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印度卫星—1A是美国福特航空空间和通信公司(下文简称为福特公司)为印度研制的多用途国内卫星。1982年4月10日,美国航宇局用德尔它3910/有效载荷辅助舱(PAM)把它发射进一个185×35,000公里的大椭圆转移轨道。按原定计划,这个卫星将在12日进入定点位置,但由于遇到了C-波段天线反射器不能展开、远地点推力器第一次点火失败等严重问题,不能把它送进准同步轨道。在4月12日经过科学家们的努力,远地点推力器的第二次点火获得了成功,才把卫星送进
Indian satellite-1A is a multi-purpose domestic satellite developed for India by Ford Aviation Space and Communications (hereinafter referred to as Ford). On April 10, 1982, NASA launched it into a large elliptical orbit of 185 x 35,000 kilometers using the Del 3910 / PAM (PAM). According to the original plan, the satellite will enter the fixed-point position on the 12th. However, it can not send it into the quasi-geosynchronous orbit because of serious problems such as the failure of the C-band antenna reflector to unfold and the first ignition of the apogee. After the efforts of scientists on April 12, the second ignition of the apogee was successful and the satellite was delivered