STARLINK-1821 (46718)

COSPAR: 2020-073BA | Alt Name: Starlink 1821

Image
STARLINK-1821 Satellite Image
Additional Sources
Launch Details

Launch Date

October 18, 2020

Launch Pad

LC39A

Launch Vehicle

Falcon 9

Orbital Elements

NORAD ID

46718

International Designator

2020-073BA

Epoch

Fri, 03 Jul 2026 22:55:33 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

53.04°

Right Ascension

31.87°

Eccentricity

Calculating...

Argument of Perigee

210.61°

Period

92.60 min

Mean Motion

15.55 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

STARLINK-1821

Alternative Name

Starlink 1821

Type

Payload

Status

Partially operational

Owner

SPXS

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 46718U 20073BA  26184.95525037  .00124518  00000-0  17963-2 0  9994
2 46718  53.0417  31.8749 0003231 210.6097 149.4725 15.55096312315338

Source: Celestrak

Summary
STARLINK-1821 is a communication satellite operated by SPXS (SpaceX) and was launched on October 18, 2020, from LC39A at AFETR using the Falcon 9 launch vehicle. The satellite has dimensions of 0.2 meters in length, 2.8 meters in diameter, and a span of 9 meters. It weighs 248 kilograms dry and had an initial mass of 260 kilograms at launch. Equipped with Ku/Ka-band payload (all) and optical inter-satellite links on a few prototypes, it features solar arrays and batteries for power supply. The propulsion system uses Krypton ion thrusters. The satellite's shape is described as box plus pan configuration, designed primarily for communication purposes.

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-L13-49

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.

X Report 29 Mar 2025

X Report 29 Mar 2025

Starlink gains ground in geopolitical shifts, while SpaceX makes progress on next-gen facilities and prepares for Crew-11 mission to ISS.

Starship V3 Scrubbed & SpaceX Files $18.7B IPO | KeepTrack X Report

Starship V3 Scrubbed & SpaceX Files $18.7B IPO | KeepTrack X Report

SpaceX scrubbed Starship Flight 12's V3 debut due to a hydraulic pin fault, then filed an $18.7B IPO S-1 targeting Nasdaq under ticker SPCX.

X Report 14 Jun 2025

X Report 14 Jun 2025

SpaceX achieves significant milestones with the launch of new Starlink satellites and the production of its 10 millionth Starlink kit amidst ongoing challenges with space station delays.

X Report 22 Mar 2025

X Report 22 Mar 2025

SpaceX achieves its 450th Falcon 9 launch, setting a new turnaround record, while its competitor ULA remains grounded, awaiting clearance from the Space Force.

Space Beyond Books SpaceX Rideshare for Memorial Cubesat Mission | KeepTrack X Report

Space Beyond Books SpaceX Rideshare for Memorial Cubesat Mission | KeepTrack X Report

Space Beyond secures SpaceX rideshare launch slot for October 2027 memorial cubesat mission. Starlink constellation at 11,009 total satellites launched with 9,551 currently on orbit.

X Report 29 Apr 2025

X Report 29 Apr 2025

SpaceX achieves a significant milestone with its 250th Starlink mission, and Starlink eyes expansion into South Korea amid rising global demand for satellite internet. Meanwhile, Amazon's Project Kuiper launches its first operational mission, marking increased competition for Starlink.

X Report 23 Sep 2025

X Report 23 Sep 2025

SpaceX successfully launched the NROL-48 mission, growing the National Reconnaissance Office's satellite fleet. Additionally, NASA introduced ten new astronaut candidates, increasing female representation in its ranks.

X Report 18 Dec 2025

X Report 18 Dec 2025

SpaceX carried out a double-header Starlink launch from both coasts while milestones from Max Space and Lux Aeterna signal growth in the commercial space sector.