Names | SWFO-L1 |
---|---|
Mission type | Space weather |
Operator | NOAA |
Start of mission | |
Launch date | September 2025 (planned)[1] |
Rocket | Falcon 9 Block 5 |
Launch site | Cape Canaveral, SLC-40 |
Contractor | SpaceX |
Orbital parameters | |
Reference system | Geocentric orbit |
Regime | L1 |
Instruments | |
Solar Wind Instrument Suite (SWIS) Magnetometer Solar Wind Plasma Sensor (SWiPS) Compact Coronagraph (CCOR) Supra-Thermal Ion Sensor (STIS) | |
Space Weather Follow On program |
Space Weather Follow On-Lagrange 1 (SWFO-L1) is a future spacecraft mission planned to monitor signs of solar storms, which may pose harm to Earth's telecommunication network. The spacecraft will be operated by the National Oceanic and Atmospheric Administration (NOAA), with launch scheduled for no earlier than September 2025.[1] It is planned to be placed at the Sun–Earth L1 Lagrange point, a location between the Earth and the Sun. This will allow SWFO-L1 to continuously watch the solar wind and energetic particles heading for Earth. SWFO-L1 is an ESPA Class Spacecraft, sized for launch on an Evolved Expendable Launch Vehicle Secondary Payload Adapter (ESPA) Grande ring in addition to the rocket's primary payload.[2] The spacecraft's Solar Wind Instrument Suite (SWIS) which includes three instruments will monitor solar wind, and the Compact Coronagraph (CCOR) will monitor the Sun's surroundings to image coronal mass ejection (CME).[2] A CME is a large outburst of plasma sent from the Sun towards interplanetary space.
Together with space weather observation capabilities on the Earth-orbiting GOES-U satellite, SWFO-L1 constitutes the space segment of NOAA's Space Weather Follow On (SWFO) program. The aim of the SWFO program is to ensure the robust continuity of space-based measurement of the critical space weather environment.[3][4] All of the spacecraft located in L1 which are currently monitoring CMEs and the solar wind have operated beyond their design lifetime. SWFO-L1's SWIS instruments will replace ACE's and DSCOVR's monitoring of solar wind, energetic particles and the interplanetary magnetic field while CCOR will replace SOHO's LASCO (Large Angle and Spectrometric Coronagraph) imaging of CMEs.[2]