X Report 29 Sep 2025
In today's update, SpaceX successfully launched 28 Starlink satellites from Vandenberg, while Italy grapples with its satellite strategy amid rising reliance on Starlink services.
BRASILSAT B4 (26469)
COSPAR: 2000-046A | Alt Name: Brasilsat B4
Image
Additional Sources
Launch Details
Launch Date
August 17, 2000
Launch Site
FRGUI
Launch Pad
ELA2
Launch Vehicle
Ariane 44LP
Orbital Elements
NORAD ID
26469
International Designator
2000-046A
Epoch
Sat, 04 Jul 2026 00:46:45 GMT
Apogee
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Perigee
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Inclination
9.30°
Right Ascension
58.77°
Eccentricity
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Argument of Perigee
214.51°
Period
1452.10 min
Mean Motion
0.99 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
BRASILSAT B4
Alternative Name
Brasilsat B4
Type
Payload
Status
Non-operational
Owner
EMBRM
Country
Brazil
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 26469U 00046A 26185.03246576 -.00000234 00000-0 00000-0 0 9992
2 26469 9.3019 58.7704 0003551 214.5141 142.1541 0.99166470 94928
Source: Celestrak
Summary
BRASILSAT B4, also known as Brasilsat B4, is a communication satellite operated by EMBRM and manufactured by HSES. It was launched on August 17, 2000, from the ELA2 launch pad at the Guiana Space Centre using an Ariane 44LP rocket. The spacecraft has dimensions of 8.3 meters in length and diameter, with a dry mass of 820 kg and a launch mass of 1750 kg. Equipped with solar cells and batteries for power, BRASILSAT B4 carries 28 active C-band transponders along with one X-band transponder. Its mission is to provide communication services, and it has an operational lifetime of 12 years.
Physical Characteristics
Length
8.3
Diameter
3.4
Span
8.3
Dry Mass
820
Launch Mass
1750
Shape
Cyl + Dish
Radar Cross Section
7.6628
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Brasilsat B4
Purpose
Communication
Mission
Communication
Manufacturer
HSES
Life Expectancy
12 years
Bus
HS-376W
Configuration
HS-376W
Motor
R-4D-11-300
Equipment
28 active C-band transponders (all), 1 X-band transponder (#B1, 2 only)
Power System
Solar cells (body mounted and drop-skirt), 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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