APOLLO is now using "Lunokhod 1"s reflector for experiments, as they discovered, to their surprise, that it was returning much more light than other reflectors on the Moon. According to a NASA press release, APOLLO researcher Tom Murphy said, "We got about 2,000 photons from Lunokhod 1 on our first try. After almost 40 years of silence, this rover still has a lot to say." By November 2010, the location of the rover had been determined to within about a centimeter. The location near the limb of the Moon, combined with the ability to range the rover even when it is in sunlight, promises to be particularly useful for determining aspects of the Earth–Moon system. In a report released in May 2013, French scientists at the Côte d'Azur Observatory led by Jean-Marie Torre reported replicating the 2010 laser ranging experiments by American scientists after research using images from the NASA Lunar Reconnaissance Orbiter. In both cases, laser pulses were returned from the "Lunokhod 1" retroreflector.