Facility
- VISTA4
- VLA4
- VLT7
- VLT, European Southern Observatory, Chile2
- VSOP with HALCA2
- Various1
- Vega-11
- Venus Express#VEx1
- Very Large Telescope1
- Very Long Baseline Array, operated by The National Radio Astronomy Observatory1
- WISE10
- WMAP9
- WSRT18
- WUPPE4
- XMM25
- XMM-NEWTON101
- XMM-Newton3
- XRISM1
- XinJiang Astronomical Observatory1
- custom3
