| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 N4 | 1999 09 10.81127 | 18 14 12.39 | -01 27 14.8 | 17.6 | T | 561 |
| C/1999 N4 | 1999 09 29.44277 | 18 05 30.95 | -02 27 37.3 | 18.6 | T | 402 |
| C/1999 N4 | 1999 09 29.44506 | 18 05 30.85 | -02 27 38.3 | 402 | ||
| C/1999 N4 | 1999 09 29.44736 | 18 05 30.85 | -02 27 38.1 | 402 | ||
| C/1999 N4 | 1999 10 03.43299 | 18 04 16.91 | -02 39 41.5 | 17.9 | T | 360 |
| C/1999 N4 | 1999 10 03.43681 | 18 04 16.88 | -02 39 42.6 | 360 | ||
| C/1999 N4 | 1999 10 03.44028 | 18 04 16.84 | -02 39 42.7 | 360 | ||
| C/1999 N4 | 2000 03 13.79583 | 18 17 38.20 | -00 52 42.3 | 17.2 | T | 360 |
| C/1999 N4 | 2000 03 13.80104 | 18 17 38.11 | -00 52 40.5 | 360 | ||
| C/1999 N4 | 2000 03 13.80694 | 18 17 37.99 | -00 52 39.1 | 360 | ||
| C/1999 N4 | 2000 03 14.80367 | 18 17 21.54 | -00 48 01.5 | 18.7 | T | 402 |
| C/1999 N4 | 2000 03 14.80589 | 18 17 21.49 | -00 48 01.5 | 402 | ||
| C/1999 N4 | 2000 03 14.80811 | 18 17 21.47 | -00 48 00.4 | 402 | ||
| C/1999 N4 | 2000 03 14.83403 | 18 17 21.00 | -00 47 53.1 | 17.1 | T | 360 |
| C/1999 N4 | 2000 03 14.83889 | 18 17 20.90 | -00 47 51.9 | 360 | ||
| C/1999 N4 | 2000 03 29.75890 | 18 11 30.53 | +00 25 12.1 | 17.2 | T | 349 |
| C/1999 N4 | 2000 03 29.76311 | 18 11 30.49 | +00 25 13.4 | 349 | ||
| C/1999 N4 | 2000 04 05.30972 | 18 07 50.70 | +00 59 08.1 | 16.6 | T | 860 |
| C/1999 N4 | 2000 04 05.33215 | 18 07 49.74 | +00 59 14.1 | 16.3 | T | 860 |
| C/1999 N4 | 2000 04 15.03689 | 18 01 04.50 | +01 50 15.4 | 118 |