| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2019 S4 | 2021 02 11.66180 | 17 42 10.00 | +25 08 38.7 | 22.0 | T | 568 |
| C/2019 S4 | 2021 02 11.66302 | 17 42 10.03 | +25 08 38.8 | 21.9 | T | 568 |
| C/2019 S4 | 2021 03 18.42713 | 17 42 52.72 | +26 32 52.3 | H06 | ||
| C/2019 S4 | 2021 03 18.43028 | 17 42 52.65 | +26 32 52.8 | H06 | ||
| C/2019 S4 | 2021 03 18.43344 | 17 42 52.60 | +26 32 53.5 | 20.1 | T | H06 |
| C/2019 S4 | 2021 04 01.49181 | 17 37 18.98 | +27 15 43.9 | 20.1 | G | G96 |
| C/2019 S4 | 2021 04 01.49803 | 17 37 18.76 | +27 15 44.9 | 20.0 | G | G96 |
| C/2019 S4 | 2021 04 01.50426 | 17 37 18.61 | +27 15 45.8 | 20.3 | G | G96 |
| C/2019 S4 | 2021 04 01.51051 | 17 37 18.40 | +27 15 46.5 | 20.0 | G | G96 |
| C/2019 S4 | 2021 04 05.58174 | 17 35 01.28 | +27 26 57.6 | 22.3 | T | 568 |
| C/2019 S4 | 2021 04 05.58434 | 17 35 01.19 | +27 26 58.0 | 22.1 | T | 568 |
| C/2019 S4 | 2021 04 05.58694 | 17 35 01.10 | +27 26 58.4 | 22.1 | T | 568 |
| C/2019 S4 | 2021 05 04.42286 | 17 10 55.41 | +28 00 35.9 | 20.1 | G | G96 |
| C/2019 S4 | 2021 05 04.42912 | 17 10 55.00 | +28 00 35.0 | 20.3 | G | G96 |
| C/2019 S4 | 2021 05 04.43540 | 17 10 54.66 | +28 00 35.6 | 20.2 | G | G96 |
| C/2019 S4 | 2021 05 04.44060 | 17 10 54.34 | +28 00 34.9 | 20.4 | G | G96 |
| C/2019 S4 | 2021 05 07.54417 | 17 07 38.90 | +27 57 10.6 | 20.7 | T | 568 |
| C/2019 S4 | 2021 05 07.54677 | 17 07 38.73 | +27 57 10.3 | 20.8 | T | 568 |
| C/2019 S4 | 2021 05 07.55005 | 17 07 38.52 | +27 57 10.2 | 20.7 | T | 568 |
| C/2019 S4 | 2021 05 17.36669 | 16 56 51.69 | +27 34 47.4 | 19.8 | G | G96 |