Space Brief 29 Jul 2025
Today's brief covers developments in space traffic management, the X-37B spaceplane's upcoming mission, and satellite interference with radio telescopes.
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
Mon, 20 Jul 2026 17:55:50 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
7.80°
Right Ascension
304.08°
Eccentricity
Calculating...
Argument of Perigee
256.17°
Period
1441.08 min
Mean Motion
1.00 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
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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 26201.74710704 -.00000238 00000+0 00000+0 0 9999
2 08330 7.7994 304.0774 0004984 256.1719 297.8702 00.99925053121802
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
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