Soviet Space ProgramSputnik 8K74PS1/5, Baikonur Cosmodrome, Republic of Kazakhstan
Sputnik 8K74PS | Sputnik 1
Launch window
No countdown — this launch time is not yet known to the minute.October 4, 1957Add to calendar
Launch Successful
Soviet Space Program's 1st launch · 1st this year · humanity's 1st orbital launch attempt
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
Window: Oct 4, 19:28 – Oct 4, 19:28 UTC
Flight preview
Sputnik 1
First artificial satellite consisting of a 58 cm pressurized aluminium shell containing two 1 W transmitters for a total mass of 83.6 kg.
Test Flight · Low Earth Orbit (LEO)
Booster
No booster details available.

