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// communications · 1984

USA-4

American reconnaissance satellite. USA-4 was launched on August 28, 1984 aboard a Titan 34B from Vandenberg. Latest status in GCAT: in orbit.

COSPAR 1984-091ANORAD 15226United States

Identity

Name in GCAT
USA 4
Common name
USA-4
Payload designation
QUASAR 5
Other names
:U,SDS X-1?:P
International designator
1984-091A
NORAD catalog number
15226
GCAT identifier
S15226
UN registration
ST/SG/SER.E/113

Mission

Mission type
Communications
Use
Defense
Program
SDS
Owner
NRO
Country
United States
Builder
Hughes Space and Comms. Co (Hughes Satellite Systems)
Platform (bus)
SDS

Launch

Date
August 28, 1984 · 18:03 UTC
Launch record
1984-091Success
Rocket
Titan 34B
Spaceport
Vandenberg · pad SLC4W

Orbit and fate

Orbit class (GCAT)
HEO/M
Perigee
379 km
Apogee
39,315 km
Inclination
63.30°
Status
In orbit
Last known active
1985
End of operations
1994

Size

Mass
800 kg
Dry mass
650 kg
Length
7.0 m
Diameter
2.40 m
Span
7.0 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q136994926 (CC0).