In a precision launch, Indian Space Research Organisation (ISRO) workhorse Polar Satellite Launch Vehicle (PSLV-C34) took off in clear skies from the second launch pad of Satish Dhawan Space Centre here, about 110 km from Chennai, at 9.26 AM and placed the new generation earth observation satellite( Cartosat-2 Series) and 19 others in the designated polar Sun Synchronous Orbit (SSO) 26 minutes later.
Launching 20 satellites in a single payload was like "allowing birds to fly in space", a beaming ISRO Chairman Kiran Kumar said, adding, "PSLV C-34 has done its job."
Earlier, ISRO had sent 10 satellites into orbit in a single mission in 2008. The record for the most number of satellites launched in a single mission belongs to Russia, which sent up 37 satellites in 2014. The US space agency NASA launched 29.
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"We have the current generation of earth observation satellite of Cartosat 2 series," he said, adding ISRO had done a "wonderful job". Cartosat also has strategic applications.
Prime Minister Narendra Modi while hailing ISRO's feat said, "20 satellites in a go! @isro continues to break new barriers. Hearty congratulations to our scientists on the monumental accomplishment".
"Our space programme has time and again shown the transformative potential of science and technology in people's lives", he said.
"Over the years, we developed expertise & capability to help other nations in their space initiatives. This is the skill of our scientists", he said in another tweet.
Two academic satellites are from Sathyabama University (Sathyabamasat) in Chennai and from College of Engineering (Swayam) at Pune.
Use of Cartosat 2 includes cartographic, urban and rural applications, coastal land use and regulation, utility management like road network monitoring and water distribution.
P Kunhikrishnan, Director, SDSC-SHAR, said that it was a
major accomplishment by PSLV in its 35th consecutive successful mission.
"PSLV has become a success symbol for ISRO and India. ISRO is adopting more and more professionalism," he said.
This is the 14th flight of PSLV in "XL" configuration known for its capacity to carry more load which uses 'solid strap-on motors'.
The total weight of all the 20 satellites carried onboard PSLV-C34 is about 1288 kg.
India has 11 operational earth observation satellites, including RESOURCESAT-1 and 2, CARTOSAT-1, 2, 2A, 2B, RISAT-1 and 2, OCEANSAT-2 are in orbit.
Beginning in 1988, ISRO had launched many remote sensing satellites (for earth observation) and the data are for varied use including agriculture, water and ocean resources besides disaster management.
"Our team ISRO could resolve it," he said, adding the order of precision was perfect and what ISRO achieved today showed it has enough expertise.
"With this we can make commitment for any complex type of missions and launch still larger number of satellites in a single mission since that much expertise is available."
Project Director, Cartosat 2 Series, Satyanand Rao said Cartosat 2 satellite was the fourth in the "Cartosat-2 family" which would have panchromatic and multispectral colour images in four bands. This was also the first satellite in the Indian Remote Sensing series with a new technology 'Time Delayed Integration Mode of Operation', enhancing imaging efficiency and imagine modes with respect to our earlier missions."
"The satellite is going to complete all its calibration activities and subsequently it will be ready to deliver data to users," he said.