STARLINK-2636 (48357)

COSPAR: 2021-038E | Alt Name: Starlink 2636

Image
STARLINK-2636 Satellite Image
Additional Sources
Launch Details

Launch Date

May 4, 2021

Launch Pad

LC39A

Launch Vehicle

Falcon 9

Orbital Elements

NORAD ID

48357

International Designator

2021-038E

Epoch

Sat, 04 Jul 2026 06:25:21 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

53.16°

Right Ascension

175.77°

Eccentricity

Calculating...

Argument of Perigee

94.89°

Period

94.01 min

Mean Motion

15.32 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

STARLINK-2636

Alternative Name

Starlink 2636

Type

Payload

Status

Operational

Owner

SPXS

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 48357U 21038E   26185.26760537  .00003528  00000-0  12541-3 0  9993
2 48357  53.1578 175.7748 0001328  94.8862 265.2291 15.31701002284942

Source: Celestrak

Summary
STARLINK-2636 is a Starlink communication satellite launched on May 4, 2021, from Launch Complex 39A at Kennedy Space Center using a Falcon 9 launch vehicle. The spacecraft measures 0.2 meters in length and has a diameter of 2.8 meters with a span of 9 meters. It was manufactured by SpaceX (SPXS) and had a dry mass of 248 kilograms and a launch mass of 260 kilograms. Equipped with Ku/Ka-band payload capabilities and optical inter-satellite links, it is powered by solar arrays and batteries and uses Krypton ion thrusters for propulsion. The satellite's purpose is to provide communication services as part of the Starlink 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

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-L25-05

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

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.

Space Force Awards Counter-Surveillance Payload Contracts | KeepTrack Space Brief

Space Force Awards Counter-Surveillance Payload Contracts | KeepTrack Space Brief

Space Force RCO awarded SBIR contracts for radar-detection payloads to counter adversary surveillance of U.S. satellites. Follow-on miniaturization effort already planned.

The Day Humanity First Used a Planet to Navigate the Solar System

The Day Humanity First Used a Planet to Navigate the Solar System

Fifty-one years ago, Mariner 10 revolutionized space exploration by executing the first-ever planetary gravity assist at Venus, pioneering a technique that would transform how we explore the solar system

Space Brief 27 Apr 2025

Space Brief 27 Apr 2025

Today's highlights include SpaceX's dual Starlink launches, NASA's progress on the Dragonfly mission to Titan, and delays in Starlink's Indian market entry.

Japan's H3 Returns to Flight With 6 Satellites | KeepTrack Space Brief

Japan's H3 Returns to Flight With 6 Satellites | KeepTrack Space Brief

Japan's H3 rocket successfully launched June 11, deploying 6 smallsats to orbit after December failure. First return-to-flight for JAXA's flagship heavy-lift vehicle.

X Report 4 May 2025

X Report 4 May 2025

Today's brief highlights the successful launch of 29 Starlink satellites, progress on the Starship fleet, and ongoing adjustments in SpaceX's launch schedules.

STARLINK-4621 Faces Critical Conjunction as Eight Satellites Reenter | KeepTrack X Report

STARLINK-4621 Faces Critical Conjunction as Eight Satellites Reenter | KeepTrack X Report

A HIGH-risk conjunction between STARLINK-4621 and the defunct SL-18 rocket body leads the July 11 safety picture, with eight Starlink satellites set to reenter through July 14.

Starbase Pad 2 Preps for Booster 19, Starlink Disrupts Russian Comms | KeepTrack X Report

Starbase Pad 2 Preps for Booster 19, Starlink Disrupts Russian Comms | KeepTrack X Report

Starbase Pad 2 passes water-cooled deck test ahead of Booster 19. Starlink restrictions disrupt Russian battlefield communications. California city weighs banning Musk companies.

NROL-179 Starshield Satellites Launch from Vandenberg | KeepTrack X Report

NROL-179 Starshield Satellites Launch from Vandenberg | KeepTrack X Report

SpaceX launched NROL-179 from Vandenberg at 1:50 a.m. PDT June 19, carrying Starshield spy satellites for the National Reconnaissance Office.