| Atomic Mass | Mass Excess |
| 143.912585575325 amu | -81.426 MeV |
| Level energy (MeV) | Spin & parity | Half-life | Mode of decay | Branch ratio (%) | Decay energy (MeV) |
| Ground state | 5- | 363 D 14 | EC | 100 | 2.332 |
| Decay mode | Half-life | Gamma-ray energy (keV) | Intensity (%) |
| EC | 363 D 14 | 476.78 | 42.0+- 0.8 |
| EC | 363 D 14 | 618.01 | 98.6+- 1.0 |
| EC | 363 D 14 | 694.00 | 0.55+- 0.10 |
| EC | 363 D 14 | 696.49 | 99.490+-0.020 |
| EC | 363 D 14 | 778.57 | 1.51+- 0.05 |
| EC | 363 D 14 | 814.14 | 0.55+- 0.03 |