| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 S3 | 2025 03 09.19128 | 22 37 44.55 | +32 41 18.4 | 17.0 | R | C23 |
| C/2021 S3 | 2025 03 09.19503 | 22 37 44.88 | +32 41 18.0 | 16.9 | R | C23 |
| C/2021 S3 | 2025 03 09.19877 | 22 37 44.87 | +32 41 19.8 | 16.8 | R | C23 |
| C/2021 S3 | 2025 03 10.16502 | 22 38 43.99 | +32 45 18.7 | 17.9 | r | M09 |
| C/2021 S3 | 2025 03 10.17209 | 22 38 44.42 | +32 45 20.9 | 18.0 | r | M09 |
| C/2021 S3 | 2025 03 10.17915 | 22 38 45.04 | +32 45 22.0 | 18.4 | r | M09 |
| C/2021 S3 | 2025 03 19.14137 | 22 47 38.75 | +33 24 25.5 | 18.7 | r | M09 |
| C/2021 S3 | 2025 03 19.14843 | 22 47 39.28 | +33 24 27.7 | 17.8 | r | M09 |
| C/2021 S3 | 2025 03 19.15549 | 22 47 39.81 | +33 24 33.2 | 19.0 | r | M09 |
| C/2021 S3 | 2025 03 22.81573 | 22 51 10.05 | +33 41 42.0 | 349 | ||
| C/2021 S3 | 2025 03 22.82229 | 22 51 10.40 | +33 41 43.6 | 16.7 | T | 349 |
| C/2021 S3 | 2025 03 28.12196 | 22 56 06.29 | +34 07 42.7 | 17.8 | r | M09 |
| C/2021 S3 | 2025 03 28.12903 | 22 56 06.39 | +34 07 44.8 | 18.3 | r | M09 |
| C/2021 S3 | 2025 03 28.13611 | 22 56 07.02 | +34 07 48.0 | 18.0 | r | M09 |
| C/2021 S3 | 2025 04 02.09737 | 23 00 34.49 | +34 33 15.1 | 17.5 | r | M09 |
| C/2021 S3 | 2025 04 02.10444 | 23 00 34.93 | +34 33 17.3 | 17.9 | r | M09 |
| C/2021 S3 | 2025 04 02.11152 | 23 00 35.23 | +34 33 18.5 | 18.0 | r | M09 |
| C/2021 S3 | 2025 04 03.12532 | 23 01 28.66 | +34 38 40.1 | 18.5 | r | M09 |
| C/2021 S3 | 2025 04 03.13236 | 23 01 29.15 | +34 38 42.6 | 18.3 | r | M09 |
| C/2021 S3 | 2025 04 03.13940 | 23 01 29.46 | +34 38 42.0 | 18.0 | r | M09 |