| AEHF | Advanced Extremely High Frequency |
| AFRL | Air Force Research Laboratory |
| AI | artificial intelligence |
| AIAA | American Institute of Aeronautics and Astronautics |
| ASF | Alaska Satellite Facility |
| CAIP | Capability and Affordability Improvement Program |
| CDS | CubeSat Design Specification |
| CHIRP | Commercially Hosted Infrared Payload |
| CSDA | Commercial SmallSat Data Acquisition |
| CWDP | Commercial Weather Data Pilot |
| CYGNSS | Cyclone Global Navigation Satellite System |
| DAU | Defense Acquisition University |
| DoD | Department of Defense |
| EASE | Evolutionary Acquisition for Space Efficiency |
| ECMWF | European Centre for Medium-Range Weather Forecasting |
| EMC | electromagnetic compatibility |
| EMI | electromagnetic interference |
| ENSO | El Niño-Southern Oscillation |
| ESA | European Space Agency |
| ESP-MACCS | Earth System Processes Monitored in the Atmosphere by a Constellation of CubeSats |
| ESTO | Earth Science Technology Office |
| EVM-3 | Earth Venture Mission |
| FAR | Federal Acquisition Regulations |
| FFRDC | Federally Funded Research and Development Center |
| GAO | Government Accountability Office |
| GEO | geosynchronous Earth orbit |
| GNSS-R | Global Navigation Satellite System Reflectometry |
| GNSS-RO | Global Navigation Satellite System Radio Occultation |
| GOES | Geostationary Operational Environmental Satellite |
| GPM | Global Precipitation Measurement |
| GPS | global positioning system |
| GRACE | Gravity Recovery and Climate Experiment |
| HARP | Hyper-Angular Rainbow Polarimeter |
| HOPS | Hosted Payloads Solutions |
| HSA | Hybrid Space Architecture |
| HydroGNSS | Hydrological Global Navigation Satellite System |
| IDIQ | Indefinite Delivery, Indefinite Quantity (contract) |
| IEEE | Institute of Electrical and Electronics Engineers |
| INCUS | Investigation of Convective Updrafts |
| IoT | Internet of Things |
| IP | intellectual property |
| IPO | initial public offering |
| ISR | intelligence, surveillance, and reconnaissance |
| ISS | International Space Station |
| JAXA | Japan Aerospace Exploration Agency |
| LEO | low Earth orbit |
| ML | machine learning |
| MODIS | Moderate Resolution Imaging Spectroradiometer |
| NASA | National Aeronautics and Space Administration |
| NEN | Near Earth Network |
| NOAA | National Oceanic and Atmospheric Administration |
| NOPP | National Oceanographic Partnership Program |
| NRE | nonrecurring engineering |
| NRO | National Reconnaissance Office |
| NSF | National Science Foundation |
| NWP | Numerical Weather Prediction |
| ONR | Office of Naval Research |
| OSC | Orbital Sciences Corporation |
| OTA | Other Transactions Authority |
| PMM | Precipitation Measurement Mission |
| PNT | positioning, navigation, and timing |
| PPOD | Poly Picosat Orbital Deployer |
| PPP | public–private partnership |
| RAVEN | Radiometer Assessment Using Vertically Aligned Nanotubes |
| R&D | research and development |
| REACH | Responsive Environmental Assessment Commercially Hosted |
| RGS | Remote Ground Station |
| RO | radio occultation |
| RSDO | Rapid Spacecraft Development Office |
| S&T | science and technology |
| S3VI | Small Spacecraft Systems Virtual Institute |
| SAE | Society of Automotive Engineers |
| SAR | Synthetic Aperture Radar |
| SBIR | Small Business Innovative Research |
| SMAP | Soil Moisture Active Passive |
| SMD | Science Mission Directorate |
| SMOS | Soil Moisture and Ocean Salinity |
| SPAC | Special-Purpose Acquisition Company |
| SPEC | Space Enterprise Consortium |
| SPRSA | Small Payload Rideshare Association |
| SSC | Space Systems Command |
| SSCA | Small Spacecraft Coordination Activity |
| SSCG | Small Spacecraft Coordination Group |
| SSTP | Small Spacecraft Technology Program |
| STTR | Small Business Technology Transfer |
| SWOT | Surface Water and Ocean Topography |
| TANGO | Twin Anthropogenic Greenhouse Gas Observers |
| TEMPEST-D | Temporal Experiment for Storms and Tropical Systems Demonstration |
| TEMPO | Tropospheric Emissions: Monitoring of Pollution (sensor) |
| TOMS | Total Ozone Mapping Spectrometer (satellite) |
| TRMM | Tropical Rainfall Measuring Mission |
| UAV | unmanned aerial vehicle |
| USAF | U.S. Air Force |
| USGS | U.S. Geological Survey |
| USSF | U.S. Space Force |
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