> Problem is earth observation, as a market, sucks. With low-latency optical imaging en route, I'm not sure what premium radar would command. One advantage of

> Problem is earth observation, as a market, sucks. With low-latency optical imaging en route, I'm not sure what premium radar would command. One advantage of radar is that sometimes you can see through things that aren't transparent to visible light. I don't know if it's true, but I've heard that modern SAR sats can see through petroleum storage tanks and some warehouse roofs, so they can collect data which may be valuable to traders. These modern sort of radar satellites are apparently fine with solar power, but maybe they'd be even better with more power.