| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1999 H3 | 2001 03 31.25410 | 09 39 59.46 | +09 22 51.6 | 19.0 | T | 704 |
| C/1999 H3 | 2001 04 01.84925 | 09 38 56.99 | +09 22 14.7 | 17.3 | T | 170 |
| C/1999 H3 | 2001 04 01.85478 | 09 38 56.75 | +09 22 13.8 | 17.3 | T | 170 |
| C/1999 H3 | 2001 04 10.86339 | 09 33 43.28 | +09 17 03.5 | 17.4 | T | 170 |
| C/1999 H3 | 2001 04 21.82459 | 09 28 51.25 | +09 06 36.4 | 17.4 | T | 170 |
| C/1999 H3 | 2001 04 26.45737 | 09 27 17.02 | +09 00 49.7 | 16.8 | T | 360 |
| C/1999 H3 | 2001 04 26.45978 | 09 27 17.03 | +09 00 49.1 | 360 | ||
| C/1999 H3 | 2001 05 12.85250 | 09 23 51.20 | +08 34 02.3 | 17.9 | T | 170 |
| C/1999 H3 | 2001 12 26.11824 | 09 45 21.24 | -05 35 59.8 | 18.2 | T | 170 |
| C/1999 H3 | 2002 03 20.90281 | 08 55 56.61 | -05 05 24.8 | 18.7 | T | 170 |