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s Central time zone, U.S.A.
S/C Spacecraft
S/N Signal to Noise
S/W Software
SA Selective Availability
SA Solar Array
SAA South Atlantic Anomaly
SABER Sounding of the Atmosphere using Broadband Emission Radiometry
SAC System Assurance Contract
SAD Solar Array Driver
SADM Solar Array Driver Mechanism
SAIC Science Applications International Corporation
SAMPEX Solar, Anomalous, and Magnetospheric Particle Explorer
SAO Smithsonian Astrophysical Observatory
SAS Solar Array Simulator
SAT Science Architecture Team
SBET Spacecraft Bus Engineering Team
SCCS Source Code Control System
SCHEDD Scheduler Daemon software
SCIP Sun Centered Imaging Package
SCOTCH Solar Coronagraph Optical Test Chamber
SDAC Solar Data Analysis Center
SDC STEREO Data Center
SDO Solar Dynamics Observatory
SDRAM Synchronous Dynamic Random Access Memory
SDT Science Definition Team
SEB SECCHI Electronics Box
SEC Sun-Earth Connection
SECAS Sun-Earth Connection Advisory Subcommittee
SECCHI Sun-Earth Connection Coronal and Heliospheric Investigation
SEE Solar Extreme Ultraviolet Experiment
SEE Single Event Effects; Space Environment & Effects
SEF Spectrometer Entrance Filter
SEI Silver Engineering Inc
SEL Single Event Latch-Up
SEP Solar Energetic Particles
SEPT Solar Electron Proton Telescope
SERB Space Experiments Review Board
SET Space Environment Testbed
SET Spacecraft Engineering Team
SETPath SET Pathfinder
SEU Single Event Upset
SEU Structure and Evolution of the Universe
SGT Stochastic Growth Theory
SIC Standard Industry Classification
SICM SECCHI Interface Contordination Memo
SIE Spectrometer for Irradiance in the Extreme-Ultraviolet
SIRTF Space Infrared Telescope Facility
SIT Solar Instrument Test
SIT Suprathermal Ion Telescope
SLA Slit Assembly
SM Structural Model
SMA Shaped Memory Alloy
SMEI Solar Mass Ejection Imager
SMEX Small Explorer
SMM Solar Maximum Mission
SMO Systems Management Office
SMT Soldering Specification
SOC Science Operations Center
SOHO Solar and Heliospheric Observatory
SOMO Space Operations Management Office
SONAR Solar Near-surface Active-region Rendering
SOT State of the Theme
SOT Select On Test
SOT Solar Optical Telescope
SOW Statement of Work
SP Spectro-Polarimeter
SPOT Systeme Probatoire pour l'Observation de la Terre
SQL Structured Query Language
SR&QA Safety, Reliability, and Quality Assurance
SRM&QA Safety, Reliability, Mission and Quality Assurance
SRAM Static Random Access Memory
SRD System Requirements Document
SRO Systems Review Office
SRR Systems Requirements Review
SSAC Space Science Advisory Committee
SSC STEREO Science Center
SScAC Space Science Advisory Committee
SSD Solid State Detector
SSD Space Sciences Division
SSE Solar System Exploration
SSPP SEE Solar Pointing Platform
SSR Solid State Recorder
SSS Front End Buildtm Program
ST Star Tracker
STDT Science & Technology Definition Team
STE A STEREO Experiment
STEREO Solar Terrestrial Relations Observatory
STK Satellite Tool Kit
STOL Spacecraft Test and Operations Language
STP Solar Terrestrial Probes
STP Space Test Program
STRV Space Technology Research Vehicle
SUMER Solar Ultraviolet Measurements of Emitted Radiation
SUROM Start-up Read Only Memory
SV Space Vehicle
SV Storage Variable
SVTF Spacecraft Vibration Test Facility
SW Software
SW Solar Wind
SWEA Solar Wind Electron Analyzer
SWG Science Working Group
SWIC SpaceWire Interface Card
SWS Solar Wind Sector
SWS Main Solar Wind Sector Main
SWS P/A Solar Wind Sector Proton Alpha
SWX Space Weather
SXI Soft X-ray Imager
SXI Solar X-ray Imager
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