CZ-4C R/B (47537)

COSPAR: 2021-007F | Alt Name: CZ-4C Y31 Stage 3

Image
CZ-4C R/B Satellite Image
Additional Sources
Launch Details

Launch Date

January 29, 2021

Launch Site

JSC

Launch Pad

LC43/94

Launch Vehicle

Chang Zheng 4C

Orbital Elements

NORAD ID

47537

International Designator

2021-007F

Epoch

Sat, 04 Jul 2026 05:26:15 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

63.45°

Right Ascension

262.30°

Eccentricity

Calculating...

Argument of Perigee

1.75°

Period

105.26 min

Mean Motion

13.68 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

CZ-4C R/B

Alternative Name

CZ-4C Y31 Stage 3

Type

Rocket Body

Status

Space Junk

Owner

CNSA

Country

China

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 47537U 21007F   26185.22656734 -.00000062  00000-0  28894-4 0  9997
2 47537  63.4478 262.3013 0304290   1.7488 358.4539 13.68046916271127

Source: Celestrak

Summary
A rocket body, also commonly referred to as an upper stage or spent rocket stage, is the structural shell left behind after a rocket has delivered its payload to orbit. These large and often heavy pieces of space hardware can remain in orbit for years, posing significant collision hazards as part of the growing space debris problem. If left uncontrolled, rocket bodies have the potential to reenter Earth's atmosphere unpredictably, which can lead to falling debris in populated areas. Additionally, they risk colliding with operational satellites or the International Space Station, creating more debris and putting human life at risk.
Physical Characteristics

Length

6.9

Diameter

2.9

Span

6.9

Dry Mass

1000

Launch Mass

1000

Shape

Cyl

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

CZ-4C Stage 3

Purpose

Unknown

Mission

Unknown

Manufacturer

SAST

Life Expectancy

Unknown

Bus

CZ-4 Stage 3

Configuration

Unknown

Motor

Unknown

Equipment

Unknown

Power System

Unknown

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.

Musk Addresses Orbital Data Center Crowding Fears | KeepTrack X Report

Musk Addresses Orbital Data Center Crowding Fears | KeepTrack X Report

Elon Musk pushed back on orbital crowding concerns as SpaceX eyes data centers in space, with 10,584 Starlink satellites currently operational.

Starship V3 Flight 12 Four Weeks Out, X Report 11 Mar 2026

Starship V3 Flight 12 Four Weeks Out, X Report 11 Mar 2026

Starship V3 timeline: Musk puts Flight 12 about 4 weeks out, early to mid April 2026. SpaceX also hit 30 missions of 2026 with the 15,000-lb EchoStar 25.

Artemis 2 Delayed by Upper Stage Issue, Falcon 9 Hits 33rd Flight | KeepTrack Space Brief

Artemis 2 Delayed by Upper Stage Issue, Falcon 9 Hits 33rd Flight | KeepTrack Space Brief

NASA delays Artemis 2 for SLS upper stage fix and pad rollback. SpaceX Falcon 9 booster shatters reuse record with 33rd flight. Tory Bruno joins Blue Origin for defense work.

X Report 25 Jun 2025

X Report 25 Jun 2025

SpaceX successfully launched the historic Axiom-4 mission to the ISS, marking a significant milestone in private space travel, while also expanding Starlink's reach into Vietnam's healthcare sector.

FCC Shuts SpaceX Out of Key D2D Spectrum, X Report 25 Apr 2026

FCC Shuts SpaceX Out of Key D2D Spectrum, X Report 25 Apr 2026

FCC dismisses SpaceX spectrum challenges, blocking key D2D frequencies. A $57M Golden Dome crosslink demo and software group seat soften the blow.

Musk Denies SpaceX AI Phone Report; EchoStar Bankruptcy | KeepTrack X Report

Musk Denies SpaceX AI Phone Report; EchoStar Bankruptcy | KeepTrack X Report

SpaceX hits 77 Falcon 9 launches in 2026 as EchoStar subsidiaries file Chapter 11 and Musk disputes WSJ AI phone claims.

Joe Engle and the Youngest Astronaut Wings Ever Earned

Joe Engle and the Youngest Astronaut Wings Ever Earned

On 29 June 1965, a young Air Force test pilot rode a rocket-powered airplane to 280,600 feet above the California desert. He landed ten minutes later as the youngest person ever to earn astronaut wings.

Artemis 2 Tracker - Follow Orion's Flight Path in 3D

Artemis 2 Tracker - Follow Orion's Flight Path in 3D

Follow the complete Artemis II mission in KeepTrack's 3D tracker. Replay Orion's full flight path from launch through the lunar flyby to Pacific splashdown, and scrub to any moment of the ten-day mission.