| Atomic Mass | Mass Excess |
| 148.918329037757 amu | -76.076 MeV |
| Level energy (MeV) | Spin & parity | Half-life | Mode of decay | Branch ratio (%) | Decay energy (MeV) |
| Ground state | 7/2+ | 53.08 H 0.05 | B- | 100 | 1.071 |
| Decay mode | Half-life | Gamma-ray energy (keV) | Intensity (%) |
| B- | 53.08 H 0.05 | 285.950 | 3.10+- 0.20 |