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S 1) South or 2) Snow S 3 E Space-Based KEW System Simulator/Emulator. S&A Safe and Arm. S&T science and technology S&TI Scientific and Technical Intelligence. S&TNF Strategic and Theater Nuclear Forces. S/N (1) Signal-to-Noise Ratio (Also called SNR). (2) Serial Number. S/NF Secret/No Foreign Security Marking. S/O Survivability/Operability. S/SU/AC Systems/System Upgrade/Advanced Concept. S/V Survivability and Vulnerability. S/W Shortwave - a disturbance in the mid or upper part of the atmosphere which induces upward motion ahead of it. S2 Synchronized and Synergized. SA (1) Situation Awareness (2) Secretary of the Army. SA&I System Architecture and Integration. SA-N Surface-to-Air, Naval. SA/BM OBSOLETE. Systems Analysis/Battle Management. SA/PDL Strategic Defense Ada Process Description Language. SAAWC Sector Anti-Air Warfare Coordinator (USMC). SAAWF Sector Anti-Air Warfare Facility (USF term). SABRS Space and Atmospheric Burst Reporting System. SAC (1) OBSOLETE. Strategic Air Command (see USSTRATCOM). (2) Senate Appropriations Committee (US). SACCS SAC Control System. SACEUR Supreme Allied Command, Europe. SACLANT Supreme Allied Command, Atlantic. SACMA Suppliers of Advanced Composite Materials Association. SADA Standard Advanced Dewar Assembly. 254 SADBU Small and Disadvantaged Business Utilization (of OSD). SADM System Acquisition Decision Memorandum (Army). SADO Senior Operations Duty Officer (JFACC term). SAE Service Acquisition Executive. SAFEGUARD A U.S. midcourse and terminal phase defense for ICBMs, deployed in 1975 and deactivated in 1976 due to its limited cost effectiveness. SAFSCOM OBSOLETE. SAFEGUARD System Command. SAG Senior Advisory Group. SAGE Semi-Automatic Ground Environment {Air Defense System}. SAH Semi-active homing. SAIC Scientific Applications International Corporation. SAINT (1) Satellite Interceptor. (2) Shared Adaptive Internet Technology. SAIP Semi-Automated Imagery Processing. SAKT System Architecture and Key Tradeoffs (SDIO term). SAL Strategic Arms Limitation. SALT Strategic Arms Limitation Talks. Salvage Fusing The means by which a warhead detonates when an interceptor structurally attacks it. Generally used as a device for disruption of the defense. SAM Surface-to-Air Missile. SAM-D Surface to-Air Missile, Model D (now PATRIOT). SAMD Security Assistance Management Division. SAMM Software Acquisition Maturity Matrix. SAMMES Space Active Modular Materials Experiment. SAMOPA Single Accelerator Master Oscillator-Power Amplifier. SAMOS Satellite and Missile Observation System. SAMP (1) Single Acquisition Management Plan. (2) Security Accreditation Management Plan. SAMP/T Sol-Air Moyenne Portee /Terre (Surface-Air Medium Portable/Terrestrial French- Italian missile). 255 SAMS Spacecraft Assembly, Maintenance and Servicing Study. SAMTEC OBSOLETE. Space and Missile Systems Test Center, Vandenberg AFB, CA. SAMTO OBSOLETE. Space and Missile Test Organization, Vandenberg AFB, CA. SAO Security Assistance Organization. SAP Fluid content of the xylem and phloem cells of plants. Fluid content of the vacuole generally referred to as cell sap. SAR (1) Synthetic Aperture Radar. (2) Selected Acquisition Report. (3) Special Access Required. (4) Search and Rescue. SARDA [Assistant] Secretary of the Army for Research, Development and Acquisition. SAS (1) Shoot-Assess-Shoot. (2) System Architecture Study (SDI). SASC Senate Arms Service Committee. (US). SASET Software Architecture Sizing and Estimating Tool. SASS Space Assets Support System. SAT 1. Satellite (imagery) 2. Saturday SATAN Security Administrators Tool for Analyzing Networks. SATCOM Satellite Communications. Satellite and Missile Surveillance The systematic observation of aerospace for the purpose of detecting, tracking, and characterizing objects, events, and phenomena associated with… Satellite Reconnaissance Intelligence gathered through collection systems involved in assessing the capabilities, methods of operation, signal intercept, photo reconnaissance, and… SATKA Surveillance, Acquisition, Tracking, and Kill Assessment. SATP Space Applications Technology Program. SATRAK Satellite Tracking. SATURN Name of NASA rocket booster. SATVUL Satellite Vulnerability. SAW (1) Surface Acoustic Wave. (2) Satellite Attack Warning. SAW/V Satellite Attack Warning and Verification. SAWAFE Satellite Attack Warning and Assessment Flight Experiment. SBA (1) Space-Based Assets. (2) Small Business Administration. 256 SBAMS Space-Based Anti-Missile System. SBAS (1) Space-Based Architecture Study. (2) Space-Based Acquisition System. SBCL Space-Based Chemical Laser. SBD Site BMC3 Demonstration. SBE (1) Space Based Element. (2) Synthetic Battlefield Environment. SBES Space-Based Experimental System. SBEV Space-Based Experimental Version. SBFEL Space-Based Free Electron Laser. SBHE Space-Based Hypervelocity Gun Experiment. SBHRG Space-Based Hypervelocity Rail Gun. SBI (1) Space-Based Interceptor. (Replaced by Brilliant Pebbles (BP).) (2) Special Background Investigation. SBI-CV OBSOLETE. Space-Based Interceptor - Carrier Vehicle. SBIR (1) Space-Based Infrared. (2) Small Business Innovative Research. SBIRS Space Based Infrared System. SBIRS GEO SBIRS Geosynchronous Earth Orbit satellites. SBIRS HEO SBIRS Infrared sensors hosted on satellites in Highly Elliptical Orbits. SBIRS High SBIRS high altitude component consisting of four SBIRS GEO satellites and infrared sensors on two HEO satellites. SBIRS LEO SBIRS Low Earth Orbit Satellites. SBIRS Low SBIRS low altitude component consisting of SBIRS LEO satellites. The SBIRS Low component will be designed to provide precision midcourse tracking and… SBIS (1) Space-Based Imaging Satellite. (2) Space-Based Interceptor System. SBKEW Space-Based Kinetic Energy Weapon. SBKKV OBSOLETE. Space-Based Kinetic Kill Vehicle. SBKV Space-Based Kill Vehicle.