Unnamed Vostok 1K biosatellite (Korabl-Sputnik 2 attempt) carrying dogs Chaika and Lisichka, launched on a Vostok 8K72 from Baikonur on 28 July 1960 as a crewed-flight precursor. The booster exploded shortly after liftoff, killing both dogs; the flight received no public designation.
- Outcome
- Failure
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 2nd
- of 4 Vostok 8K72 flights
- Date and time
- 28 July 1960, 09:31 UTC
- Rocket
- Vostok 8K72
- Builder
- RKK Energia
- Launch site
- 1/5, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Test Flight
- Launches in 1960
- 16th of 38