As the Indian Space Research Organisation (ISRO) has reached another milestone  with the launch of the Polar Satellite Launch Vehicle (PSLV)-C35.  This  innovative and successful mission has made every Indian and India proud worldwide. Here are some quick facts about this successful mission, read them and celebrate this joyous moment…


1)   Satellites in two different orbits 

ISRO  deployed eight satellites in two different orbits during a single launch. It is yet another important  milestone in its low-cost space mission.


2 The longest and most complex mission 

As eight satellites were to be put into two different orbits, it was to be the longest and most complex mission till now. The mission life of the satellite is 5 years.


3) The Strong SCATSAT-1

The 371-kg SCATSAT-1 was launched within 17 minutes of takeoff and will study oceans and help in weather forecasting, including cyclone detection. Besides SCATSAT-1, the others included are PRATHAM and PISAT  from India,three from Algeria and one each from Canada and the US.



4) Satellites Placement-  

SCATSAT-1 will be placed into a 730 km Polar SSO , however the two student-made satellites and five foreign satellites will be placed into a 689 km polar orbit.


5)  Indian Student-made Satellites

Two of the Indian satellites are student-made. Pratham, a 10-kg satellite is developed by students of Indian Institute of Technology (IIT) Bombay and  5.25-kg PISAT is made by students of Bengaluru’s PES University.


6) Powerful Pratham & PISAT 

Pratham will study the electron count in space which will help to improve the accuracy of the Global Positioning System in India, and also predict tsunamis. On the other hand PISAT will take pictures of the earth.


7) 9 Years Of Hard Work 

It took students close to nine years to make the launch of the Pratham a reality. The Pratham has been India’s first ever student-led satellite program. Interestingly, the Pratham had once missed its launch deadline four years ago in 2012 due to administrative delays and technical glitches.


8) PSLV c35

The total weight of all the eight satellites on-board PSLV C35 is about 675 kg. The PSLV has launched 39 remote-sensing satellites for Isro, including the Mars mission of 2013  and this will also be the 15th flight of PSLV in ‘XL’ configuration with the use of solid strap-on motors.


9) ISRO’s Second League

This is also the second time that ISRO puts many satellites into different orbits during a single launch mission. In June this year,  ISRO successfully placed 20 satellites in orbits in one go.


10) The Longest PSLV Satellite Launch

The mission slated to carry out for two hours and fifteen minutes or more is the longest PSLV satellite launch mission of ISRO so far.



This mission was a  challenging two-in-one mission which has put India in a unique league of nations having the capability to achieve two different orbits in a single mission. It will be interesting to see two more launches which are scheduled next month  as IRSO is  now targeting the “magical number” of 100.

Image Credits– Image-01, 1,2,3,4,5,6,7,8,9,10 are Google Images


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