# Has Akatsuki searched for phosphine in Venus?

The Akatsuki orbiter is never mentioned in articles about the phosphine discovery, does it have the capability to detect it and has it tried?

• Good question! No spacecraft has the capacity or budget to carry every instrument needed to cover every possible method of examining a celestial object. Mar 8 at 2:10

I think it does not have the ability to detect it. What was observed (or may not have been observed now) was a rotational transition at $$267\,\mathrm{GHz}$$ or about $$1.123\,\mathrm{mm}$$. Akatsuki's instruments are all in or around the visible spectrum: it has instruments which work from $$\sim 250\,\mathrm{nm}$$ to $$\sim 10\,\mathrm{\mu m}$$ I think, probably with gaps (from Wikipedia). I couldn't work out whether it had a spectrometer of some kind for one or more instruments: I assume it does however.