Launch Date
October 4, 1964
Launch Site
Launch Pad
LC17A
Launch Vehicle
Thor Delta C
NORAD ID
00889
International Designator
1964-060A
Decay Date
1/30/1966
Name
EXPLORER 21 (IMP-2)
Alternative Name
IMP 2
Type
Status
Owner
GSFC
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
0.2
Diameter
0.7
Span
2.5
Dry Mass
62
Launch Mass
62
Shape
Oct Cyl + 2 Pan + 2 Ant
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
IMP B
Purpose
Unknown
Mission
Unknown
Manufacturer
GSFC
Life Expectancy
Unknown
Bus
IMP
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
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