| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2017 S3 | 2018 07 18.96089 | 04 57 55.41 | +55 34 30.3 | 12.1 | N | C10 |
| C/2017 S3 | 2018 07 18.98495 | 04 58 07.18 | +55 33 42.5 | 12.1 | N | C10 |
| C/2017 S3 | 2018 07 18.98767 | 04 58 08.42 | +55 33 37.6 | 12.0 | N | 238 |
| C/2017 S3 | 2018 07 18.99041 | 04 58 09.77 | +55 33 32.1 | 11.9 | N | 238 |
| C/2017 S3 | 2018 07 18.99298 | 04 58 11.11 | +55 33 25.7 | 12.4 | R | B96 |
| C/2017 S3 | 2018 07 18.99374 | 04 58 11.49 | +55 33 24.5 | 12.4 | R | B96 |
| C/2017 S3 | 2018 07 18.99518 | 04 58 12.14 | +55 33 22.6 | 11.8 | N | 238 |
| C/2017 S3 | 2018 07 18.99910 | 04 58 14.12 | +55 33 13.5 | 12.4 | R | B96 |
| C/2017 S3 | 2018 07 19.00371 | 04 58 16.34 | +55 33 04.6 | 12.4 | R | B96 |
| C/2017 S3 | 2018 07 19.00830 | 04 58 18.75 | +55 32 54.8 | 12.4 | R | B96 |
| C/2017 S3 | 2018 07 19.01290 | 04 58 20.91 | +55 32 45.4 | 12.4 | R | B96 |
| C/2017 S3 | 2018 07 19.01721 | 04 58 23.03 | +55 32 36.6 | 12.6 | R | B96 |
| C/2017 S3 | 2018 07 19.02192 | 04 58 25.32 | +55 32 27.7 | 12.6 | R | B96 |
| C/2017 S3 | 2018 07 19.02404 | 04 58 26.34 | +55 32 23.9 | 8.3 | T | Z80 |
| C/2017 S3 | 2018 07 19.02889 | 04 58 28.66 | +55 32 13.2 | 12.0 | N | Z80 |
| C/2017 S3 | 2018 07 19.03374 | 04 58 31.10 | +55 32 03.8 | 12.1 | N | Z80 |
| C/2017 S3 | 2018 07 19.03535 | 04 58 32.08 | +55 32 01.9 | 13.2 | N | L05 |
| C/2017 S3 | 2018 07 19.03603 | 04 58 32.16 | +55 31 59.7 | 12.0 | R | B96 |
| C/2017 S3 | 2018 07 19.04050 | 04 58 34.42 | +55 31 50.5 | 11.6 | N | K02 |
| C/2017 S3 | 2018 07 19.04228 | 04 58 35.28 | +55 31 47.1 | 12.1 | N | Z80 |