| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1997 A1 | 1997 09 27.64873 | 06 42 21.73 | +55 29 18.5 | 17.9 | T | 897 |
| C/1997 A1 | 1997 09 27.68064 | 06 42 19.19 | +55 29 51.6 | 18.0 | T | 897 |
| C/1997 A1 | 1997 09 27.68493 | 06 42 18.90 | +55 29 54.6 | 897 | ||
| C/1997 A1 | 1997 09 29.77856 | 06 39 28.72 | +56 07 01.2 | 18.0 | T | 402 |
| C/1997 A1 | 1997 09 29.78273 | 06 39 28.43 | +56 07 06.1 | 402 | ||
| C/1997 A1 | 1997 09 29.78690 | 06 39 28.04 | +56 07 09.7 | 402 | ||
| C/1997 A1 | 1997 10 12.77951 | 06 13 37.13 | +60 05 50.5 | 18.1 | T | 360 |
| C/1997 A1 | 1997 10 12.78681 | 06 13 36.01 | +60 05 58.6 | 360 | ||
| C/1997 A1 | 1997 10 26.70201 | 05 24 15.08 | +63 59 27.0 | 17.7 | T | 897 |
| C/1997 A1 | 1997 10 26.73881 | 05 24 05.02 | +63 59 58.2 | 897 | ||
| C/1997 A1 | 1997 10 29.59345 | 05 10 33.84 | +64 37 04.1 | 566 | ||
| C/1997 A1 | 1997 10 29.60338 | 05 10 30.98 | +64 37 10.4 | 18.7 | N | 566 |
| C/1997 A1 | 1997 11 09.72465 | 04 08 33.30 | +65 54 24.9 | 18.0 | T | 360 |
| C/1997 A1 | 1997 11 09.72917 | 04 08 31.69 | +65 54 25.6 | 360 | ||
| C/1997 A1 | 1997 11 24.65419 | 02 41 45.10 | +64 04 41.7 | 18.8 | T | 867 |
| C/1997 A1 | 1997 11 24.66148 | 02 41 42.91 | +64 04 35.4 | 867 | ||
| C/1997 A1 | 1997 11 26.58988 | 02 31 58.49 | +63 33 48.7 | 19.4 | N | 566 |
| C/1997 A1 | 1997 12 24.48403 | 01 06 24.56 | +53 22 17.4 | 18.7 | T | 360 |
| C/1997 A1 | 1997 12 24.48889 | 01 06 24.19 | +53 22 10.5 | 360 | ||
| C/1997 A1 | 1997 12 24.49306 | 01 06 23.69 | +53 22 06.0 | 360 |