| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 09 03.01990 | 03 06 54.07 | +50 07 54.8 | 958 | ||
| C/1999 Y1 | 2000 09 03.03126 | 03 06 53.12 | +50 07 54.5 | 958 | ||
| C/1999 Y1 | 2000 09 03.04791 | 03 06 51.77 | +50 07 53.8 | 958 | ||
| C/1999 Y1 | 2000 09 03.22187 | 03 06 37.53 | +50 07 44.1 | 642 | ||
| C/1999 Y1 | 2000 09 03.22687 | 03 06 37.11 | +50 07 43.5 | 642 | ||
| C/1999 Y1 | 2000 09 03.66971 | 03 06 00.56 | +50 07 21.9 | 14.2 | T | 348 |
| C/1999 Y1 | 2000 09 03.67171 | 03 06 00.34 | +50 07 22.0 | 348 | ||
| C/1999 Y1 | 2000 09 05.06106 | 03 04 01.67 | +50 05 54.9 | 958 | ||
| C/1999 Y1 | 2000 09 05.06963 | 03 04 00.95 | +50 05 53.9 | 958 | ||
| C/1999 Y1 | 2000 09 05.09080 | 03 03 59.00 | +50 05 52.9 | 958 | ||
| C/1999 Y1 | 2000 09 05.11126 | 03 03 57.20 | +50 05 51.6 | 958 | ||
| C/1999 Y1 | 2000 09 05.11985 | 03 03 56.43 | +50 05 51.1 | 958 | ||
| C/1999 Y1 | 2000 09 05.77431 | 03 02 58.64 | +50 05 01.6 | 13.8 | T | 360 |
| C/1999 Y1 | 2000 09 05.77708 | 03 02 58.39 | +50 05 01.3 | 360 | ||
| C/1999 Y1 | 2000 09 06.12793 | 03 02 27.05 | +50 04 30.8 | 958 | ||
| C/1999 Y1 | 2000 09 06.15828 | 03 02 24.23 | +50 04 29.1 | 958 | ||
| C/1999 Y1 | 2000 09 06.17609 | 03 02 22.57 | +50 04 27.0 | 958 | ||
| C/1999 Y1 | 2000 09 08.13748 | 02 59 20.41 | +50 01 10.3 | 958 | ||
| C/1999 Y1 | 2000 09 08.16022 | 02 59 18.25 | +50 01 07.9 | 958 | ||
| C/1999 Y1 | 2000 09 08.17861 | 02 59 16.42 | +50 01 06.1 | 958 |