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सेमिनार: अंग्रेज़ी सीखने का अवसर (23 सितंबर: दोपहर 3 बजे)
India Puts 6 Singapore Satellites into Orbit
Dec 18, 2015

On 16 December, The Indian Space Research Organisation (ISRO) successfully launched six Singapore satellites. Besides, the national space agency also tested the fourth stage of its PSLV rocket. The test to restart the fourth stage of the PSLV rocket would help the country in its future launches while attempting to launch multiple satellites in different orbits. The four-second firing test is a success. This test will help us when we launch multiple satellites with a single rocket but want to place them in different orbits.

Key Features

  • ISRO’s PSLV C-29 rocket lifted off from the first launch pad of the Satish Dhawan Space Centre, Sriharikota and in about 21 minutes, it placed all six Singapore satellites in the intended orbit.

  • You can call it coincidence or otherwise, the launch of six Singapore satellites came in the year when Singapore is celebrating its 50 years of Independence and 50 years of Indo-Singapore diplomatic ties. 

  • Though the sky was partially cloudy at dusk, most of the stage separation of the rocket was clearly visible to the naked eyes from the Media Centre here, even as the spacecraft was cruising towards the intended orbit, several kilometres away from the Earth’s surface.

  • Besides the primary payload 400-kg weighing TeLEOS-1—Earth observation satellite, ISRO placed in orbit VELOX-CI (123 kg) micro-satellite, VELOX-II (13 kg) 6U-Cubesat technology demonstrator, Athenoxat-1 nano-satellite; Kent Ridge-1 (78 kg) micro-satellite and Galassia (3.4 kg) 2U-Cubesat. 

  • All the six Singapore satellites were put into orbit some 21 minutes after the lift-off at an altitude of 550 km.

In December last year, ISRO while testing the experimental flight of the Geosynchronous Satellite Launch Vehicle (GSLV) Mark III, also tested the re-entry of its unmanned crew module on a suborbital trajectory.

ISRO has launched 17 foreign and four Indian satellites this year, including its GSAT-15 which was launched from French Guiana in November. 

With this, the Antrix Corporation, the commercial arm of ISRO, has provided launch services on-board the PSLV for 57 customer satellites from 20 countries.

This year alone ISRO has launched a total of 17 satellites of foreign countries.

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