Space Brief 17 May 2025
Today's brief covers SES's satellite orchestration, SpaceX's defense role, cyber scorecards in DoD, and more.
EP 1 (11731)
COSPAR: N/A | Alt Name: EP 1
DECAYED
Image
Additional Sources
Launch Details
Launch Date
March 3, 1980
Launch Site
AFWTR
Launch Pad
Unknown
Launch Vehicle
Unknown
Orbital Elements
NORAD ID
11731
International Designator
N/A
Decay Date
Unknown
Basic Satellite Info
Name
EP 1
Alternative Name
EP 1
Type
Payload
Status
Unknown
Owner
NRO/NRL
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
EP 1 is a US satellite with the NORAD catalog ID 11731, operated by NRO/NRL and also known as EP 1. Launched on March 3, 1980, from AFWTR (Air Force Western Test Range), it belongs to the NOSS SSU category of satellites manufactured by MM. The satellite has a box-like shape with an antenna, measures 0.9 meters in length and 0.4 meters in diameter, with a span of 10 meters. It has a launch mass and dry mass of 200 kilograms each. EP 1 carries the payload PARCAE 3 SSU 1 but lacks detailed information on its specific purpose or mission.
Physical Characteristics
Length
0.9
Diameter
0.4
Span
10
Dry Mass
200
Launch Mass
200
Shape
Box + Ant
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
PARCAE 3 SSU 1
Purpose
Unknown
Mission
Unknown
Manufacturer
MM
Life Expectancy
Unknown
Bus
NOSS SSU
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
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