Finally, I have some data Thank you!no we dont have our own till now. but we are working on it.
The ISRO’s Space Applications Centre in Ahmedabad is developing prototypes of atomic clocks, along with the CSIR’s National Physical Laboratory in New Delhi, Dr. Kiran Kumar said on the sidelines of an event organised by the Metrology Society here.
“We still have to make qualified and flight-worthy versions. Our next generation navigation satellites will carry our own clocks” when they start replacing the IRNSS-1 series after their life of 10 years, he said.
http://www.thehindu.com/news/nation...ocks-for-use-on-satellites/article7229191.ece