UMBRA-04 (55050)

COSPAR: 2023-001AT | Alt Name: Umbra-04
DECAYED

Image
UMBRA-04 Satellite Image
Additional Sources
Launch Details

Launch Date

January 3, 2023

Launch Pad

LC40

Launch Vehicle

Falcon 9

Orbital Elements

NORAD ID

55050

International Designator

2023-001AT

Decay Date

9/3/2024

Basic Satellite Info

Name

UMBRA-04

Alternative Name

Umbra-04

Type

Payload

Status

Decayed

Owner

UMBRA

Country

United States

Constellation

N/A

Related Satellites

Major Events

N/A

Summary
UMBRA-04 is an Earth observation satellite equipped with X-band SAR technology launched by UMBRA on January 3, 2023, from LC40 at AFETR using a Falcon 9 launch vehicle. The satellite has dimensions of 0.7 meters in length and 0.5 meters in diameter, with a span of 3.8 meters. It has a dry mass of 60 kg and a launch mass of 65 kg. The spacecraft is powered by solar cells and batteries and has a box shape with two panels and a dish. Its purpose is to conduct radar-based Earth observation missions for the owner UMBRA, who also manufactured it.
Physical Characteristics

Length

0.7

Diameter

0.5

Span

3.8

Dry Mass

60

Launch Mass

65

Shape

Box + 2 Pan + Dish

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Umbra-04

Purpose

Earth observation, radar

Mission

Earth observation, radar

Manufacturer

UMBRA

Life Expectancy

Unknown

Bus

Umbra

Configuration

Unknown

Motor

None

Equipment

X-band SAR

Power System

Solar cells, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

Space Brief 18 Sep 2024

Space Brief 18 Sep 2024

Today's Space Brief covers Rocket Lab's IoT satellite launch, SpaceX's European Galileo satellites, FAA's fine on SpaceX, Polaris Dawn mission achievements, and more.

New Glenn Damaged in Hotfire Anomaly at LC-36 | KeepTrack Space Brief

New Glenn Damaged in Hotfire Anomaly at LC-36 | KeepTrack Space Brief

Blue Origin's New Glenn suffered a damaging anomaly during hotfire testing at Launch Complex 36, grounding the heavy-lift rocket indefinitely with no return-to-flight timeline announced.

X Report 10 Sep 2025

X Report 10 Sep 2025

SpaceX makes strides with United States national security satellites, securing substantial spectrum for Starlink's direct-to-cell services, and preparing for future Starship developments.

Rocket Lab Wins $190M Pentagon Hypersonic Contract | KeepTrack Space Brief

Rocket Lab Wins $190M Pentagon Hypersonic Contract | KeepTrack Space Brief

Rocket Lab secures $190M Pentagon deal for 20 hypersonic test flights over 4 years using Electron. Five missions annually trackable via Space-Track.

X Report 8 Oct 2025

X Report 8 Oct 2025

SpaceX successfully launched 28 Starlink satellites aboard a Falcon 9 rocket, marking significant advancements in their deployment and operational capabilities.

X Report 6 Nov 2025

X Report 6 Nov 2025

SpaceX successfully launched 29 Starlink satellites, marking the start of a busy month for their satellite deployment efforts. The mission is part of an ongoing expansion of their broadband internet constellation.

SpaceX's Military Pivot Takes Center Stage, X Report 19 Jul 2026

SpaceX's Military Pivot Takes Center Stage, X Report 19 Jul 2026

This Week In Space Episode 219 examines SpaceX's expanding military ties as Starlink's constellation tops 12,552 satellites launched.

Mike Melvill, 124 Meters, and the Morning Space Went Private

Mike Melvill, 124 Meters, and the Morning Space Went Private

On 21 June 2004, a 63-year-old test pilot rode a homebuilt rocket plane to 100,124 meters above the Mojave Desert, clearing the edge of space by about the length of a city block. He came down the first private astronaut in history, holding a sign that read 'SpaceShipOne, GovernmentZero.'