PSLV, ISRO’s workhorse rocket that can ‘write poems in orbit’

Ajay0 · Apr 25, 2023

ISRO’s Polar Satellite Launch Vehicle (PSLV) Saturday successfully placed two Singapore satellites into their intended orbits.

Two Singapore satellites sent to space: What is PSLV, ISRO’s workhorse rocket that can ‘write poems in orbit’

The PSLV is one of ISRO’s most reliable vehicles, having launched hundreds of satellites with only three failures or partial failures since 1993. Over the years, various improvements have been made to it, making it a stand-out satellite carrier.

Launch vehicles are meant only to deposit satellites into space, after which they become useless. They either burn up in space or add to the ever-increasing concern of space debris. The PSLV, however, is now technologically advanced enough to have one component that can stay on in space to carry out the research after it has delivered its satellite. The current mission includes this component, POEM-2, which stands for PSLV Orbital Experimental Module.

The rocket launched on Saturday carried TeLEOS-2 as the primary satellite and Lumelite-4 as a co-passenger satellite, ISRO said in a statement. While TeLEOS-2 will “be used to support the satellite imagery requirements of various agencies within the Government of Singapore”, Lumelite-4 “aims to augment Singapore’s e-navigation maritime safety and benefit the global shipping community”, the space agency said.

POEM-2, meanwhile, will “be utilised as an orbital platform to carry out scientific experiments through non-separating payloads. The payloads belong to ISRO/Department of Space, Bellatrix, Dhruva Space, and Indian Institute of Astrophysics,” ISRO said.
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