Electro-L N4

Electro-L N4 is the fourth satellite in Russia's Electro-L geostationary operational meteorology programme, operated by Roshydromet. The satellite launched 5 February 2023 and is stationed at 165.8 degrees East geostationary orbit, extending the Electro-L constellation's coverage into the Eastern Hemisphere.^[1]

The primary Earth-observation payload is the MSU-GS multispectral spin-scan imager, which provides full-disc visible and infrared imagery for weather nowcasting, sea surface temperature retrieval, atmospheric motion vector derivation, and broadband radiation monitoring. Roscosmos published initial instrument imagery shortly after launch confirming payload activation.^[2] Additional payloads include a data collection system, search-and-rescue relay, and the GGAK-E space-weather package.

The satellite operates at 35,786 km altitude in geostationary orbit. WMO OSCAR lists the mission as operational with an expected service life to at least 2033.^[3]