| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2017 S3 | 2018 07 17.13945 | 04 43 28.63 | +56 29 20.7 | 12.6 | N | K14 |
| C/2017 S3 | 2018 07 17.14080 | 04 43 29.47 | +56 29 18.4 | 12.6 | N | K14 |
| C/2017 S3 | 2018 07 17.14214 | 04 43 30.06 | +56 29 16.7 | 12.6 | N | K14 |
| C/2017 S3 | 2018 07 17.19361 | 04 43 54.20 | +56 27 53.4 | 12.2 | N | G40 |
| C/2017 S3 | 2018 07 17.20059 | 04 43 57.43 | +56 27 41.9 | 12.2 | N | G40 |
| C/2017 S3 | 2018 07 17.20405 | 04 43 58.99 | +56 27 36.8 | 12.2 | N | G40 |
| C/2017 S3 | 2018 07 17.89378 | 04 49 22.60 | +56 07 58.5 | 12.2 | N | C10 |
| C/2017 S3 | 2018 07 17.91429 | 04 49 32.37 | +56 07 22.3 | 12.1 | N | C10 |
| C/2017 S3 | 2018 07 17.93031 | 04 49 40.29 | +56 06 54.5 | 11.2 | N | L51 |
| C/2017 S3 | 2018 07 17.93181 | 04 49 40.95 | +56 06 52.0 | 11.0 | N | L51 |
| C/2017 S3 | 2018 07 17.93627 | 04 49 43.10 | +56 06 44.1 | 11.0 | N | L51 |
| C/2017 S3 | 2018 07 17.93775 | 04 49 43.80 | +56 06 41.6 | 11.0 | N | L51 |
| C/2017 S3 | 2018 07 17.93831 | 04 49 43.79 | +56 06 39.2 | 11.1 | N | 970 |
| C/2017 S3 | 2018 07 17.94647 | 04 49 47.58 | +56 06 26.4 | 12.2 | N | C10 |
| C/2017 S3 | 2018 07 17.95732 | 04 49 52.88 | +56 06 05.6 | 11.1 | N | 970 |
| C/2017 S3 | 2018 07 17.96747 | 04 49 57.62 | +56 05 49.6 | 9.9 | T | C10 |
| C/2017 S3 | 2018 07 17.98965 | 04 50 08.39 | +56 05 08.6 | 12.1 | N | C10 |
| C/2017 S3 | 2018 07 18.00323 | 04 50 14.97 | +56 04 43.3 | 12.5 | R | B96 |
| C/2017 S3 | 2018 07 18.00630 | 04 50 16.40 | +56 04 38.4 | 12.5 | R | B96 |
| C/2017 S3 | 2018 07 18.01013 | 04 50 18.25 | +56 04 31.3 | 12.5 | R | B96 |