| Atomic Mass | Mass Excess |
| 155.942844497216 amu | -53.24 MeV |
| Level energy (MeV) | Spin & parity | Half-life | Mode of decay | Branch ratio (%) | Decay energy (MeV) |
| Ground state | 0+ | 26.1 S 0.7 | EC | 90 | 3.58 |
| Ground state | 0+ | 26.1 S 0.7 | A | 10 | 4.812 |
| Decay mode | Half-life | Gamma-ray energy (keV) | Intensity (%) |
| EC | 26.1 S 0.7 | 115.20 | 73.1+- 1.7 |