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HGS-4 (GALAXY 4) (22694)
COSPAR: 1993-039A | Alt Name: Galaxy 4H
Image
Additional Sources
Launch Details
Launch Date
June 25, 1993
Launch Site
FRGUI
Launch Pad
ELA2
Launch Vehicle
Ariane 42P
Orbital Elements
NORAD ID
22694
International Designator
1993-039A
Epoch
Fri, 03 Jul 2026 23:37:38 GMT
Apogee
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Perigee
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Inclination
14.57°
Right Ascension
355.01°
Eccentricity
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Argument of Perigee
48.82°
Period
1436.18 min
Mean Motion
1.00 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
HGS-4 (GALAXY 4)
Alternative Name
Galaxy 4H
Type
Payload
Status
Unknown
Owner
HCG
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 22694U 93039A 26184.98447626 -.00000086 00000-0 00000-0 0 9999
2 22694 14.5661 355.0090 0015145 48.8225 305.8457 1.00266057119162
Source: Celestrak
Summary
HGS-4 (GALAXY 4), also known as Galaxy 4H, is a US communication satellite built by HSES and owned by HCG. Launched on June 25, 1993, from ELA2 in FRGUI using an Ariane 42P launch vehicle, it has a configuration of HS-601 and carries 24 (+6) C-band transponders and 24 (+6) Ku-band transponders. The satellite measures 4 meters in length with a diameter of 3 meters and a span of 26.5 meters, featuring two deployable solar arrays and batteries for power supply. Its dry mass is 1323 kg, while its launch mass was 2988 kg. HGS-4 has a design lifetime of 12 years and uses R-4D-11 motors with a shape described as Box + 2 Pan, having an RCS (Reaction Control System) value of 4.6912.
Physical Characteristics
Length
4
Diameter
3
Span
26.5
Dry Mass
1323
Launch Mass
2988
Shape
Box + 2 Pan
Radar Cross Section
4.6912
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Galaxy IVH
Purpose
Communication
Mission
Communication
Manufacturer
HSES
Life Expectancy
12 years
Bus
HS-601
Configuration
HS-601
Motor
R-4D-11
Equipment
24 (+6) C-band transponders, 24 (+6) Ku-band transponders
Power System
2 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
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