| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1989 X1 | 1990 04 20.94352 | 00 59 54.47 | +35 09 06.0 | 168 | ||
| C/1989 X1 | 1990 04 20.95208 | 00 59 51.71 | +35 09 15.5 | 168 | ||
| C/1989 X1 | 1990 04 21.93557 | 00 55 11.61 | +35 28 24.2 | 168 | ||
| C/1989 X1 | 1990 04 21.93837 | 00 55 10.89 | +35 28 35.7 | 168 | ||
| C/1989 X1 | 1990 04 22.93854 | 00 50 20.15 | +35 44 20.6 | 168 | ||
| C/1989 X1 | 1990 04 22.94227 | 00 50 19.44 | +35 44 27.0 | 168 | ||
| C/1989 X1 | 1990 04 23.14514 | 00 49 20.26 | +35 47 16.9 | 006 | ||
| C/1989 X1 | 1990 04 23.16597 | 00 49 14.22 | +35 47 34.2 | 006 | ||
| C/1989 X1 | 1990 04 23.37465 | 00 48 12.50 | +35 50 16.6 | 293 | ||
| C/1989 X1 | 1990 04 24.16736 | 00 44 17.54 | +35 59 12.7 | 006 | ||
| C/1989 X1 | 1990 04 24.17292 | 00 44 15.98 | +35 59 16.1 | 006 | ||
| C/1989 X1 | 1990 04 24.77176 | 00 41 16.30 | +36 04 40.0 | 381 | ||
| C/1989 X1 | 1990 04 24.78941 | 00 41 11.38 | +36 04 53.5 | 897 | ||
| C/1989 X1 | 1990 04 24.79155 | 00 41 10.80 | +36 04 53.9 | 897 | ||
| C/1989 X1 | 1990 04 24.80903 | 00 41 05.59 | +36 05 05.4 | 372 | ||
| C/1989 X1 | 1990 04 25.49375 | 00 37 38.07 | +36 09 49.3 | 675 | ||
| C/1989 X1 | 1990 04 25.76622 | 00 36 15.00 | +36 11 10.0 | 381 | ||
| C/1989 X1 | 1990 04 26.15139 | 00 34 16.89 | +36 13 01.7 | 006 | ||
| C/1989 X1 | 1990 04 26.16424 | 00 34 12.95 | +36 13 05.3 | 006 | ||
| C/1989 X1 | 1990 04 26.47083 | 00 32 38.27 | +36 14 11.5 | 688 |