Overcast, Vandenberg
A launch under heavy overcast at Vandenberg, carrying a satellite whose job is to keep measuring the height of the sea.
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The satellite inside this rocket went up to keep a measurement going. Since 1992 a series of American and European satellites had been tracking the height of the ocean, and by the time Jason-3 left Vandenberg on 17 January 2016 they had recorded 70 millimetres of global sea level rise, an average of about 3 millimetres a year.
From an orbit 1,336 kilometres up, Jason-3 reads the surface of 95 percent of the ice-free ocean every ten days, to an accuracy of about 3.3 centimetres. In the photograph there is no hard shadow anywhere. The overcast diffuses everything, a boiling white smoke bank fills the lower half, and the palette runs grey to warm cream with almost no blue.