X Report 17 Sep 2025
Today’s highlights include successful Falcon 9 launch for MECANO ID, ongoing Starship Block 3 development, and plans for direct-to-device testing next year.
STARLINK-2123 (47401)
COSPAR: 2021-005BE | Alt Name: Starlink 2123
Image
Additional Sources
Launch Details
Launch Date
January 20, 2021
Launch Site
Launch Pad
LC39A
Launch Vehicle
Orbital Elements
NORAD ID
47401
International Designator
2021-005BE
Epoch
Sat, 04 Jul 2026 02:43:44 GMT
Apogee
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Perigee
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Inclination
53.16°
Right Ascension
215.29°
Eccentricity
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Argument of Perigee
98.55°
Period
94.01 min
Mean Motion
15.32 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
STARLINK-2123
Alternative Name
Starlink 2123
Type
Payload
Status
Operational
Owner
SPXS
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 47401U 21005BE 26185.11370803 .00002587 00000-0 95101-4 0 9991
2 47401 53.1588 215.2881 0001408 98.5499 261.5662 15.31699665301229
Source: Celestrak
Summary
The satellite STARLINK-2123, also known as Starlink 2123, is part of SpaceX's Starlink constellation and was launched on January 20, 2021, from LC39A at AFETR using a Falcon 9 launch vehicle. It has dimensions of 0.2 meters in length, a diameter of 2.8 meters, and a span of 9 meters. The satellite's dry mass is 248 kilograms with a total launch mass of 260 kilograms. It is equipped with a Ku/Ka-band payload and optical inter-satellite links on prototypes. Its propulsion system uses Krypton ion thrusters for maneuvering in space. Power is supplied by solar arrays and batteries. The satellite's purpose is communication, aligning with the broader Starlink mission to provide global internet coverage.
Starlink is a satellite constellation developed by SpaceX with the aim of providing global broadband internet coverage. Thousands of small satellites are deployed in low Earth orbit (LEO), enabling high-speed internet access even in remote areas. However, the rapid increase in satellites raises concerns about space debris and the potential for collisions, which can lead to further debris creation and endanger other spacecraft. Additionally, the sheer number of Starlink satellites can affect astronomical observations by increasing light pollution. Proper deorbiting plans and international coordination are essential to mitigate these challenges and ensure long-term sustainability in space.
Starlink is a satellite constellation developed by SpaceX with the aim of providing global broadband internet coverage. Thousands of small satellites are deployed in low Earth orbit (LEO), enabling high-speed internet access even in remote areas. However, the rapid increase in satellites raises concerns about space debris and the potential for collisions, which can lead to further debris creation and endanger other spacecraft. Additionally, the sheer number of Starlink satellites can affect astronomical observations by increasing light pollution. Proper deorbiting plans and international coordination are essential to mitigate these challenges and ensure long-term sustainability in space.
Physical Characteristics
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
Technical Details
Payload
Starlink V1.0-L16-53
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
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
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