Considering that the Solar Flux on top of Mars' atmosphere is 590 W/m2 (following the 1/r^2 relation for sunlight), how much of this incident light actually arrives to Mars.
In other words, what is the value of the Solar Flux on Mars surface after it has been attenuated by the thin atmosphere of the planet? (I know it can also affected by landing site and time of the year, so a range of values is what I am expecting)
I'm trying to size Solar Arrays for a mission on Mars Surface and using 590 W/m2 doesn't seem suitable to me since I believe it represents the AM0 value.