Polar Satellite Launch Vehicle ( PSLV ) is a launch vehicle developed and operated by the Indian space research organization (ISRO). It was developed to enable India to launch its remote sensing satellites into sun-synchronous orbit . It can also launch small satellites into geostationary transfer orbit . As of 2015 the PSLV has launched 80 spacecraft into a variety of orbits.
PSLV was designed and developed in the early 1990s at Vikram Sarabhai Space Center . It is a four stage launch vehicle with first stage , six strapons and third stage are powered by solid fuel while second and fourth stage are powered by liquid fueled engines .
First stage is called S139 . It carries 138.2 Tonnes of solid propellent and is made up of maraging steel with a empty weight of 30 tonnes . It is made up of five segments
each containing 38 tonnes of HTBP propellent. Total five segments are joined to make core stage . PSLV and PSLV-XL also uses six strapons. PSLV uses S9 solid fueled strapons containg 9 tonnes of solid propellent while PSLV-XL uses S12 strapons containg 12 tonnes of propellent. The PSLV-CA uses no strap-on boosters.
Pitch and Yaw control are provided in first stage by Secondary Injection Thrust Vector Control System (SITVC) and roll control is provided by the Roll Control Thrusters (RCT). The second stage employs the Vikas engine carrying 41.5 of UDMH as fuel and N2O4 as oxidizer generating a thrust of 800 kn ( 80 tonnes) . The third stage uses 7 tonnes of HTPB-based solid propellant and produces a maximum thrust of 240 kn . It burns for a duration of 113 seconds . Fourth stage is a liquid stage using two clustered engines . It generates thrust of 14.4 kn .
As of 28 September 2015 the PSLV has made 31 launches, with 30 success and 1 failure . Some notable payloads launched by PSLV include Chandaryaan 1 lunar probe and Mars Orbiter Mission..
All of launches occurred from Satish Dhawan Space Center .
First stage is called S139 . It carries 138.2 Tonnes of solid propellent and is made up of maraging steel with a empty weight of 30 tonnes . It is made up of five segments
each containing 38 tonnes of HTBP propellent. Total five segments are joined to make core stage . PSLV and PSLV-XL also uses six strapons. PSLV uses S9 solid fueled strapons containg 9 tonnes of solid propellent while PSLV-XL uses S12 strapons containg 12 tonnes of propellent. The PSLV-CA uses no strap-on boosters.
Pitch and Yaw control are provided in first stage by Secondary Injection Thrust Vector Control System (SITVC) and roll control is provided by the Roll Control Thrusters (RCT). The second stage employs the Vikas engine carrying 41.5 of UDMH as fuel and N2O4 as oxidizer generating a thrust of 800 kn ( 80 tonnes) . The third stage uses 7 tonnes of HTPB-based solid propellant and produces a maximum thrust of 240 kn . It burns for a duration of 113 seconds . Fourth stage is a liquid stage using two clustered engines . It generates thrust of 14.4 kn .
As of 28 September 2015 the PSLV has made 31 launches, with 30 success and 1 failure . Some notable payloads launched by PSLV include Chandaryaan 1 lunar probe and Mars Orbiter Mission..
All of launches occurred from Satish Dhawan Space Center .
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