ISRO successfully launches IRNSS-1I Navigation Satellite on 12th April, 2018

In the 43rd flight of PSLV,  ISRO's PSLV-C41 has successfully launched the 1425 Kg IRNSS-1I Navigation Satellite on 12th April, 2018 from Satish Dhawan Space Center, Sriharikota.  The launch took place at 04:04 hrs IST

The vehicle lifted off from the first launch pad as planned and after a flight time of 19 minutes, the vehicle achieved a GTO orbit with perigee of 281.5 Km and apogee of 20,730 Km inclined at an angle of 19.2 degrees to the equator after which the IRNSS-1I satellite was separated from PSLV.

The IRNSS-1I is expected to replace IRNSS-1A, the first of the seven navigation satellites, that was rendered ineffective after its three rubidium atomic clocks failed..  The seven satellites are a part of the NavIC navigation satellite constellation.

The video of the launch is shown below.


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India's GSLV-F08 successfully injects Communication Satellite GSAT-6A into orbit on 29th March, 2018

ISRO successfully placed a communication satellite GSAT-6A into a geosynchronous transfer orbit. The satellite was carried  onboard the GSLV-F08 launch vehicle from Satish Dhawan Space Center in Sriharikota on Thursday,  March 29th, 2018 at 16:56 hrs IST

The GSLV-F08 is the 12th flight of GSLV launch vehicle and sixth flight with indigenous cryogenic stage.  The launch took place from the second launch pad at Satish Dhawan Space Center

The GSAT-6A is a communication satellite that will complement the GSAT-6 which is already in orbit  The diameter of the antenna of this satellite is 6 meters - it can be unfurled and opened like an umbrella once it reaches the prescriibed orbit and improve India's communication capabilities.

The GSAT-6A is a high power S-band communication satellite and its mission life is about 10 years.