PSLV-C56: ISRO Launches Seven Singaporean Satellites, Including DS-SAR, On 90th Space Mission

<p><span style="font-weight: 400;"><strong>PSLV-C56:</strong> The Indian Space Research Organisation (ISRO) launched the PSLV-C56 mission, the Indian space agency's 90th mission, on July 30, 2023, at 6:30 am IST. The Polar Satellite Launch Vehicle (PSLV) blasted off into space with seven Singaporean satellites, including DS-SAR, the primary satellite for the mission. Therefore, the PSLV-C56 mission is also known as the DS-SAR mission. The satellites were launched from First Launch Pad, Satish Dhawan Space Centre, Sriharikota, Andhra Pradesh. </span><span style="font-weight: 400;">The mission was performed in collaboration with New Space India Limited (NSIL).</span></p> <p><span style="font-weight: 400;">PSLV-C56, the 58th flight of the PSLV, will inject the seven satellites into a 535-kilometre circular orbit, and at an inclination of five degrees.</span></p> <p><span style="font-weight: 400;">DS-SAR is a 360-kilogram satellite developed through a partnership between the Defence Science and Technology Agency (DSTA), an agency under the Government of Singapore, and ST Engineering, a Singaporean engineering and technology group. Six co-passenger satellites were launched atop PSLV-C56. These are: Velox-AM, ARCADE, SCOOB-II, NuLIoN, Galassia-2, and ORB-12 Strider, ISRO said in a mission update. ARCADE stands for Atmospheric Coupling and Dynamics Explorer.&nbsp;</span></p> <p><span style="font-weight: 400;">Velox-AM, ARCADE, and SCOOB-II have been developed by Nanyang Technological University, Singapore; NuLIoN has been developed by NuSpace, an aerospace company in Singapore; Galassia-2 is developed by the National University of Singapore; and ORB-12 Strider is developed by Aliena, a space-tech company in Singapore.&nbsp;</span></p> <p><span style="font-weight: 400;">DS-SAR consists of a synthetic aperture radar payload developed by Israel Aerospace Industries. The function of the synthetic aperture radar is to monitor the weather the entire day, and capture images at one-metre resolution. These satellite images will serve the purposes of different agencies within the Government of Singapore. Meanwhile, ST Engineering will use the DS-SAR satellite to provide geospatial services to commercial customers.</span></p> <p><span style="font-weight: 400;">According to ISRO, Velox-AM is a 23-kilogram microsatellite which will be launched with the purpose of technology demonstration; ARCADE is an experimental satellite; SCOOB-II is a nanosatellite and will be used for technology demonstration; NuLIoN is an advanced nanosatellite that will enable seamless "Internet of Things" connectivity in urban and remote locations; Galassia-2 is a nanosatellite that will orbit Earth at low-Earth orbit; and ORB-12 Strider is a satellite developed as part of an international collaboration.&nbsp;</span></p> <p><span style="font-weight: 400;">The lift-off mass of the launch vehicle was 228.642 tonnes, and the vehicle height is 44.4 metres.</span></p>

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