X Report 18 Jun 2025
SpaceX successfully launched 28 Starlink satellites while preparing for the upcoming Ax-4 mission to the ISS. Significant progress continues in their ongoing space endeavors.
ASTRA 3B (36581)
COSPAR: 2010-021A | Alt Name: Astra 3B
Image
Additional Sources
Launch Details
Launch Date
May 21, 2010
Launch Site
FRGUI
Launch Pad
ELA3
Launch Vehicle
Ariane 5ECA
Orbital Elements
NORAD ID
36581
International Designator
2010-021A
Epoch
Sat, 04 Jul 2026 05:26:39 GMT
Apogee
Calculating...
Perigee
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Inclination
1.51°
Right Ascension
83.35°
Eccentricity
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Argument of Perigee
16.00°
Period
1436.09 min
Mean Motion
1.00 rev/day
Latitude
Calculating...
Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
ASTRA 3B
Alternative Name
Astra 3B
Type
Payload
Status
Operational
Owner
SESSL
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 36581U 10021A 26185.22685071 .00000148 00000-0 00000-0 0 9993
2 36581 1.5128 83.3485 0004236 16.0029 288.0309 1.00271957 59035
Source: Celestrak
Summary
ASTRA 3B is a communication satellite launched on May 21, 2010, from Guiana Space Centre using an Ariane 5ECA launch vehicle. Manufactured by EADSB, the satellite measures 4.5 meters in length and has a diameter of 2.8 meters with a span of 39.8 meters. It is equipped with 52 Ku-Band transponders and 4 Ka-Band transponders for direct broadcasting purposes. The satellite's dry mass is 3000 kg, and it had an initial launch mass of 5471 kg. Power comes from two deployable solar arrays and batteries. Its mission has a planned lifetime of 15 years.
Physical Characteristics
Length
4.5
Diameter
2.8
Span
39.8
Dry Mass
3000
Launch Mass
5471
Shape
Box + 2 Pan
Radar Cross Section
8.168
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Astra 3B
Purpose
Communication (Direct Broadcasting)
Mission
Communication (Direct Broadcasting)
Manufacturer
EADSB
Life Expectancy
15 years
Bus
Eurostar 3000M
Configuration
Eurostar-3000
Motor
R-4D-15
Equipment
52 transponders Ku-Band and 4 Ka-Band transponders
Power System
2 deployable solar arrays, 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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