| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 12 06.40915 | 23 59 52.75 | +20 21 27.1 | 349 | ||
| C/1999 Y1 | 2000 12 07.44444 | 23 59 06.70 | +19 55 32.6 | 341 | ||
| C/1999 Y1 | 2000 12 07.45486 | 23 59 06.24 | +19 55 16.9 | 13.1 | T | 341 |
| C/1999 Y1 | 2000 12 08.00546 | 23 58 42.69 | +19 41 42.1 | 860 | ||
| C/1999 Y1 | 2000 12 08.00995 | 23 58 42.44 | +19 41 35.7 | 860 | ||
| C/1999 Y1 | 2000 12 08.01549 | 23 58 42.26 | +19 41 26.9 | 860 | ||
| C/1999 Y1 | 2000 12 08.40343 | 23 58 26.12 | +19 31 53.0 | 12.8 | T | 402 |
| C/1999 Y1 | 2000 12 08.40595 | 23 58 26.03 | +19 31 49.4 | 402 | ||
| C/1999 Y1 | 2000 12 08.40848 | 23 58 25.92 | +19 31 45.7 | 402 | ||
| C/1999 Y1 | 2000 12 08.88786 | 23 58 06.13 | +19 19 59.5 | 13.8 | T | 941 |
| C/1999 Y1 | 2000 12 09.78082 | 23 57 31.03 | +18 58 28.3 | 952 | ||
| C/1999 Y1 | 2000 12 09.78505 | 23 57 30.84 | +18 58 21.7 | 952 | ||
| C/1999 Y1 | 2000 12 09.79375 | 23 57 30.55 | +18 58 09.9 | 952 | ||
| C/1999 Y1 | 2000 12 09.86653 | 23 57 27.56 | +18 56 21.1 | 13.9 | T | 941 |
| C/1999 Y1 | 2000 12 10.74499 | 23 56 54.61 | +18 35 23.0 | 14.5 | T | 170 |
| C/1999 Y1 | 2000 12 10.75356 | 23 56 54.21 | +18 35 10.9 | 14.8 | T | 170 |
| C/1999 Y1 | 2000 12 12.48343 | 23 55 53.57 | +17 54 53.2 | 12.9 | T | 347 |
| C/1999 Y1 | 2000 12 12.48831 | 23 55 53.44 | +17 54 46.9 | 12.7 | T | 347 |
| C/1999 Y1 | 2000 12 12.49074 | 23 55 53.40 | +17 54 42.9 | 12.7 | T | 347 |
| C/1999 Y1 | 2000 12 16.37031 | 23 53 57.52 | +16 28 06.8 | 13.1 | T | 349 |