X Report 1 Oct 2025
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STARLINK-1255 (45399)
COSPAR: 2020-019AR | Alt Name: Starlink 1255
Image
Additional Sources
Launch Details
Launch Date
March 18, 2020
Launch Site
Launch Pad
LC39A
Launch Vehicle
Orbital Elements
NORAD ID
45399
International Designator
2020-019AR
Epoch
Fri, 03 Jul 2026 17:57:47 GMT
Apogee
Calculating...
Perigee
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Inclination
53.03°
Right Ascension
256.21°
Eccentricity
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Argument of Perigee
268.56°
Period
91.82 min
Mean Motion
15.68 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-1255
Alternative Name
Starlink 1255
Type
Payload
Status
Partially operational
Owner
SPXS
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 45399U 20019AR 26184.74846211 .00052235 00000-0 46000-3 0 9996
2 45399 53.0317 256.2074 0000768 268.5563 91.5364 15.68249853348568
Source: Celestrak
Summary
The STARLINK-1255 satellite, also known as Starlink 1255, is owned and operated by SPXS (SpaceX) for communication purposes. Launched on March 18, 2020, from LC39A at AFETR using a Falcon 9 launch vehicle, the spacecraft has dimensions of 0.2 meters in length, 2.8 meters in diameter, and spans 9 meters. It weighs 248 kilograms dry and had an initial launch mass of 260 kilograms. The satellite is equipped with Ku/Ka-band payload technology (all) and optical inter-satellite links for a few prototypes. Its propulsion system uses Krypton ion thrusters, and it relies on solar arrays and batteries for power supply. The shape of the satellite is described as box + pan.
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-L5-03
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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