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.
STARLINK-5139 (55496)
COSPAR: 2023-015AZ | Alt Name: Starlink 5139
DECAYED
Image
Additional Sources
Launch Details
Launch Date
February 2, 2023
Launch Site
Launch Pad
LC39A
Launch Vehicle
Orbital Elements
NORAD ID
55496
International Designator
2023-015AZ
Decay Date
7/17/2023
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Basic Satellite Info
Name
STARLINK-5139
Alternative Name
Starlink 5139
Type
Payload
Status
Decayed
Owner
SPXS
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
The STARLINK-5139 satellite, also known as Starlink 5139, is a communication satellite belonging to SpaceX's Starlink constellation. Launched on February 2, 2023, from Launch Pad LC39A at AFETR using the Falcon 9 launch vehicle, this satellite measures 0.2 meters in length and has a diameter of 2.8 meters with a span of 9 meters when fully deployed. It weighs approximately 305 kilograms at launch, reducing to a dry mass of 290 kg. Equipped with a Ku/Ka-band payload and optical inter-satellite link, it uses krypton ion thrusters for propulsion and solar arrays with batteries for power generation. The satellite's shape is described as "Box + pan" and its primary mission is communication services.
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
290
Launch Mass
305
Shape
Box + pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Starlink Group 5-3-48
Purpose
Communication
Mission
Communication
Manufacturer
SPXS
Life Expectancy
Unknown
Bus
Starlink
Configuration
Unknown
Motor
Krypton ion thrusters
Equipment
Ku/Ka-band payload, optical inter-satellite link
Power System
Solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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