USA 300 (45610)

COSPAR: 2020-029B | Alt Name: USA 300
DECAYED

Image
USA 300 Satellite Image
Additional Sources
Launch Details

Launch Date

May 17, 2020

Launch Pad

SLC41

Launch Vehicle

Atlas V 501

Orbital Elements

NORAD ID

45610

International Designator

2020-029B

Decay Date

Unknown

Basic Satellite Info

Name

USA 300

Alternative Name

USA 300

Type

Payload

Status

Operational

Owner

USAFA

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Summary
The USA 300 satellite, also known by its OBJECT_ID 2020-029B and NORAD_CAT_ID 45610, is an experimental spacecraft launched on May 17, 2020, from the AFETR SLC41 launch pad using an Atlas V 501 vehicle. It was built by UNKUS for USAFA (United States Air Force Academy) and has a bus configuration of ESPASat. The satellite measures 1 meter in length with a diameter of 0.6 meters, weighing 140 kg at launch and also dry mass. Its payload is listed as an "Unknown DoD Sat." It carries equipment including MEP, MMA, CANOE, ACES, and SkyPad, powered by solar cells and batteries. USA 300's motor type is the Magnetogradient Electrostatic Plasma Truster. The satellite achieved stability on May 28, 2020. Its purpose remains experimental in nature.
Physical Characteristics

Length

1

Diameter

0.6

Span

1

Dry Mass

140

Launch Mass

140

Shape

Box

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Unknown DoD Sat

Purpose

Experimental

Mission

Experimental

Manufacturer

UNKUS

Life Expectancy

Unknown

Bus

ESPASat

Configuration

Unknown

Motor

Magnetogradient Electrostatic Plasma Truster

Equipment

MEP, MMA, CANOE, ACES, SkyPad

Power System

Solar cells, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

Crew-11 Medical Evacuation Set for January 14, Starlink Mission Succeeds | KeepTrack X Report

Crew-11 Medical Evacuation Set for January 14, Starlink Mission Succeeds | KeepTrack X Report

NASA confirms first-ever ISS medical evacuation for January 14 via Crew Dragon. SpaceX launches 29 Starlink satellites in third mission of 2026. Artemis 2 moon mission timeline unaffected.

X Report 24 Aug 2025

X Report 24 Aug 2025

SpaceX successfully launched its CRS-33 Dragon cargo mission to the ISS, while preparations for the upcoming Starship Flight 10 continue, highlighting significant advancements in both cargo operations and test flight reliability.

The Day Fiery Failure Launched NASA

The Day Fiery Failure Launched NASA

Sixty-eight years ago, America's first satellite exploded on the launchpad in front of the entire world. But from the ashes of Vanguard TV-3 came the determination that would eventually win the Space Race.

Space Brief 18 Jul 2025

Space Brief 18 Jul 2025

Today's highlights include Space Force prioritizing military missions, testing new GPS satellite software, and international defense collaborations impacting space assets.

Space Brief 7 Mar 2025

Space Brief 7 Mar 2025

Key insights from the latest SpaceX Starship breakup, the establishment of a new satellite mobile service, and enhancing America's missile shield capabilities through satellites.

Space Brief 9 May 2025

Space Brief 9 May 2025

Today's briefing covers new satellite projects, military tech advancements, and insights into missile defense strategies. Discover partnerships in satellite design and exciting developments in space military technology.

The Day America's Moon Rocket Began Its Journey

The Day America's Moon Rocket Began Its Journey

Fifty-nine years ago, a revolutionary new rocket thundered skyward from Cape Kennedy, testing the spacecraft that would eventually carry astronauts to the lunar surface

Space Brief 6 Mar 2025

Space Brief 6 Mar 2025

Today's brief covers secret Space Force payloads monitoring China's satellites, collaborations reducing satellite tracking delays, and new AI projects for military operations.