| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1989 X1 | 1990 05 18.12986 | 21 42 12.45 | +22 14 26.0 | 006 | ||
| C/1989 X1 | 1990 05 18.13958 | 21 42 04.74 | +22 13 17.4 | 006 | ||
| C/1989 X1 | 1990 05 19.03832 | 21 30 00.61 | +20 21 02.9 | 047 | ||
| C/1989 X1 | 1990 05 19.04041 | 21 29 59.01 | +20 20 48.7 | 047 | ||
| C/1989 X1 | 1990 05 19.93507 | 21 17 24.68 | +18 17 38.9 | 056 | ||
| C/1989 X1 | 1990 05 19.94896 | 21 17 12.64 | +18 15 42.2 | 056 | ||
| C/1989 X1 | 1990 05 19.96285 | 21 17 00.75 | +18 13 41.9 | 056 | ||
| C/1989 X1 | 1990 05 20.02093 | 21 16 10.43 | +18 05 16.5 | 046 | ||
| C/1989 X1 | 1990 05 20.02162 | 21 16 09.77 | +18 05 12.3 | 046 | ||
| C/1989 X1 | 1990 05 20.83229 | 21 04 15.09 | +16 03 32.6 | 413 | ||
| C/1989 X1 | 1990 05 20.83442 | 21 04 13.17 | +16 03 12.5 | 413 | ||
| C/1989 X1 | 1990 05 20.97794 | 21 02 05.75 | +15 39 45.1 | 047 | ||
| C/1989 X1 | 1990 05 21.03690 | 21 01 12.72 | +15 30 27.3 | 061 | ||
| C/1989 X1 | 1990 05 21.03771 | 21 01 11.86 | +15 30 21.4 | 061 | ||
| C/1989 X1 | 1990 05 21.03831 | 21 01 11.28 | +15 30 14.7 | 061 | ||
| C/1989 X1 | 1990 05 21.03880 | 21 01 11.07 | +15 30 09.6 | 061 | ||
| C/1989 X1 | 1990 05 21.13056 | 20 59 47.07 | +15 15 27.8 | 006 | ||
| C/1989 X1 | 1990 05 21.14097 | 20 59 37.48 | +15 13 47.6 | 006 | ||
| C/1989 X1 | 1990 05 21.69326 | 20 51 14.12 | +13 42 52.1 | 381 | ||
| C/1989 X1 | 1990 05 21.69584 | 20 51 11.68 | +13 42 26.1 | 381 |