Answer:
3. ReFS
Explanation:
Only in ReFS include and others do not have all of the below features
1. Automatic integrity checking and data scrubbing
2. Removal of the need for running chkdsk
3. Protection against data degradation
4. Built-in handling of hard disk drive failure and redundancy
5. Integration of RAID functionality
6. A switch to copy/allocate on write for data and metadata updates
7. Handling of very long paths and filenames
8. Storage virtualization and pooling
You would place it in orbit around Earth, as most X-rays are absorbed by the atmosphere, so you would want the detector outside of the atmosphere to accurately detect the X-rays.