STARLINK-2155 (48557)

COSPAR: 2021-041E | Alt Name: Starlink 2155

Image
STARLINK-2155 Satellite Image
Additional Sources
Launch Details

Launch Date

May 15, 2021

Launch Pad

LC39A

Launch Vehicle

Falcon 9

Orbital Elements

NORAD ID

48557

International Designator

2021-041E

Epoch

Sat, 04 Jul 2026 01:28:12 GMT

Apogee

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Perigee

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Inclination

53.16°

Right Ascension

305.43°

Eccentricity

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Argument of Perigee

80.56°

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-2155

Alternative Name

Starlink 2155

Type

Payload

Status

Operational

Owner

SPXS

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 48557U 21041E   26185.06125114 -.00000394  00000-0 -95197-6 0  9994
2 48557  53.1621 305.4271 0000898  80.5594 279.5509 15.31702841283100

Source: Celestrak

Summary
The satellite STARLINK-2155, also known as Starlink 2155, is a communication satellite belonging to SpaceX's Starlink constellation. It was launched on May 15, 2021, from Launch Complex 39A at Kennedy Space Center using a Falcon 9 launch vehicle. The spacecraft measures approximately 0.2 meters in length and has a diameter of 2.8 meters with a span of 9 meters, indicating the presence of deployable solar arrays or antennas. At launch, it had a mass of 260 kilograms, which includes its dry mass of 248 kilograms. The satellite is equipped with a Ku/Ka-band payload and features optical inter-satellite links in prototype form. Its propulsion system consists of krypton ion thrusters, while power generation relies on solar arrays complemented by batteries. The purpose of this satellite is to provide communication services as part of the Starlink network.

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-L26-05

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

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