| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 S4 | 2023 01 25.26404 | 02 22 32.87 | +27 53 15.0 | 18.1 | o | T05 |
| C/2021 S4 | 2023 02 08.77557 | 02 26 51.36 | +27 59 56.4 | 18.3 | V | K77 |
| C/2021 S4 | 2023 02 08.78615 | 02 26 51.58 | +27 59 56.1 | 18.4 | V | K77 |
| C/2021 S4 | 2023 02 08.82409 | 02 26 52.47 | +27 59 58.0 | 17.7 | G | C95 |
| C/2021 S4 | 2023 02 08.83752 | 02 26 52.99 | +27 59 58.1 | 17.8 | G | C95 |
| C/2021 S4 | 2023 02 15.76843 | 02 29 37.56 | +28 06 30.0 | 18.6 | V | A77 |
| C/2021 S4 | 2023 02 15.78895 | 02 29 38.06 | +28 06 30.4 | 18.5 | V | A77 |
| C/2021 S4 | 2023 02 15.80702 | 02 29 38.58 | +28 06 32.7 | 17.9 | V | A77 |
| C/2021 S4 | 2023 02 16.48870 | 02 29 56.09 | +28 07 17.5 | 17.4 | T | Q11 |
| C/2021 S4 | 2023 02 16.49721 | 02 29 56.30 | +28 07 18.0 | Q11 | ||
| C/2021 S4 | 2023 02 16.50576 | 02 29 56.51 | +28 07 18.6 | Q11 | ||
| C/2021 S4 | 2023 02 23.41736 | 02 33 07.98 | +28 16 05.6 | D88 | ||
| C/2021 S4 | 2023 02 23.42067 | 02 33 08.05 | +28 16 06.2 | 17.8 | T | D88 |
| C/2021 S4 | 2023 07 28.45036 | 04 32 01.50 | +36 02 53.5 | U94 | ||
| C/2021 S4 | 2023 07 28.45367 | 04 32 01.64 | +36 02 54.2 | 17.9 | G | U94 |
| C/2021 S4 | 2023 08 03.59253 | 04 36 17.93 | +36 23 59.8 | 18.6 | o | T05 |
| C/2021 S4 | 2023 08 03.59662 | 04 36 17.66 | +36 24 00.6 | 17.7 | o | T05 |
| C/2021 S4 | 2023 08 03.61475 | 04 36 18.82 | +36 24 05.0 | 18.7 | o | T05 |
| C/2021 S4 | 2023 08 03.62158 | 04 36 19.07 | +36 24 07.0 | 17.8 | o | T05 |
| C/2021 S4 | 2023 08 22.60932 | 04 47 57.54 | +37 29 14.2 | 18.6 | c | T05 |