| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2017 S3 | 2018 07 20.10887 | 05 07 21.97 | +54 53 42.6 | 12.3 | N | A77 |
| C/2017 S3 | 2018 07 20.11095 | 05 07 23.08 | +54 53 37.6 | 11.4 | V | A77 |
| C/2017 S3 | 2018 07 20.11124 | 05 07 23.11 | +54 53 37.4 | 12.2 | N | A77 |
| C/2017 S3 | 2018 07 20.11361 | 05 07 24.28 | +54 53 31.9 | 12.2 | N | A77 |
| C/2017 S3 | 2018 07 20.11791 | 05 07 26.42 | +54 53 23.1 | 8.7 | T | A77 |
| C/2017 S3 | 2018 07 20.13117 | 05 07 33.08 | +54 52 52.9 | 11.8 | N | C86 |
| C/2017 S3 | 2018 07 20.13160 | 05 07 33.34 | +54 52 51.8 | 11.8 | N | C86 |
| C/2017 S3 | 2018 07 20.13245 | 05 07 33.73 | +54 52 49.6 | 11.8 | N | C86 |
| C/2017 S3 | 2018 07 20.44847 | 05 10 12.39 | +54 40 37.5 | 12.0 | N | H06 |
| C/2017 S3 | 2018 07 20.45396 | 05 10 15.14 | +54 40 24.9 | 12.1 | N | H06 |
| C/2017 S3 | 2018 07 20.75721 | 05 12 48.06 | +54 28 17.2 | 349 | ||
| C/2017 S3 | 2018 07 20.76013 | 05 12 49.54 | +54 28 10.2 | 349 | ||
| C/2017 S3 | 2018 07 20.76304 | 05 12 51.06 | +54 28 02.9 | 8.3 | T | 349 |
| C/2017 S3 | 2018 07 20.77176 | 05 12 55.54 | +54 27 41.1 | 367 | ||
| C/2017 S3 | 2018 07 20.77419 | 05 12 56.79 | +54 27 35.3 | 367 | ||
| C/2017 S3 | 2018 07 20.77662 | 05 12 58.01 | +54 27 29.4 | 8.7 | T | 367 |
| C/2017 S3 | 2018 07 21.44265 | 05 18 38.26 | +53 59 18.0 | H06 | ||
| C/2017 S3 | 2018 07 21.44925 | 05 18 41.59 | +53 59 01.6 | 12.5 | N | H06 |
| C/2017 S3 | 2018 07 21.45007 | 05 18 42.09 | +53 58 59.1 | 12.9 | V | H06 |
| C/2017 S3 | 2018 07 21.45346 | 05 18 43.81 | +53 58 50.3 | 12.5 | N | H06 |