The Indian Space Research Organisation (Isro), which has had a negligible year so far as launch missions go, is hoping to launch three Earth Observation Satellites (EOSs) in the last quarter of 2021.
While two of them — EOS-4 (Risat-1A) and EOS-6 (Oceansat-3) — will be launched using Isro’s workhorse PSLV, the third one, EOS-2 (Microsat), will be launched in the first developmental flight of the Small Satellite Launch Vehicle (SSLV), marking the beginning of a new class of launch vehicles in India.
Isro has completed SSLV Payload Fairing (SPLF) functional qualification test successfully and other testing activities are in progress. EOS-4 was to be originally launched in September, sources in Isro said, adding that the review committee had not cleared the satellite, which postponed the launch.
Isro chairman K Sivan told TOI: “The plan is to achieve those launches by the end of this year, but since we would be using some key indigenous systems like TR module, TWTA and circulators as part of our endeavour to reduce imports, we will be carrying out extensive tests to find if there are any technical issues. This may take some time.”
Source: TOI
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