| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 2000 08 29.70603 | 03 12 22.20 | +50 09 39.3 | 349 | ||
| C/1999 Y1 | 2000 08 29.70938 | 03 12 21.94 | +50 09 39.7 | 349 | ||
| C/1999 Y1 | 2000 08 29.97419 | 03 12 03.20 | +50 09 37.0 | 127 | ||
| C/1999 Y1 | 2000 08 29.97950 | 03 12 02.82 | +50 09 36.9 | 127 | ||
| C/1999 Y1 | 2000 08 30.94321 | 03 10 53.07 | +50 09 27.2 | 127 | ||
| C/1999 Y1 | 2000 08 30.94987 | 03 10 52.61 | +50 09 27.1 | 127 | ||
| C/1999 Y1 | 2000 08 30.98764 | 03 10 49.82 | +50 09 27.0 | 127 | ||
| C/1999 Y1 | 2000 08 31.07449 | 03 10 43.33 | +50 09 26.0 | 958 | ||
| C/1999 Y1 | 2000 08 31.07876 | 03 10 43.03 | +50 09 26.2 | 958 | ||
| C/1999 Y1 | 2000 08 31.08302 | 03 10 42.69 | +50 09 26.1 | 958 | ||
| C/1999 Y1 | 2000 09 01.07244 | 03 09 28.20 | +50 09 05.1 | 958 | ||
| C/1999 Y1 | 2000 09 01.08102 | 03 09 27.58 | +50 09 04.5 | 958 | ||
| C/1999 Y1 | 2000 09 02.04402 | 03 08 12.65 | +50 08 35.8 | 958 | ||
| C/1999 Y1 | 2000 09 02.05259 | 03 08 12.01 | +50 08 36.2 | 958 | ||
| C/1999 Y1 | 2000 09 02.05692 | 03 08 11.53 | +50 08 34.6 | 958 | ||
| C/1999 Y1 | 2000 09 02.60356 | 03 07 27.97 | +50 08 14.1 | 14.0 | T | 349 |
| C/1999 Y1 | 2000 09 02.60490 | 03 07 27.87 | +50 08 14.3 | 349 | ||
| C/1999 Y1 | 2000 09 02.60921 | 03 07 27.51 | +50 08 14.0 | 349 | ||
| C/1999 Y1 | 2000 09 02.96946 | 03 06 58.21 | +50 07 57.2 | 958 | ||
| C/1999 Y1 | 2000 09 02.99862 | 03 06 55.84 | +50 07 56.1 | 958 |