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ALMAZ 1 (21213)
COSPAR: 1991-024A | Alt Name: Almaz-1
DECAYED
Image
Additional Sources
Launch Details
Launch Date
March 31, 1991
Launch Site
Launch Pad
LC200/40
Launch Vehicle
Proton-K
Orbital Elements
NORAD ID
21213
International Designator
1991-024A
Decay Date
10/17/1992
Basic Satellite Info
Name
ALMAZ 1
Alternative Name
Almaz-1
Type
Payload
Status
Decayed
Owner
ZIKH
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
ALMAZ 1, also known as Almaz-1, is a radar satellite based on a modified crewed spacecraft design, launched by ZIKH from the Tyuratam launch site using a Proton-K launch vehicle on March 31, 1991. The satellite has dimensions of 7 meters in length and 4.1 meters in diameter with a span of 15 meters. It weighs 18,500 kilograms at launch and is equipped with an S-band Synthetic Aperture Radar (SAR) and a radiometric scanner system (RMS). ALMAZ 1 was powered by two deployable solar arrays and batteries. Its shape consists of a stepped cylinder with two panels, providing a radar cross-section area of 63.51 square meters. The satellite's mission was to serve as a radar observation platform for Earth, though its operational lifetime reached only up to 2 years, falling short of the planned 2.5-year duration.
Physical Characteristics
Length
7
Diameter
4.1
Span
15
Dry Mass
18500
Launch Mass
18500
Shape
Step Cyl + 2 Pan
Radar Cross Section
63.51
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Mech-KU No. 305
Purpose
Radar satellite (modified crewed spacecraft)
Mission
Radar satellite (modified crewed spacecraft)
Manufacturer
ZIKH
Life Expectancy
2.5 years (planned); 2 years reached (#1870); 1.5 years reached (#1)
Bus
Almaz
Configuration
OPS Module
Motor
Unknown
Equipment
S-band Synthetic Aperture Radar (SAR) (#all); radiometric scanner system (RMS) (A #1)
Power System
2 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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