| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 S4 | 1999 10 23.83150 | 04 39 22.58 | +36 15 59.5 | 897 | ||
| C/1999 S4 | 1999 10 24.59287 | 04 38 18.55 | +36 18 58.1 | 402 | ||
| C/1999 S4 | 1999 10 24.59413 | 04 38 18.44 | +36 18 58.7 | 402 | ||
| C/1999 S4 | 1999 10 24.59782 | 04 38 18.09 | +36 18 59.9 | 15.7 | T | 402 |
| C/1999 S4 | 1999 10 25.25519 | 04 37 21.45 | +36 21 31.6 | 15.8 | T | 750 |
| C/1999 S4 | 1999 10 25.26049 | 04 37 21.01 | +36 21 32.7 | 16.4 | T | 750 |
| C/1999 S4 | 1999 10 25.26840 | 04 37 20.30 | +36 21 35.2 | 16.3 | T | 750 |
| C/1999 S4 | 1999 10 25.63360 | 04 36 48.37 | +36 22 58.7 | 15.5 | T | 900 |
| C/1999 S4 | 1999 10 25.64763 | 04 36 47.18 | +36 23 01.5 | 900 | ||
| C/1999 S4 | 1999 10 26.02917 | 04 36 13.47 | +36 24 27.7 | 16.7 | N | 461 |
| C/1999 S4 | 1999 10 26.03194 | 04 36 13.21 | +36 24 28.3 | 461 | ||
| C/1999 S4 | 1999 10 26.03495 | 04 36 12.94 | +36 24 29.2 | 461 | ||
| C/1999 S4 | 1999 10 27.82310 | 04 33 30.88 | +36 30 57.4 | 15.6 | T | 049 |
| C/1999 S4 | 1999 10 27.82870 | 04 33 30.38 | +36 30 59.1 | 15.6 | T | 049 |
| C/1999 S4 | 1999 10 27.83422 | 04 33 29.87 | +36 31 00.1 | 15.6 | T | 049 |
| C/1999 S4 | 1999 10 28.99678 | 04 31 40.26 | +36 35 05.5 | 046 | ||
| C/1999 S4 | 1999 10 28.99819 | 04 31 40.14 | +36 35 05.6 | 046 | ||
| C/1999 S4 | 1999 10 28.99936 | 04 31 40.00 | +36 35 05.7 | 046 | ||
| C/1999 S4 | 1999 10 29.00050 | 04 31 39.91 | +36 35 06.1 | 046 | ||
| C/1999 S4 | 1999 10 29.00200 | 04 31 39.75 | +36 35 06.3 | 046 |