Launch Date
February 26, 1982
Launch Site
Launch Pad
LC17A
Launch Vehicle
Delta 3910/PAM
NORAD ID
13069
International Designator
1982-014A
Epoch
Sat, 04 Jul 2026 00:23:38 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
12.62°
Right Ascension
334.85°
Eccentricity
Calculating...
Argument of Perigee
293.46°
Period
1443.31 min
Mean Motion
1.00 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
WESTAR 4
Alternative Name
Westar 4
Type
Status
Owner
WUTC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 13069U 82014A 26185.01641771 -.00000308 00000-0 00000-0 0 9995
2 13069 12.6198 334.8520 0003137 293.4648 133.4833 0.99770434 46618
Source: Celestrak
Length
6.8
Diameter
2.2
Span
6.8
Dry Mass
452
Launch Mass
552
Shape
Cyl
Radar Cross Section
3.2118
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Westar 4
Purpose
Communication
Mission
Communication
Manufacturer
HSES
Life Expectancy
Unknown
Bus
HS-376
Configuration
HS-376
Motor
TE-M-700-5
Equipment
24 C-band transponders
Power System
Solar cells (body mounted and drop-skirt), batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Learn more about satellites and other related topics.
ULA launches the final Atlas 5 551 configuration—its heaviest variant with 5 solid boosters—carrying Amazon's Project Kuiper satellite to low Earth orbit from Cape Canaveral.
Space Force shares classified tracking data with commercial firms. Falcon 9 reentry linked to upper-atmosphere lithium plume. SpaceX launches 54 Starlink sats in one day.
Explore a comprehensive breakdown of satellite counts by country, detailing the USA, Russia, China, and others.
NASA delays first 2026 spacewalk due to ISS crew medical issue. Sierra Space completes SDA Tranche 2 satellite structures ahead of schedule. Space Force advances Handle 2.0 standardization.
SpaceX prepares for its 10th Starship test flight, set for August 24, as the FAA grants approval following earlier setbacks.
An in-depth look at CelesTrak, the leading non-profit provider of orbital element sets and collision assessment tools, trusted by space professionals worldwide.
Artemis 2 splashdown marks first crewed lunar flyby since Apollo 17 in 1972. Four astronauts completed historic mission, validating systems for Artemis 3 landing attempt.
Trump seeks Musk's help to restore internet in Iran via Starlink. China files for 200,000-satellite constellation. Sweden allocates $1.6B for air defense and $140M for space capabilities.
