| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 01 03.53438 | 03 02 24.44 | +70 33 40.4 | 16.3 | T | 360 |
| C/1999 Y1 | 2000 01 03.53698 | 03 02 24.10 | +70 33 38.1 | 360 | ||
| C/1999 Y1 | 2000 01 03.54540 | 03 02 22.83 | +70 33 31.2 | 16.6 | T | 900 |
| C/1999 Y1 | 2000 01 03.54787 | 03 02 22.46 | +70 33 28.9 | 16.4 | T | 355 |
| C/1999 Y1 | 2000 01 03.55128 | 03 02 22.02 | +70 33 26.0 | 355 | ||
| C/1999 Y1 | 2000 01 03.55478 | 03 02 21.50 | +70 33 23.1 | 355 | ||
| C/1999 Y1 | 2000 01 03.55521 | 03 02 21.41 | +70 33 22.8 | 16.8 | T | 367 |
| C/1999 Y1 | 2000 01 03.55764 | 03 02 21.03 | +70 33 21.0 | 367 | ||
| C/1999 Y1 | 2000 01 03.55808 | 03 02 20.89 | +70 33 20.5 | 900 | ||
| C/1999 Y1 | 2000 01 03.56007 | 03 02 20.58 | +70 33 18.5 | 367 | ||
| C/1999 Y1 | 2000 01 03.64670 | 03 02 07.91 | +70 32 03.9 | 349 | ||
| C/1999 Y1 | 2000 01 03.65101 | 03 02 07.15 | +70 32 00.1 | 16.5 | T | 349 |
| C/1999 Y1 | 2000 01 03.65241 | 03 02 06.74 | +70 32 00.2 | 349 | ||
| C/1999 Y1 | 2000 01 04.58350 | 02 59 51.80 | +70 18 41.9 | 16.6 | T | 402 |
| C/1999 Y1 | 2000 01 04.58475 | 02 59 51.58 | +70 18 40.9 | 402 | ||
| C/1999 Y1 | 2000 01 04.58601 | 02 59 51.47 | +70 18 40.0 | 402 | ||
| C/1999 Y1 | 2000 01 05.87154 | 02 56 52.79 | +70 00 02.9 | 118 | ||
| C/1999 Y1 | 2000 01 05.87730 | 02 56 52.01 | +69 59 57.7 | 15.8 | T | 118 |
| C/1999 Y1 | 2000 01 07.14422 | 02 54 04.56 | +69 41 18.3 | 046 | ||
| C/1999 Y1 | 2000 01 07.14595 | 02 54 04.35 | +69 41 17.1 | 046 |