With references to ' astrosat' the astronomical observatory launched by india, which of the following statemens is/are correct?
1. other than USA and Rusia, India is the only country to have launched a similiar observatory into space
2. astrosat is a 2000 kg satelite placed in an orbbit at 1650 km above the surface of the earth
select the correct answer using the code given below
a. 1 only
b. 2 only
c. both 1 and 2
d. neither 1 or 2