| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2017 S3 | 2018 07 07.06451 | 03 34 51.99 | +59 02 40.0 | 14.4 | N | L12 |
| C/2017 S3 | 2018 07 07.06713 | 03 34 52.92 | +59 02 40.0 | 14.2 | V | A77 |
| C/2017 S3 | 2018 07 07.06802 | 03 34 53.31 | +59 02 39.3 | 14.2 | N | L12 |
| C/2017 S3 | 2018 07 07.07123 | 03 34 54.32 | +59 02 37.5 | 14.1 | N | Z80 |
| C/2017 S3 | 2018 07 07.07210 | 03 34 54.67 | +59 02 37.4 | 14.3 | N | Z80 |
| C/2017 S3 | 2018 07 07.10637 | 03 35 07.00 | +59 02 26.8 | 14.4 | N | 213 |
| C/2017 S3 | 2018 07 07.11465 | 03 35 09.84 | +59 02 23.1 | 14.5 | N | 213 |
| C/2017 S3 | 2018 07 07.12062 | 03 35 12.11 | +59 02 20.8 | 14.6 | N | 213 |
| C/2017 S3 | 2018 07 07.20413 | 03 35 41.88 | +59 01 46.9 | 14.0 | N | G40 |
| C/2017 S3 | 2018 07 07.20750 | 03 35 43.09 | +59 01 45.5 | 14.0 | N | G40 |
| C/2017 S3 | 2018 07 07.21111 | 03 35 44.38 | +59 01 43.6 | 14.0 | N | G40 |
| C/2017 S3 | 2018 07 07.21553 | 03 35 45.98 | +59 01 42.4 | 14.0 | N | G40 |
| C/2017 S3 | 2018 07 07.72310 | 03 38 47.97 | +58 57 59.1 | 14.9 | G | D35 |
| C/2017 S3 | 2018 07 07.81402 | 03 39 21.10 | +58 57 19.8 | 14.8 | G | D35 |
| C/2017 S3 | 2018 07 07.81494 | 03 39 21.44 | +58 57 19.3 | 14.8 | G | D35 |
| C/2017 S3 | 2018 07 07.84154 | 03 39 31.07 | +58 57 07.7 | 14.8 | G | D35 |
| C/2017 S3 | 2018 07 07.89257 | 03 39 49.66 | +58 56 45.5 | 15.0 | G | D35 |
| C/2017 S3 | 2018 07 07.89345 | 03 39 49.97 | +58 56 45.1 | 15.0 | G | D35 |
| C/2017 S3 | 2018 07 07.89434 | 03 39 50.29 | +58 56 44.9 | 15.0 | G | D35 |
| C/2017 S3 | 2018 07 08.01037 | 03 40 32.28 | +58 55 48.2 | 14.8 | R | B96 |