| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 S3 | 2024 04 23.06098 | 20 08 19.13 | +38 11 49.7 | 13.1 | V | Y89 |
| C/2021 S3 | 2024 04 23.11812 | 20 08 24.03 | +38 14 02.1 | 13.7 | G | K74 |
| C/2021 S3 | 2024 04 23.12029 | 20 08 24.21 | +38 14 07.3 | 13.7 | G | K74 |
| C/2021 S3 | 2024 04 23.12230 | 20 08 24.38 | +38 14 12.0 | 13.7 | G | K74 |
| C/2021 S3 | 2024 04 25.99738 | 20 12 30.74 | +40 02 17.2 | 13.2 | G | I81 |
| C/2021 S3 | 2024 04 26.00027 | 20 12 30.98 | +40 02 23.5 | 13.2 | G | I81 |
| C/2021 S3 | 2024 04 26.00315 | 20 12 31.22 | +40 02 30.0 | 13.2 | G | I81 |
| C/2021 S3 | 2024 04 26.08058 | 20 12 37.72 | +40 05 26.0 | 13.7 | G | G00 |
| C/2021 S3 | 2024 04 26.08442 | 20 12 38.03 | +40 05 34.6 | 13.8 | G | G00 |
| C/2021 S3 | 2024 04 26.08826 | 20 12 38.33 | +40 05 43.0 | 13.8 | G | G00 |
| C/2021 S3 | 2024 04 27.65697 | 20 14 45.52 | +41 02 43.5 | 14.1 | N | 900 |
| C/2021 S3 | 2024 04 27.66398 | 20 14 46.08 | +41 02 58.5 | 14.0 | N | 900 |
| C/2021 S3 | 2024 04 27.69295 | 20 14 48.31 | +41 04 01.5 | 11.7 | T | P87 |
| C/2021 S3 | 2024 04 27.69841 | 20 14 48.76 | +41 04 13.0 | P87 | ||
| C/2021 S3 | 2024 04 27.70384 | 20 14 49.20 | +41 04 25.2 | P87 | ||
| C/2021 S3 | 2024 04 27.93660 | 20 15 07.57 | +41 12 43.1 | 12.8 | V | M38 |
| C/2021 S3 | 2024 04 27.94377 | 20 15 08.13 | +41 12 58.7 | 12.9 | V | M38 |
| C/2021 S3 | 2024 04 27.95093 | 20 15 08.69 | +41 13 14.2 | 12.9 | V | M38 |
| C/2021 S3 | 2024 04 27.95259 | 20 15 08.96 | +41 13 15.8 | 13.7 | G | L92 |
| C/2021 S3 | 2024 04 27.95762 | 20 15 09.18 | +41 13 27.1 | 13.8 | G | G19 |