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PION 4 (20161)
COSPAR: 1989-055D | Alt Name: Pion-4
DECAYED
Image
Additional Sources
Launch Details
Launch Date
July 18, 1989
Launch Site
PLMSC
Launch Pad
LC16/2
Launch Vehicle
Soyuz-U
Orbital Elements
NORAD ID
20161
International Designator
1989-055D
Decay Date
9/19/1989
Basic Satellite Info
Name
PION 4
Alternative Name
Pion-4
Type
Payload
Status
Decayed
Owner
KAIK/MOM
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
PION 4, also known as Pion-4, is a satellite with a spherical configuration measuring 0.6 meters in length, diameter, and span, weighing 78 kilograms at launch. It was manufactured by KAIK for the purpose of atmosphere density measurement and calibration and was launched on July 18, 1989, from PLMSC LC16/2 using a Soyuz-U launch vehicle. The satellite's owner is KAIK/MOM, and its payload is also named Pion-4. It operated for approximately two months after reaching a stable orbit on August 7, 1989. PION 4 was powered by batteries and equipped with a transmitter for communication purposes. Its dry mass and launch mass were both 78 kilograms, and it had an RCS of 0.14 without any motor or ADCS systems specified.
Physical Characteristics
Length
0.6
Diameter
0.6
Span
0.6
Dry Mass
78
Launch Mass
78
Shape
Sphere
Radar Cross Section
0.14
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Pion-4
Purpose
Atmosphere density, calibration
Mission
Atmosphere density, calibration
Manufacturer
KAIK
Life Expectancy
2 months
Bus
Pion
Configuration
Sphere
Motor
None
Equipment
Transmitter
Power System
Batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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