Date – 12/04/2018
IRNSS-1I: ISRO successfully launches navigation satellite
– The Indian Space Research Organisation (ISRO) has successfully launched IRNSS-1I navigation satellite from Sriharikota in Andhra Pradesh. The satellite was launched on board of PSLV-C41 (height of 44.4 meters and weight of 321 tonnes) after the normal lift-off and was successfully placed in the designated orbit. It was overall 20th flight of PSLV-XL version and 41st successful mission of total 43 of PSLV.
– The IRNSS-1I is overall eighth satellite to join ISRO’s NavIC navigation satellite constellation. It replaced IRNSS-1A, the first of seven navigation satellites of IRNSS series that was rendered ineffective after its three rubidium atomic clocks failed. IRNSS-1I was made by Bengaluru-based Alpha Design Technologies in collaboration with ISRO.
– The IRNSS-1I was having lift-off weight of 1,425 kg and has life span of 10 years. It carried two types of payloads: Navigation and Ranging. They are L5 and S-band navigation payloads and C-band ranging payloads. It also has corner cube retroreflectors for LASER ranging. It will be stationed in Geosynchronous Orbit at 36,000 km height.
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