| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 S4 | 2023 12 08.50385 | 04 45 57.12 | +41 46 59.5 | 18.1 | c | T05 |
| C/2021 S4 | 2023 12 08.50881 | 04 45 57.14 | +41 46 59.1 | 349 | ||
| C/2021 S4 | 2023 12 11.43105 | 04 44 40.08 | +41 46 20.1 | 17.0 | o | T08 |
| C/2021 S4 | 2023 12 11.43447 | 04 44 39.97 | +41 46 20.3 | 17.0 | o | T08 |
| C/2021 S4 | 2023 12 11.44264 | 04 44 39.75 | +41 46 19.7 | 17.0 | o | T08 |
| C/2021 S4 | 2023 12 11.45326 | 04 44 39.49 | +41 46 19.4 | 17.1 | o | T08 |
| C/2021 S4 | 2023 12 12.30892 | 04 44 17.17 | +41 46 01.6 | 17.5 | G | G96 |
| C/2021 S4 | 2023 12 12.31424 | 04 44 16.98 | +41 46 01.6 | 17.5 | G | G96 |
| C/2021 S4 | 2023 12 12.31954 | 04 44 16.83 | +41 46 01.2 | 17.7 | G | G96 |
| C/2021 S4 | 2023 12 12.32485 | 04 44 16.70 | +41 46 01.3 | 17.4 | G | G96 |
| C/2021 S4 | 2023 12 13.54167 | 04 43 45.13 | +41 45 29.7 | 903 | ||
| C/2021 S4 | 2023 12 13.54796 | 04 43 44.94 | +41 45 30.5 | 903 | ||
| C/2021 S4 | 2023 12 13.55422 | 04 43 44.74 | +41 45 30.0 | 17.8 | T | 903 |
| C/2021 S4 | 2023 12 13.83271 | 04 43 37.51 | +41 45 21.9 | 17.5 | G | I81 |
| C/2021 S4 | 2023 12 13.83559 | 04 43 37.54 | +41 45 21.6 | 17.7 | G | I81 |
| C/2021 S4 | 2023 12 13.83848 | 04 43 37.47 | +41 45 21.9 | 17.6 | G | I81 |
| C/2021 S4 | 2023 12 17.40278 | 04 42 06.46 | +41 43 18.3 | 17.0 | c | T05 |
| C/2021 S4 | 2023 12 17.40596 | 04 42 06.39 | +41 43 18.4 | 18.1 | c | T05 |
| C/2021 S4 | 2023 12 17.41232 | 04 42 06.25 | +41 43 18.0 | 17.8 | c | T05 |
| C/2021 S4 | 2023 12 17.42233 | 04 42 05.94 | +41 43 17.3 | 18.1 | c | T05 |