SHIYAN 12 01 (SY-12 01) (50321)

COSPAR: 2021-129A | Alt Name: Shiyan 12-01

Image
SHIYAN 12 01 (SY-12 01) Satellite Image
Additional Sources
Launch Details

Launch Date

December 23, 2021

Launch Site

WSC

Launch Pad

LC201

Launch Vehicle

Chang Zheng 7A

Orbital Elements

NORAD ID

50321

International Designator

2021-129A

Epoch

Sat, 18 Jul 2026 19:20:58 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

3.75°

Right Ascension

79.48°

Eccentricity

Calculating...

Argument of Perigee

289.22°

Period

1439.23 min

Mean Motion

1.00 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

SHIYAN 12 01 (SY-12 01)

Alternative Name

Shiyan 12-01

Type

Payload

Status

Operational

Owner

CAST

Country

China

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 50321U 21129A   26199.80623808  .00000139  00000+0  00000+0 0  9999
2 50321   3.7543  79.4846 0002602 289.2178 252.5659 01.00053356 16813

Source: Celestrak

Summary
The SHIYAN 12 01 (SY-12 01) satellite, also known as Shiyan 12-01, was launched on December 23, 2021 from the Wenchang Spacecraft Launch Site (WSC), using the Chang Zheng 7A launch vehicle. Manufactured by CAST and owned by the same entity, the satellite has a bus model XYZ with dimensions of 5 meters in length and 3 meters in diameter, featuring a span of 9 meters. It weighs approximately 2000 kg when dry and was launched at a mass of 3000 kg. The satellite's configuration is described as "Box + 2 pan," and its power supply consists of solar arrays and batteries. The satellite’s specific mission purpose, motor type, equipment details, and major events are not specified in the provided data.
Physical Characteristics

Length

5

Diameter

3

Span

9

Dry Mass

2000

Launch Mass

3000

Shape

Box + 2 pan

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Shiyan 12-01

Purpose

?

Mission

?

Manufacturer

CAST

Life Expectancy

Unknown

Bus

XYZ

Configuration

Unknown

Motor

?

Equipment

Unknown

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.

Space Brief 17 Jun 2025

Space Brief 17 Jun 2025

Today's space brief covers key developments in satellite monitoring, U.K. defense contracts, and critical licensing reforms supporting national security.

Space Brief 20 Jun 2025

Space Brief 20 Jun 2025

Today's brief covers the nomination of a new Space Force leader, partnership efforts by Lockheed, Sweden's defense budget delay, Israeli military actions, Proba-3's imaging breakthrough, and Starlink's license to operate in India.

GOES-19, the Last Weather Sentinel

GOES-19, the Last Weather Sentinel

The final satellite in a multi-billion-dollar program that learned its hardest lesson from a clogged pipe. GOES-19 is now NOAA's eyes on every Atlantic hurricane - and it's already found dozens of comets no one was looking for.

SpaceX Valued at $1.25T as IPO Signals Intensify | KeepTrack X Report

SpaceX Valued at $1.25T as IPO Signals Intensify | KeepTrack X Report

SpaceX hits a $1.25 trillion valuation as IPO speculation mounts, Starlink 17-17 lifts off from Vandenberg, and a quantum sensor rides to orbit.

25 Starlinks Lofted from Vandenberg in Latest West Coast Push | KeepTrack X Report

25 Starlinks Lofted from Vandenberg in Latest West Coast Push | KeepTrack X Report

SpaceX launched 25 Starlink satellites from Vandenberg SFB on March 8, growing a constellation now totaling 9,924 active orbital nodes.

Space Brief 16 Aug 2025

Space Brief 16 Aug 2025

Today's brief covers ULA's new mission for the US Space Force, China's moon rocket test, delays in the DARC radar system, and SpaceX's Starlink launches.

X Report 10 Mar 2025

X Report 10 Mar 2025

SpaceX plans first Starship launch from Florida, and prepares for NASA’s SPHEREx and PUNCH missions from Vandenberg.

X Report 27 Dec 2024

X Report 27 Dec 2024

SpaceX rounds off a record-setting year with over 130 launches, achieving new milestones in Starship development and Starlink expansion.