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What was the name of the first spacecraft launched by India in 1975?
1. Bhaskar-I
2. Aryabhata
3. Apple
4. Rohini

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Correct Answer - Option 2 : Aryabhata

The correct answer is ​Aryabhata.

  • India’s first indigenously-built satellite ‘Aryabhatta’ was launched on 19 April 1975.
  • ‘Aryabhata’ satellite
    • The Aryabhatta was built by the Indian Space Research Organisation (ISRO). It was the country’s first artificial satellite. It was named after Aryabhatta, the 5th-century Indian mathematician and astronomer.
    • It was launched using a C-1 Intercosmos launch vehicle from Kapustin Yar, which is a Russian rocket launch and development site.
    • There was an agreement between India and the USSR as per which the USSR could utilise Indian ports to track ships and launch vessels in return for which the USSR would launch Indian satellites.
    • The agreement was signed in 1972 when UR Rao was the Chairman of ISRO.
    • The satellite had a launch mass of 360 kg with a power of 46 watts. Its orbit was for 96.46 minutes with an apogee of 619 km and a perigee of 563 km.
    • The purpose of the mission was research in astrophysics such as conducting experiments in X-ray astronomy, Solar Physics and Aeronomics.

  • Bhaskara-I Satellite
    • Bhaskara-I was the first experimental remote sensing satellite built by ISRO.
    • It was named after the 7th-century Indian mathematician Bhaskara-I (not to be confused with the 12th-century mathematician Bhaskara-II).
    • Bhaskara-I is credited to be the first scholar to write numbers in the decimal number system.
    • The chief purpose of the satellite was to collect data on hydrology, oceanography, forestry and telemetry.
    • The satellite, which weighed 442 kg at launch, was launched by the Intercosmos launch vehicle, C-1 Intercosmos from Volgograd Launch Station, Russia.

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