| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2019 Y4 | 2020 02 28.97981 | 11 06 02.15 | +57 59 08.3 | 15.6 | V | A71 |
| C/2019 Y4 | 2020 02 29.15159 | 11 05 28.03 | +58 05 10.7 | 14.0 | T | A77 |
| C/2019 Y4 | 2020 02 29.15734 | 11 05 26.91 | +58 05 22.9 | 15.9 | V | A77 |
| C/2019 Y4 | 2020 02 29.16307 | 11 05 25.81 | +58 05 34.0 | 16.0 | V | A77 |
| C/2019 Y4 | 2020 02 29.27952 | 11 05 03.70 | +58 09 40.0 | 14.1 | G | 703 |
| C/2019 Y4 | 2020 02 29.28489 | 11 05 02.62 | +58 09 51.6 | 14.0 | G | 703 |
| C/2019 Y4 | 2020 02 29.29027 | 11 05 01.55 | +58 10 04.7 | 703 | ||
| C/2019 Y4 | 2020 02 29.29885 | 11 04 59.81 | +58 10 21.0 | 13.9 | G | 703 |
| C/2019 Y4 | 2020 02 29.30674 | 11 04 58.14 | +58 10 37.9 | 14.8 | N | H06 |
| C/2019 Y4 | 2020 02 29.31402 | 11 04 56.79 | +58 10 53.6 | 14.8 | N | H06 |
| C/2019 Y4 | 2020 02 29.31644 | 11 04 56.27 | +58 10 58.7 | 14.8 | N | H06 |
| C/2019 Y4 | 2020 02 29.79738 | 11 03 20.71 | +58 27 41.9 | K81 | ||
| C/2019 Y4 | 2020 02 29.81003 | 11 03 18.05 | +58 28 08.4 | K81 | ||
| C/2019 Y4 | 2020 02 29.82065 | 11 03 15.93 | +58 28 31.0 | K81 | ||
| C/2019 Y4 | 2020 02 29.83124 | 11 03 13.73 | +58 28 53.3 | K81 | ||
| C/2019 Y4 | 2020 02 29.98793 | 11 02 41.39 | +58 34 22.3 | 14.6 | G | Z80 |
| C/2019 Y4 | 2020 02 29.99225 | 11 02 40.44 | +58 34 31.7 | 14.6 | G | Z80 |
| C/2019 Y4 | 2020 03 01.83339 | 10 59 45.41 | +59 03 38.3 | 14.9 | V | G20 |
| C/2019 Y4 | 2020 03 01.83917 | 10 59 44.08 | +59 03 50.3 | 15.0 | V | G20 |
| C/2019 Y4 | 2020 03 01.84476 | 10 59 42.95 | +59 04 01.9 | 14.9 | V | G20 |