| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 S4 | 1999 12 10.92282 | 02 58 03.31 | +35 32 15.1 | 14.6 | T | 504 |
| C/1999 S4 | 1999 12 10.92650 | 02 58 02.70 | +35 32 13.9 | 15.4 | T | 504 |
| C/1999 S4 | 1999 12 10.92927 | 02 58 02.38 | +35 32 12.4 | 15.1 | T | 504 |
| C/1999 S4 | 1999 12 11.49308 | 02 56 43.45 | +35 28 02.8 | 15.0 | T | 900 |
| C/1999 S4 | 1999 12 11.50576 | 02 56 41.65 | +35 27 56.8 | 900 | ||
| C/1999 S4 | 1999 12 11.89541 | 02 55 47.43 | +35 24 59.6 | 958 | ||
| C/1999 S4 | 1999 12 11.94863 | 02 55 39.84 | +35 24 36.3 | 958 | ||
| C/1999 S4 | 1999 12 11.99028 | 02 55 34.15 | +35 24 17.7 | 958 | ||
| C/1999 S4 | 1999 12 12.23090 | 02 55 00.86 | +35 22 25.4 | 16.6 | T | 704 |
| C/1999 S4 | 1999 12 12.25694 | 02 54 57.30 | +35 22 14.0 | 16.7 | T | 704 |
| C/1999 S4 | 1999 12 12.28486 | 02 54 53.43 | +35 21 58.4 | 16.7 | T | 704 |
| C/1999 S4 | 1999 12 12.31046 | 02 54 49.80 | +35 21 49.8 | 16.9 | T | 704 |
| C/1999 S4 | 1999 12 12.32825 | 02 54 47.19 | +35 21 41.5 | 16.8 | T | 704 |
| C/1999 S4 | 1999 12 12.93682 | 02 53 22.92 | +35 16 58.8 | 958 | ||
| C/1999 S4 | 1999 12 15.51396 | 02 47 31.65 | +34 56 08.1 | 15.0 | T | 355 |
| C/1999 S4 | 1999 12 15.51493 | 02 47 31.47 | +34 56 07.5 | 14.9 | T | 360 |
| C/1999 S4 | 1999 12 15.51638 | 02 47 31.34 | +34 56 06.5 | 355 | ||
| C/1999 S4 | 1999 12 15.51736 | 02 47 31.15 | +34 56 06.2 | 360 | ||
| C/1999 S4 | 1999 12 15.51846 | 02 47 31.04 | +34 56 05.5 | 355 | ||
| C/1999 S4 | 1999 12 15.82663 | 02 46 49.75 | +34 53 29.9 | 958 |