| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 S4 | 2025 03 30.24832 | 07 14 48.28 | +39 33 21.8 | 19.1 | o | T08 |
| C/2021 S4 | 2025 03 30.25295 | 07 14 48.17 | +39 33 22.1 | 19.0 | o | T08 |
| C/2021 S4 | 2026 02 15.60492 | 09 13 44.94 | +32 40 39.3 | 19.9 | V | Q14 |
| C/2021 S4 | 2026 02 15.61132 | 09 13 44.52 | +32 40 38.4 | 20.4 | V | Q14 |
| C/2021 S4 | 2026 02 23.33123 | 09 11 05.01 | +32 40 24.6 | V00 | ||
| C/2021 S4 | 2026 02 23.33685 | 09 11 04.87 | +32 40 25.0 | V00 | ||
| C/2021 S4 | 2026 02 23.34245 | 09 11 04.72 | +32 40 25.1 | 20.6 | G | V00 |
| C/2021 S4 | 2026 02 23.34804 | 09 11 04.52 | +32 40 25.4 | V00 |