| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 A1 | 1999 01 14.46525 | 23 39 51.99 | -31 03 05.1 | 426 | ||
| C/1999 A1 | 1999 01 14.46944 | 23 39 52.20 | -31 03 23.9 | 426 | ||
| C/1999 A1 | 1999 01 14.47297 | 23 39 52.34 | -31 03 40.2 | 426 | ||
| C/1999 A1 | 1999 01 14.47664 | 23 39 52.50 | -31 03 56.2 | 13.0 | N | 426 |
| C/1999 A1 | 1999 01 15.42185 | 23 40 28.85 | -32 12 50.0 | 16.7 | N | 422 |
| C/1999 A1 | 1999 01 15.42263 | 23 40 28.84 | -32 12 53.3 | 16.6 | N | 422 |
| C/1999 A1 | 1999 01 15.47545 | 23 40 30.72 | -32 16 35.2 | 426 | ||
| C/1999 A1 | 1999 01 15.47865 | 23 40 30.79 | -32 16 48.6 | 426 | ||
| C/1999 A1 | 1999 01 15.48278 | 23 40 30.91 | -32 17 05.4 | 13.1 | N | 426 |
| C/1999 A1 | 1999 01 16.38388 | 23 40 59.20 | -33 18 37.3 | 355 | ||
| C/1999 A1 | 1999 01 16.38803 | 23 40 59.21 | -33 18 51.7 | 355 | ||
| C/1999 A1 | 1999 01 16.44476 | 23 41 00.52 | -33 22 22.3 | 16.4 | N | 422 |
| C/1999 A1 | 1999 01 16.44526 | 23 41 00.52 | -33 22 24.1 | 16.5 | N | 422 |
| C/1999 A1 | 1999 01 16.44571 | 23 41 00.51 | -33 22 25.9 | 16.6 | N | 422 |
| C/1999 A1 | 1999 01 17.37753 | 23 41 23.33 | -34 21 54.2 | 897 | ||
| C/1999 A1 | 1999 01 17.38068 | 23 41 23.47 | -34 22 05.6 | 897 | ||
| C/1999 A1 | 1999 01 17.38347 | 23 41 23.36 | -34 22 17.0 | 897 | ||
| C/1999 A1 | 1999 01 17.39622 | 23 41 23.38 | -34 23 03.5 | 13.6 | T | 351 |
| C/1999 A1 | 1999 01 17.39932 | 23 41 23.45 | -34 23 18.5 | 351 | ||
| C/1999 A1 | 1999 01 17.40278 | 23 41 23.84 | -34 23 26.6 | 360 |