COSMOS 1500 (also known as Kosmos-1500) is an Ocean Observation satellite launched on September 28, 1983, from the Plesetsk Cosmodrome LC32/1 launch site using a Tsiklon-3 launch vehicle. Manufactured by YUZH for GMS/YUZH, the satellite has dimensions of 5 meters in length and 2.4 meters in diameter with a span of 21.5 meters due to its solar arrays. It weighs 1900 kilograms both at launch and dry mass. The satellite is equipped with RLSBO (3.2 cm), RM-0.8, three-channel MWR (0.8, 1.35, and 8.5 cm), and RTVK equipment for its mission objectives. Its power supply consists of two deployable solar arrays and batteries. The shape of the satellite is described as cylindrical with two panels and antennas attached. It has a radar cross-section of 9.4498 square meters and was part of the Okean series, specifically designated as Okean-OE No. 1L for its mission to observe oceans.