 | 12.8 | T | D88 |
| C/2021 S3 | 2024 06 13.57038 | 20 31 12.15 | +59 54 32.5 | D88 | ||
| C/2021 S3 | 2024 06 13.74921 | 20 31 04.06 | +59 56 53.2 | 15.2 | N | 900 |
| C/2021 S3 | 2024 06 13.75621 | 20 31 03.70 | +59 56 58.6 | 14.7 | N | 900 |
| C/2021 S3 | 2024 06 13.93220 | 20 30 56.44 | +59 59 12.2 | 15.2 | N | M18 |