Sputnik 1

First artificial Earth satellite. Sputnik 1 was launched on October 4, 1957 aboard a Sputnik 8K71PS from Baikonur. Latest status in GCAT: reentered (orbital decay) (Jan 4, 1958).

COSPAR 1957 ALP 2NORAD 2Soviet Union

Identity

Name in GCAT: 1-y ISZ
Common name: Sputnik 1
Payload designation: PS-1
Other names: :RE,:RC
International designator: 1957 ALP 2
NORAD catalog number: 2
GCAT identifier: S00002
UN registration: A/AC.105/INF.002

Mission

Mission type: Technology
Use: Civil government
Program: Sputnik
Owner: OKB-1
Country: Soviet Union
Builder: OKB-1 im. S.P. Korolev
Platform (bus): PS

Launch

Date: October 4, 1957 · 19:28 UTC
Launch record: 1957 ALPSuccess
Rocket: Sputnik 8K71PS
Spaceport: Baikonur · pad LC1

Orbit and fate

Orbit class (GCAT): LLEO/I
Perigee: 214 km
Apogee: 938 km
Inclination: 65.10°
Status: Reentered (orbital decay)
Status date: January 4, 1958
Last known active: Oct 27, 1957
End of operations: Oct 27, 1957

Size

Mass: 84 kg
Dry mass: 84 kg
Length: 0.6 m
Diameter: 0.60 m
Span: 2.9 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q80811 (CC0).