From Handwiki - Reading time: 1 min| Operator | Institute of Space and Astronautical Science |
|---|---|
| Start of mission | |
| Launch date | Template:Start date text UTC[1] |
| Launch site | Kagoshima Space Center |
Denpa (電波 denpa, literally, "electromagnetic wave"), also known as REXS (Radiation EXperiments Satellite), was a Japanese satellite.[2] The launch was a project of the Institute of Space and Astronautical Science of the University of Tokyo. The satellite was launched on February 19, 1972.[3] Its objective was to conduct measurements in the magnetosphere. It failed shortly after launch; a later report concluded that the transmitter failed due to a high voltage arc.[2]