What is the major benefit of the Indian Data Relay Satellite System (IDRSS)?
Show answer & explanation
Correct answer: D
Explanation
Answer: It enables real-time communication with satellites in Low Earth Orbit and with astronauts.
Explanation:
The Indian Data Relay Satellite System (IDRSS) is a game-changer project by ISRO. Currently, when an Indian satellite is in Low Earth Orbit (LEO), it can transmit data only when it is within the direct line of sight of an Indian ground station. This results in 'blackouts' or delays in data reception.
Under the IDRSS, satellites will be deployed in a high Geostationary Orbit (GEO); these satellites will continuously receive data from LEO satellites (such as remote sensing satellites) and immediately relay it back to Earth. The most significant benefit of this system lies in the Gaganyaan mission, where maintaining 24/7, real-time communication with astronauts is imperative for their safety. This system will make India self-reliant in the realm of space communication, placing it in the same league as nations like the USA, Russia, and China.
Additional Points:
Coverage: A constellation of two IDRSS satellites will provide near-global coverage in space, thereby reducing dependence on ground stations located abroad.
Applications: It can be utilized for military surveillance, disaster management, and for relaying data during the initial phases of deep-space missions.
Launch: Plans are in place to launch these satellites using heavy-lift rockets, such as the GSLV Mk III (LVM3).
Potential Exam Questions and Answers:
Question: In which orbit are the IDRSS satellites positioned?
Answer: Geostationary Orbit (approximately 36,000 km in altitude).
Question: What is the name of India's first manned space mission that will be supported by the IDRSS?
Answer: The Gaganyaan Mission.