| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2017 S3 | 2018 03 23.79510 | 22 33 08.76 | +51 48 11.7 | 18.7 | T | Q11 |
| C/2017 S3 | 2018 03 24.14945 | 22 33 50.74 | +51 49 00.2 | 19.4 | N | I81 |
| C/2017 S3 | 2018 03 24.15306 | 22 33 51.24 | +51 49 01.7 | 17.5 | N | I81 |
| C/2017 S3 | 2018 03 24.15668 | 22 33 51.64 | +51 49 04.6 | 18.8 | N | I81 |
| C/2017 S3 | 2018 04 08.12313 | 23 03 52.88 | +52 35 23.3 | 18.9 | T | 215 |
| C/2017 S3 | 2018 04 08.12441 | 23 03 53.03 | +52 35 23.5 | 18.9 | T | 215 |
| C/2017 S3 | 2018 04 08.12570 | 23 03 53.10 | +52 35 24.5 | 19.1 | T | 215 |
| C/2017 S3 | 2018 04 12.46419 | 23 12 47.45 | +52 52 32.8 | H06 | ||
| C/2017 S3 | 2018 04 12.46659 | 23 12 47.77 | +52 52 33.3 | H06 | ||
| C/2017 S3 | 2018 04 12.46899 | 23 12 48.10 | +52 52 33.9 | 17.7 | T | H06 |
| C/2017 S3 | 2018 04 16.23129 | 23 20 37.07 | +53 08 39.4 | 17.8 | T | G40 |
| C/2017 S3 | 2018 04 16.23797 | 23 20 37.93 | +53 08 40.7 | 17.7 | T | G40 |
| C/2017 S3 | 2018 04 20.76042 | 23 30 09.41 | +53 29 26.9 | 17.2 | T | 349 |
| C/2017 S3 | 2018 04 20.77077 | 23 30 10.76 | +53 29 29.8 | 349 | ||
| C/2017 S3 | 2018 04 21.07331 | 23 30 49.24 | +53 30 54.3 | 18.2 | N | A71 |
| C/2017 S3 | 2018 04 21.07874 | 23 30 50.03 | +53 30 56.2 | 18.1 | N | A71 |
| C/2017 S3 | 2018 04 21.09192 | 23 30 51.64 | +53 30 59.8 | 17.2 | N | I81 |
| C/2017 S3 | 2018 04 21.09216 | 23 30 51.74 | +53 31 00.1 | 18.1 | N | A71 |
| C/2017 S3 | 2018 04 21.09554 | 23 30 52.06 | +53 31 01.6 | 17.0 | N | I81 |
| C/2017 S3 | 2018 04 21.09916 | 23 30 52.47 | +53 31 03.5 | 16.8 | N | I81 |