Meteor-M N2-4

Meteor-M N2-4 is the sixth flight unit of the Meteor-M series and seventh satellite of the Meteor-3M programme, operated by Roshydromet with participation from Roscosmos. Launched on 29 February 2024 into a sun-synchronous orbit at 820.7 km altitude with a 09:00 descending equator crossing time, the mission carries an extensive payload stack: an infrared sounder (IKFS-2), a multispectral imager (KMSS), a medium-resolution scanner (MSU-MR), a microwave radiometer-sounder (MTVZA-GY), a broadband radiometer (IKOR-M), a SAR instrument (MeteorSAR), a data collection relay (SSPD), and space-weather monitoring components (GGAK-M/RIMS-M, GGAK-E/SKIF-6, GGAK-E/GALS-E, SASR-Meteor). The mission supports atmospheric temperature and humidity profiling, sea surface temperature retrieval, vegetation and land surface monitoring, passive microwave sounding, SAR-based backscatter imaging, broadband radiation budget measurement, and real-time data access. WMO lists MSU-MR, MTVZA-GY, and SSPD data as available in real time via HRPT, selected data via LRPT, and DCP messages by onboard relay. WMO OSCAR lists the satellite as operational as of January 2026, with an end-of-life date recorded as 2029 or later.^[1][2]