Astronomy Acronyms Page 13

	Acronym	Meaning
	PTC	Passive Thermal Control
	PV	Photovoltaic
	PVO	Pioneer Venus Orbiter / Protivo-Vosdushniya Oborona
	QSO	Quasi-Stellar Object
	RA	Right Ascension
	RAE	Royal Aerospace Establishment
	RAL	Rutherford-Appleton Laboratory
	RAS	Royal Astronomical Society
	RASC	Royal Astronomical Society Of Canada
	RCC	Reinforced Carbon-Carbon
	RCI	Rodent Cage Interface
	RCS	Reaction Control System / Revision Control System
	RCT	Radiometric Calibration Target
	REM	Rat Enclosure Module
	RESTEC	Remote Sensing Technology Center
	RF	Radio Frequency
	RFI	Radio Frequency Interference
	RFM	Reconfigurable Furnace Module
	RFNA	Red Fuming Nitric Acid
	RG	Red Giant
	RGB	Red Giant Branch
	RHC	Rotational Hand Controller
	RIACS	Research Institute For Advanced Computer Science
	RKA	Rossiskoye Kosmicheskoye Agentsvo
	RMCD	Radaiation Monitoring Container Device
	RME	Radiation Monitoring Experiment
	RMS	Remote Manipulator System
	RNGC	Revised New General Catalog
	ROSAT	ROentgen Satellite
	ROUS	Rodents Of Unusual Size
	RPM	Retro Propulsion Module
	RSN	Radio SuperNova
	RTG	Radioisotope Thermoelectric Generator
	RTLS	Return To Launch Site
	RVSN	Raketniye Voiska Stratigcheskovo Naznacheniya
	S	Spiral (for Galaxies)
	S/C	SpaceCraft
	SAA	South Atlantic Anomaly / Single Access Antenna
	SAGA	Solar Array Gain Augmentation
	SAIL	Shuttle Avionics Integration Laboratory
	SAM	Shuttle Activation Monitor
	SAMPEX	Solar Anomalous And Magnetospheric Particle EXplorer
	SAMS	Space Acceleration Measurement System
	SAO	Smithsonian Astrophysical Observatory
	SAR	Search And Rescue / Synthetic Aperture Radar
	SARA	Satellite Pour Astronomie Radio Amateur
	SAREX	Search And Rescue Exercise / Shuttle Amateur Radio Experiment
	SAS	Space Activity Suit / Space Adaptation Syndrome
	SAT	Synthetic Aperture Telescope
	SB	Spiral

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