| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1989 X1 | 1990 05 28.67002 | 18 58 58.99 | -08 19 32.2 | 5.5 | T | 392 |
| C/1989 X1 | 1990 05 28.67627 | 18 58 52.95 | -08 20 40.1 | 392 | ||
| C/1989 X1 | 1990 05 28.70087 | 18 58 30.19 | -08 24 59.7 | 372 | ||
| C/1989 X1 | 1990 05 29.11840 | 18 52 02.56 | -09 39 08.1 | 006 | ||
| C/1989 X1 | 1990 05 29.13785 | 18 51 44.51 | -09 42 31.8 | 006 | ||
| C/1989 X1 | 1990 05 29.99898 | 18 38 49.61 | -12 07 52.4 | 046 | ||
| C/1989 X1 | 1990 05 30.00037 | 18 38 48.38 | -12 08 05.4 | 046 | ||
| C/1989 X1 | 1990 05 30.07156 | 18 37 45.08 | -12 19 39.3 | 026 | ||
| C/1989 X1 | 1990 05 30.08125 | 18 37 35.97 | -12 21 10.2 | 575 | ||
| C/1989 X1 | 1990 06 01.03472 | 18 10 12.58 | -17 10 30.2 | 026 | ||
| C/1989 X1 | 1990 06 02.73149 | 17 48 44.80 | -20 37 10.8 | 7.0 | T | 372 |
| C/1989 X1 | 1990 06 05.55249 | 17 18 07.32 | -24 59 14.7 | 897 | ||
| C/1989 X1 | 1990 06 05.55382 | 17 18 06.55 | -24 59 23.9 | 897 | ||
| C/1989 X1 | 1990 06 05.56453 | 17 17 59.96 | -25 00 11.7 | 897 | ||
| C/1989 X1 | 1990 06 05.56568 | 17 17 59.43 | -25 00 16.0 | 897 | ||
| C/1989 X1 | 1990 06 05.72691 | 17 16 23.89 | -25 12 31.7 | 7.5 | T | 372 |
| C/1989 X1 | 1990 06 11.53924 | 16 31 15.37 | -30 21 19.1 | 10.5 | T | 372 |
| C/1989 X1 | 1990 06 11.54132 | 16 31 14.60 | -30 21 23.6 | 372 | ||
| C/1989 X1 | 1990 06 13.45038 | 16 20 25.57 | -31 22 20.9 | 415 | ||
| C/1989 X1 | 1990 06 13.48785 | 16 20 13.50 | -31 23 23.3 | 413 |