X Report 1 Dec 2025
SpaceX celebrates significant milestones with the launch of Falcon 9 and developments in the Starship program, while Elon Musk addresses media narratives surrounding Starlink's humanitarian efforts.
INTELSAT 4A-F1 (08330)
COSPAR: 1975-091A | Alt Name: INTELSAT IVA F1
Image
Additional Sources
Launch Details
Launch Date
September 26, 1975
Launch Site
Launch Pad
LC36B
Launch Vehicle
Atlas SLV-3D Centaur
Orbital Elements
NORAD ID
08330
International Designator
1975-091A
Epoch
Sat, 04 Jul 2026 05:06:04 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
7.83°
Right Ascension
304.19°
Eccentricity
Calculating...
Argument of Perigee
256.09°
Period
1440.99 min
Mean Motion
1.00 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
INTELSAT 4A-F1
Alternative Name
INTELSAT IVA F1
Type
Payload
Status
Non-operational
Owner
INTEL
Country
INTELSAT
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 08330U 75091A 26185.21255063 -.00000272 00000-0 00000-0 0 9994
2 08330 7.8334 304.1940 0004604 256.0887 109.5631 0.99931397121641
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
7
Diameter
2.4
Span
7
Dry Mass
610
Launch Mass
736
Shape
Cyl + 2 Dish
Radar Cross Section
2.965
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
INTELSAT IVA F1
Purpose
Communication
Mission
Communication
Manufacturer
HSES
Life Expectancy
7 years
Bus
HS-353
Configuration
HS-353
Motor
SVM-4A
Equipment
20 C-band 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.
X Report 16 Aug 2025
SpaceX receives FAA approval for its 10th Starship test flight scheduled for August 24, while also making strides in construction at the Cape and contesting broadband funding in Virginia.
SpaceX Starfall Secret Capsule Targets Space Manufacturing | KeepTrack X Report
SpaceX's disk-shaped Starfall reentry vehicle debuts as the constellation hits 10,671 working satellites across low Earth orbit.
The Day a Car Started Its Journey to the Stars
Seven years ago, SpaceX revolutionized spaceflight by launching the most powerful operational rocket in the world, carrying with it a cherry-red Tesla Roadster that captured global imagination
The Satellite That Found 22 Photons and Changed Astronomy
On April 27, 1961, a Scout rocket lifted a 37-kilogram NASA satellite into orbit from Wallops Island carrying the first serious instrument for detecting cosmic gamma rays. Explorer 11 operated for seven months before its tape recorder failed. In that time it registered 22 gamma-ray photons - a pitiful number by modern standards, but enough to launch an entire branch of astronomy.
X Report 26 Sep 2025
SpaceX has been active, with successful launches of Starlink satellites and major developments at Cape Canaveral, signaling a competitive edge in satellite communication and launch capabilities.
Space Brief 19 Nov 2025
Today's Space Brief covers the latest developments in space debris detection, Ursa Major's defense push, and SpaceX's Starlink launch. Additionally, insights into microreactors for military bases, US Cyber Command updates, and gravitational wave discoveries are highlighted.
Earthquake Sensors Repurposed to Track Space Debris Reentry | KeepTrack Space Brief
Scientists use earthquake sensors to track space debris reentry via sonic boom detection. SpaceX launches 25 Starlink satellites in seventh mission of 2026. NASA and DOE partner for lunar nuclear power.