| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2019 S4 | 2021 05 17.37239 | 16 56 51.32 | +27 34 46.8 | 19.8 | G | G96 |
| C/2019 S4 | 2021 05 17.37812 | 16 56 50.94 | +27 34 45.1 | 20.1 | G | G96 |
| C/2019 S4 | 2021 05 17.38385 | 16 56 50.55 | +27 34 43.8 | 20.0 | G | G96 |
| C/2019 S4 | 2021 05 21.14766 | 16 52 35.80 | +27 21 14.4 | 19.9 | T | W62 |
| C/2019 S4 | 2021 05 21.15913 | 16 52 35.00 | +27 21 11.5 | 22.4 | T | W62 |
| C/2019 S4 | 2021 05 21.17060 | 16 52 34.19 | +27 21 08.8 | 19.6 | T | W62 |
| C/2019 S4 | 2021 06 03.55929 | 16 37 31.14 | +26 10 58.8 | 22.1 | T | 568 |
| C/2019 S4 | 2021 06 03.56119 | 16 37 31.00 | +26 10 58.0 | 22.4 | T | 568 |
| C/2019 S4 | 2021 09 12.22882 | 15 53 01.57 | +09 03 31.8 | 23.0 | T | 568 |
| C/2019 S4 | 2021 09 12.23281 | 15 53 01.64 | +09 03 29.6 | 23.1 | T | 568 |
| C/2019 S4 | 2021 09 12.23681 | 15 53 01.68 | +09 03 27.2 | 22.8 | T | 568 |
| C/2019 S4 | 2021 09 12.24079 | 15 53 01.72 | +09 03 25.0 | 23.9 | T | 568 |