The question Why isn't there a rocket to launch a single cubesat? has several good answers that explain why there isn't and/or will not likely be one, based mostly on commercial viability, consistent with the gist of the question's text.
Yet one answer cites JAXA's launch of the single 3U cubeast TRICOM-1 into orbit using the “world's smallest orbital rocket” the SS-520-5.
If there are so many good answers explaining why there won't be rockets to launch individual cubesats, one might ask:
- Then why is there one and why did JAXA develop it?
- What are the long term plans for this launch solution (that shouldn't exist)?
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