COSMOS 1146 (also known as Kosmos-1146) is a satellite with the NORAD catalog ID 11632 and object identifier 1979-100A. It was launched on December 5, 1979, from the PLMSC launch site using LC132/2 as its launch pad. The launch vehicle was the Kosmos 11K65M. This satellite is a Taifun-1B bus and belongs to PVO (Soviet Air Defense Forces). It has dimensions of 2 meters in length, diameter, and span with a dry mass and launch mass both at 750 kilograms. The satellite's shape is spherical with a radar cross-section (RCS) of 3.3528 square meters. It was manufactured by YUZH and carries the Taifun-1B payload.