With reference to 'Astrosat', the astronomical observatory launched by India, which of the following statements is/are correct? 1. Other than USA and Russia, India is the only country to have launched a similar observatory into space. 2. 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.

Option (d) is correct because both statements are factually inaccurate: India is not the third country to launch a space observatory (Japan and the European Space Agency preceded it), and Astrosat has a mass of approximately 1513 kg orbiting at an altitude of 650 km, not 1650 km. Statement 1 is the most tempting error because India was indeed the first *developing* nation to launch such an observatory, leading many to overlook established programs like JAXA (Japan). The core concept being tested is the specific technical specifications and the relative global standing of ISRO’s landmark missions.