So what will this Kvant be capable of science-wise? As it says on wikipedia, it had a X-Ray telescope with a coded mask imaging spectrometer/ wide-angle camera, a gas scintillation proportional spectrometer, a High Energy X-ray Experiment, and a X-ray/gamma ray (20-1300 keV) detector, whilst also having other individual science things like a ultraviolet telescope, a magnetic spectrometer, a electrophoresis unit, and finally a surface istrument to investigate earth/kebin's ionosphere and magnetosphere. now I doubt you'll add all of this, I barely know what this stuff is, I'm just taking this from wikipedia, but this seems to be what you should be going for. What experiments are you planning for it right now?