Key statistics
Satellite SKYNET 4B at a glance.
Uptime
13358
Days in orbit
Revolutions
≈ 1.0
Per day
Orbit
OTHER
Other
Inclination
13.4
Latest
Satellite identification and parameters
Extended collection of information and parameters for SKYNET 4B.
Object identification
Identified? True
Debris? False
Object name: SKYNET 4B
International designator: 1988-109A
Object number (NORAD): 19687
Object ID (CCSDS): 19687
Country: UNITED KINGDOM (UK)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 1444.729 minutes
Inclination: 13.4273 deg
SMA: 42333.525 km
Apoapsis: 35968.162 km
Periapsis: 35942.618 km
RAAN: 339.3689 deg
Eccentricy: 0.0003017
Argument of periapsis: 257.9092 deg
Mean anomaly: 111.0743 deg
Mean motion: 0.99672674 rev/day
Mean motion (dot): 0.00000076 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: July 8, 2025, 2:27 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 7, 2025, 2:29 p.m. UTC
TLE line 0: 0 SKYNET 4B
TLE line 1: 1 19687U 88109A 25188.60416027 .00000076 00000-0 00000-0 0 9990
TLE line 2: 2 19687 13.4273 339.3689 0003017 257.9092 111.0743 0.99672674114732
Live tracking on map
Real-time ground track for satellite SKYNET 4B.
In-orbit conjunctions
There are no conjunctions computed for SKYNET 4B, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Geostationary communications satellite
SKYNET 4B was lifted into orbit during the mission ‘Ariane 44LP | Skynet 4B & Astra 1A’, on board a Ariane 44LP space rocket.
The launch took place on Dec. 11, 1988, 12:33 a.m. from Ariane Launch Area 2.
For more information about the launch, click the button.
Ariane 44LP | Skynet 4B & Astra 1A
Agency: N/A
Status: Launch Successful
Launch date: Dec. 11, 1988, 12:33 a.m. UTC
Rocket: Ariane 44LP
Launch pad: Ariane Launch Area 2
Location: Guiana Space Centre, French Guiana
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
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