I wonder, if you know you were launching one every six months for the next 20 years, what would the unit cost be? You might be able to use a commercial satelli

I wonder, if you know you were launching one every six months for the next 20 years, what would the unit cost be? You might be able to use a commercial satellite bus for example. It would be fine if some would experience failures, as there would be the next one already lined up. Just put different instrument(s) at the end of the optical path in each. As example, Hubble has five instruments. https://hubblesite.org/mission-and-telescope/instruments https://hubblesite.org/mission-and-telescope/instruments One could start a design from something like CHEOPS with a 30 cm mirror. https://sci.esa.int/web/cheops/-/54032-spacecraft https://sci.esa.int/web/cheops/-/54032-spacecraft