| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 S3 | 2024 04 30.03329 | 20 17 47.91 | +42 26 30.7 | 14.3 | N | M18 |
| C/2021 S3 | 2024 04 30.04403 | 20 17 48.71 | +42 26 53.4 | 14.2 | N | M18 |
| C/2021 S3 | 2024 04 30.05479 | 20 17 49.46 | +42 27 15.8 | 14.5 | N | M18 |
| C/2021 S3 | 2024 04 30.08747 | 20 17 51.90 | +42 28 23.6 | 13.4 | G | 970 |
| C/2021 S3 | 2024 04 30.11421 | 20 17 53.84 | +42 29 19.3 | 13.3 | G | 970 |
| C/2021 S3 | 2024 04 30.96481 | 20 18 56.10 | +42 58 30.6 | 14.0 | R | Z80 |
| C/2021 S3 | 2024 04 30.97037 | 20 18 56.49 | +42 58 41.6 | 13.9 | R | Z80 |
| C/2021 S3 | 2024 04 30.97598 | 20 18 56.96 | +42 58 53.9 | 13.9 | R | Z80 |
| C/2021 S3 | 2024 05 01.00022 | 20 18 58.58 | +42 59 39.6 | 13.0 | G | I81 |
| C/2021 S3 | 2024 05 01.00451 | 20 18 58.83 | +42 59 48.7 | 13.2 | G | I81 |
| C/2021 S3 | 2024 05 01.00601 | 20 18 59.11 | +42 59 56.7 | 13.1 | G | L54 |
| C/2021 S3 | 2024 05 01.00881 | 20 18 59.18 | +42 59 57.4 | 13.7 | G | I81 |
| C/2021 S3 | 2024 05 01.03198 | 20 19 00.93 | +43 00 50.1 | 11.8 | G | A98 |
| C/2021 S3 | 2024 05 01.03347 | 20 19 01.00 | +43 00 53.2 | 12.0 | G | A98 |
| C/2021 S3 | 2024 05 01.03495 | 20 19 01.12 | +43 00 56.5 | 12.1 | G | A98 |
| C/2021 S3 | 2024 05 01.03548 | 20 19 01.21 | +43 00 56.9 | 13.0 | G | L54 |
| C/2021 S3 | 2024 05 01.03717 | 20 19 01.27 | +43 01 01.0 | 12.2 | G | A98 |
| C/2021 S3 | 2024 05 01.03940 | 20 19 01.44 | +43 01 05.4 | 12.2 | G | A98 |
| C/2021 S3 | 2024 05 01.04105 | 20 19 01.60 | +43 01 08.1 | 14.4 | R | 215 |
| C/2021 S3 | 2024 05 01.04163 | 20 19 01.59 | +43 01 10.1 | 12.4 | G | A98 |