SOLAR-1

SOLAR-1 Latest News

The United States recently activated SOLAR-1, its first dedicated space weather monitoring satellite, designed to provide faster warnings of solar storms that can affect GPS, communications, satellites and power grids.

About SOLAR-1

• It is the first United States satellite designed exclusively for continuous operational space weather observation. 
• It is operated by the U.S. National Oceanic and Atmospheric Administration (NOAA). 
• Originally named Space Weather Follow On – Lagrange 1 (SWFO-L1), the satellite was renamed to Space Weather Observations at L1 to Advance Readiness – 1 (SOLAR-1).
• Primary Mission: Continuous monitoring of solar activity and space weather. 
• Launch Date: 24 September 2025
• Launch Vehicle: SpaceX Falcon 9
• Orbit: 
  • Positioned at the Sun-Earth Lagrange Point 1, about 1.6 million kilometres from Earth towards the Sun, SOLAR-1 enjoys a constant, unobstructed view of solar activity.  
  • From this vantage point, it continuously measures solar wind and tracks coronal mass ejections (CMEs) before they reach Earth. 
  • The location’s gravitational stability allows the spacecraft to maintain position with minimal fuel use. 
• It uses a special telescope, called a compact coronagraph, to monitor the sun’s activity in addition to a suite of instruments to make real-time measurements of the solar wind.  
• It can transmit CME images to NOAA’s Space Weather Prediction Center within 30 minutes, compared to up to eight hours for older systems.  
• Its enhanced capabilities are expected to improve aurora forecasts and strengthen the protection of power grids, navigation, communications, and space missions from severe space weather. 

News: MC

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