The Day America Gained New Eyes on Mars
Fifty-six years ago, a revolutionary spacecraft launched toward the Red Planet after being saved from disaster by two quick-thinking technicians who risked their lives to prevent a rocket collapse
TIANHUI 2-01B (44209)
COSPAR: 2019-024C | Alt Name: Tianhui-2 01-02
Image
Additional Sources
Launch Details
Launch Date
April 29, 2019
Launch Site
TAISC
Launch Pad
LC9
Launch Vehicle
Chang Zheng 4B
Orbital Elements
NORAD ID
44209
International Designator
2019-024C
Epoch
Wed, 01 Jul 2026 16:09:46 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
97.48°
Right Ascension
186.41°
Eccentricity
Calculating...
Argument of Perigee
81.69°
Period
94.94 min
Mean Motion
15.17 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
TIANHUI 2-01B
Alternative Name
Tianhui-2 01-02
Type
Payload
Status
Operational
Owner
GCDX
Country
China
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 44209U 19024C 26182.67345313 .00001828 00000-0 96496-4 0 9993
2 44209 97.4801 186.4142 0001931 81.6868 278.4584 15.16779260396906
Source: Celestrak
Summary
The TIANHUI 2-01B satellite, also known as Tianhui-2 01-02, was launched on April 29, 2019, from Taiyuan Satellite Launch Center (TAISC), LC9, using the Chang Zheng 4B launch vehicle. This Earth observation satellite, equipped with SAR technology for imaging purposes, is manufactured by SAST and operated by GCDX. The satellite measures 1 meter in length and diameter with a span of 3 meters. It has a dry mass of 1000 kg and the same launch mass. Power is supplied through solar arrays and batteries. TIANHUI 2-01B has a box shape with two panels, designed to perform Earth observation tasks as part of its mission.
Physical Characteristics
Length
1
Diameter
1
Span
3
Dry Mass
1000
Launch Mass
1000
Shape
Box + 2 Pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Tianhui 2 hao 01 zu 02 xing
Purpose
Earth observation (SAR)
Mission
Earth observation (SAR)
Manufacturer
SAST
Life Expectancy
Unknown
Bus
CAST-2000
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Map
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 16 Nov 2025
Today's highlights include SpaceX's record-breaking Falcon 9 launches, Dream Chaser's testing success, and Blue Origin's latest New Glenn achievements.
Space Brief 8 Jul 2025
Today's highlights include the cancellation of Starship landing plans, Planet Labs' defense expansion, and cutting-edge radiation-hardened tech for space and defense.
NASA Announces First-Ever ISS Medical Evacuation via SpaceX Crew Dragon | KeepTrack X Report
NASA plans first-ever medical evacuation from ISS using SpaceX Crew Dragon for Crew-11 astronaut. Starlink 6-96 mission scrubbed and rescheduled. Starbase Pad 1 tower and launch mount under review.
SpaceX Hits 10,000 Starlink Satellites in Orbit | KeepTrack Space Brief
SpaceX surpassed 10,000 simultaneous Starlink satellites in orbit after Starlink 17-24 deployed 25 satellites from California. Milestone reached in under 7 years.
X Report 23 Dec 2024
SpaceX successfully launches 21 Starlink satellites from Florida, marking another milestone in its satellite internet constellation. The Falcon 9 rocket was also successfully recovered at sea.
Space Brief 21 Apr 2025
Today's briefing highlights SpaceX's recent launch of spy satellites, a US Space Force contract for deep space tracking, and advancements in quantum communications in space.
Block 3 Starship Pad Work Accelerates at Starbase | KeepTrack X Report
SpaceX engineers are overhauling Starbase launch infrastructure for Block 3 Starships as Falcon 9 prepares another Starlink batch run.