| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2017 S3 | 2018 07 02.01316 | 03 06 53.57 | +59 23 06.5 | 14.1 | N | B18 |
| C/2017 S3 | 2018 07 02.01351 | 03 06 53.71 | +59 23 06.2 | 14.2 | N | B18 |
| C/2017 S3 | 2018 07 02.01384 | 03 06 53.84 | +59 23 07.0 | 14.1 | N | B18 |
| C/2017 S3 | 2018 07 02.40380 | 03 08 55.62 | +59 22 21.1 | 14.2 | G | H06 |
| C/2017 S3 | 2018 07 02.40463 | 03 08 55.95 | +59 22 20.4 | 14.1 | G | H06 |
| C/2017 S3 | 2018 07 02.40545 | 03 08 56.12 | +59 22 20.8 | 14.1 | G | H06 |
| C/2017 S3 | 2018 07 02.40626 | 03 08 56.39 | +59 22 20.6 | 14.1 | G | H06 |
| C/2017 S3 | 2018 07 02.40708 | 03 08 56.64 | +59 22 20.5 | 11.8 | T | H06 |
| C/2017 S3 | 2018 07 02.72773 | 03 10 37.64 | +59 21 37.6 | 10.2 | T | 349 |
| C/2017 S3 | 2018 07 02.73154 | 03 10 38.82 | +59 21 37.3 | 349 | ||
| C/2017 S3 | 2018 07 02.73535 | 03 10 40.04 | +59 21 36.7 | 349 | ||
| C/2017 S3 | 2018 07 02.93585 | 03 11 43.52 | +59 21 04.4 | 14.7 | N | A71 |
| C/2017 S3 | 2018 07 02.93952 | 03 11 44.67 | +59 21 04.2 | 14.7 | N | A71 |
| C/2017 S3 | 2018 07 02.94319 | 03 11 45.86 | +59 21 03.3 | 14.7 | N | A71 |
| C/2017 S3 | 2018 07 02.94686 | 03 11 47.03 | +59 21 02.7 | 14.7 | N | A71 |
| C/2017 S3 | 2018 07 02.95053 | 03 11 48.26 | +59 21 02.5 | 14.8 | N | A71 |
| C/2017 S3 | 2018 07 02.95420 | 03 11 49.39 | +59 21 01.8 | 14.8 | N | A71 |
| C/2017 S3 | 2018 07 02.95788 | 03 11 50.58 | +59 21 01.5 | 14.7 | N | A71 |
| C/2017 S3 | 2018 07 02.96155 | 03 11 51.71 | +59 21 00.7 | 14.6 | N | A71 |
| C/2017 S3 | 2018 07 02.99933 | 03 12 03.89 | +59 20 55.1 | 14.9 | G | C47 |