February 20, 2019 The concrete pad for the shelter for the new SGSLR system at GGAO has been poured 02/20/2019 With the Government Shutdown now over, the pad has been poured. MOBLAS-7 is in the background with the telescope in the left most of the three trailers and the aircraft avoidance radar sits atop the center trailer. The concrete pad for the shelter for the new SGSLR system has been poured