With reference to `Astrosat’, the astronomical observatory launched by India, which of the following statements is/are correct?
- Other than USA and Russia, India is the only country to have launched a similar observatory into space.
- Astrosat is a 2000 kg satellite placed in an orbit at 1650 km above the surface of the Earth.
Select the correct answer using the code given below.(2016)
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 and 2
Astrosat is India’s first dedicated multi-wavelength space telescope. It was launched on a PSLV-XL on 28 September 2015. With the success of this satellite, ISRO has proposed launching AstroSat-2 as a successor for Astrosat.
The 1,513 kg-weighing cuboid-shaped satellite would be eventually fine-tuned into 650 km above the Earth’s surface. The satellite can perform simultaneous multi-wavelength observations of various astronomical objects. The sun and star sensors, besides the gyroscopes, would provide orientation reference to the satellite, which has a mission life of five years.