ISRO Launches EOS-05: India's First Geosynchronous Earth-Imaging Satellite

Gist The Indian Space Research Organisation ISRO has successfully launched the EOS-05 , marking India's first dedicated earth-imaging satellite destined for a geosynchronous orbit. By trading the ultra-fine detail of low-earth orbits for the ability to maintain a continuous, fixed gaze over the subcontinent, the satellite fundamentally changes how India monitors its landmass. For civil services aspirants, this shift is critical because it introduces real-time tracking for fast-changing events like natural disasters, agricultural fires, and strategic security threats, bridging a major gap in the country's space-based surveillance infrastructure. Background Historically, India’s earth-observation EO satellites have been placed in low, polar, or sun-synchronous orbits located a few hundred kilometres above the Earth. While low-earth orbit satellites capture ultra-fine spatial details, they are constantly moving and only image specific strips of territory on successive passes, resulting in a revisit time of several days for any given location. For continuous observation, ISRO previously relied on satellites stationed in geostationary orbits, specifically the INSAT-3D series , but these functioned strictly as weather satellites rather than dedicated earth-imaging platforms. A geosynchronous orbit is locked into…