| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2017 S3 | 2018 07 05.03122 | 03 23 09.12 | +59 13 52.4 | 13.9 | N | A71 |
| C/2017 S3 | 2018 07 05.06492 | 03 23 20.56 | +59 13 43.6 | 13.3 | V | 104 |
| C/2017 S3 | 2018 07 05.07880 | 03 23 25.23 | +59 13 40.2 | 13.1 | V | 104 |
| C/2017 S3 | 2018 07 05.09342 | 03 23 30.07 | +59 13 37.3 | 13.0 | V | 104 |
| C/2017 S3 | 2018 07 05.09584 | 03 23 30.95 | +59 13 35.8 | 13.8 | V | A77 |
| C/2017 S3 | 2018 07 05.10110 | 03 23 32.70 | +59 13 34.7 | 13.9 | V | A77 |
| C/2017 S3 | 2018 07 05.10718 | 03 23 34.71 | +59 13 32.7 | 13.8 | V | A77 |
| C/2017 S3 | 2018 07 05.13214 | 03 23 43.23 | +59 13 26.1 | 13.4 | N | J01 |
| C/2017 S3 | 2018 07 05.13418 | 03 23 43.93 | +59 13 26.0 | 14.7 | R | I89 |
| C/2017 S3 | 2018 07 05.13609 | 03 23 44.57 | +59 13 25.7 | 14.6 | R | I89 |
| C/2017 S3 | 2018 07 05.13671 | 03 23 44.73 | +59 13 25.2 | 13.4 | N | J01 |
| C/2017 S3 | 2018 07 05.13817 | 03 23 45.28 | +59 13 25.0 | 14.1 | R | I89 |
| C/2017 S3 | 2018 07 05.13902 | 03 23 45.50 | +59 13 24.7 | 13.4 | N | J01 |
| C/2017 S3 | 2018 07 05.72840 | 03 27 05.74 | +59 10 29.6 | 14.4 | G | D35 |
| C/2017 S3 | 2018 07 05.72881 | 03 27 05.88 | +59 10 29.5 | 14.4 | G | D35 |
| C/2017 S3 | 2018 07 05.72918 | 03 27 05.96 | +59 10 29.8 | 14.4 | G | D35 |
| C/2017 S3 | 2018 07 05.73122 | 03 27 06.66 | +59 10 29.2 | 14.3 | G | D35 |
| C/2017 S3 | 2018 07 05.73218 | 03 27 06.99 | +59 10 28.9 | 14.4 | G | D35 |
| C/2017 S3 | 2018 07 05.73318 | 03 27 07.37 | +59 10 28.5 | 14.3 | G | D35 |
| C/2017 S3 | 2018 07 05.90444 | 03 28 06.10 | +59 09 34.5 | 14.2 | N | L04 |