FOTON-M 4, also known as Foton-M No. 4, is a satellite operated by TSSKBP and manufactured under the Yantar bus configuratioon for micro-gravity missions. Launched on July 18, 2014, from the TYMSC launch site using Soyuz-2-1A at LC31, this satellite has dimensions of 6.5 meters in length and diameter, with a span of 6.5 meters. It weighs approximately 2,515 kilograms both at launch and dry mass, featuring deployable solar arrays for power generation along with batteries. The spacecraft is designed to operate for six months, equipped with a sphere + cone-cyl+2 pan shape configuration, aiming to conduct micro-gravity research as its primary mission purpose.