X Report 26 Nov 2025
This edition highlights SpaceX's ambitious plans for Starship in light of recent developments, a busy launch week featuring multiple missions, and the latest updates on Starlink's operational status.
STARLINK-5739 (55571)
COSPAR: 2023-020C | Alt Name: Starlink 5739
Image
Additional Sources
Launch Details
Launch Date
February 12, 2023
Launch Site
Launch Pad
LC40
Launch Vehicle
Orbital Elements
NORAD ID
55571
International Designator
2023-020C
Epoch
Sun, 19 Jul 2026 18:35:55 GMT
Apogee
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Perigee
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Inclination
43.00°
Right Ascension
342.66°
Eccentricity
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Argument of Perigee
271.73°
Period
94.27 min
Mean Motion
15.28 rev/day
Latitude
Calculating...
Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
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Basic Satellite Info
Name
STARLINK-5739
Alternative Name
Starlink 5739
Type
Payload
Status
Operational
Owner
SPXS
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 55571U 23020C 26200.77494227 -.00000101 00000+0 58588-5 0 9993
2 55571 43.0040 342.6572 0001074 271.7348 88.3380 15.27574788189078
Source: Celestrak
Summary
The STARLINK-5739 satellite, also known as Starlink 5739, is a communication satellite belonging to the Starlink constellation launched on February 12, 2023, from Cape Canaveral Air Force Station's LC40 launch pad using a Falcon 9 launch vehicle. With dimensions of 0.2 meters in length and 2.8 meters in diameter, it has a span of 9 meters. The satellite weighs 290 kilograms dry and had a launch mass of 305 kilograms. Equipped with Ku/Ka-band payload capabilities and an optical inter-satellite link, STARLINK-5739 uses Krypton ion thrusters for propulsion and is powered by solar arrays and batteries. It was manufactured by SpaceX (SPXS) and owned by the same entity, with its primary mission being 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 5-4-03
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
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
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