Kosmos 19 (Russian: Космос 19 meaning Cosmos 19), also known as DS-P1 No.3 was a prototype radar target satellite for anti-ballistic missile tests, which was launched by the Soviet Union in 1963 as part of the Dnepropetrovsk Sputnik programme.

Its primary mission was to demonstrate the necessary technologies for radar tracking of spacecraft, which would allow future satellites to function as targets.

[1] Its primary mission was to demonstrate the necessary technologies for radar tracking of spacecraft, which would allow future satellites to function as targets.

[3] It was launched aboard a Kosmos-2I 63S1 rocket,[4] from Mayak-2 at Kapustin Yar.

[2] Kosmos 19 was placed into a low Earth orbit with a perigee of 267 kilometres (166 mi), an apogee of 487 kilometres (303 mi), an inclination of 49.0°, and an orbital period of 92.2 minutes.