STARLINK-5558 (55631)

COSPAR: 2023-021D | Alt Name: Starlink 5558

Image

Additional Sources

Launch Details

Launch Date

February 17, 2023

Launch Site

AFWTR

Launch Pad

SLC4E

Launch Vehicle

Falcon 9

Orbital Elements

NORAD ID

55631

International Designator

2023-021D

Epoch

Sun, 19 Jul 2026 11:52:48 GMT

Apogee

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Perigee

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Inclination

70.00°

Right Ascension

232.03°

Eccentricity

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Argument of Perigee

271.30°

Period

96.11 min

Mean Motion

14.98 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

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Starlink bus SpaceX Starlink constellation United States satellites Payloads

Basic Satellite Info

Name

STARLINK-5558

Alternative Name

Starlink 5558

Type

Payload

Status

Operational

Owner

SPXS

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 55631U 23021D   26200.49500207  .00000597  00000+0  57852-4 0  9996

2 55631  69.9988 232.0343 0003661 271.2959  88.7780 14.98332079188044

Source: Celestrak

Summary

STARLINK-5558, also known as Starlink 5558, is a communication satellite launched by SpaceX on February 17, 2023, from the Space Launch Complex 4E at Vandenberg Air Force Base using a Falcon 9 launch vehicle. The satellite has dimensions of 0.2 meters in length and 2.8 meters in diameter, with a span of 9 meters. It has a dry mass of 290 kg and was launched with a total mass of 305 kg. Equipped with Ku/Ka-band payload and optical inter-satellite link technology, the satellite is powered by solar arrays and batteries. Its propulsion system includes krypton ion thrusters. The satellite's shape is described as box-like with a pan configuration. It belongs to the Starlink Group 2-5-04 payload and is owned by SpaceX, serving communication purposes in its mission orbit.

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

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 2-5-04

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

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