Kosmos 11 (Russian: Космос 11 meaning Cosmos 11), also known as DS-A1 No.1 was a technology demonstration satellite which was launched by the Soviet Union in 1962.

Its primary mission was to demonstrate technologies for future Soviet military satellites.

[3] The DS-A1 satellites were developed by Yuzhnoye to test the techniques and equipment for communication and navigation systems and performed radiation measurements.

[4] The launch was conducted from Mayak-2 at Kapustin Yar on 20 October 1962 at 03:50:00 GMT.

[5] Kosmos 11 was placed into a low Earth orbit with a perigee of 234 kilometres (145 mi), an apogee of 901 kilometres (560 mi), an inclination of 49.0°, and an orbital period of 96.1 minutes.