Slightly off-topic, but I wonder what the big circle of light pollution is in Western Brazil, west-southwest of Manaus? It looks like it's centered over Urucu, which Google reveals is home to a natural gas pipeline. I wonder if there was a fire there or something when the satellite passed?
When extracting or processing natural gas, it's common to burn off some of the byproduct in a process known as "flaring." So yes, there was a fire but there's always a fire.
