| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 S3 | 2025 01 31.76709 | 21 57 27.92 | +31 02 41.1 | 16.9 | R | C23 |
| C/2021 S3 | 2025 01 31.77083 | 21 57 28.13 | +31 02 41.1 | 16.5 | R | C23 |
| C/2021 S3 | 2025 01 31.85114 | 21 57 33.81 | +31 02 48.4 | 17.9 | r | M09 |
| C/2021 S3 | 2025 01 31.85820 | 21 57 34.33 | +31 02 47.5 | 17.3 | r | M09 |
| C/2021 S3 | 2025 01 31.86526 | 21 57 34.76 | +31 02 47.3 | 17.0 | r | M09 |
| C/2021 S3 | 2025 02 02.23624 | 21 59 11.85 | +31 04 30.1 | M09 | ||
| C/2021 S3 | 2025 02 02.24331 | 21 59 12.36 | +31 04 30.9 | 18.9 | r | M09 |
| C/2021 S3 | 2025 02 02.25038 | 21 59 12.57 | +31 04 29.1 | 18.4 | r | M09 |
| C/2021 S3 | 2025 02 04.83150 | 22 02 13.21 | +31 08 03.1 | 17.4 | r | M09 |
| C/2021 S3 | 2025 02 04.83856 | 22 02 13.90 | +31 08 05.3 | 18.5 | r | M09 |
| C/2021 S3 | 2025 02 04.84562 | 22 02 14.33 | +31 08 06.5 | 17.1 | r | M09 |
| C/2021 S3 | 2025 02 06.75513 | 22 04 27.21 | +31 11 07.8 | 17.3 | R | A77 |
| C/2021 S3 | 2025 02 06.75982 | 22 04 27.74 | +31 11 09.4 | 16.6 | R | A77 |
| C/2021 S3 | 2025 02 06.76427 | 22 04 28.20 | +31 11 12.7 | 16.7 | R | A77 |
| 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 |