Rocket Lab Neutron Books 5 Launches, Space Brief 8 May 2026
Rocket Lab Neutron launch schedule holds at Q4 2026 for the first flight as a five-launch contract lands; barge recovery starts on flight two.
EXPLORER 18 (IMP-1) (00693)
COSPAR: 1963-046A | Alt Name: IMP 1
DECAYED
Image
Additional Sources
Launch Details
Launch Date
November 27, 1963
Launch Site
Launch Pad
LC17B
Launch Vehicle
Thor Delta C
Orbital Elements
NORAD ID
00693
International Designator
1963-046A
Decay Date
12/30/1965
Basic Satellite Info
Name
EXPLORER 18 (IMP-1)
Alternative Name
IMP 1
Type
Payload
Status
Decayed
Owner
GSFC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
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.
Physical Characteristics
Length
0.3
Diameter
0.7
Span
2.5
Dry Mass
63
Launch Mass
63
Shape
Oct Cyl + 4 Pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
IMP A
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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