| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2021 P4 | 2021 08 29.65720 | 00 54 42.06 | +59 21 46.7 | Q11 | ||
| C/2021 P4 | 2021 08 29.66321 | 00 54 41.70 | +59 21 50.3 | Q11 | ||
| C/2021 P4 | 2021 09 02.01080 | 00 51 15.73 | +59 55 08.1 | 215 | ||
| C/2021 P4 | 2021 09 02.01235 | 00 51 15.62 | +59 55 09.3 | 20.0 | T | 215 |
| C/2021 P4 | 2021 09 02.01390 | 00 51 15.60 | +59 55 09.5 | 19.4 | T | 215 |
| C/2021 P4 | 2021 09 02.46310 | 00 50 45.80 | +59 59 31.6 | 658 | ||
| C/2021 P4 | 2021 09 02.46756 | 00 50 45.51 | +59 59 34.3 | 658 | ||
| C/2021 P4 | 2021 09 02.47202 | 00 50 45.21 | +59 59 36.7 | 658 | ||
| C/2021 P4 | 2021 09 02.47649 | 00 50 44.90 | +59 59 39.5 | 658 | ||
| C/2021 P4 | 2021 09 02.48095 | 00 50 44.59 | +59 59 42.2 | 658 | ||
| C/2021 P4 | 2021 09 02.90750 | 00 50 16.33 | +60 03 47.6 | 19.9 | T | K77 |
| C/2021 P4 | 2021 09 02.91810 | 00 50 15.52 | +60 03 53.9 | 19.7 | T | K77 |
| C/2021 P4 | 2021 09 03.01140 | 00 50 09.18 | +60 04 48.3 | 20.0 | T | K80 |
| C/2021 P4 | 2021 09 03.03845 | 00 50 07.34 | +60 05 03.6 | 19.2 | T | K80 |
| C/2021 P4 | 2021 09 03.11104 | 00 50 02.30 | +60 05 45.3 | 19.6 | T | K80 |
| C/2021 P4 | 2021 09 03.49757 | 00 49 36.07 | +60 09 28.2 | 19.9 | T | 568 |
| C/2021 P4 | 2021 09 03.49843 | 00 49 36.01 | +60 09 28.7 | 19.9 | T | 568 |
| C/2021 P4 | 2021 09 05.83755 | 00 46 49.15 | +60 31 15.5 | 18.3 | N | 157 |
| C/2021 P4 | 2021 09 05.85384 | 00 46 47.98 | +60 31 25.4 | 18.4 | N | 157 |
| C/2021 P4 | 2021 09 07.52972 | 00 44 40.36 | +60 46 29.9 | 19.0 | c | T05 |