| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2001 08 22.66884 | 00 05 19.43 | -41 15 49.2 | 349 | ||
| C/1999 Y1 | 2001 08 22.67504 | 00 05 18.61 | -41 16 00.0 | 349 | ||
| C/1999 Y1 | 2001 08 22.67607 | 00 05 18.48 | -41 16 01.6 | 349 | ||
| C/1999 Y1 | 2001 08 27.70596 | 23 53 52.90 | -43 34 10.9 | 12.4 | T | 360 |
| C/1999 Y1 | 2001 08 27.70825 | 23 53 52.57 | -43 34 14.6 | 360 | ||
| C/1999 Y1 | 2001 08 29.25837 | 23 50 09.08 | -44 14 31.0 | 11.1 | T | 844 |
| C/1999 Y1 | 2001 08 29.26687 | 23 50 07.81 | -44 14 43.8 | 11.4 | T | 844 |
| C/1999 Y1 | 2001 08 29.27631 | 23 50 06.40 | -44 14 58.7 | 11.6 | T | 844 |
| C/1999 Y1 | 2001 10 06.10863 | 22 11 23.23 | -53 16 02.0 | 12.7 | T | 844 |
| C/1999 Y1 | 2001 10 06.11610 | 22 11 22.07 | -53 16 03.4 | 13.0 | T | 844 |
| C/1999 Y1 | 2001 10 06.12846 | 22 11 20.51 | -53 16 05.7 | 13.0 | T | 844 |
| C/1999 Y1 | 2001 10 14.13352 | 21 54 56.73 | -53 33 42.2 | 12.4 | T | 844 |
| C/1999 Y1 | 2001 10 14.13726 | 21 54 56.28 | -53 33 42.2 | 12.2 | T | 844 |
| C/1999 Y1 | 2001 10 14.14561 | 21 54 55.36 | -53 33 42.5 | 12.4 | T | 844 |
| C/1999 Y1 | 2001 11 11.13031 | 21 21 11.65 | -52 42 48.0 | 13.3 | T | 844 |
| C/1999 Y1 | 2001 11 11.15589 | 21 21 10.64 | -52 42 42.9 | 14.6 | T | 844 |
| C/1999 Y1 | 2001 11 11.15785 | 21 21 10.60 | -52 42 42.3 | 13.8 | T | 844 |
| C/1999 Y1 | 2001 11 13.41321 | 21 19 52.65 | -52 35 14.9 | 14.3 | N | 428 |
| C/1999 Y1 | 2001 11 13.43543 | 21 19 51.88 | -52 35 10.6 | 12.9 | T | 428 |
| C/1999 Y1 | 2001 12 27.00608 | 21 20 32.86 | -50 25 46.9 | 13.8 | T | 844 |