India’s ISRO Launches DRDO EMISat Electronic Intelligence Satellite Abroad PSLV Rocket

The Indian Space Research Organisation (ISRO) has launched the DRDO EMISat Electronic Intelligence (ELINT) satellite abroad a PSLV rocket, on April 1.

The launch took place from the second launch pad at the Satish Dhawan Space Centre (SDSC) SHAR, Sriharikota at 9.27 a.m.

EMIsat, weighing 436kg, is intended for electromagnetic spectrum measurement and is meant for helping the Indian military locate hostile radars. EMISAT was released first 17 minutes into the launch at an orbit 749 km away.

During the mission named PSLV-C45, 28 international customer satellites and PS4 orbital platform (PS4-fourth stage) were also injected into their designated orbit. The other 28 international satellites — 25 3U type, two 6U type and one 2U type nano satellites — are from Lithuania (two), Spain (1), Switzerland (1) and the United States (24).

All these satellites were launched under commercial arrangements. The small satellites were released after about 40 minutes at a lower orbit of 504 km.

The PS4 orbital platform is envisaged to provide a microgravity environment for research organisations and academic institutes to perform experiments. In this mission, the PS4 hosts three payloads, namely, Automatic Identification System (AIS) from ISRO, Automatic Packet Repeating System (APRS) from AMSAT (Radio Amateur Satellite Corporation), India and Advanced Retarding Potential Analyzer for Ionospheric Studies (ARIS) from Indian Institute of Space Science and technology (IIST).

PSLV-C45 is the 47th mission of India’s PSLV (Polar Satellite Launch Vehicle) rocket.

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