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// navigation · 1978

GPS SVN 4

American GPS navigation satellite. GPS SVN 4 was launched on December 11, 1978 aboard a Atlas F/SVS from Vandenberg. Latest status in GCAT: in orbit.

COSPAR 1978-112ANORAD 11141United States

Identity

Name in GCAT
Navstar 4
Common name
GPS SVN 4
Payload designation
Navstar GPS SVN 4
Other names
OPS 5114:C
International designator
1978-112A
NORAD catalog number
11141
GCAT identifier
S11141
UN registration
ST/SG/SER.E/021

Mission

Mission type
Navigation
Use
Defense
Program
GPS I
Owner
SAMSO
Country
United States
Builder
Rockwell/Seal Beach
Platform (bus)
GPS

Launch

Date
December 11, 1978 · 03:59 UTC
Launch record
1978-112Success
Spaceport
Vandenberg · pad SLC3E

Orbit and fate

Orbit class (GCAT)
MEO
Perigee
20,163 km
Apogee
20,201 km
Inclination
63.28°
Status
In orbit
Last known active
Oct 14, 1989
End of operations
Oct 14, 1989

Size

Mass
409 kg
Dry mass
409 kg
Total mass with attached objects
775 kg
Length
2.4 m
Diameter
2.60 m
Span
5.3 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q7072863 (CC0).