| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 S4 | 1999 10 08.42279 | 04 56 27.24 | +35 08 02.7 | 17.3 | T | 704 |
| C/1999 S4 | 1999 10 08.43827 | 04 56 26.43 | +35 08 07.3 | 17.4 | T | 704 |
| C/1999 S4 | 1999 10 08.45375 | 04 56 25.66 | +35 08 11.4 | 17.3 | T | 704 |
| C/1999 S4 | 1999 10 08.46926 | 04 56 24.77 | +35 08 16.0 | 17.5 | T | 704 |
| C/1999 S4 | 1999 10 08.57997 | 04 56 19.47 | +35 08 46.9 | 411 | ||
| C/1999 S4 | 1999 10 08.58344 | 04 56 19.30 | +35 08 48.3 | 411 | ||
| C/1999 S4 | 1999 10 08.60714 | 04 56 18.11 | +35 08 54.5 | 411 | ||
| C/1999 S4 | 1999 10 08.61683 | 04 56 17.67 | +35 08 56.3 | 16.5 | T | 886 |
| C/1999 S4 | 1999 10 08.62104 | 04 56 17.37 | +35 08 58.4 | 16.4 | T | 897 |
| C/1999 S4 | 1999 10 08.62603 | 04 56 17.15 | +35 08 59.8 | 897 | ||
| C/1999 S4 | 1999 10 08.63104 | 04 56 16.84 | +35 09 01.6 | 886 | ||
| C/1999 S4 | 1999 10 08.63131 | 04 56 16.86 | +35 09 01.6 | 897 | ||
| C/1999 S4 | 1999 10 08.65295 | 04 56 15.53 | +35 09 04.5 | 886 | ||
| C/1999 S4 | 1999 10 08.71354 | 04 56 12.66 | +35 09 24.4 | 349 | ||
| C/1999 S4 | 1999 10 08.73274 | 04 56 11.70 | +35 09 30.0 | 16.4 | T | 349 |
| C/1999 S4 | 1999 10 08.74115 | 04 56 11.18 | +35 09 32.3 | 349 | ||
| C/1999 S4 | 1999 10 09.05607 | 04 55 55.27 | +35 10 60.0 | 958 | ||
| C/1999 S4 | 1999 10 09.06003 | 04 55 54.87 | +35 11 02.0 | 16.0 | N | 620 |
| C/1999 S4 | 1999 10 09.07170 | 04 55 54.26 | +35 11 04.9 | 620 | ||
| C/1999 S4 | 1999 10 09.08031 | 04 55 53.99 | +35 11 05.8 | 958 |