[Via Satellite 09-19-2014] The Indian Space Research Organization (ISRO) has released the Signal-in-Space Interface Control Document (ICD) for Standard Positioning Service (SPS) for the Indian Regional Navigation Satellite System (IRNSS). Currently under development, the IRNSS constellation will serve as India’s domestic Global Navigation Satellite System (GNSS). The first two of seven satellites, IRNSS 1A and IRNSS 1B were launched in 2013 and 2014 respectively.
The Signal-in-Space ICD for SPS provides information for research and development purposes to facilitate commercial applications for the satellites.
IRNSS is designed to provide a Standard Positioning Service (SPS) and a Restricted Service (RS). Once completed, it is expected to provide position data with accuracy of better than 20 meters in India — the primary service area. The constellation will also cover 1,500 km outside the country for extended regional coverage.
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