| Atomic Mass | Mass Excess |
| 261.116157501902 amu | 108.2 MeV |
| Level energy (MeV) | Spin & parity | Half-life | Mode of decay | Branch ratio (%) | Decay energy (MeV) |
| Ground state | 0.23 S 0.06 | A | ~100.00 | 9.8 | |
| Ground state | 0.23 S 0.06 | SF | <1.00 | 0 |
There is no gamma-rays or the intensities are so weak!