CZ-3 R/B (20559)

COSPAR: 1990-030B | Alt Name: CZ-3 Y7 Stage 3

Image
CZ-3 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

April 7, 1990

Launch Site

XICLF

Launch Pad

LC3

Launch Vehicle

Chang Zheng 3

Orbital Elements

NORAD ID

20559

International Designator

1990-030B

Epoch

Sat, 04 Jul 2026 00:21:35 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

30.81°

Right Ascension

36.31°

Eccentricity

Calculating...

Argument of Perigee

227.04°

Period

192.09 min

Mean Motion

7.50 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

CZ-3 R/B

Alternative Name

CZ-3 Y7 Stage 3

Type

Rocket Body

Status

Space Junk

Owner

MAI2

Country

China

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 20559U 90030B   26185.01499938  .00061333  00000-0  10355-2 0  9990
2 20559  30.8090  36.3083 4023020 227.0394  91.4146  7.49645104250219

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

7.5

Diameter

2.3

Span

7.5

Dry Mass

2000

Launch Mass

5000

Shape

Cyl

Radar Cross Section

9.17

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

CZ-3 Stage 3

Purpose

Unknown

Mission

Unknown

Manufacturer

BWYIC

Life Expectancy

Unknown

Bus

CZ-3 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.

Falcon Heavy Returns | A Six-Ton Bet on Geostationary Broadband

Falcon Heavy Returns | A Six-Ton Bet on Geostationary Broadband

Falcon Heavy flew for the first time in eighteen months on April 29, 2026, expending its center core to push Viasat's final ViaSat-3 satellite toward geostationary orbit. The mission is a flagship rocket doing what only it can still do, for an operator betting six tons of high-throughput hardware on a market Starlink is rapidly redefining.

Booster 19 Return Imminent as Pad 2 Refinements Continue | KeepTrack X Report

Booster 19 Return Imminent as Pad 2 Refinements Continue | KeepTrack X Report

SpaceX is finalizing Pad 2 upgrades at Starbase ahead of Booster 19's return flight, as Starlink's active constellation holds at 10,185 satellites.

X Report 20 Aug 2025

X Report 20 Aug 2025

SpaceX makes significant strides with Starship Flight Test 10 approved and updates on the new Starbase pad design.

FCC Approves 7,500 More Starlink Satellites, SpaceX Wins $739M Launch Contract | KeepTrack X Report

FCC Approves 7,500 More Starlink Satellites, SpaceX Wins $739M Launch Contract | KeepTrack X Report

FCC approves 7,500 additional Starlink Gen2 satellites. Space Force awards SpaceX $739M for nine national security launches. NASA plans Crew-11 medical evacuation from ISS on January 14.

The Day Space Station Crews Gained Their Window on the World

The Day Space Station Crews Gained Their Window on the World

Fifteen years ago, Space Shuttle Endeavour launched on a mission that would give International Space Station astronauts their most spectacular view of Earth through the innovative Cupola observatory

Space Brief 6 Sep 2025

Space Brief 6 Sep 2025

Today's brief covers China's latest experimental launch to GEO and new commercial satellites, insights from hyperspectral imagery on underground structures, and the Space Force's material testing for Mars missions.

Space Force Kills Resilient GPS Program, China Tests Reusable Long March 12B | KeepTrack Space Brief

Space Force Kills Resilient GPS Program, China Tests Reusable Long March 12B | KeepTrack Space Brief

Space Force terminates Resilient GPS satellite program. China successfully tests Long March 12B reusable first stage at Jiuquan. GE and Lockheed validate detonation ramjet for hypersonic missiles.

China Files Plans for 200,000-Satellite Megaconstellation With ITU | KeepTrack Space Brief

China Files Plans for 200,000-Satellite Megaconstellation With ITU | KeepTrack Space Brief

China files ITU paperwork for megaconstellations totaling nearly 200,000 satellites. SpaceX launches first rideshare mission of 2026 from Vandenberg. NASA plans ISS crew medical evacuation.