| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2017 S3 | 2018 07 16.98240 | 04 42 15.50 | +56 33 30.1 | 13.2 | N | 238 |
| C/2017 S3 | 2018 07 16.98529 | 04 42 16.85 | +56 33 25.5 | 13.2 | N | 238 |
| C/2017 S3 | 2018 07 16.98587 | 04 42 17.17 | +56 33 23.6 | 12.3 | R | B96 |
| C/2017 S3 | 2018 07 16.98664 | 04 42 17.62 | +56 33 21.7 | 12.2 | R | B96 |
| C/2017 S3 | 2018 07 16.98817 | 04 42 18.30 | +56 33 19.2 | 12.3 | R | B96 |
| C/2017 S3 | 2018 07 16.98978 | 04 42 18.94 | +56 33 18.4 | 13.2 | N | 238 |
| C/2017 S3 | 2018 07 16.99131 | 04 42 19.82 | +56 33 14.5 | 12.3 | R | B96 |
| C/2017 S3 | 2018 07 16.99181 | 04 42 19.89 | +56 33 15.2 | 13.2 | N | 238 |
| C/2017 S3 | 2018 07 16.99611 | 04 42 21.90 | +56 33 07.3 | 12.4 | R | B96 |
| C/2017 S3 | 2018 07 17.00940 | 04 42 28.14 | +56 32 46.1 | 13.5 | G | J95 |
| C/2017 S3 | 2018 07 17.01306 | 04 42 29.85 | +56 32 40.1 | 13.4 | G | J95 |
| C/2017 S3 | 2018 07 17.01526 | 04 42 30.76 | +56 32 36.9 | 8.5 | T | Z80 |
| C/2017 S3 | 2018 07 17.01672 | 04 42 31.53 | +56 32 34.5 | 13.5 | G | J95 |
| C/2017 S3 | 2018 07 17.01696 | 04 42 31.67 | +56 32 34.2 | 12.3 | N | Z80 |
| C/2017 S3 | 2018 07 17.01854 | 04 42 32.38 | +56 32 32.1 | 12.3 | N | Z80 |
| C/2017 S3 | 2018 07 17.02011 | 04 42 33.04 | +56 32 29.7 | 12.3 | N | Z80 |
| C/2017 S3 | 2018 07 17.02180 | 04 42 33.83 | +56 32 26.3 | 12.3 | N | Z80 |
| C/2017 S3 | 2018 07 17.02337 | 04 42 34.57 | +56 32 24.6 | 12.3 | N | Z80 |
| C/2017 S3 | 2018 07 17.02495 | 04 42 35.39 | +56 32 22.1 | 12.3 | N | Z80 |
| C/2017 S3 | 2018 07 17.02664 | 04 42 36.12 | +56 32 19.1 | 12.3 | N | Z80 |