EO·Atlas
WSF-M1
WSF-M1 is the first satellite of the US Department of Defense Weather System Follow-on Microwave (WSF-M) programme, operated by the US Space Force. It was launched on 2024-04-11 and placed in a sun-synchronous orbit at 854 km altitude with a 06:00 descending equator crossing time.[1] The Space Systems Command declared operational acceptance and initial operational capability (IOC) in April 2025.[2] WSF-M1 carries a microwave imager payload that supports retrieval of ocean surface vector winds, tropical cyclone intensity estimation, sea-ice extent, soil moisture, snow water equivalent, and other environmental parameters.[3] The satellite also hosts an energetic charged particle sensor covering the local space weather environment.[3] The mission replaces environmental sensing capability previously provided by DMSP and supports global military weather and space-based environmental monitoring. Tasking is not available commercially.[3]
Supply chain position
- [1]WMO OSCAR: WSF-M1agency doc2026-06-14
- [2]SSC: WSF-M operational acceptance and IOCagency doc2026-06-14
- [3]Space Systems Command WSF-M fact sheetagency doc2026-06-14
How to cite this page
Plain text
WSF-M1. EO-Atlas, SpectraWorks B.V. https://eo-atlas.org/missions/wsf-m1 (CC BY 4.0)
BibTeX
@misc{eoatlas:missions:wsf-m1,
title = {WSF-M1},
author = {{EO-Atlas}},
publisher = {SpectraWorks B.V.},
note = {CC BY 4.0},
url = {https://eo-atlas.org/missions/wsf-m1}
}