Figure 6

Figure 6: Example data from APOLLO from the Apollo 15 array on November 19, 2007, in which 6624 photons were collected in a 5000 shot run. The raw time events are shown in the top plot (with the initial predicted round trip time subtracted). The bottom plot shows the distribution of the outgoing pulses, which when convoluted with the retroreflector tilt is consistent with the measured returns shown in the central plot. The trapezoidal overplot represents the temporal spread due to the orientation of the retroreflector at the time of the observation [43]. (Image credits: Thomas Murphy.)