On May 18, 2025, ISRO successfully launched the EOS-09 satellite using the PSLV-C61 rocket from the Satish Dhawan Space Centre in Sriharikota. This mission marks ISRO’s 101st satellite launch and enhances India’s Earth observation capabilities, particularly for all-weather surveillance and disaster management.

Key Points:

• EOS-09 (also known as RISAT-1B) is a radar imaging satellite weighing approximately 1,696 kg, placed into a sun-synchronous polar orbit.
• The satellite is equipped with a C-band synthetic aperture radar (SAR) allowing day-and-night, all-weather Earth observation.
• EOS-09 supports applications in agriculture, forestry monitoring, disaster management, urban planning, and national security.
• The PSLV-C61 mission was the 63rd flight of the PSLV and the 27th using the PSLV-XL configuration.
• EOS-09 complements earlier satellites like RISAT-1 and improves India’s surveillance and real-time remote sensing capabilities, especially along borders and coastal regions.