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YURI-3A (BS-3A) (20771)
COSPAR: 1990-077A | Alt Name: Yuri 3A
Image
Additional Sources
Launch Details
Launch Date
August 28, 1990
Launch Site
TANSC
Launch Pad
N
Launch Vehicle
H-1
Orbital Elements
NORAD ID
20771
International Designator
1990-077A
Epoch
Sat, 04 Jul 2026 01:17:42 GMT
Apogee
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Perigee
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Inclination
15.62°
Right Ascension
357.27°
Eccentricity
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Argument of Perigee
271.62°
Period
1457.32 min
Mean Motion
0.99 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
YURI-3A (BS-3A)
Alternative Name
Yuri 3A
Type
Payload
Status
Non-operational
Owner
NASDA/TSCJ
Country
Japan
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 20771U 90077A 26185.05395919 .00000023 00000-0 00000-0 0 9998
2 20771 15.6155 357.2724 0011479 271.6206 262.7601 0.98811277135745
Source: Celestrak
Summary
The YURI-3A (BS-3A) satellite, also known as Yuri 3A, was launched on August 28, 1990, from TANSC using the H-1 launch vehicle for communication purposes. Operated by NASDA/TSCJ, this satellite has a bus type of AS3000 and a configuration of AS-3000. It measures 3.2 meters in length, with a diameter of 1.3 meters and a span of 15 meters. The satellite's dry mass is 300 kg, and it had an initial launch mass of 570 kg. Equipped with three Ku-band transponders (with the potential for additional three), each operating at 120W TWTA and having a bandwidth of 27 MHz, YURI-3A offers a maximum EIRP of 54 dBW. Power is supplied by two deployable solar arrays along with batteries. The satellite's shape consists of a box design with two panels. It was manufactured by GEEW for communication purposes and has an RCS value of 1.6883.
Physical Characteristics
Length
3.2
Diameter
1.3
Span
15
Dry Mass
300
Launch Mass
570
Shape
Box + 2 Pan
Radar Cross Section
1.6883
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
BS 3A
Purpose
Communication
Mission
Communication
Manufacturer
GEEW
Life Expectancy
Unknown
Bus
AS3000
Configuration
AS-3000
Motor
H-1 AKM
Equipment
3 (+3) Ku-band transponders 120W TWTA, 27 MHz bandwidth, EIRP max 54 dBW
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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