| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1988 Y1 | 1989 01 03.48872 | 16 14 18.80 | -03 02 42.3 | 9.5 | T | 675 |
| C/1988 Y1 | 1989 01 03.85000 | 16 12 17.03 | -03 26 22.3 | 9.0 | T | 372 |
| C/1988 Y1 | 1989 01 03.85035 | 16 12 16.88 | -03 26 26.2 | 404 | ||
| C/1988 Y1 | 1989 01 03.85382 | 16 12 15.73 | -03 26 39.2 | 404 | ||
| C/1988 Y1 | 1989 01 03.86042 | 16 12 13.66 | -03 27 05.2 | 877 | ||
| C/1988 Y1 | 1989 01 04.82049 | 16 06 41.57 | -04 33 30.1 | 8.5 | T | 892 |
| C/1988 Y1 | 1989 01 04.82743 | 16 06 39.16 | -04 34 00.8 | 892 | ||
| C/1988 Y1 | 1989 01 04.84618 | 16 06 32.42 | -04 35 21.9 | 9.0 | T | 875 |
| C/1988 Y1 | 1989 01 04.85954 | 16 06 27.66 | -04 36 17.7 | 887 | ||
| C/1988 Y1 | 1989 01 04.86050 | 16 06 27.22 | -04 36 23.7 | 887 | ||
| C/1988 Y1 | 1989 01 04.86139 | 16 06 26.92 | -04 36 28.1 | 887 | ||
| C/1988 Y1 | 1989 01 04.86479 | 16 06 25.73 | -04 36 42.5 | 887 | ||
| C/1988 Y1 | 1989 01 04.86683 | 16 06 25.05 | -04 36 51.5 | 887 | ||
| C/1988 Y1 | 1989 01 04.87356 | 16 06 22.36 | -04 37 20.6 | 403 | ||
| C/1988 Y1 | 1989 01 05.21354 | 16 04 20.63 | -05 02 10.4 | 010 | ||
| C/1988 Y1 | 1989 01 05.23854 | 16 04 11.95 | -05 04 02.9 | 978 | ||
| C/1988 Y1 | 1989 01 05.25406 | 16 04 06.11 | -05 05 13.3 | 10.0 | T | 503 |
| C/1988 Y1 | 1989 01 05.25938 | 16 04 04.51 | -05 05 32.7 | 978 | ||
| C/1988 Y1 | 1989 01 05.82326 | 16 00 38.10 | -05 48 20.0 | 8.5 | T | 372 |
| C/1988 Y1 | 1989 01 05.84653 | 16 00 29.31 | -05 50 08.6 | 9.0 | T | 871 |