| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2017 S3 | 2018 07 18.01473 | 04 50 20.40 | +56 04 23.5 | 12.4 | R | B96 |
| C/2017 S3 | 2018 07 18.01610 | 04 50 21.10 | +56 04 21.0 | 12.3 | N | C23 |
| C/2017 S3 | 2018 07 18.01932 | 04 50 22.68 | +56 04 15.0 | 12.5 | R | B96 |
| C/2017 S3 | 2018 07 18.02393 | 04 50 24.85 | +56 04 07.0 | 12.5 | R | B96 |
| C/2017 S3 | 2018 07 18.02883 | 04 50 27.14 | +56 03 58.5 | 11.6 | N | C23 |
| C/2017 S3 | 2018 07 18.02922 | 04 50 27.37 | +56 03 57.6 | 12.6 | R | B96 |
| C/2017 S3 | 2018 07 18.02929 | 04 50 27.44 | +56 03 56.9 | 11.9 | N | L12 |
| C/2017 S3 | 2018 07 18.03508 | 04 50 30.16 | +56 03 47.2 | 12.6 | R | B96 |
| C/2017 S3 | 2018 07 18.03635 | 04 50 30.84 | +56 03 44.6 | 12.1 | N | L12 |
| C/2017 S3 | 2018 07 18.04340 | 04 50 34.44 | +56 03 31.0 | 12.1 | N | L12 |
| C/2017 S3 | 2018 07 18.04407 | 04 50 34.38 | +56 03 31.6 | 10.8 | R | B96 |
| C/2017 S3 | 2018 07 18.04455 | 04 50 34.65 | +56 03 30.7 | 12.3 | N | C23 |
| C/2017 S3 | 2018 07 18.05307 | 04 50 38.70 | +56 03 15.2 | 10.8 | R | B96 |
| C/2017 S3 | 2018 07 18.06375 | 04 50 43.96 | +56 02 56.4 | 12.6 | N | A77 |
| C/2017 S3 | 2018 07 18.06588 | 04 50 44.97 | +56 02 52.2 | 12.8 | N | A77 |
| C/2017 S3 | 2018 07 18.06730 | 04 50 45.69 | +56 02 50.0 | 13.4 | N | L05 |
| C/2017 S3 | 2018 07 18.06825 | 04 50 46.09 | +56 02 47.9 | 12.7 | N | A77 |
| C/2017 S3 | 2018 07 18.07063 | 04 50 47.21 | +56 02 44.2 | 12.7 | N | A77 |
| C/2017 S3 | 2018 07 18.07300 | 04 50 48.40 | +56 02 39.9 | 12.7 | N | A77 |
| C/2017 S3 | 2018 07 18.07547 | 04 50 49.58 | +56 02 35.2 | 12.7 | N | A77 |