| AIA | Atmospheric Imaging Assembly (instrument on SDO) |
| AM | Amplitude Modulation |
| APT | Advanced Product Testing, Longmont, Colorado |
| ARAM | Application RAM |
| ASF | Advanced Streaming Format |
| ATS | Advanced Tape Services |
| AXS | Advanced X-ray Spectrometer |
| BAT | Bench Acceptance Test |
| BB | Bread Board |
| BOL | Beginning of Life |
| CASA | Center for Astrophysics and Space Astronomy, CU |
| CBE | Current Best Estimate |
| CC | Contamination Control |
| CCD | Charge Coupled Device |
| C&DH | Command and Data Handling |
| CDPR | Critical Design Peer Review |
| CDR | Critical Design Review |
| CDRL | Contract Data Requirements List |
| CE | Conductive Emissions |
| CEB | Camera Electronics Box |
| CELIAS | Charge, Element, and Isotope Analysis System (on SOHO) |
| CG | Center of Gravity |
| CM | Configuration Management |
| CMAD | Calibration Measurement and Algorithm Document |
| CMD/TLM | Command/Telemetry |
| COTS | Commercial Off the Shelf |
| CP | Command Processor |
| cPCI | Compact Peripheral Component Interface |
| CPT | Comprehensive Performance Test |
| CPU | Computer Processing Unit |
| CS | Conducted Susceptibility |
| CT | Cadence Time |
| CTE | Charge Transfer Efficiency |
| CU | University of Colorado, Boulder |
| CVS | Concurrent Versions Systems |
| DCR | Document Change Request |
| DDS | Data Dissemination Subsystem |
| DOOR | Dynamic Object Orientated Requirements |
| DPO | Data Processing Operations |
| DSF | Detailed Schedule File |
| EE | Electrical Engineering |
| EEB | EVE Electrical Box |
| EEPROM | Electrical Erasable Programmable Read-Only Memory |
| EGSE | Electrical Ground Support Equipment |
| ELDRS | Enhanced Low Dose Rate Sensitivity |
| EMC | Electromagnetic Compatibility |
| EMI | Electromagnetic Interference |
| EOP | EVE Optics Package |
| ESD | Electrostatic Discharge |
| ESP | Euv Spectrophotometer |
| ETU | Engineering Test Unit |
| EUV | Extreme Ultraviolet |
| EVE | Extreme ultraviolet Variability Experiment |
| FADR | Fabrication and Assembly Discrepancy Report |
| FAI | Fabrication and Assembly Instructions |
| FDS | Flight Dynamics System |
| FEL | Field Emission Lamp |
| FFL | Flatfield LED |
| FlatSat | Not an acronym, but a laboratory bench spacecraft simulator (Flat Satellite) |
| FM | Filter Mechanism |
| FOV | Field-Of-View |
| FPGA | Field Programmable Gate Array |
| FSW | Flight Software |
| FWFM | Full Width at Fiftieth Maximum |
| FWHM | Full Width at Half Maximum |
| FU | Flight Unit |
| GBK | Germainium Black Kapton |
| GEVS | General Environmental Verification Specifications |
| GNAT | GNats: A Tracking System |
| GS | Ground Software |
| GSE | Ground Support Equipment |
| GSFC | Goddard Space Flight Center |
| GTO | Geosynchronous Transfer Orbit |
| HB | High-Speed Bus |
| HC | Hollow Cathode |
| HCL | Hollow Cathode Lamp |
| HK | Housekeeping |
| HOP | High Output Paraffin |
| HSB | High Speed Bus |
| HV | High Voltage |
| ICD | Interface Control Document |
| ICE | Interface Control Electronics |
| ICE | Instrument Control Electronics |
| IDL | Interactive Data Language |
| I/F | Interface |
| IM | Instrument Module |
| INC | Instrument Notification Command |
| IPER | Instrument Pre-Environmental Review |
| IPSR | Instrument Pre-Ship Review |
| IPT | Integrated Product Team |
| ISR | Interrupt Servicing Routine |
| I&T | Integration and Test |
| IV&V | Independent Verification and Validation |
| JY | Jobin-Yvon |
| KRAM | Kernel RAM |
| KSC | Kennedy Space Center |
| LASP | Laboratory for Atmospheric and Space Physics, CU |
| LDO | Low Drop-Out |
| LED | Light Emitting Diode |
| LOC | Lines of Code |
| LPT | Limited Performance Test |
| LSTB | LASP Space Technology Building |
| LVDS | Low Voltage Differential Signal |
| LVPC | Low Voltage Power Card |
| LVPS | Low Voltage Power Supply |
| LWS | Living With a Star |
| MAR | Mission Assurance Requirements |
| ME | Mechanical Engineering |
| MEGS | Multiple EUV Grating Spectrograph |
| MGSE | Mechanical Ground Support Equipment |
| MIL-STD | Military Standards |
| MIT LL | Massachusetts Institute of Technology, Lincoln Laboratory |
| MKS | Meter-Kilogram-Second |
| MLI | Multi-Layer Insulation |
| MOBI | Multi-Optical Beam Instrument |
| MOC | Mission Operations Center |
| MOI | Moments of Inertia |
| MOSFET | Metal–Oxide–Semiconductor Field-Effect Transistor |
| MRB | Material Review Board |
| MRD | Mission Requirements Document |
| MRF | Master Reference Frame |
| MS | Margin of Safety |
| MUA | Material Usage Agreement |
| NASA | National Aeronautics and Space Administration |
| NCR | Non-Conformance Report |
| NDT | Non-Destructive Testing |
| NIST | National Institute for Standards and Technology |
| NOAA | National Oceanic and Atmospheric Administration |
| NRL | Naval Research Laboratory |
| NVR | Non-Volatile Residue |
| OASIS | Operations and Science Instrument Support |
| OASIS-CC | OASIS – Command and Control |
| OASIS-PS | OASIS – Planning Subsystem |
| OGSE | Optical Ground Support Equipment |
| OIS | OASIS-CC Interface System |
| OP | Optics Package |
| OS | Operating System |
| OSC | Orbital Sciences Corporation |
| OSPCI | Operating System / Peripheral Component Interconnect |
| PAIP | Product Assurance and Implementation Plan |
| PBBL | Prom-Based Boot Loader |
| PCB | Perforated Circuit Board |
| PCI | Peripheral Component Interface |
| PDPR | Preliminary Design Peer Review |
| PDR | Preliminary Design Review |
| PER | Pre-Environmental Review |
| PFA | Perfluoroalkoxy (tubing) |
| PFR | Problem Failure Report |
| PI | Principal Investigator |
| PJAB | Pointing Jitter and Alignment Budget |
| PM | Propulsion Module |
| PM | Project Manager |
| POR | Power On Reset |
| PR | Problem Report |
| PROCPAR | Procurement Product Assurance Requirements Plan for Subcontractors |
| PRT | Platinum Resistance Thermometer |
| PS | Power Service |
| PSC | Power Services Card |
| PSD | Power Spectral Density |
| PSR | Pre-Ship Review |
| QA | Quality Assurance |
| QACs | Quality and Accounting Capsules |
| QE | Quantum Efficiency |
| QT | Quarter-second (ISR) Task |
| QT | Quantum Throughput |
| RA | Reliability Analysis/Assurance |
| RAID | Redundant Array of Independent Disks |
| RAM | Random Access Memory |
| RE | Radiated Emissions |
| RF | Radio Frequency |
| RFA | Request For Action |
| RGA | Residual Gas Analyzer |
| ROS | Reference Optical Surface |
| RS | Rapid Sample |
| RS | Radiated Susceptibility |
| RT | Round-Trip |
| RT | Real-Time |
| RTVM | Requirement Traceability and Verification Matrix |
| SAM | Solar Aspect Monitor |
| SAT | Software Acceptance Test |
| SAWS | Surface Acoustic Wave Sensor |
| SB | Spacecraft Bus |
| SC | Stored Command |
| S/C | Spacecraft |
| SCA | Spacecraft Assembly |
| SCFH | Standard Cubic Feet per Hour |
| SDN | Subsystem Data Node |
| SDN-CC | SDN Common Code |
| SDO | Solar Dynamics Observatory |
| SEE | Solar Euv Experiment (on TIMED) |
| SEM | Solar EUV Monitor (on SOHO) |
| SHK | Science Housekeeping |
| SLOC | Source Lines of Code |
| SOC | Science Operations Center |
| SOHO | Solar & Heliospheric Observatory |
| SORCE | Solar Radiation and Climate Experiment |
| SPOC | Science Processing and Operations Center |
| SRAM | Static RAM |
| SRD | System Requirements Document |
| SRR | System Requirements Review |
| SSIM | Spacecraft Simulator |
| SURF | Synchrotron Ultraviolet Radiation Facility |
| SW | Software |
| SwRI | Southwest Research Institute |
| TB | Thermal Balance |
| TB | Terabytes |
| TBD | To Be Determined |
| TC | Time Client |
| TC | Thermocouple |
| TCAD | Telemetry, Check, Analysis, Display |
| TCS | Thermal Control Subsystem |
| T&E | Test and Evaluation |
| TEMS | Thermal Environmental Monitoring System |
| TGA | ThermoGravimetric Analysis |
| TID | Total Integrated Dose |
| TID | Total Ionizing Dose |
| TIM | Technical Interchange Meeting |
| TIMED | Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics |
| TLM | Telemetry |
| TP | Telemetry Processor |
| TQCM | Thermal Quartz Crystal Microbalances |
| TQSM | Telemetry Quality Status and Monitoring |
| TRR | Test Readiness Review |
| TV | Thermal Vacuum |
| TVAC | Thermal Vacuum |
| UPS | Uninterrupted Power Supply |
| USC | University of Southern California |
| USU | Utah State University |
| UVF | UnVerified Failure |
| VCHS | Visibly Clean Highly Sensitive |
| WRT | With Respect To |
| WSMR | White Sands Missile Range |
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