| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1993 Y1 | 1994 04 24.83400 | 06 44 16.41 | +66 01 32.9 | 046 | ||
| C/1993 Y1 | 1994 04 24.83553 | 06 44 17.17 | +66 01 39.8 | 10.7 | T | 046 |
| C/1993 Y1 | 1994 04 28.79991 | 07 21 37.07 | +70 23 37.1 | 10.7 | T | 540 |
| C/1993 Y1 | 1994 04 28.80138 | 07 21 37.61 | +70 23 40.6 | 10.9 | T | 540 |
| C/1993 Y1 | 1994 04 28.80251 | 07 21 38.62 | +70 23 46.3 | 10.9 | T | 540 |
| C/1993 Y1 | 1994 04 28.80355 | 07 21 38.88 | +70 23 50.1 | 10.9 | T | 540 |
| C/1993 Y1 | 1994 04 29.48255 | 07 28 53.06 | +71 01 25.6 | 897 | ||
| C/1993 Y1 | 1994 04 29.49133 | 07 28 58.76 | +71 01 53.8 | 897 | ||
| C/1993 Y1 | 1994 04 29.84278 | 07 32 51.19 | +71 20 31.6 | 11.6 | T | 605 |
| C/1993 Y1 | 1994 04 29.84598 | 07 32 53.60 | +71 20 42.7 | 11.8 | T | 605 |
| C/1993 Y1 | 1994 04 30.82921 | 07 44 03.99 | +72 09 54.9 | 12.0 | T | 605 |
| C/1993 Y1 | 1994 04 30.83410 | 07 44 07.06 | +72 10 10.9 | 12.0 | T | 605 |
| C/1993 Y1 | 1994 05 01.83247 | 07 56 02.33 | +72 55 45.1 | 12.1 | T | 605 |
| C/1993 Y1 | 1994 05 01.83856 | 07 56 06.79 | +72 56 00.8 | 11.9 | T | 605 |
| C/1993 Y1 | 1994 05 02.83208 | 08 08 32.18 | +73 36 59.2 | 12.5 | T | 605 |
| C/1993 Y1 | 1994 05 02.83751 | 08 08 36.06 | +73 37 10.6 | 12.4 | T | 605 |
| C/1993 Y1 | 1994 05 03.20527 | 08 13 19.84 | +73 51 15.0 | 658 | ||
| C/1993 Y1 | 1994 05 03.20712 | 08 13 21.16 | +73 51 18.8 | 658 | ||
| C/1993 Y1 | 1994 05 03.20890 | 08 13 22.52 | +73 51 22.8 | 658 | ||
| C/1993 Y1 | 1994 05 03.21052 | 08 13 23.78 | +73 51 26.3 | 658 |