MetOp-SG B1

MetOp-SG B1 is a future European weather satellite, the first of the microwave imaging-focused B-type of the MetOp-SG series.^[1][2][3][4] It carries five instruments: a scatterometer for observing ocean-surface wind and soil moisture (SCA), a radio occultation sounder to measure atmospheric temperature and humidity (RO), a microwave imager to monitor precipitation and sea-ice extent (MWI), an ice cloud imager to measure water in clouds (ICI), and an Argos-4 data collection system (A-DCS).^[5][6][7] Its single solar panel wing is 11 m long with surface of 24 square meters and consists of four segments.^[8] The satellite is expected to launch in October 2026 on Ariane 62^{[9][10][11][8]} as the second satellite of the MetOp-SG series after MetOp-SG A1/Sentinel-5A launched in August 2025.^{[12][13][14][15][16]}