I was talking to NASA 502 the other day (Saturday). It was flying around over Baltra, Galapagos, taking pictures (they said). They were having some trouble contacting Guayaquil Centre, so I was relaying for them, as we were halfway to Baltra ourselves at the time. Then I heard it again yesterday, in Colombian airspace, while on the way to Bogota. The aircraft was parked at Guayaquil yesterday afternoon, with a camera pod underneath.
My question. Does anyone here know what it is doing in this part of the world?