Kosmos 615 (Russian: Космос 615 meaning Cosmos 615), also known as DS-P1-I No.
13, was a satellite which was used as a radar target for anti-ballistic missile tests.
It was launched by the Soviet Union in 1973 as part of the Dnepropetrovsk Sputnik programme.
[3] Kosmos 615 was placed into a low Earth orbit with a perigee of 270 kilometres (170 mi), an apogee of 834 kilometres (518 mi), 71 degrees of inclination, and an orbital period of 95.7 minutes.
[4] Kosmos 615 was the thirteenth of nineteen DS-P1-I satellites to be launched.