India chose a much lower orbit of less than 300 kilometres during Mission Shakti for "capability demonstration" and to avoid any threat of debris to global space assets, DRDO Chairman G Satheesh Reddy said Saturday.
"The test happened as per design".
"We do not need any more tests in this orbit now". The guidance and control algorithm has been developed to do interception at 1,000 km above the earth. Moreover, the International Space Station was not directly above the collision spot but in an orbit above the North Atlantic Ocean, over French Guyana, when India's ASAT test took place over the Bay of Bengal, Reddy said.
Elaborating further about the A-Sat test conducted on March 27, he said, "The interceptor that has been used for this goal is a three stage vehicle with two stages of solid propellant and then a kill vehicle". "The country has shown ground-based direct hit deterrence capability, it works for the defence also", Reddy added. "Best way of defence is to have deterrence", Reddy said.
Reddy was addressing a press briefing wherein he emphasised the significance of "Mission Shakti" operation.
On the timing of the test, Deputy National Security Adviser Pankaj Saran said it was a "technologically and scientifically driven one".
"400 pieces of orbital debris from the test have been identified, including debris that was traveling above the International Space Station which is a awful, bad thing", Reuters quoted NASA administrator Jim Bridenstine as saying Monday. Statement by the U.S. state department is the USA official position.
"Some debris going up could be a possibility, as per our simulation also". Some part of the debris has decayed already.
The Pentagon said on Thursday that it stood by its assessment that debris from an Indian anti-satellite (ASAT) weapons test would eventually burn up in the atmosphere, even after NASA's administrator warned of the danger the debris posed. The challenge in the mission is the hit to kill mechanism which has to be very very good.
Nearly all the technologies used for the ASAT test were indigenously developed with some 50 industries contributing components for the 13 metre missiles weighing 19 tonnes. Some 150 scientists worked round-the-clock and some 2,000 components were sourced from 50 private industries.