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TJS-4 (44637)
COSPAR: 2019-070A | Alt Name: Tongxin Jishu Shiyan 4
Image
Additional Sources
Launch Details
Launch Date
October 17, 2019
Launch Site
XICLF
Launch Pad
LC3
Launch Vehicle
Chang Zheng 3B
Orbital Elements
NORAD ID
44637
International Designator
2019-070A
Epoch
Sat, 04 Jul 2026 04:01:13 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
0.06°
Right Ascension
86.75°
Eccentricity
Calculating...
Argument of Perigee
321.67°
Period
1436.10 min
Mean Motion
1.00 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
TJS-4
Alternative Name
Tongxin Jishu Shiyan 4
Type
Payload
Status
Operational
Owner
CASC
Country
China
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 44637U 19070A 26185.16751715 -.00000158 00000-0 00000-0 0 9991
2 44637 0.0561 86.7506 0003847 321.6673 17.6276 1.00271746 24700
Source: Celestrak
Summary
TJS-4, also known as Tongxin Jishu Shiyan 4, is a satellite operated by CASC and manufactured by CAST. Launched on October 17, 2019, from Xichang Satellite Launch Center (LC3) using the Chang Zheng 3B launch vehicle, TJS-4 has a configuration of DFH-4 with dimensions measuring 5 meters in length and 2.5 meters in diameter, featuring a span of 32 meters. The satellite's dry mass is 2,500 kg and it has a launch mass of 4,000 kg. TJS-4 is powered by two deployable solar arrays and batteries, with its purpose possibly involving SIGINT (Signals Intelligence). Its shape consists of a box with two panels and a dish antenna. The satellite's equipment and motor are listed as DFH-4 LAE.
Physical Characteristics
Length
5
Diameter
2.5
Span
32
Dry Mass
2500
Launch Mass
4000
Shape
Box+ 2 panels +dish
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Qianshao-3 02 xing
Purpose
SIGINT ?
Mission
SIGINT ?
Manufacturer
CAST
Life Expectancy
Unknown
Bus
DFH-4
Configuration
Unknown
Motor
DFH-4 LAE
Equipment
Unknown
Power System
2 deployable 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
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