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// communications · 1998

Skynet 4D

Decommissioned British military communications satellite. Skynet 4D was launched on January 10, 1998 aboard a Delta 7925-9.5 from Cape Canaveral & Kennedy. Latest status in GCAT: renamed (Oct 24, 2003).

COSPAR 1998-002ANORAD 25134United Kingdom

Identity

Name in GCAT
Skynet 4D
International designator
1998-002A
NORAD catalog number
25134
GCAT identifier
S25134
UN registration
ST/SG/SER.E/378

Mission

Mission type
Communications
Use
Defense
Program
Skynet
Owner
UK MoD
Country
United Kingdom
Builder
Matra Marconi Space (Stevenage)
Platform (bus)
ECS

Launch

Date
January 10, 1998 · 00:32 UTC
Launch record
1998-002Success
Spaceport
Cape Canaveral & Kennedy · pad LC17B

Orbit and fate

Orbit class (GCAT)
GEO/ID
Perigee
35,672 km
Apogee
35,813 km
Inclination
4.15°
Status
Renamed
Status date
October 24, 2003
Last known active
January 2008
End of operations
Jan 24, 2008

Size

Mass
823 kg
Dry mass
720 kg
Total mass with attached objects
1,490 kg
Length
2.1 m
Diameter
1.90 m
Span
16.0 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q16943244 (CC0).