Life of ADIS16495 in vacuum environment

1. what is the expected life (in years) of ADIS16495-1 IMU under continuous operation at 60degC in Vacuum environment

2. Is there any flight heritage for this part in Low earth orbit satellite (Nano/Micro satellites) missions?

3. Is there any recommended Relative Humidity (RH) level for operation of ADIS16495-1?

4. Any radiation performance data is available for this part. Especially SEU & TID levels

5. What is the effect of vacuum on device performance?