Space Brief 5 Mar 2025
Today's brief covers developments in US military space initiatives, advancements in missile technology, and notable military contractor activities.
COSMOS 2126 (21101)
COSPAR: 1991-009B | Alt Name: Kosmos-2126
Image
Additional Sources
Launch Details
Launch Date
February 12, 1991
Launch Site
PLMSC
Launch Pad
LC133/3
Launch Vehicle
Kosmos 11K65M
Orbital Elements
NORAD ID
21101
International Designator
1991-009B
Epoch
Fri, 03 Jul 2026 21:31:29 GMT
Apogee
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Perigee
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Inclination
74.03°
Right Ascension
62.96°
Eccentricity
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Argument of Perigee
38.24°
Period
115.56 min
Mean Motion
12.46 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
COSMOS 2126
Alternative Name
Kosmos-2126
Type
Payload
Status
Unknown
Owner
UNKSR
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 21101U 91009B 26184.89687201 .00000001 00000-0 11480-3 0 9994
2 21101 74.0303 62.9633 0018798 38.2411 321.9967 12.46067979609794
Source: Celestrak
Summary
COSMOS 2126, also known as Kosmos-2126, is a military communication satellite launched on February 12, 1991, from the PLMSC launch site using LC133/3 and the Kosmos 11K65M launch vehicle. The spacecraft has dimensions of 0.8 meters in length, diameter, and span, with both dry and launch masses at 60 kilograms. It was manufactured by NPOPM and equipped with solar cells and batteries for power supply. Designed for a military communication mission, its operational lifespan was expected to be around six months. The satellite's shape is polyhedral, and it carries the Strela-1M Blok 45 No. 2 payload as part of its mission objectives.
Physical Characteristics
Length
0.8
Diameter
0.8
Span
0.8
Dry Mass
60
Launch Mass
60
Shape
Poly
Radar Cross Section
0.6785
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Strela-1M Blok 45 No. 2
Purpose
Military Communication
Mission
Military Communication
Manufacturer
NPOPM
Life Expectancy
6 months
Bus
Strela-1 11F625
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Solar cells, 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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