Space Brief 21 May 2025
Today's Space Brief covers significant events including a high-stakes missile defense program, recent Chinese satellite launches, military defense initiatives, and key profiles in defense leadership.
STARLINK-1855 (47142)
COSPAR: 2020-088W | Alt Name: Starlink 1855
DECAYED
Image
Additional Sources
Launch Details
Launch Date
November 25, 2020
Launch Site
Launch Pad
LC40
Launch Vehicle
Orbital Elements
NORAD ID
47142
International Designator
2020-088W
Decay Date
9/11/2021
Basic Satellite Info
Name
STARLINK-1855
Alternative Name
Starlink 1855
Type
Payload
Status
Decayed
Owner
SPXS
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
STARLINK-1855, also known as Starlink 1855, is a communication satellite launched by SpaceX (SPXS) on November 25, 2020, from the Cape Canaveral Air Force Station Launch Complex 40 using a Falcon 9 launch vehicle. The satellite has dimensions of approximately 0.2 meters in length, 2.8 meters in diameter, and spans up to 9 meters when fully deployed. Its dry mass is 248 kilograms with a total launch mass of 260 kilograms. It features a Ku/Ka-band payload (all) along with optical inter-satellite links on a few prototypes, and its propulsion system consists of Krypton ion thrusters. The satellite's power supply includes solar arrays and batteries. Its primary mission is communication purposes as part of the Starlink constellation network.
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.
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-L15-21
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
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
Space Brief 16 Oct 2024
In today's briefing: China accelerates its satellite megaconstellation. A comprehensive ESA-led optical data network is in the works, marking a key step in satellite communications. NASA's Artemis II crew visits Ohio in preparation for their lunar journey. SpaceX's record-breaking rocket launches continue. Plus, insights into nuclear rockets that could drastically shorten Mars missions.
Space Brief 27 Aug 2024
Today's highlights include the destruction of ABL Space Systems' rocket due to engine leaks, Firefly Aerospace's lunar lander pre-launch tests, and insights on U.S. military's space domain awareness enhancements.
China's Long March 10C Nails First Booster Recovery | KeepTrack Space Brief
China successfully recovered a Long March 10C first stage booster, positioning the methalox rocket as its primary commercial launcher. Reusable boosters reshape Beijing's LEO constellation strategy.
X Report 9 Dec 2024
SpaceX's latest Starlink satellite launch boosts their constellation and Starship development progresses steadily.
Space Brief 26 Oct 2025
Today's brief covers a new Space Force contract for advanced tracking systems, innovative debris removal strategies, pivotal new satellite launches, and significant updates in air quality tracking from orbit.
NASA Postpones Spacewalk Over Medical Concern, Sierra Space Delivers SDA Satellites Early | KeepTrack Space Brief
NASA delays first 2026 spacewalk due to ISS crew medical issue. Sierra Space completes SDA Tranche 2 satellite structures ahead of schedule. Space Force advances Handle 2.0 standardization.
X Report 19 Jul 2025
SpaceX successfully launched 24 Starlink satellites from California while investigations begin on a possible Starship salvage operation near Mexico.