| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 Y1 | 1999 12 27.50444 | 03 22 11.05 | +72 07 19.7 | 897 | ||
| C/1999 Y1 | 1999 12 27.50521 | 03 22 10.81 | +72 07 18.2 | 351 | ||
| C/1999 Y1 | 1999 12 27.51275 | 03 22 09.48 | +72 07 12.4 | 351 | ||
| C/1999 Y1 | 1999 12 27.52141 | 03 22 07.71 | +72 07 07.0 | 897 | ||
| C/1999 Y1 | 1999 12 27.52164 | 03 22 07.70 | +72 07 07.3 | 17.0 | T | 348 |
| C/1999 Y1 | 1999 12 27.53148 | 03 22 05.83 | +72 06 59.0 | 16.8 | T | 897 |
| C/1999 Y1 | 1999 12 27.55125 | 03 22 02.08 | +72 06 44.9 | 16.9 | T | 402 |
| C/1999 Y1 | 1999 12 27.55251 | 03 22 01.78 | +72 06 44.2 | 402 | ||
| C/1999 Y1 | 1999 12 27.55377 | 03 22 01.57 | +72 06 42.9 | 402 | ||
| C/1999 Y1 | 1999 12 27.55503 | 03 22 01.36 | +72 06 42.2 | 402 | ||
| C/1999 Y1 | 1999 12 27.58050 | 03 21 56.64 | +72 06 22.8 | 903 | ||
| C/1999 Y1 | 1999 12 27.58581 | 03 21 55.87 | +72 06 19.5 | 16.7 | T | 903 |
| C/1999 Y1 | 1999 12 27.73663 | 03 21 26.85 | +72 04 26.3 | 349 | ||
| C/1999 Y1 | 1999 12 27.73985 | 03 21 26.23 | +72 04 23.3 | 16.4 | T | 349 |
| C/1999 Y1 | 1999 12 27.74323 | 03 21 25.73 | +72 04 20.9 | 349 | ||
| C/1999 Y1 | 1999 12 27.79197 | 03 21 16.81 | +72 03 45.3 | 557 | ||
| C/1999 Y1 | 1999 12 27.79432 | 03 21 16.35 | +72 03 43.5 | 557 | ||
| C/1999 Y1 | 1999 12 27.79897 | 03 21 15.55 | +72 03 40.2 | 557 | ||
| C/1999 Y1 | 1999 12 27.80130 | 03 21 15.10 | +72 03 38.3 | 557 | ||
| C/1999 Y1 | 1999 12 27.80362 | 03 21 14.61 | +72 03 36.4 | 557 |
