STARLINK-4377 (53221)

COSPAR: 2022-084AJ | Alt Name: Starlink 4377

Image
STARLINK-4377 Satellite Image
Additional Sources
Launch Details

Launch Date

July 22, 2022

Launch Site

AFWTR

Launch Pad

SLC4E

Launch Vehicle

Falcon 9

Orbital Elements

NORAD ID

53221

International Designator

2022-084AJ

Epoch

Sun, 19 Jul 2026 19:27:36 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

97.28°

Right Ascension

258.11°

Eccentricity

Calculating...

Argument of Perigee

104.36°

Period

95.64 min

Mean Motion

15.06 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

STARLINK-4377

Alternative Name

Starlink 4377

Type

Payload

Status

Operational

Owner

SPXS

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 53221U 22084AJ  26200.81084058 -.00000204  00000+0 -10228-4 0  9997
2 53221  97.2838 258.1096 0001337 104.3590 255.7786 15.05652841219198

Source: Celestrak

Summary
The STARLINK-4377 satellite, also known as Starlink 4377, is part of SpaceX's Starlink constellation and was launched on July 22, 2022, from Space Launch Complex 4E at Vandenberg Space Force Base using a Falcon 9 launch vehicle. It has dimensions of 0.2 meters in length, 2.8 meters in diameter, and a span of 9 meters. The satellite weighs 275 kilograms dry and had a launch mass of 297 kilograms. Equipped with a Ku/Ka-band payload and an optical inter-satellite link, it uses solar arrays and batteries for power and krypton ion thrusters for propulsion. Its mission is to provide communication services as part of the Starlink Group 3-2-33 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.
Physical Characteristics

Length

0.2

Diameter

2.8

Span

9

Dry Mass

275

Launch Mass

297

Shape

Box + pan

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Starlink Group 3-2-33

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
This tool will help you track the satellite's position and predict its upcoming passes over your location. Simply input the coordinates or click the geolocation button to get started.
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

Ku-Band

Ku-Band

The frequency band that brought satellite TV to small dishes on rooftops and revolutionized direct-to-home broadcasting

Falcon 9 B1067 Targets 36th Flight Record on Starlink 10-42 | KeepTrack Space Brief

Falcon 9 B1067 Targets 36th Flight Record on Starlink 10-42 | KeepTrack Space Brief

SpaceX Falcon 9 booster B1067 set for 36th flight Thursday with Starlink 10-42 mission from Cape Canaveral. Long March 10B debuts Friday in China.

X Report 20 Mar 2025

X Report 20 Mar 2025

SpaceX successfully rotates Crew-9 and Crew-10 on the ISS and launches new Starlink satellites with direct-to-cell capability.

Space Brief 16 Nov 2025

Space Brief 16 Nov 2025

Today's highlights include SpaceX's record-breaking Falcon 9 launches, Dream Chaser's testing success, and Blue Origin's latest New Glenn achievements.

X Report 11 Jun 2025

X Report 11 Jun 2025

SpaceX successfully launched 23 Starlink satellites while facing delays in launching the Axiom Space mission due to a propellant leak. Additionally, new US broadband rules favor Starlink's expansion into rural markets.

Space Brief 18 Sep 2025

Space Brief 18 Sep 2025

Today's coverage includes China's recent satellite launch, the Space Force's challenges with current tracking capabilities, and advancements in nuclear propulsion from Ohio State.

Starlink Constellation Size Nears 10,000, X Report 16 Mar 2026

Starlink Constellation Size Nears 10,000, X Report 16 Mar 2026

Starlink constellation size in March 2026: 9,996 satellites in orbit and 9,986 working from 11,504 launched, as SpaceX deorbits legacy V1.0 hardware.

SpaceX Launches 29 Starlink Satellites From Cape Canaveral | KeepTrack X Report

SpaceX Launches 29 Starlink Satellites From Cape Canaveral | KeepTrack X Report

SpaceX deploys 29 Starlink satellites from Cape Canaveral on the Starlink 6-100 mission. Falcon 9 lifted off at 6:31 p.m. EST continuing SpaceX's dominant satellite internet market position.