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PSLV-XL | EOS-09 (RISAT-1B)

PSLV-XL | EOS-09 (RISAT-1B)

Status: Failure  |  Launched: May 18, 2025 00:29 UTC

Failure reason: 3rd stage failure during burn.

Launch Provider & Rocket

Mission

RISAT-1B is the third in the series of radar imaging RISAT-1 satellites of ISRO using an active C-band SAR (Synthetic Aperture Radar), providing all-weather as well as the day-and-night SAR observation capability in applications such as agriculture, forestry, soil moisture, geology, sea ice, coastal monitoring, object identification, and flood monitoring, in addition to military surveillance. The RISAT-1 series is developed, manufactured and integrated by ISRO. The 3-axis stabilized spacecraft bus consists of a hexagonal prism shape build around a central cylinder. Most of the spacecraft subsystems and the payload are integrated in the prism structure and the central cylinder. The solar panels and some subsystems are mounted on the cube-shaped section of the spacecraft.

  • Type: Government/Top Secret
  • Orbit: Sun-Synchronous Orbit (SSO)

Launch Site

  • Pad: Satish Dhawan Space Centre First Launch Pad
  • Location: Satish Dhawan Space Centre, India
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Launch data sourced automatically from the Launch Library 2 API. Last refreshed: 2026-08-22T21:02:10.804714+00:00.