《印度时报》网站3月28日报道称,印度朝着建立一个可替代美国GPS的卫星导航系统又迈出了一步,28日将IRNSS(印度区域导航卫星系统)-1D卫星送入轨道。这是7颗IRNSS卫星中的第四颗,它们将形成一个导航卫星网络。C-27型极轨卫星运载火箭(PSLV-C27)下午5点29分从萨蒂什·达万航天中心发射升空,并在飞行 The Times of India website reported on March 28 that India has taken another step toward establishing a satellite navigation system that will replace the United States GPS, with the IRNSS-1D satellite being put on orbit on the 28th. This is the fourth of the seven IRNSS satellites that will form a navigation satellite network. The C-27 Polar-orbit Satellite Launch Vehicle (PSLV-C27) was launched at 5.91 p.m. from the Satish Deepin Space Center and was flying