A video was published on 24th this month for a low pass -can be tracked at 1:28- of a non Syrian aircraft attacked an ISIS ground target somewhere near the communication antenna -refer to the map below- in Albukamal border city, that appeared to be an F-16 of the U.S. led-coalition airpower as can be clearly seen in the photo above.
Eye-witnesses reported that the coalition aircraft are conducting air raids even lower than this altitude which brings to mind that pilots are not relying completely on TV/Laser guided weapons dropped from high altitudes.