Dhruva Space, India’s first private space company, will soon test its deployers on an ISRO mission. ISRO has announced the launch of three satellites, “PSLV-C53” from Singapore on June 30, the second dedicated commercial mission of its commercial arm, NewSpace India Limited (NSIL).

The launch vehicle carrying the DS-EO satellite and two other co-carrying satellites is scheduled to lift off at 6:00 pm from the second launch pad at the Satish Dhawan Space Research Centre in Sriharikota. The 25-hour countdown to launch begins on June 29 at 5:00 pm.

According to news agency PTI, the mission is designed to orbit the DS-EO satellite and two other co-passenger satellites of Singapore’s ST Electronics. It is proposed to demonstrate the use of launch vehicles at a higher level as a stable platform for scientific payloads after satellite separation.

This will be the 55th mission for PSLV, the 15th using the PSLV-Core Alone variant, and the 16th PSLV launch from the second launch pad.

The fourth stage, 44.4 m high PSLV-C53 with a take-off mass of 228.433 t, will inject the DS-EO satellite into an orbit with a semi-major axis of 6948.137 + 20 km, a measured altitude of 570 km from the equator, and an inclination of 100 + 0.20.

The three satellites are – DS-EO, a 365kg and NeuSAR, a 155kg satellite, all belonging to Singapore and built by the Starec Initiative of the Republic of Korea, and the third satellite is the Nanyang Technological University’s (NTU) 2.8kg Scoob-1.

According to PTI, ISRO said the PSLV Orbiting Experiment Module (POEM) activity used the disused PS4-class as an orbiting platform for on-orbit science experiments, marking the first time the PS4-class orbited Earth as a stable platform.

The POEM carries six payloads, two from Indian space startups M/s Digantara and M/s Dhruva Aerospace, enabled through IN-SPACE and NSIL.