Space Brief 17 Dec 2025
Today's stories cover Rocket Lab's innovative DiskSat launch, Digantara's expansion to missile defense, and DARPA's satellite surveillance network expansion, among other updates in military and satellite technology.
Launch Date
April 21, 1982
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-U
NORAD ID
13145
International Designator
1982-035B
Decay Date
4/29/1982
Name
SL-4 R/B
Alternative Name
Soyuz-U 39-426 Blok-I
Type
Status
Owner
RVSN
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Length
6.7
Diameter
2.7
Span
6.7
Dry Mass
2350
Launch Mass
2350
Shape
Cyl
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
11S510
Purpose
Unknown
Mission
Unknown
Manufacturer
PROG
Life Expectancy
Unknown
Bus
Blok-I
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
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