Consider the following statements about Indian Regional Navigation Satellite System (IRNSS) : 1. IRNSS is a constellation of five satellites, which were launched by PSLV. 2. It is an independent regional navigation satellite system designed to provide position information in the Indian region. Which of the statements given above is/are correct?

Statement 1 is incorrect because the Indian Regional Navigation Satellite System (IRNSS), also known as NavIC, is a constellation of seven satellites, not five [1]. While the satellites in the constellation (IRNSS-1A through 1G) were indeed launched using the Polar Satellite Launch Vehicle (PSLV), the total count of the primary space segment is seven. Statement 2 is correct as IRNSS is an independent, autonomous regional navigation satellite system developed by India [1]. It is specifically designed to provide accurate real-time position, navigation, and timing information within the Indian region and an area extending approximately 1,500 km beyond its borders [1]. The system provides two types of services: the Standard Positioning Service (SPS) for all users and the Restricted Service (RS) for authorized users.

Sources

1. [1] https://www.sac.gov.in/SatNavApplications?lang=en