| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2017 S3 | 2018 06 27.90598 | 02 46 41.36 | +59 24 49.5 | 15.2 | N | B18 |
| C/2017 S3 | 2018 06 27.91014 | 02 46 42.50 | +59 24 49.7 | 15.3 | N | B18 |
| C/2017 S3 | 2018 06 27.91153 | 02 46 42.93 | +59 24 50.0 | 15.4 | N | B18 |
| C/2017 S3 | 2018 06 27.91292 | 02 46 43.30 | +59 24 50.2 | 15.3 | N | B18 |
| C/2017 S3 | 2018 06 27.93388 | 02 46 49.19 | +59 24 51.4 | 15.4 | N | B18 |
| C/2017 S3 | 2018 06 27.93527 | 02 46 49.54 | +59 24 51.6 | 15.3 | N | B18 |
| C/2017 S3 | 2018 06 27.93664 | 02 46 49.94 | +59 24 51.5 | 15.4 | N | B18 |
| C/2017 S3 | 2018 06 27.93803 | 02 46 50.35 | +59 24 51.6 | 15.4 | N | B18 |
| C/2017 S3 | 2018 06 27.93942 | 02 46 50.78 | +59 24 51.7 | 15.5 | N | B18 |
| C/2017 S3 | 2018 06 27.94081 | 02 46 51.13 | +59 24 51.8 | 15.3 | N | B18 |
| C/2017 S3 | 2018 06 27.94219 | 02 46 51.55 | +59 24 52.1 | 15.3 | N | B18 |
| C/2017 S3 | 2018 06 27.94358 | 02 46 51.93 | +59 24 52.1 | 15.4 | N | B18 |
| C/2017 S3 | 2018 06 27.94497 | 02 46 52.31 | +59 24 52.2 | 15.4 | N | B18 |
| C/2017 S3 | 2018 06 27.96721 | 02 46 58.59 | +59 24 53.6 | 15.4 | N | B18 |
| C/2017 S3 | 2018 06 27.96860 | 02 46 58.96 | +59 24 53.5 | 15.5 | N | B18 |
| C/2017 S3 | 2018 06 27.96999 | 02 46 59.38 | +59 24 53.8 | 15.4 | N | B18 |
| C/2017 S3 | 2018 06 27.97138 | 02 46 59.73 | +59 24 53.8 | 15.3 | N | B18 |
| C/2017 S3 | 2018 06 27.97277 | 02 47 00.14 | +59 24 53.9 | 15.2 | N | B18 |
| C/2017 S3 | 2018 06 27.97416 | 02 47 00.49 | +59 24 53.9 | 15.4 | N | B18 |
| C/2017 S3 | 2018 06 27.97554 | 02 47 00.92 | +59 24 53.9 | 15.4 | N | B18 |