PSLV-XL to launch Proba-3 mission: All you need to know about it

The Indian Space Research Organisation (Isro) is gearing up to launch the ambitious twin Proba-3 spacecraft. The satellites have been integrated into the payload fairing of the Polar Satellite Launch Vehicle.
The Indian space agency is using the XL version of its workhorse rocket, which has proven time and again its reliability and delivery capabilities.
Among the rocket’s various configurations, the PSLV-XL stands out due to its enhanced capabilities, particularly for missions like the upcoming launch of the Proba-3 satellite.
The PSLV-XL version is equipped with six strap-on solid rocket boosters, each carrying 12 tonnes of propellant, which significantly increases its payload capacity compared to the standard PSLV.

PSLV-XL’s enhanced thrust and efficiency make it a preferred choice. (Photo: Isro)

This configuration allows the PSLV-XL to carry heavier satellites into orbit, making it ideal for complex missions that require more substantial payloads. In contrast, the regular PSLV typically uses four strap-on boosters, limiting its overall capacity.
One of the key features of the PSLV-XL is its ability to place multiple satellites into different orbits during a single launch.
This multi-payload capability has been demonstrated in past missions, where it successfully launched dozens of satellites simultaneously.
The PSLV-XL’s enhanced thrust and efficiency make it a preferred choice for launching Earth observation satellites, communication systems, and interplanetary missions.

The upcoming launch of Proba-3, a European Space Agency mission aimed at testing formation flying technology for solar observations, will leverage the PSLV-XL’s robust design.
By utilising this advanced variant, Isro ensures that Proba-3 can be deployed with precision and reliability.
In addition to its increased payload capacity, the PSLV-XL maintains the same four-stage launch system as the regular PSLV. This includes a combination of solid and liquid fuel stages, providing a balanced approach to propulsion and manoeuvrability throughout the mission.
As Isro prepares for the Proba-3 launch, anticipation builds around the potential scientific advancements that will emerge from this collaboration.