Starlink 10-50 Launches With Semiconductor Payload Aboard | KeepTrack X Report
A Falcon 9 lifted off from SLC-40 at 6:50 a.m. EDT carrying Starlink satellites and Besxar Space Industries semiconductor test pods.
INTELSAT 3-F4 (03947)
COSPAR: 1969-045A | Alt Name: INTELSAT III F-4
Image
Additional Sources
Launch Details
Launch Date
May 22, 1969
Launch Site
Launch Pad
LC17A
Launch Vehicle
Thor Delta M
Orbital Elements
NORAD ID
03947
International Designator
1969-045A
Epoch
Fri, 03 Jul 2026 22:00:33 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
3.70°
Right Ascension
288.59°
Eccentricity
Calculating...
Argument of Perigee
79.88°
Period
1599.21 min
Mean Motion
0.90 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
INTELSAT 3-F4
Alternative Name
INTELSAT III F-4
Type
Payload
Status
Non-operational
Owner
INTEL
Country
INTELSAT
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 03947U 69045A 26184.91705803 -.00000076 00000-0 00000-0 0 9995
2 03947 3.6979 288.5932 0023344 79.8766 143.0777 0.90044576 66113
Source: Celestrak
Summary
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.
Physical Characteristics
Length
1.5
Diameter
1.5
Span
1.5
Dry Mass
113
Launch Mass
135
Shape
Cyl
Radar Cross Section
2.5125
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
INTELSAT III F-4
Purpose
Communication
Mission
Communication
Manufacturer
TRW
Life Expectancy
5 years
Bus
INTELSAT 3
Configuration
Unknown
Motor
SVM-2
Equipment
2 transponders
Power System
Solar cells (body mounted), batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
Space Brief 3 Dec 2025
Today's brief covers the integration of commercial and military space capabilities, a notable change in Crew 12 mission, advancements in digital training for space operations, and more.
X Report 27 May 2025
Today marks a significant day for SpaceX as the company prepares for the 9th test flight of its Starship-Super Heavy rocket, alongside a successful launch of 24 Starlink satellites to polar orbit.
X Report 9 Jan 2025
Exciting advancements from SpaceX as Starshield satellites prepare for launch, Starship Flight 7 faces a short delay, and new Starlink satellites enter orbit.
Pentagon Seeks Commercially Built GEO Spy Satellites | KeepTrack Space Brief
Pentagon's DIU seeks commercial partners for GEO spy satellites. SpaceX unveils space traffic management system. Bahamas rocket landings resume. GPS III falls short in modern warfare.
NRO Adds 3 New Partners to Commercial Imaging Program | KeepTrack Space Brief
NRO expands commercial imaging with HEO, SatVu, and Sierra Nevada. ChatGPT rolls out to 3 million military users via GenAI.mil. C-130J deliveries paused.
Space Force Awards Orbital AMTI to 9 Companies | KeepTrack Space Brief
Space Force confirmed 9 companies won orbital Air Moving Target Indication contracts. Capability shifts airborne surveillance to satellites for expanded coverage and survivability.
X Report 5 Sep 2025
SpaceX celebrates significant milestones with its Starship preparations, approaches a landmark Falcon booster landing, and enhances the ISS orbit with Dragon technology.