Medha IAS

PSLV-C53/DS-EO Mission


ISRO will launch PSLV-C53/DS-EO mission on 30th June, 2022 from Satish Dhawan Space Centre, Sriharikota.


(Image Source: ISRO)

  • PSLV-C53 is the second dedicated commercial mission of NewSpace India Limited (NSIL).
  • It will launch three foreign satellites and demonstrate the utilization of the spent upper stage of the launch vehicle.

Foreign Satellites

  • PSLV-C53 will carry three satellites - DS-EO, a 365 kg and NeuSAR, a 155 kg satellite both belonging to Singapore and built by Starec Initiative, Republic of Korea. Third satellite is a 2.8 kg Scoob-1 of Nanyang Technological University (NTU), Singapore.

Technology Demonstration

  • The mission proposes to demonstrate the utilization of the spent upper stage of the launch vehicle as a stabilized platform for scientific payloads subsequent to the separation of the satellites.
  • The PSLV Orbital Experimental Module (POEM) activity will perform in-orbit scientific experiments using the spent PS4 stage as an orbital platform.
  • It is first time that PS4 stage would orbit the earth as a stabilized platform.
  • Attitude stabilization is achieved using a dedicated NGC system.
  • POEM derives the power from the solar panels mounted around the PS4 tank and a Li Ion battery.
  • It navigates using four sun sensors, a magnetometer, gyros & NavIC.
  • It carries dedicated control thrusters using Helium gas storage.
  • It is enabled with telecommand feature.
  • POEM carries six payloads including two from Indian Space Start-ups M/s Digantara and M/s Dhruva Aerospace, enabled though IN-SPACe and NSIL.