YZ-1 R/B (41929)

COSPAR: 2015-019C | Alt Name: Yuanzheng-1 Y1

Image
YZ-1 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

March 30, 2015

Launch Site

XICLF

Launch Pad

LC2

Launch Vehicle

Chang Zheng 3C/YZ-1

Orbital Elements

NORAD ID

41929

International Designator

2015-019C

Epoch

Tue, 07 Jul 2026 11:49:27 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

14.93°

Right Ascension

89.01°

Eccentricity

Calculating...

Argument of Perigee

313.13°

Period

5158.11 min

Mean Motion

0.28 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

YZ-1 R/B

Alternative Name

Yuanzheng-1 Y1

Type

Rocket Body

Status

Space Junk

Owner

CASC

Country

China

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 41929U 15019C   26188.49268302 -.00000058  00000-0  00000-0 0  9994
2 41929  14.9250  89.0081 6951594 313.1320   1.0158  0.27917209 10829

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

4

Diameter

3

Span

4

Dry Mass

2075

Launch Mass

3590

Shape

Double cone

Radar Cross Section

2.4964

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

YZ-1

Purpose

Unknown

Mission

Unknown

Manufacturer

CALT

Life Expectancy

Unknown

Bus

YZ-1

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.

Kratos Wins $446M Space Force Missile-Warning Contract | KeepTrack Space Brief

Kratos Wins $446M Space Force Missile-Warning Contract | KeepTrack Space Brief

Kratos Defense awarded $446M Space Force contract for RMWT missile-warning ground systems. Rocket Lab secures $190M Pentagon deal for 20 hypersonic test flights.

X Report 13 Jan 2025

X Report 13 Jan 2025

SpaceX gears up for a series of launches, including Starlink deployments, lunar missions, and updates on the Starship program.

Blue Origin Announces 5,400-Satellite Constellation to Rival Starlink | KeepTrack X Report

Blue Origin Announces 5,400-Satellite Constellation to Rival Starlink | KeepTrack X Report

Blue Origin reveals plans for 5,400+ satellite constellation targeting enterprise and government with 6 Tbps capacity. SpaceX launches first West Coast Starlink mission of 2026 from Vandenberg.

X Report 18 Nov 2025

X Report 18 Nov 2025

SpaceX successfully launched the Sentinel-6B satellite to monitor global sea levels while resuming daytime rocket launches. Furthermore, delays in the Starship timeline impact NASA's Artemis 3 mission schedule.

Air Force One Gets Starlink, Astrobotic Acquired | KeepTrack Space Brief

Air Force One Gets Starlink, Astrobotic Acquired | KeepTrack Space Brief

Trump's interim Air Force One—a $400M Boeing 747-8—equipped with Starlink for presidential communications. First confirmed LEO constellation use for White House comms.

X Report 26 Nov 2025

X Report 26 Nov 2025

This edition highlights SpaceX's ambitious plans for Starship in light of recent developments, a busy launch week featuring multiple missions, and the latest updates on Starlink's operational status.

Space Brief 27 Jan 2025

Space Brief 27 Jan 2025

Highlights include US military astronaut rescue drills, China's commercial involvement in lunar missions, ESA's budget proposals, global opposition to space advertising, and NASA lunar landers.

Space Brief 12 Mar 2025

Space Brief 12 Mar 2025

Today's space news highlights include the proposed budget expansion for the U.S. Space Force, a new CubeSat milestone for ESA's asteroid mission, and challenges with SpaceX's Starlink launch. Also, we celebrate the one-year anniversary of the Aries SN1 satellite in orbit.