sentences:  The experiment was also designed to measure distances to the surface of Geographos, but this phase of the mission was canceled due to a malfunction.The LIDAR system consisted of a 180 mJ, 1064 nm wavelength Nd-YAG ([[Yttrium]]-Aluminum-Garnet) laser transmitter which transmitted pulses to the lunar surface.The laser produced a pulse with a width less than 10 ns.