PSLV-C55 mission: ISRO to carry out in-orbit scientific experiments using spent PS4

Last Updated22/04/2023

The Indian Space Research Organisation (ISRO)will carry out in-orbit scientific experiments
It will be done by using the spent PS4 (fourth and final stage of PSLV) as an orbital platform.
It has scheduled to launch the Polar Satellite Launch Vehicle C55 (PSLV-C55) mission
The PSLV-C55 will have Singapore’s TeLEOS-2 as primary satellite and Lumelite-4 as a co-passenger satellite.

It has the PSLV Orbital Experimental Module (POEM), where the spent PS4 of the launch vehicle would be utilised as an orbital platform
It will carry out scientific experiments through non-separating payloads.
According to the space agency, the POEM has seven experimental non-separable payloads.
The PSLV-C55 mission is a dedicated commercial mission.
The TeLEOS-2 and Lumelite-4 satellites are intended to be launched into an eastward low inclination orbit.

It is developed under a partnership between DSTA (representing the Government of Singapore) and ST Engineering.
It will be used to support the satellite imagery requirements of various agencies within the Government of Singapore after deployment
It will be able to provide all-weather day and night coverage
It will be capable of imaging at 1m full-polarimetric resolution.