With reference to ‘Astrosat’, the astronomical observatory launched by India, which of the following statements is/are correct?
- Other than the 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.
Detailed Explanation:
Answer: Option 4 — Neither 1 nor 2
❌ Statement 1 – Incorrect: India is the 5th country to launch a space observatory, not the 3rd. USA, Russia, Japan, and Europe (ESA) had already launched similar observatories before AstroSat.
❌ Statement 2 – Incorrect: AstroSat has a mass of approximately 1513 kg (not 2000 kg) and was placed in a 650 km orbit (not 1650 km) above Earth's surface by PSLV-C30 in September 2015.
Question 2 of 3 ISRO and Indian Space Programme
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