Stellar feat

Print edition : March 17, 2017

The launch of the PSLV-C37 from Sriharikota on February 15. Photo: ARUN SANKAR/AFP

The successful test firing of the cryogenic stage, C-25, for its full duration of 640 seconds, at the ISRO Propulsion Complex at Mahendragiri in Tirunelveli district, Tamil Nadu. Photo: COURTESY ISRO

ISRO Chairman A.S. Kiran Kumar and IPRC Director P.V. Venkitakrishnan addressing mediapersons at the ISRO Propulsion Complex after the successful cryogenic upper stage test on February 17. Photo: BY SPECIAL ARRANGEMENT

ISRO puts 104 satellites into orbit in a single launch, in itself an achievement, but the real challenge was to release them in a predetermined sequence and time frame, ensuring that they did not collide.
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