Astrosat delivers first Astronomer's telegram to ISRO
The SSM was pointed to GRS 1915+105, an X-ray binary star system which features a regular star and a black hole, and caught it exhibiting the ‘beta’ class of variability on 14 October 2015.
Oct 21, 2015, 19:16 PM ISTAstrosat launch: India joins elite club with first space observatory
The Indian Space Research Organisation (ISRO) on Monday successfully launched its first space observatory 'Astrosat' into the orbit.
Sep 29, 2015, 10:58 AM IST