Launch Date
December 20, 1971
Launch Site
Launch Pad
LC36A
Launch Vehicle
Atlas SLV-3C Centaur
NORAD ID
05709
International Designator
1971-116A
Epoch
Sun, 19 Jul 2026 20:16:34 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
6.32°
Right Ascension
290.57°
Eccentricity
Calculating...
Argument of Perigee
125.93°
Period
1445.53 min
Mean Motion
1.00 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
INTELSAT 4-F3
Alternative Name
INTELSAT IV F3
Type
Status
Owner
INTEL
Country
INTELSAT
Constellation
N/A
Related Satellites
Major Events
N/A
1 05709U 71116A 26200.84484852 .00000123 00000+0 00000+0 0 9994
2 05709 6.3188 290.5715 0010789 125.9314 239.4236 00.99617431119200
Source: Celestrak
Apologies, there is no summary for this satellite yet. I am working to generate these for every object in the catalog, but it is going to take time.
Length
5.3
Diameter
2.4
Span
5.3
Dry Mass
531
Launch Mass
666
Shape
Cyl + 2 Dish
Radar Cross Section
2.3549
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
INTELSAT IV F3
Purpose
Communication
Mission
Communication
Manufacturer
HSES
Life Expectancy
Unknown
Bus
HS-312
Configuration
HS-312
Motor
SVM-4A
Equipment
12 C-band transponders
Power System
Solar cells (body mounted), batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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