| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 S4 | 1999 12 21.74809 | 02 34 05.29 | +34 00 49.0 | 16.2 | N | 610 |
| C/1999 S4 | 1999 12 21.75503 | 02 34 04.43 | +34 00 45.2 | 610 | ||
| C/1999 S4 | 1999 12 21.76198 | 02 34 03.57 | +34 00 41.4 | 610 | ||
| C/1999 S4 | 1999 12 21.76892 | 02 34 02.71 | +34 00 37.6 | 610 | ||
| C/1999 S4 | 1999 12 21.80535 | 02 33 58.19 | +34 00 17.5 | 610 | ||
| C/1999 S4 | 1999 12 22.46940 | 02 32 36.40 | +33 54 05.1 | 14.9 | T | 402 |
| C/1999 S4 | 1999 12 22.47066 | 02 32 36.24 | +33 54 04.7 | 402 | ||
| C/1999 S4 | 1999 12 22.47192 | 02 32 36.07 | +33 54 03.9 | 402 | ||
| C/1999 S4 | 1999 12 22.63729 | 02 32 15.69 | +33 52 29.4 | 14.7 | T | 349 |
| C/1999 S4 | 1999 12 22.63846 | 02 32 15.51 | +33 52 29.0 | 349 | ||
| C/1999 S4 | 1999 12 23.49267 | 02 30 32.08 | +33 44 24.8 | 349 | ||
| C/1999 S4 | 1999 12 23.49410 | 02 30 31.92 | +33 44 23.5 | 349 | ||
| C/1999 S4 | 1999 12 23.50092 | 02 30 31.11 | +33 44 20.1 | 14.8 | T | 900 |
| C/1999 S4 | 1999 12 23.50635 | 02 30 30.44 | +33 44 16.6 | 14.5 | T | 349 |
| C/1999 S4 | 1999 12 23.51377 | 02 30 29.59 | +33 44 12.6 | 900 | ||
| C/1999 S4 | 1999 12 25.39248 | 02 26 47.18 | +33 26 10.9 | 411 | ||
| C/1999 S4 | 1999 12 25.40663 | 02 26 45.50 | +33 26 02.9 | 411 | ||
| C/1999 S4 | 1999 12 25.42605 | 02 26 43.19 | +33 25 51.7 | 411 | ||
| C/1999 S4 | 1999 12 25.45542 | 02 26 39.66 | +33 25 34.8 | 14.5 | T | 900 |
| C/1999 S4 | 1999 12 25.47205 | 02 26 37.69 | +33 25 25.1 | 900 |