{"id":44110,"date":"2019-04-02T19:00:32","date_gmt":"2019-04-02T13:30:32","guid":{"rendered":"https:\/\/blog.forumias.com\/?p=44110"},"modified":"2019-04-02T16:16:04","modified_gmt":"2019-04-02T10:46:04","slug":"7-pm-pslv-c45-emisat-mission-2-april-2019","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/7-pm-pslv-c45-emisat-mission-2-april-2019\/","title":{"rendered":"7 PM | PSLV-C45\/EMISAT Mission | 2 April, 2019"},"content":{"rendered":"
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Read\u00a0In-depth analysis of all the Editorial<\/strong>s<\/strong>\u00a0here<\/strong><\/a><\/p>\n

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Context<\/strong><\/p>\n

PSLV-C45 has successfully injected the ISRO-made EMISAT in a 748-km orbit as well as 28 international satellites in a 504-km orbit<\/p>\n

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Key facts about ISRO PSLV-C45\/EMISAT Mission<\/strong><\/p>\n

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  1. Three different orbits:<\/strong> It was the first time ISRO launched a rocket that injected satellites in three different orbits. ISRO holds the world record for carrying the number of satellites on a single launch vehicle \u2014 104 on PSLV C-37 in February 2017. However, so far, these satellites have been ejected in two different orbits at the most.<\/li>\n
  2. Fourth stage of rocket:<\/strong> The fourth stage will not have the usual life of a satellite. However, ISRO gives some life to it and will function as a satellite itself for some time. The PSLV-C45 is the first launch vehicle to use solar panels in the fourth stage rocket (PS4). It can remain alive only for sometimes as it is not equipped with a lot of other things that enable a satellite to exist for longer duration in outer space, like a radiation shield.<\/li>\n
  3. Four straps on Motors:<\/strong> Strap-ons are booster rockets attached externally to the main rocket, and provide additional thrust, or energy, by firing themselves midway during the flight. In earlier flights, ISRO has used two or six strap-on motors. The four extra-large strap-ons used this time reduced the overall weight while still delivering the power equivalent to six motors.<\/li>\n
  4. Public \u2013 Private linkages:<\/strong> Nearly 95 per cent of the hardware for this mission was fabricated outside ISRO, that is industry. Nearly 60-70 per cent of the satellite components were fabricated outside ISRO.<\/li>\n
  5. EMISAT:<\/strong> It is the first Electronic intelligence\/surveillance satellite, EMISAT has been developed in India jointly by ISRO and Defence Research and Development Organization (DRDO).<\/li>\n
  6. Equipment of other research organisation:<\/strong> This is the first time ISRO provide a micro-gravity environment for research organisations and academic institutes to perform experiments.<\/li>\n<\/ol>\n
    The fourth stage are three scientific instruments made by three laboratories for three different applications
    \n\u2022 an automatic identification system (AIS) developed by ISRO for maritime applications
    \n\u2022 an automatic packet repeating system (APRS) developed by AMSAT or Radio Amateur Satellite Corporation, India, to assist amateur radio operator and
    \n\u2022 an Advanced Retarding Potential Analyser for Ionospheric Studies (ARIS) made by the Indian Institute of Space Science and Technology (IIST) for atmospheric studies.<\/div>\n

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    What is EMISAT?<\/strong><\/p>\n