| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 S3 | 2025 04 29.05973 | 23 21 44.07 | +37 05 10.0 | 19.2 | r | M09 |
| C/2021 S3 | 2025 04 29.06677 | 23 21 44.29 | +37 05 13.3 | 18.3 | r | M09 |
| C/2021 S3 | 2025 04 29.07381 | 23 21 44.73 | +37 05 14.8 | 18.5 | r | M09 |
| C/2021 S3 | 2025 04 30.09376 | 23 22 25.95 | +37 11 17.5 | 17.6 | R | C23 |
| C/2021 S3 | 2025 04 30.09825 | 23 22 26.32 | +37 11 19.0 | 17.8 | R | C23 |
| C/2021 S3 | 2025 04 30.70889 | 23 22 50.58 | +37 14 58.4 | D95 | ||
| C/2021 S3 | 2025 04 30.71426 | 23 22 50.76 | +37 15 00.8 | D95 | ||
| C/2021 S3 | 2025 04 30.72176 | 23 22 51.19 | +37 15 03.2 | 17.6 | T | D95 |
| C/2021 S3 | 2025 05 01.03231 | 23 23 03.25 | +37 16 55.1 | 18.5 | r | M09 |
| C/2021 S3 | 2025 05 01.03935 | 23 23 03.59 | +37 16 57.0 | 18.5 | r | M09 |
| C/2021 S3 | 2025 05 01.04639 | 23 23 03.92 | +37 16 59.1 | 18.6 | r | M09 |
| C/2021 S3 | 2025 05 02.07254 | 23 23 44.44 | +37 23 05.4 | 17.7 | R | 215 |
| C/2021 S3 | 2025 05 02.07384 | 23 23 44.46 | +37 23 06.8 | 17.7 | R | 215 |
| C/2021 S3 | 2025 05 02.07513 | 23 23 44.51 | +37 23 07.5 | 17.6 | R | 215 |
| C/2021 S3 | 2025 05 04.77058 | 23 25 27.90 | +37 39 17.1 | 17.0 | T | 349 |
| C/2021 S3 | 2025 05 04.77916 | 23 25 28.25 | +37 39 20.6 | 349 | ||
| C/2021 S3 | 2025 06 03.07389 | 23 39 35.18 | +40 34 31.3 | 17.3 | R | C23 |
| C/2021 S3 | 2025 06 03.07875 | 23 39 35.16 | +40 34 31.2 | 17.4 | R | C23 |
| C/2021 S3 | 2025 06 03.57448 | 23 39 44.81 | +40 37 27.1 | 18.9 | o | T08 |
| C/2021 S3 | 2025 06 03.57769 | 23 39 44.86 | +40 37 28.5 | 17.7 | o | T08 |