Correct option is D
The correct answer is (D) 1983.
Explanation:
INSAT-1B was launched on August 30, 1983, by NASA using the Space Shuttle Challenger (STS-8 mission). It was India's second satellite in the Indian National Satellite System (INSAT) series, following INSAT-1A, which had failed.
Information Booster:
- INSAT-1B became fully operational in 1984 and significantly improved telecommunications, broadcasting, and meteorological services in India.
- It was a geostationary satellite with advanced transponders for better connectivity.
- The INSAT series is a key part of India's space program and has been continuously upgraded with newer satellites.
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