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SWFO-L1 NOAA’s First Satellite Dedicated to Space Weather Observations
NOAA’s Compact Coronagraph (CCOR): A Sneak Peak into the Future of Space Weather
NOAA's Compact Coronagraph (CCOR): Transforming Space Weather Forecasts
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John Jones-Bateman
202-242-0929
NOAA’s Satellite and Information Service
john.jones-bateman@noaa.gov
Silver Spring, MD.
Abbey Interrante
301-201-0124
Heliophysics Public Affairs Officer/NASA Headquarters
abbey.a.interrante@nasa.gov
Washington, DC.
Leejay Lockhart
321-747-8310
Office of Communications Public Affairs Officer/ NASA’s John F. Kennedy Space Center
leejay.lockhart@nasa.gov
Merritt Island, FL.
Sarah Frazier
202-853-7191
Heliophysics Communications Manager/NASA’s John F. Kennedy Space Center
sarah.frazier@nasa.gov
Lanham, MD
SWFO-L1 Quick Facts
Scheduled Launch Date and Location
SWFO-L1 successfully launched on September 24, 2025 at 7:32 a.m. EDT from Kennedy Space Center, Florida on a SpaceX Falcon 9 rocket.
SWFO-L1 is a critical operational mission that launched as a secondary rideshare alongside NASA’s research missions: the Interstellar Mapping and Acceleration Probe (IMAP), which was the primary payload, and the Carruthers Geocorona Observatory.
Mission
Monitor space weather from the Sun-Earth line at L1 for 24/7 operations to help protect critical infrastructure, the economy, and national security. By detecting solar storms in advance, the observatory will serve as an early warning beacon for potentially disruptive space weather events.
Spacecraft
Bus designed for operational space weather missions by BAE Systems
Launch Vehicle
SpaceX Falcon 9
Primary Instruments
Solar Wind Plasma Sensor (SWiPS), SupraThermal Ion Sensor (STIS), Magnetometer (MAG), and Compact Coronagraph (CCOR)
Orbit
Lagrange Point 1 – approximately one million miles from Earth.
Primary Measurements
Solar wind, thermal plasma, the magnetic field, and detection of coronal mass ejections.
Observational Mitigation. An Urgent Need for Critical Continuity
SWFO-L1 is the first of a next generation of observatories to replace space weather monitoring for operations at Lagrange Point 1. This fills a continuity gap that allows for the decommissioning of aging legacy satellites, that are operating beyond intended design life and with limited remaining resources (e.g. fuel depletion):
- ESA-NASA’s Solar and Heliospheric Observatory (SOHO) launched in 1995
- NASA’s Advanced Composition Explorer (ACE) launched in 1997
- NOAA’s Deep Space Climate Observatory (DSCOVR) launched in 2015
Benefits
The SWFO-L1 observatory is the first NOAA satellite designed specifically for and fully dedicated to continuous, operational space weather observations.
SWFO-L1 will monitor solar eruptions and serve as an early warning beacon for destructive space weather events that could impact our technological dependent infrastructure and industries.
The SWFO-L1 observatory will constantly stream data down to Earth without interruption and obstruction, offering improved performance over older instruments and faster delivery of observations to NOAA ‘s National Weather Service Space Weather Prediction Center (SWPC).
News
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Announcement
The Solar Wind Plasma Sensor (SWiPS) onboard the Space Weather Follow On – Lagrange 1 (SWFO-L1)… -
Announcement
The Magnetometer (MAG) onboard the Space Weather Follow On – Lagrange 1 (SWFO-L1) observatory is… -
Announcement
The Suprathermal Ion Sensor (STIS) onboard NOAA's Space Weather Follow On – Lagrange 1 (SWFO-… -
Feature Story
NOAA’s Space Weather Follow On – Lagrange 1 (SWFO-L1) satellite has arrived at the Astrotech Space…