X Report 15 Jan 2025
SpaceX successfully launches two lunar landers and clears another milestone with Transporter-12 rideshare mission.
JB-3 2 (ZY 2B) (27550)
COSPAR: 2002-049A | Alt Name: Zi Yuan 2-02
DECAYED
Image
Additional Sources
Launch Details
Launch Date
October 27, 2002
Launch Site
TAISC
Launch Pad
LC7
Launch Vehicle
Chang Zheng 4B
Orbital Elements
NORAD ID
27550
International Designator
2002-049A
Decay Date
1/22/2015
Basic Satellite Info
Name
JB-3 2 (ZY 2B)
Alternative Name
Zi Yuan 2-02
Type
Payload
Status
Decayed
Owner
ZZB
Country
China
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
The JB-3 2 (ZY 2B), also known as Zi Yuan 2-02, is an Earth observation satellite operated by ZZB and manufactured by CAST in China. Launched on October 27, 2002, from the Taiyuan Satellite Launch Center using a Chang Zheng 4B launch vehicle, it has a configuration based on the Phoenix-Eye-2 bus. The satellite measures approximately 1.8 meters in length with a diameter of 2 meters and spans 9.8 meters when its components are deployed. It has a dry mass of 1400 kilograms and a launch mass of 1450 kilograms, powered by two deployable solar arrays and batteries. The satellite's mission is to conduct Earth observation using the Jianbing-3 02 xing payload over an expected lifetime of 2 years. Its shape is described as Box + Pan with a radar cross-section (RCS) of 4.796 square meters.
Physical Characteristics
Length
1.8
Diameter
2
Span
9.8
Dry Mass
1400
Launch Mass
1450
Shape
Box + Pan
Radar Cross Section
4.796
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Jianbing-3 02 xing
Purpose
Earth Observation
Mission
Earth Observation
Manufacturer
CAST
Life Expectancy
2 years
Bus
ZY
Configuration
Phoenix-Eye-2 bus
Motor
AOCS 20N
Equipment
Unknown
Power System
2 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
SpaceX Targets 600th Falcon Booster Landing, X Report 19 Apr 2026
SpaceX targets its 600th Falcon 9 booster landing on Starlink 17-22, lofting 25 satellites from Vandenberg. Plus a 2028 SpaceX ride for ESA's Mars rover.
Falcon 9 Lofts 46 Payloads Including CAS500-2 | KeepTrack X Report
SpaceX's third rideshare mission of 2026 delivered South Korea's CAS500-2 imager and 45 secondary payloads to Sun-synchronous orbit on Falcon 9.
Space Brief 29 Jan 2025
Today's briefing covers the Space Force's plans for future launches, new initiatives in missile defense, and the latest on military and aerospace advancements.
Space Brief 3 Sep 2024
Today's brief covers China's Yaogan-43 satellite launch, delays in ESA's BepiColombo mission, regulatory approval for OHB's KKR deal, and an upcoming Sentinel-2C launch.
Space Brief 2 Dec 2025
Today's brief covers China's classified Shijian-28 satellite launch, AI-designed spacecraft records, and upcoming global launch activities.
Atlas 5 Retires After Final 551 Flight to Amazon Kuiper | KeepTrack Space Brief
ULA launches the final Atlas 5 551 configuration—its heaviest variant with 5 solid boosters—carrying Amazon's Project Kuiper satellite to low Earth orbit from Cape Canaveral.
X Report 1 Apr 2025
SpaceX launches its first crewed mission over Earth's poles and FAA concludes investigation into the Starship Flight 7 incident.