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BEIDOU-3S IGSO-2S (40938)
COSPAR: 2015-053A | Alt Name: Beidou DW 20
Image
Additional Sources
Launch Details
Launch Date
September 29, 2015
Launch Site
XICLF
Launch Pad
LC3
Launch Vehicle
Chang Zheng 3B
Orbital Elements
NORAD ID
40938
International Designator
2015-053A
Epoch
Fri, 03 Jul 2026 16:13:32 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
49.20°
Right Ascension
258.59°
Eccentricity
Calculating...
Argument of Perigee
193.25°
Period
1436.32 min
Mean Motion
1.00 rev/day
Latitude
Calculating...
Longitude
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Altitude
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Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
BEIDOU-3S IGSO-2S
Alternative Name
Beidou DW 20
Type
Payload
Status
Standby
Owner
CNSA
Country
China
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 40938U 15053A 26184.67606626 -.00000100 00000-0 00000-0 0 9990
2 40938 49.1955 258.5862 0065741 193.2527 167.4360 1.00256009 39526
Source: Celestrak
Summary
BEIDOU-3S IGSO-2S, also known as Beidou DW 20, is a navigation satellite operated by CNSA (China National Space Administration). Launched on September 29, 2015, from Xichang Satellite Launch Center using the Chang Zheng 3B launch vehicle, it measures 2.5 meters in length and has a diameter of 1.7 meters with a span of 10 meters. The spacecraft carries the Beidou-3 I2-S payload for navigation purposes and is equipped with two deployable solar arrays and batteries for power generation. With a dry mass of 1,150 kg and launch mass of the same value, it was manufactured by CAST (Chinese Academy of Space Technology) and has an expected lifetime of 10 years. The satellite features a box shape with two panels and has a radar cross-section (RCS) of 61.2179 square meters.
Physical Characteristics
Length
2.5
Diameter
1.7
Span
10
Dry Mass
1150
Launch Mass
1150
Shape
Box + 2 Pan
Radar Cross Section
61.2179
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Beidou-3 I2-S
Purpose
Navigation
Mission
Navigation
Manufacturer
CAST
Life Expectancy
10 years
Bus
BD-3I
Configuration
Unknown
Motor
AKM
Equipment
?
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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