| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1998 M2 | 1998 07 03.92712 | 17 55 38.18 | +09 16 54.7 | 15.6 | N | 143 |
| C/1998 M2 | 1998 07 03.92909 | 17 55 38.02 | +09 16 56.6 | 15.5 | N | 143 |
| C/1998 M2 | 1998 07 03.93104 | 17 55 37.88 | +09 16 58.8 | 15.6 | N | 143 |
| C/1998 M2 | 1998 07 03.93300 | 17 55 37.71 | +09 17 01.4 | 15.5 | N | 143 |
| C/1998 M2 | 1998 07 03.93495 | 17 55 37.63 | +09 17 04.0 | 15.6 | N | 143 |
| C/1998 M2 | 1998 07 04.55985 | 17 54 54.85 | +09 29 24.7 | 14.2 | T | 355 |
| C/1998 M2 | 1998 07 04.56146 | 17 54 54.79 | +09 29 26.4 | 355 | ||
| C/1998 M2 | 1998 07 04.56279 | 17 54 54.67 | +09 29 27.8 | 355 | ||
| C/1998 M2 | 1998 07 05.62433 | 17 53 42.46 | +09 50 07.0 | 14.8 | T | 402 |
| C/1998 M2 | 1998 07 05.62642 | 17 53 42.31 | +09 50 09.3 | 402 | ||
| C/1998 M2 | 1998 07 05.62747 | 17 53 42.24 | +09 50 10.2 | 402 | ||
| C/1998 M2 | 1998 07 06.35666 | 17 52 53.12 | +10 04 05.9 | 658 | ||
| C/1998 M2 | 1998 07 06.35892 | 17 52 52.97 | +10 04 08.5 | 658 | ||
| C/1998 M2 | 1998 07 06.36126 | 17 52 52.81 | +10 04 11.2 | 658 | ||
| C/1998 M2 | 1998 07 08.54721 | 17 50 28.34 | +10 44 49.3 | 14.7 | T | 402 |
| C/1998 M2 | 1998 07 08.54825 | 17 50 28.26 | +10 44 50.5 | 402 | ||
| C/1998 M2 | 1998 07 08.54929 | 17 50 28.20 | +10 44 51.5 | 402 | ||
| C/1998 M2 | 1998 07 08.55034 | 17 50 28.13 | +10 44 52.7 | 402 | ||
| C/1998 M2 | 1998 07 10.85589 | 17 47 59.87 | +11 25 47.8 | 108 | ||
| C/1998 M2 | 1998 07 10.85851 | 17 48 00.03 | +11 25 44.7 | 108 |