Space Brief 1 Nov 2025
Today's brief covers the future of military space operations, ESA's potential defense role, significant developments in satellite communications, and SpaceX's response to Artemis 3 comments.
Launch Date
February 18, 1961
Launch Site
AFWTR
Launch Pad
75-3-5
Launch Vehicle
Thor Agena B
NORAD ID
00084
International Designator
1961-006A
Decay Date
4/20/1962
Name
DISCOVERER 21
Alternative Name
Discoverer 21
Type
Status
Owner
AFBMD/ARPA
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Apologies, there is no summary for this satellite yet. I am working to generate these for every object in the catalog, but it is going to take time.
Length
2
Diameter
1.5
Span
2
Dry Mass
146
Launch Mass
146
Shape
Cone
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
CORONA RM-2
Purpose
Unknown
Mission
Unknown
Manufacturer
LMSD
Life Expectancy
Unknown
Bus
CORONA
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
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