STARLINK-2143 (47733)

COSPAR: 2021-017M | Alt Name: Starlink 2143

Image
STARLINK-2143 Satellite Image
Additional Sources
Launch Details

Launch Date

March 4, 2021

Launch Pad

LC39A

Launch Vehicle

Falcon 9

Orbital Elements

NORAD ID

47733

International Designator

2021-017M

Epoch

Fri, 03 Jul 2026 23:52:31 GMT

Apogee

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Perigee

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Inclination

53.16°

Right Ascension

35.57°

Eccentricity

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Argument of Perigee

76.56°

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-2143

Alternative Name

Starlink 2143

Type

Payload

Status

Operational

Owner

SPXS

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 47733U 21017M   26184.99481149  .00002282  00000-0  85236-4 0  9993
2 47733  53.1598  35.5691 0000732  76.5629 283.5454 15.31708719295530

Source: Celestrak

Summary
STARLINK-2143, also known as Starlink 2143, is a communication satellite operated by SpaceX (SPXS). It was launched on March 4, 2021, from the Kennedy Space Center Launch Complex 39A using a Falcon 9 launch vehicle. The satellite measures 0.2 meters in length and 2.8 meters in diameter with a span of 9 meters. Its dry mass is 248 kilograms, and it has a launch mass of 260 kilograms. Equipped with Ku/Ka-band payload (all) and optical inter-satellite links (a few prototypes), STARLINK-2143 utilizes solar arrays and batteries for power. It employs krypton ion thrusters as its motor and is designed in the shape of a box with panels. The satellite's primary mission is communication, serving as part of SpaceX’s broader Starlink constellation aiming to provide global internet coverage.

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-L17-12

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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