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Space Acronyms
Space Acronyms
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2025-03-16 17:26
Acronyms Used in the Space Industry, Astronautics, and Astronomy
General Space Systems
ACS
– Attitude Control System
ADCS
– Attitude Determination and Control System
CDR
– Critical Design Review
CDS
– CubeSat Design Specification
COMMS
– Communication Subsystem
COTS
– Commercial Off-The-Shelf
DSN
– Deep Space Network
EPS
– Electric Power Supply
OBC
– On-Board Computer
PCDU
– Power Control and Distribution Unit
TMTC
– Telemetry Telecommand
TT&C
– Telemetry, Tracking, and Control
TVC
– Thrust Vector Control
OMNI
– Omni-Directional Antenna
Space Physics and Orbits
CME
– Coronal Mass Ejection (eruptive emission from the Sun)
GCR
– Galactic Cosmic Rays
GEO
– Geostationary Orbit
GNSS
– Global Navigation Satellite Systems
HEO
– Highly Elliptical Orbit
LEO
– Low Earth Orbit
MEO
– Medium Earth Orbit
SAA
– South Atlantic Anomaly
TLE
– Two-Line Elements (a format for distributing orbital element data)
Space Missions and Agencies
FRR
– Flight Readiness Review
HST
– Hubble Space Telescope
ISS
– International Space Station
JPL
– Jet Propulsion Laboratory
STS
– Space Transportation System
Spacecraft Components and Systems
RACH
– Random Access Channel
RSSI
– Received Signal Strength Indication
RTG
– Radioisotope Thermoelectric Generator
RW
– Reaction Wheel
Space Radiation and Anomalies
SEE
– Single Event Effect
SEL
– Single Event Latch-Up
SEU
– Single Event Upset
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