ISRO successfully launches replacement navigation satellite
The Indian Space Research Organisation on Thursday successfully launched the IRNSS-1I navigation satellite, which will replace the IRNSS-1A which was rendered ineffective after its atomic clocks failed. The satellite was launched with PSLV-C41 rocket from Sriharikota spaceport in Andhra Pradesh. This was ISRO's second attempt to send a replacement satellite as the one in August 2017 had failed. 