The mystery continues. The aircraft in your photo does not have a nose boom; the one spotted on the ramp (at a long distance from across the field) appeared to have a boom (maybe it was a tow bar attached?). A zoom up on your photo reveals some orange (i.e. potentially instrumented test gear or external test markings for photo tracking and analysis). Others who have seen it in flight here last week said that it stayed over land with the landing gear was always down and one reported seeing orange on it as well.