Space Weather Follow On Program | NESDIS | National Environmental Satellite, Data, and Information Service Official websites use .gov .gov website belongs to an official government organization in the United States. Secure .gov websites use HTTPS lock ) or means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. Space Weather Follow On Program The Program The Space Weather Follow On (SWFO) program sustains NOAA’s foundational set of space-based, space weather observations and measurements collected by legacy missions (DSCOVR and SOHO) to ensure continuity of critical space weather data. To achieve these objectives, the SWFO program is developing: Space Weather Follow On-Lagrange 1 (SWFO-L1) , NOAA’s first satellite dedicated to space weather observations, instruments to observe the Sun and space environment upstream of the Earth, including two compact coronagraphs (CCORs) that image the Sun’s corona, and a dedicated ground segment for operation of the SWFO-L1 satellite, acquisition of the SWFO-L1 data, and product generation and distribution of the SWFO-L1 and GOES-U CCOR data. Note to screen-readers: This page is using an IFrame for the content-area, and you screen reader may not be abel to see it on this website. For screen-reading purposes, please go directly to the IFrame's target page by going to Instruments will be hosted on two satellites: NOAA’s Geostationary Operational Environmental Satellite 19 (GOES-19) , launched on June 25, 2024, and NOAA’s SWFO-L1 observatory, a rideshare on the NASA Interstellar Mapping and Acceleration Probe (IMAP) mission , planned for launch in 2025. NOAA satellites will send space weather data to the SWFO Ground Segment , which includes processing units at NOAA’s Space Weather Prediction Center (SWPC) and National Centers for Environmental Information (NCEI). Explore Part of NOAA’s mission is to monitor space weather and provide timely, accurate warnings to help our nation prepare for and minimize potential impacts to the economy and to human health. The National Environmental Satellite, Data, and Information Service (NESDIS) develops and operates satellites and tools to collect information about solar phenomena before they reach Earth. NOAA’s Space Weather Prediction Center (SWPC) then uses this data to generate space weather forecasts, alerts, and warnings to the public and to customers in the US and around the globe who use this information to protect critical systems and reduce risks to personnel. SWFO-L1 Mission The SWFO-L1 objective is to orbit the Sun to collect data and measurements. L1 Mission SWFO-L1 Mission SWFO Instruments SWFO instruments will observe the Sun and space environment upstream of the Earth. The Instruments SWFO Instruments SWFO Coronagraph on GOES-19 Satellite CCOR-1 is designed to observe the solar corona, or outermost layer of the sun’s atmosphere. Coronagraph on GOES-19 SWFO Coronagraph on GOES-19 Satellite SWFO Ground Segment The Ground Segment is comprised of a SWFO Antenna Network with ground antennas distributed globally for real-time 24/7 data collection of SWFO-L1 data. Ground Segment SWFO Ground Segment Data Products & Science The following documentation is intended for users of the data and the broader public. View Documents Data Products & Science Imagery From World’s First Operational Space-based Coronagraph First images from the Compact Coronagraph, a powerful solar telescope onboard the new GOES-19 satellite. View Imagery Imagery From World’s First Operational Space-based Coronagraph SWFO-L1 Press Kit Materials and information related to the SWFO-L1 launch. View Materials SWFO-L1 Press Kit Latest News image Feature Story NOAA's Space Weather Mission: Protecting Artemis II Astronauts and Society Artemis II is planned as a 10-day crewed mission around the moon that marks humanity’s return to… April 2, 2026 image Announcement SWFO-L1, Renamed SOLAR-1, Reaches Final Destination One Million Miles from Earth On January 23, 2026, NOAA’s Space Weather Follow On – Lagrange 1 (SWFO-L1) observatory executed its… January 27, 2026 image Satellite Snapshots NOAA’s Compact Coronagraph Observes Stormy Sun Did you see the auroras? Our satellites certainly had an eyeful as they watched a powerful coronal… January 22, 2026 image Announcement NOAA Shares First SWFO-L1 Space Weather Data from SWiPS The Solar Wind Plasma Sensor (SWiPS) onboard the Space Weather Follow On – Lagrange 1 (SWFO-L1)… December 12, 2025 View More Space Weather