Space Brief 24 Sep 2025
Key highlights on China's reusable rocket developments, U.S. military's Tranche 1 satellite launch, Space Force's weapons acquisition strategies, and more.
Launch Date
May 15, 2021
Launch Site
Launch Pad
LC39A
Launch Vehicle
NORAD ID
48557
International Designator
2021-041E
Epoch
Sat, 04 Jul 2026 01:28:12 GMT
Apogee
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Perigee
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Inclination
53.16°
Right Ascension
305.43°
Eccentricity
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Argument of Perigee
80.56°
Period
94.01 min
Mean Motion
15.32 rev/day
Latitude
Calculating...
Longitude
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Altitude
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Velocity
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Name
STARLINK-2155
Alternative Name
Starlink 2155
Type
Status
Owner
SPXS
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 48557U 21041E 26185.06125114 -.00000394 00000-0 -95197-6 0 9994
2 48557 53.1621 305.4271 0000898 80.5594 279.5509 15.31702841283100
Source: Celestrak
Length
0.2
Diameter
2.8
Span
9
Dry Mass
248
Launch Mass
260
Shape
Box + pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Starlink V1.0-L26-05
Purpose
Communication
Mission
Communication
Manufacturer
SPXS
Life Expectancy
Unknown
Bus
Starlink
Configuration
Unknown
Motor
Krypton ion thrusters
Equipment
Ku/Ka-band payload (all), optical inter-satellite links (a few prototypes)
Power System
Solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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