| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 12 27.40778 | 23 50 43.47 | +12 51 20.1 | 13.4 | T | 360 |
| C/1999 Y1 | 2000 12 27.41013 | 23 50 43.46 | +12 51 17.5 | 360 | ||
| C/1999 Y1 | 2000 12 27.74502 | 23 50 40.39 | +12 45 20.8 | 14.8 | T | 170 |
| C/1999 Y1 | 2000 12 27.75046 | 23 50 40.33 | +12 45 15.2 | 14.8 | T | 170 |
| C/1999 Y1 | 2000 12 27.75593 | 23 50 40.25 | +12 45 07.3 | 14.9 | T | 170 |
| C/1999 Y1 | 2000 12 30.84968 | 23 50 18.92 | +11 52 18.1 | 14.3 | T | 941 |
| C/1999 Y1 | 2001 01 02.03416 | 23 50 11.17 | +11 16 52.0 | 16.4 | T | 750 |
| C/1999 Y1 | 2001 01 02.04851 | 23 50 11.16 | +11 16 38.2 | 16.3 | T | 750 |
| C/1999 Y1 | 2001 01 02.10398 | 23 50 11.05 | +11 15 44.7 | 16.0 | T | 750 |
| C/1999 Y1 | 2001 01 03.41323 | 23 50 09.19 | +10 55 14.8 | 355 | ||
| C/1999 Y1 | 2001 01 03.41486 | 23 50 09.20 | +10 55 13.3 | 13.7 | T | 355 |
| C/1999 Y1 | 2001 01 03.41744 | 23 50 09.18 | +10 55 11.3 | 355 | ||
| C/1999 Y1 | 2001 01 05.06910 | 23 50 09.73 | +10 30 05.8 | 15.6 | T | 704 |
| C/1999 Y1 | 2001 01 05.08412 | 23 50 09.81 | +10 29 50.9 | 16.0 | T | 704 |
| C/1999 Y1 | 2001 01 05.09915 | 23 50 09.82 | +10 29 37.2 | 16.0 | T | 704 |
| C/1999 Y1 | 2001 01 05.11417 | 23 50 09.79 | +10 29 22.4 | 15.8 | T | 704 |
| C/1999 Y1 | 2001 01 05.12919 | 23 50 09.79 | +10 29 08.2 | 15.8 | T | 704 |
| C/1999 Y1 | 2001 01 06.38950 | 23 50 12.26 | +10 10 32.8 | 13.1 | T | 349 |
| C/1999 Y1 | 2001 01 06.39285 | 23 50 12.27 | +10 10 30.1 | 349 | ||
| C/1999 Y1 | 2001 01 06.39411 | 23 50 12.28 | +10 10 28.8 | 349 |
