| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 S4 | 1999 12 25.50722 | 02 26 33.58 | +33 25 04.3 | 897 | ||
| C/1999 S4 | 1999 12 25.51851 | 02 26 32.24 | +33 24 57.8 | 897 | ||
| C/1999 S4 | 1999 12 25.52251 | 02 26 31.75 | +33 24 55.3 | 14.1 | T | 897 |
| C/1999 S4 | 1999 12 26.41737 | 02 24 48.76 | +33 16 15.1 | 411 | ||
| C/1999 S4 | 1999 12 26.42282 | 02 24 48.09 | +33 16 11.7 | 411 | ||
| C/1999 S4 | 1999 12 26.42870 | 02 24 47.43 | +33 16 08.0 | 411 | ||
| C/1999 S4 | 1999 12 27.52201 | 02 22 43.51 | +33 05 27.5 | 15.0 | T | 351 |
| C/1999 S4 | 1999 12 27.53142 | 02 22 42.44 | +33 05 23.1 | 351 | ||
| C/1999 S4 | 1999 12 27.53675 | 02 22 41.87 | +33 05 18.2 | 351 | ||
| C/1999 S4 | 1999 12 27.56199 | 02 22 38.97 | +33 05 03.5 | 352 | ||
| C/1999 S4 | 1999 12 29.78526 | 02 18 35.72 | +32 43 08.3 | 958 | ||
| C/1999 S4 | 1999 12 29.81238 | 02 18 32.42 | +32 42 52.5 | 958 | ||
| C/1999 S4 | 1999 12 29.85005 | 02 18 28.61 | +32 42 31.0 | 958 | ||
| C/1999 S4 | 1999 12 30.42061 | 02 17 27.97 | +32 36 52.3 | 14.6 | T | 349 |
| C/1999 S4 | 1999 12 30.42338 | 02 17 27.65 | +32 36 50.9 | 349 | ||
| C/1999 S4 | 1999 12 30.43649 | 02 17 26.30 | +32 36 43.5 | 349 | ||
| C/1999 S4 | 1999 12 30.47690 | 02 17 22.10 | +32 36 19.0 | 14.7 | T | 351 |
| C/1999 S4 | 1999 12 30.48140 | 02 17 21.56 | +32 36 15.7 | 351 | ||
| C/1999 S4 | 1999 12 30.48582 | 02 17 21.18 | +32 36 13.8 | 351 | ||
| C/1999 S4 | 1999 12 30.97819 | 02 16 29.13 | +32 31 19.7 | 046 |