| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2017 S3 | 2018 06 06.06105 | 01 24 39.40 | +57 55 28.6 | 16.1 | N | C23 |
| C/2017 S3 | 2018 06 06.06393 | 01 24 39.94 | +57 55 28.8 | 16.5 | N | C23 |
| C/2017 S3 | 2018 06 07.69863 | 01 29 46.10 | +58 04 53.4 | 15.2 | T | 349 |
| C/2017 S3 | 2018 06 07.70512 | 01 29 47.30 | +58 04 55.4 | 349 | ||
| C/2017 S3 | 2018 06 11.00338 | 01 40 28.44 | +58 23 11.3 | 17.2 | N | A71 |
| C/2017 S3 | 2018 06 11.00632 | 01 40 29.09 | +58 23 11.8 | 17.5 | N | A71 |
| C/2017 S3 | 2018 06 11.00926 | 01 40 29.55 | +58 23 13.1 | 17.4 | N | A71 |
| C/2017 S3 | 2018 06 11.01222 | 01 40 30.27 | +58 23 14.1 | 16.9 | N | A71 |
| C/2017 S3 | 2018 06 11.01519 | 01 40 30.80 | +58 23 15.6 | 16.9 | N | A71 |
| C/2017 S3 | 2018 06 11.01815 | 01 40 31.27 | +58 23 16.4 | 16.8 | N | A71 |
| C/2017 S3 | 2018 06 11.40285 | 01 41 48.57 | +58 25 21.5 | H06 | ||
| C/2017 S3 | 2018 06 11.40524 | 01 41 49.06 | +58 25 22.0 | 16.0 | G | H06 |
| C/2017 S3 | 2018 06 14.00043 | 01 50 41.68 | +58 38 43.6 | 16.9 | N | C23 |
| C/2017 S3 | 2018 06 14.00331 | 01 50 42.28 | +58 38 45.4 | 15.5 | N | C23 |
| C/2017 S3 | 2018 06 14.00620 | 01 50 42.95 | +58 38 45.9 | 16.6 | N | C23 |
| C/2017 S3 | 2018 06 14.00909 | 01 50 43.48 | +58 38 47.2 | 16.7 | N | C23 |
| C/2017 S3 | 2018 06 19.01932 | 02 09 05.22 | +59 01 34.5 | 16.6 | N | C23 |
| C/2017 S3 | 2018 06 19.02232 | 02 09 05.87 | +59 01 35.2 | 16.4 | N | C23 |
| C/2017 S3 | 2018 06 19.02531 | 02 09 06.66 | +59 01 35.1 | 15.9 | N | C23 |
| C/2017 S3 | 2018 06 21.68324 | 02 19 36.38 | +59 11 24.0 | D81 |