Kosmos 1684

Kosmos 1684 (Russian: Космос 1684 meaning Cosmos 1684) is a Soviet US-K missile early warning satellite which was launched in 1985 as part of the Soviet military's Oko programme. The satellite is designed to identify missile launches using optical telescopes and infrared sensors.

Kosmos 1684

Kosmos 1684 (Russian: Космос 1684 meaning Cosmos 1684) is a Soviet US-K missile early warning satellite which was launched in 1985 as part of the Soviet military's Oko programme. The satellite is designed to identify missile launches using optical telescopes and infrared sensors.