| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2017 S3 | 2018 07 16.13248 | 04 35 46.08 | +56 54 59.0 | 11.7 | N | J01 |
| C/2017 S3 | 2018 07 16.13407 | 04 35 46.80 | +56 54 57.0 | 11.7 | N | J01 |
| C/2017 S3 | 2018 07 16.13931 | 04 35 49.21 | +56 54 49.6 | 11.7 | N | J01 |
| C/2017 S3 | 2018 07 16.19733 | 04 36 15.65 | +56 53 26.9 | 12.0 | N | G40 |
| C/2017 S3 | 2018 07 16.20594 | 04 36 19.56 | +56 53 15.0 | 12.0 | N | G40 |
| C/2017 S3 | 2018 07 16.20943 | 04 36 21.15 | +56 53 10.0 | 12.0 | N | G40 |
| C/2017 S3 | 2018 07 16.48400 | 04 38 26.33 | +56 46 23.6 | 12.9 | G | U69 |
| C/2017 S3 | 2018 07 16.48459 | 04 38 26.58 | +56 46 22.6 | 12.9 | G | U69 |
| C/2017 S3 | 2018 07 16.48521 | 04 38 26.85 | +56 46 21.9 | 12.9 | G | U69 |
| C/2017 S3 | 2018 07 16.48583 | 04 38 27.15 | +56 46 20.9 | 12.9 | G | U69 |
| C/2017 S3 | 2018 07 16.48637 | 04 38 27.42 | +56 46 20.1 | 10.6 | T | U69 |
| C/2017 S3 | 2018 07 16.86991 | 04 41 23.81 | +56 36 29.4 | 13.1 | G | D35 |
| C/2017 S3 | 2018 07 16.87082 | 04 41 24.23 | +56 36 28.0 | 13.1 | G | D35 |
| C/2017 S3 | 2018 07 16.87175 | 04 41 24.66 | +56 36 26.6 | 13.1 | G | D35 |
| C/2017 S3 | 2018 07 16.89966 | 04 41 36.94 | +56 35 39.8 | 12.6 | N | C10 |
| C/2017 S3 | 2018 07 16.91052 | 04 41 41.99 | +56 35 22.5 | 12.5 | N | C10 |
| C/2017 S3 | 2018 07 16.92194 | 04 41 47.38 | +56 35 04.8 | 12.5 | N | C10 |
| C/2017 S3 | 2018 07 16.93671 | 04 41 54.24 | +56 34 40.7 | 12.5 | N | C10 |
| C/2017 S3 | 2018 07 16.94810 | 04 41 59.50 | +56 34 23.7 | 12.5 | N | C10 |
| C/2017 S3 | 2018 07 16.95946 | 04 42 04.62 | +56 34 05.4 | 10.3 | T | C10 |