1945-1991: Cold War world Wiki
Sputnik 2.
Category. Statistic.
Launch vehicle. Sputnik 8K71PS rocket 
Launch date. November 3, 1957, 02:30:00 UTC.
Launch site. Baikonur 1/5.
Ceased operations. November 7, 1957.
Owner(s). OKB-1.
Major contractor(s)  OKB-1.
Is it still in orbit. April 14, 1958.
Launch mass 508.3 kilograms (1,121 lb) (Payload, including the dog, only).
Nationality(s). Soviet.
Satellite type. Earth science and bioscience on Laika the dog.
Links. http://en.wikipedia.org/wiki/Sputnik_2.

The image is a model on display at the Polytechnical Museum in Russia. Image courtesy of Alexander Chernov and the Virtual Space Museum.