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STARLINK-3121 (49428)
COSPAR: 2021-104W | Alt Name: Starlink 3121
Image
Additional Sources
Launch Details
Launch Date
November 13, 2021
Launch Site
Launch Pad
LC40
Launch Vehicle
Orbital Elements
NORAD ID
49428
International Designator
2021-104W
Epoch
Sat, 04 Jul 2026 08:00:03 GMT
Apogee
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Perigee
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Inclination
53.16°
Right Ascension
65.15°
Eccentricity
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Argument of Perigee
74.26°
Period
95.21 min
Mean Motion
15.12 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
STARLINK-3121
Alternative Name
Starlink 3121
Type
Payload
Status
Operational
Owner
SPXS
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 49428U 21104W 26185.33336806 .00017811 00000-0 10263-2 0 9991
2 49428 53.1603 65.1458 0001967 74.2609 128.1216 15.12480567 4854
Source: Celestrak
Summary
STARLINK-3121, also known as Starlink 3121, is a communication satellite belonging to SpaceX's Starlink constellation. It was launched on November 13, 2021, from the Cape Canaveral Space Force Station using a Falcon 9 launch vehicle. The spacecraft measures 2.8 meters in diameter and spans 9 meters with its solar arrays extended. At launch, it had a mass of 290 kilograms and carries a dry mass of 270 kilograms. It is equipped with Ku/Ka-band payload for communication and optical inter-satellite link technology. The satellite uses krypton ion thrusters for propulsion and relies on solar arrays and batteries for power. Its mission is to provide internet communication services as part of the Starlink Group 4-1-21 constellation.
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
270
Launch Mass
290
Shape
Box + pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Starlink Group 4-1-21
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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