Kobalt-M satellites are a type of Yantar satellite, Yantar-4K2M. They have the GRAU index 11F695M. They are optical reconnaissance satellites which use film. The satellite sends two film capsules to earth and returns to earth itself at the end of its mission. This has the disadvantage that the satellite's life is dependent on how much film it can carry, and information from the satellite is not obtained until the film canister has returned to earth and been developed.
Payloads are separated by bullets ( · ), launches by pipes ( | ). Manned flights are indicated in bold text. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in (brackets).