| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 S3 | 2025 06 23.00926 | 23 43 33.94 | +42 23 47.3 | 18.6 | G | G00 |
| C/2021 S3 | 2025 06 26.74512 | 23 43 44.41 | +42 42 19.3 | 349 | ||
| C/2021 S3 | 2025 06 26.76315 | 23 43 44.39 | +42 42 24.2 | 17.5 | T | 349 |
| C/2021 S3 | 2025 06 29.05266 | 23 43 45.15 | +42 53 20.8 | 18.8 | G | L79 |
| C/2021 S3 | 2025 06 29.05566 | 23 43 45.16 | +42 53 19.8 | 18.6 | G | L79 |
| C/2021 S3 | 2025 06 29.05938 | 23 43 45.15 | +42 53 21.8 | 19.0 | G | L79 |
| C/2021 S3 | 2025 07 07.78653 | 23 43 09.03 | +43 31 46.6 | 18.4 | G | N94 |
| C/2021 S3 | 2025 07 07.79943 | 23 43 08.86 | +43 31 49.5 | 18.2 | G | N94 |
| C/2021 S3 | 2025 07 07.81233 | 23 43 08.87 | +43 31 51.5 | 18.4 | G | N94 |
| C/2021 S3 | 2025 07 13.51399 | 23 42 11.62 | +43 53 47.3 | 18.5 | o | T08 |
| C/2021 S3 | 2025 07 13.51584 | 23 42 11.67 | +43 53 48.7 | 18.8 | o | T08 |
| C/2021 S3 | 2025 07 13.52246 | 23 42 11.62 | +43 53 49.0 | 18.6 | o | T08 |
| C/2021 S3 | 2025 07 13.53015 | 23 42 11.43 | +43 53 50.9 | 18.8 | o | T08 |
| C/2021 S3 | 2025 07 21.49647 | 23 40 08.18 | +44 19 27.7 | 18.9 | o | T08 |
| C/2021 S3 | 2025 07 21.50014 | 23 40 08.09 | +44 19 27.8 | 18.8 | o | T08 |
| C/2021 S3 | 2025 07 21.50266 | 23 40 08.04 | +44 19 30.2 | 17.5 | o | T08 |
| C/2021 S3 | 2025 07 21.50592 | 23 40 08.04 | +44 19 29.6 | 19.3 | o | T08 |
| C/2021 S3 | 2025 07 24.05594 | 23 39 17.95 | +44 26 18.6 | 19.2 | G | Z10 |
| C/2021 S3 | 2025 07 24.06546 | 23 39 17.75 | +44 26 19.3 | 19.3 | G | Z10 |
| C/2021 S3 | 2025 07 24.09873 | 23 39 17.17 | +44 26 24.8 | 18.9 | G | W62 |