PSLV-C53/DS-EO Mission

• 23 Jun 2022

ISRO will launch PSLV-C53/DS-EO mission on 30^th 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.