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ISRO is set to launch 5 UK Satellites in Orbit

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  • ISRO (Indian space research organization) with its commercial arm named Antrix is going to launch five British Satellites that will be carried by Polar Satellite Launch Vehicle (PSLV ) on 10th july.
  • It will be launched from Satish Dhawan Space Centre (SDSC) in Sriharikota.
  • The Polar Satellite Launch Vehicle (PSLV), in its thirtieth flight (PSLV-C28), will launch three identical DMC3 optical earth observation satellites which are built by Surrey Satellite Technology Limited (SSTL), United Kingdom(UK).
  • High-end version of PSLV (PSLV-XL) will be used in this launch. Also, the four stage PSLV rocket will start its venture around 10 p.m.
  • Apart from it, two other auxiliary satellites are going to be carried with PSVL-C28 which are built in UK.

Those are as follows:-

  • CBNT-1, a technology demonstrator earth observation micro satellite built by SSTL.
  • De-OrbitSail, a technology demonstrator nano satellite built by Surrey Space Centre.


  • Overall lift-off mass of the five satellites is to about 1440 kg.
  • CBNT-1 weighs around 91 kg while De-OrbitSail is 7 kg.


  • Commercial purpose.
  • This is the heaviest commercial mission ever undertaken by Antrix/ISRO.


  • The main challenge was to accommodate the three DMC3 satellites each with a height of about 3 meter within the existing payload fairing of PSLV.
  • To mount these satellites onto the launcher called as L-adaptor and a triangular deck called Multiple Satellite Adapter-Version 2 (MSA-V2), were newly designed by ISRO for the first time for this specific purpose.


  • The DMC comprising of three advanced mini-satellites DMC3-1, DMC3-2 and DMC3-3.
  • It is designed to address the need for simultaneous high spatial resolution and high temporal resolution optical Earth Observation.
  • With a separation of 120° between them in a single Low-Earth Orbit plane, these satellites can image any target on the Earth’s surface every day.


  • To Survey the resources on earth and its environment.
  • To manage urban infrastructure and monitoring of disasters.


  • Indian space research organization-ISRO
  • Polar Satellite Launch Vehicle –PSLV
  • Satish Dhawan Space Centre-SDSC
  • Surrey Satellite Technology Limited-SSTL