Spacecraft Abbreviations and Acronyms
- RTERoute
- RTLTRound-Trip Light Time
- RTSReal Time Station
- RVRRunway Visual Range
- RVSMReduced Vertical Separation Minimum
- RXReceiver
- RYKRelay
- SCARLETSolar Concentrator Arrays With Refractive Linear Element Technology
- SDSecure Digital
- SDFSimplified Directional Facility
- SDSTSmall, Deep-Space Transponder
- SDSTSmall Deep Space Transponder
- SEESpace Environments and Effects
- SELCALSelective Calling System
- SIDStandard Instrument Departure
- SIDCStardust Interstellar Dust Collector
- SMSShort Messaging Service
- SNSatellite Navigation
- SNIRSignal-To-Noise Ratio
- SNRSignal-To-Noise Ratio
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