UOSAT 12 (UO-36) (25693)

COSPAR: 1999-021A | Alt Name: UOSAT-OSCAR-36

Image
UOSAT 12 (UO-36) Satellite Image
Additional Sources
Launch Details

Launch Date

April 21, 1999

Launch Pad

LC109/95

Launch Vehicle

Dnepr

Orbital Elements

NORAD ID

25693

International Designator

1999-021A

Epoch

Sat, 04 Jul 2026 05:13:10 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

64.56°

Right Ascension

7.55°

Eccentricity

Calculating...

Argument of Perigee

222.31°

Period

97.02 min

Mean Motion

14.84 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

UOSAT 12 (UO-36)

Alternative Name

UOSAT-OSCAR-36

Type

Payload

Status

Non-operational

Owner

SSTL

Country

United Kingdom

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 25693U 99021A   26185.21748527  .00000500  00000-0  76851-4 0  9990
2 25693  64.5553   7.5522 0025598 222.3141 137.5992 14.84277277469374

Source: Celestrak

Summary
UOSAT 12 (UO-36), also known as UOSAT-OSCAR-36, is a satellite launched on April 21, 1999, from the TYSMC launch site using the Dnepr launch vehicle. The spacecraft, manufactured by SSTL, is configured with a Minisat-400 bus and has dimensions of 1 meter in length, 0.6 meters in diameter, and a span of 6 meters. Its dry mass is 325 kilograms, identical to its launch mass. UOSAT 12 serves the purposes of Earth observation and radio amateur communication and is powered by solar cells and batteries. The satellite's shape is described as Nonag Box + Ant with an RCS of 1.272. It was launched for SSTL and operates under a mission aimed at providing Earth observation data and facilitating amateur radio communications.
Physical Characteristics

Length

1

Diameter

0.6

Span

6

Dry Mass

325

Launch Mass

325

Shape

Nonag Box + Ant

Radar Cross Section

1.272

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

UoSAT-12

Purpose

Earth observation, Radio amateur communication

Mission

Earth observation, Radio amateur communication

Manufacturer

SSTL

Life Expectancy

Unknown

Bus

Minisat-400

Configuration

Minisat-400

Motor

Unknown

Equipment

Unknown

Power System

Solar cells, 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 Brief 24 Nov 2024

Space Brief 24 Nov 2024

Today's briefing covers Blue Origin's New Glenn nearing its first launch, SpaceX's 400th Falcon 9 mission with Starlink satellites, advancements in space-based weather prediction, and more.

Space Force Terminates $1.7B SCAR Contract, Relaunches | KeepTrack Space Brief

Space Force Terminates $1.7B SCAR Contract, Relaunches | KeepTrack Space Brief

Space Force terminated its $1.7B SCAR ground antenna modernization contract and is relaunching competition. Delays extend reliance on aging legacy systems for MEO and GEO satellite command.

Pentagon Allocates $8B for Space-Based Moving Target Tracking | KeepTrack Space Brief

Pentagon Allocates $8B for Space-Based Moving Target Tracking | KeepTrack Space Brief

Pentagon requests $8 billion for space-based moving target tracking constellation in FY2027 budget. New NORAD IDs expected as Space Force expands orbital ISR capabilities.

Space Brief 26 Oct 2025

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.

The Day That Changed Spaceflight Forever

The Day That Changed Spaceflight Forever

Thirty-nine years ago, the loss of Space Shuttle Challenger and its seven crew members forever transformed our approach to spaceflight safety and risk management

X Report 25 Feb 2025

X Report 25 Feb 2025

SpaceX has completed the investigation into Starship Flight 7, announcing causes ahead of the next planned launch, while numerous missions are lined up for launch this week.

X Report 14 Feb 2025

X Report 14 Feb 2025

Starship testing progresses at the Cape; Lynk Global secures funding amidst rising satellite competition.

Space Brief 22 Nov 2024

Space Brief 22 Nov 2024

Today's key topics include delays in Vulcan's national security launches, a significant network upgrade contract for the Space Force, and military interest in SpaceX's Starship.