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(Click for frequent words.) 79 GPS 2R 76 GPS IIR M 74 designated GPS IIR 72 GPS IIF 71 modernized IIR 70 GPS Block IIR 68 ILS Proton Breeze 68 JCSAT 9 68 Minotaur IV 68 Wideband Global 67 Block IIR 67 GPS Block IIF 66 Block IIF 66 A# spacecraft 66 HEO payload 66 STP S# 66 BSAT 3a 66 Atlas IIAS 66 ASTRA 1L 66 System Block IIR 66 GOES O 66 Orbital Express 65 AEHF satellite 65 NROL 65 GPS IIIA 65 ASTRA 1KR 65 SBIRS GEO 65 Atlas 2AS 65 GPS IIR satellites 65 SBIRS HEO 65 Metop 64 WGS satellite 64 PSLV C# 64 designated Block IIR 64 LMCSS 64 Skynet 5C 64 Eurostar E# 64 Thales Alenia 64 NAVSTAR Global Positioning System 64 Pegasus XL 64 MetOp 64 Skynet 5B 63 INSAT 3E 63 Arabsat 5A 63 MEASAT 3a 63 SATCOM Satellite 63 WGS Block 63 3rd SOPS 63 Rockot 63 PSLV C6 63 Satellite Successfully Launched 63 geosynchronous GEO 63 GOES N 63 Nimiq 5 63 Astrium Satellites 63 GIOVE B 62 TDRS K 62 PSLV C7 62 VINASAT 1 62 JCSAT 62 STSS Demonstration 62 Launch Vehicle 62 modernized Global Positioning 62 BSAT 3b 62 Block 5D 62 GPS IIF satellites 62 Vandenberg AFB Calif. 61 GSAT 5P 61 Minotaur rocket 61 SBSS satellite 61 INSAT 4CR 61 EchoStar XIV 61 H IIB 61 ATV Jules Verne 61 COSMO SkyMed 61 Helios 2B 61 Launch Vehicle EELV 61 Insat 4A 61 ILS Proton launch 61 Express AM# 61 W2A satellite 61 Anik F3 61 SBSS Block 61 AEHF 61 polar orbiting 61 UCAS D 61 ULA Atlas 61 geosynchronous satellite 60 Turksat 4A 60 Skynet 5A 60 Insat 4CR 60 aboard SpaceX Falcon 60 X #A WaveRider 60 geosynchronous transfer orbit 60 Jules Verne ATV 60 JASSM ER 60 Unmanned Combat Air 60 Full Operational Capability 60 Tactical Tomahawk 60 INSAT 3A 60 Giove B 60 Proton Breeze M 60 H IIA 60 Chinasat 6B 60 geosynchronous orbit GEO 60 GLONASS M 60 Ariane launcher 60 CHIPSat 60 SPACEWAY TM 60 EchoStar XV 60 Telesat Nimiq 60 KA SAT satellite 60 Optus D3 60 Atlantis STS 60 Eutelsat W2A satellite 60 AIM 9X 60 ASTRA 1M 59 propulsion subsystem 59 Nimiq 59 MP RTIP 59 Orbital Taurus 59 suborbital trajectory 59 Air Force Evolved Expendable 59 JHMCS 59 Intercontinental Ballistic Missile 59 Anik F1R 59 GPS IIF satellite 59 Telstar #R 59 FalconSat 59 orbit GEO 59 Joint Standoff Weapon 59 Polar Operational 59 L5 signal 59 Insat 4B 59 Bulava submarine launched 59 MetOp satellite 59 SDD phase 59 Unmanned Aircraft System 59 System MUOS 59 SLC 3E 59 Optus D2 59 T #TS 59 Glonass satellites 59 STP SIV 59 Based Infrared 59 Joint STARS 59 Geo synchronous 59 narrowband tactical 59 C 5Ms 59 PSLV C 59 Globalstar satellites 59 Taurus XL 58 unmanned Progress 58 TOFTs 58 System SBIRS 58 Longbow Apache 58 ASTRA 3B 58 Crew Launch Vehicle 58 DSCS III 58 Advanced EHF 58 Cosmo SkyMed 58 Alphasat 58 Insat 58 Astra 1M 58 VTUAV 58 MALD J 58 Soyuz FG 58 unmanned spaceplane 58 WGS satellites 58 SBIRS 58 Turksat 3A 58 STSS Demo 58 SATCOM WGS 58 Launched Successfully 58 Wideband Gapfiller Satellite 58 AARGM 58 Fregat upper stage 58 NASA Ares IX 58 SAR Lupe 58 George Zamka 58 DIRECTV 9S 58 geosynchronous 58 AEHF satellites 58 Mobile User Objective 58 Milstar 58 Zenit 3SL 58 Baikonur Cosmodrome Kazakhstan 58 Carl Marchetto 58 SpaceX Falcon 58 ILS Proton 58 DMSP F 58 Telstar #N 58 satellite Giove 58 HyFly 57 Vehicle ATV 57 TanDEM X 57 Apstar 57 entire Milstar constellation 57 Pad Abort 1 57 Kosmos 3M 57 PSLV C9 57 Satellites GOES 57 W2A 57 LITENING 57 Interior Laboratory GRAIL 57 Orion LAS 57 SpaceX Falcon 9 57 Small Diameter Bomb 57 Globalstar constellation 57 ASTRA 1N 57 geo synchronous transfer 57 BQM #E 57 Modernized GPS Satellite 57 NASA Wallops 57 SpaceLoft XL 57 TecSAR 57 Yuri Lonchakov 57 ASTRA 5B 57 COMSATBw 57 Technology Insertion 57 STOVL aircraft 57 Ariane 5G 57 G ATOR 57 Highly Adaptable Satellite 57 Rasad 57 geosynchronous communications 57 E 8C 57 Molniya 57 Dnepr rocket 57 Aegis BMD Weapon 57 Koreasat 6 57 #th FLTS 57 Fighter Squadrons 57 DigitalGlobe WorldView 57 Orbital Boost 57 Submarine Launched 57 INSAT 2E 57 Vinasat 57 geo stationary orbit 57 System ATACMS 57 High Frequency AEHF 57 Spirit stealth bomber 57 PSLV rocket 57 Vehicle OBV 57 Nanosat 57 Block IIA 57 Eutelsat W2A 57 Anik G1 57 RQ 7B Shadow 57 Intermediate Range Ballistic 57 Guided Multiple 57 Resourcesat 2 57 Evolved SeaSparrow Missile 57 Advanced Hawkeye 57 Paveway II 57 Dyna Soar 57 INSAT 3D 57 Arabsat 4A 57 NOAA GOES 57 MUOS satellite 57 TDRSS 56 Joint Unmanned Combat 56 EKV 56 2 Block IIIA 56 AN/TPS-# 56 communication satellite GSAT 56 KSLV 1 56 P 8A MMA 56 Nimiq 4 56 inertial measurement unit 56 Yahsat Y1A 56 Reusable Launch Vehicle 56 Solid Rocket Boosters 56 AEHF spacecraft 56 Space Fence 56 DMSP F# 56 Proba 2 56 Orbital Pegasus 56 Eutelsat KA SAT 56 WATCHKEEPER 56 MQ 8B 56 X #B UCAS 56 Satellite Launch Vehicle GSLV 56 HEO payloads 56 Geo IK 56 DIRECTV 7S 56 OG2 satellites 56 EA 6B 56 INSAT 4C 56 D5 missile 56 Milstar constellation 56 GSLV D2 56 Arianespace Ariane 5 56 satellite GSAT 56 Geo Synchronous Satellite Launch 56 NFIRE 56 MidSTAR 56 Cargo Launch Vehicle 56 NCADE 56 Koreasat 56 Alphabus 56 INSAT 4A 56 Exploration Vehicle 56 AFSPC 56 AESA radar 56 VINASAT 56 Reliability Enhancement 56 GLAST spacecraft 56 Aircrew Training System 56 Scaled Composites SpaceShipOne 56 Transformational Satellite Communications 56 NASA Stratospheric Observatory 56 MILSATCOM 56 manned Soyuz 56 Pilot George Zamka 56 Discovery STS 56 SCISAT 56 Arianespace 56 PSLV C8 56 HAMSAT 56 Anik F2 56 STSS satellites 56 Presidential Helicopter 56 AH #D 56 Plesetsk Cosmodrome 56 Galileo satellites 56 Starsem 56 Eurockot 56 geostationary 56 THAAD interceptors 56 Alliance Successfully Launches 56 EuroHawk 56 II D5 56 Glonass M 56 antenna reflector 56 Launch Abort System 56 GSLV rockets 56 Air Missile AMRAAM 56 Cartosat 2B 56 AIM #D 56 Tomahawk Block 56 weather satellite TIROS 56 NAVSTAR GPS 56 Astra 3B 56 SUAV 56 BAMS UAS 55 GOES R 55 Geostationary Operational Environmental 55 Shadow Tactical Unmanned 55 geo stationary 55 Space Shuttle STS 55 ProtoStar II 55 Ofeq 55 Program MP RTIP 55 Short Range Ballistic 55 Evolved Expendable Launch Vehicle 55 XTAR EUR 55 ISS Reshetnev 55 EO IR sensor 55 Chang'eI 55 STPSat 55 Orion CEV 55 LRIP 55 Cygnus spacecraft 55 II D5 Fleet 55 STUAS Tier II 55 hypersonic scramjet 55 E'Prime 55 Inertial Navigation System 55 Satellite GOSAT 55 Tactical Reconnaissance 55 GSLV rocket 55 HOT BIRD 55 1st SOPS 55 decommissioned Peacekeeper 55 CROWS II 55 ARABSAT 55 geostationary earth 55 AMERICOM 55 Cosmodrome 55 Avionics Modernization 55 Pirs docking compartment 55 Spaceway F1 55 STOVL mode 55 Kazakhstan Baikonur Cosmodrome 55 Navstar GPS 55 telemetry tracking 55 NigeriaSat 55 ESMD 55 Iridium NEXT 55 Program DMSP 55 TacSat 55 Foton spacecraft 55 Orion Crew 55 MQ 9s 55 Initial Production LRIP 55 Predator MQ 55 Redstone Arsenal Ala. 55 Advanced Extremely 55 Stratofortress bombers 55 KURS 55 SATCOM WGS satellite 55 Re engining 55 Satellite GOES 55 AIRSS 55 MEASAT 55 ARCTUS 55 SATCOM II 55 JSTARS 55 ROKAF 55 ESA ERS 55 3DELRR 55 HC #J 55 MH #R helicopter 55 somersaulting maneuver 55 CARTOSAT 2A 55 Northrop Grumman RQ 55 SICRAL 1B 55 Milstar satellites 55 RQ 4B 55 BepiColombo 55 APKWS II 55 geosynchronous satellite launch 55 GPS IIIA satellite 55 UH #As 55 stealth supercruise 55 CH #K helicopter 55 RAM Guided Missile 55 spacecraft 55 APKWS 55 Navy Unmanned Combat 55 GSTB V2 55 geo synchronous orbit 55 space module Tiangong 55 Predator UAS 55 Polar Satellite Launch 55 GPS IIIA satellites 55 Radar Modernization 55 CH #K Heavy 55 MQ 8B Fire 55 RQ 4A Global 55 Launch Rocket 55 Spacebus 54 ATACMS 54 LEOP 54 SES AMERICOM AMC 54 geo synchronous 54 TDRS 54 Shadow TUAV 54 Briz M booster 54 Block IIR M 54 Rokot 54 reusable hypersonic 54 Orbital Sciences Taurus 54 Small Diameter Bomb SDB 54 Predator UAV 54 Commander Charlie Hobaugh 54 veteran spaceflyer 54 M-TADS/PNVS 54 Whiteman AFB Mo. 54 indigenous cryogenic stage 54 Advanced EHF satellite 54 optionally piloted 54 INSAT 4B 54 Infrared Astronomy SOFIA 54 probe Chang'e 54 U 2S 54 Eurostar E# platform 54 Radar G ATOR 54 Breeze KM 54 CBERS 2B 54 Ted Gavrilis 54 Vehicle GSLV 54 Solutions NETCENTS contract 54 CARTOSAT 54 airborne observatory 54 CH #K 54 diazepam pharmacy 54 Shuttle Endeavor 54 RERP 54 geo synchronous satellite 54 ScanEagle unmanned aircraft 54 EA #G aircraft 54 shuttle Endeavour STS 54 9 Reaper unmanned 54 THAAD radar 54 Operational Evaluation 54 Airborne Laser 54 Airborne Laser ABL 54 BRAHMOS 54 Tactical Aircraft 54 Boeing #-# freighter 54 Helmet Mounted Display 54 Simonetta Di Pippo ESA 54 JCTD 54 MUOS 54 shuttle Discovery STS 54 MC #J 54 Baikonur spaceport 54 STUAS 54 JSTARS aircraft 54 Kirtland AFB NM 54 1B bomber 54 Glonass navigation satellites 54 THAAD Weapon System 54 NLOS C 54 unmanned rotorcraft 54 Minot AFB ND 54 BMC2 54 Sinosat 54 exoatmospheric kill vehicle 54 Baikonour 54 Ariane rocket 54 Orbital Taurus II 54 Ron Grabe Orbital 54 Manned Spacecraft Center 54 WESCAM 54 Booster Separation 54 Anti Submarine Warfare ASW 54 Space Launch Vehicle 54 engineer Nicole Stott 54 ECA launcher 54 LRASM 54 Swales Aerospace 54 RACR 54 TIROS 54 Systems J UCAS 54 NASA GeneSat 1 54 GLONASS satellites 54 System GMLRS 54 AESA Radar 54 Geosynchronous orbit 54 Soyuz launcher 54 Plesetsk 54 DAGR 54 DSCS 54 Titan IVB 54 Atlas Centaur 54 Insat 3A 54 Intelsat IS 54 RQ 4B Global 54 EADS SPACE 54 ICO G1 satellite 54 geostationary transfer 54 Pam Melroy 54 SkySat 54 AESA 54 GB GRAM 54 Dragon spacecraft 54 AN/ALE-# 54 Earth Observation Satellite 54 TECSAR 54 ILS Proton Successfully Launches 54 Medium Altitude 54 UH 1N 54 Foton M2 54 Suite VIIRS 54 Rockot launcher 54 Yaogan 54 Yahsat 1A 54 Hubble gyroscopes 54 AIM 9X Sidewinder 54 Avionics Modernization Program 54 STATION Fla. 54 ST5 53 NetFires 53 Minuteman IIIs 53 Recovery Experiment SRE 53 RSRMs 53 KA SAT 53 NASDAQ ASTC 53 Geosynchronous Transfer Orbit 53 X #A Waverider 53 THAAD interceptor 53 Cartosat 2A 53 GSLV D3 rocket 53 Boeing #HP 53 Dmitri Kondratyev 53 Next Generation Jammer 53 GPS IIIB 53 Galileo constellation 53 spacelift 53 WhiteKnightTwo carrier 53 STANDARD Missile 53 CCAFS 53 multirole aircraft 53 SpaceX Dragon 53 SDACS 53 OrbView 3 53 AFI KLM E 53 Y1A 53 VAFB 53 Elmendorf AFB Alaska 53 polar orbiting satellites 53 EGBU 53 PSLV 53 ISS Expedition 53 RISAT 53 Hispasat 1E 53 missile cruiser Moskva 53 Samokutyayev 53 Landing Tactical Unmanned 53 Jules Verne Automated Transfer 53 Technology Demonstration JCTD 53 Tactical Engagement 53 C2BMC 53 C #E Hercules 53 OH #D 53 JPSS 53 orbital rendezvous 53 BRITE Star 53 Dominic Gorie 53 KC #J 53 GAGAN 53 nanosatellite 53 DubaiSat 53 Meteosat 53 Sikorsky HH #G 53 Geostationary 53 Minotaur IV rocket 53 GSLV F# carrying 53 Barksdale AFB La. 53 GPS constellation 53 Geosynchronous 53 Measat 3a 53 unpiloted 53 GSLV D3 53 System MEADS 53 laser designator 53 C #J JCA 53 Zenit 3SLB 53 Sniper XR 53 HDAM 53 Endeavour STS 53 C 5M 53 Satellite Launch Vehicle 53 Launch Scrubbed 53 Glonass K 53 Raytheon Delivers 53 GIOVE 53 propellant loading 53 tiltrotor aircraft 53 System Demonstration UCAS 53 ESA Proba 53 ATV Johannes Kepler 53 AH 1Z 53 Stratospheric Observatory 53 Exploration Vehicle CEV 53 Synthetic Aperture Radar 53 Shadow TUAS 53 Eutelsat Communications SA 53 STOVL F 53 NASAs 53 AN/FPS-# 53 uncrewed 53 Delfi C3 53 Kourou French Guyana 53 CxP 53 Raytheon IDS 53 Systems UAS 53 Jean Yves Le Gall 53 #nd Fighter Squadron [002] 53 Minotaur IV launch 53 SpaceLoft 53 E/A-#G aircraft 53 SeaSpace 53 Active Electronically Scanned Array 53 Continuity Mission LDCM 53 J 2X engine 53 aboard Vostok 53 Tactical Fighter Wing 53 SATLYNX 53 AJ# engine 53 remote sensing satellite Resourcesat 53 intratheater airlift 53 Raytheon GBU 53 KazSat 53 Orion spacecraft 53 RL# engine 53 JLENS 53 Anti Surface Warfare 53 Commander Pam Melroy 53 Kosmos 3M rocket 53 TDRS satellites 53 NAVSTAR 53 GSLV Mk III 53 ARES IX 53 RESOURCESAT 53 HC #A 53 ARISSat 53 NPOESS Preparatory Project 53 SELEX GALILEO 53 geosynchronous transfer 53 GA ASI 53 E/A-#G 53 Léopold Eyharts 53 CAMCOPTER ® S 53 GLONASS constellation 53 A#T 53 precision guided munition 53 Rokot booster rocket 53 Insat 4C 53 Undocking 53 Atlas intercontinental ballistic 53 Geosynchronous Satellite Launch Vehicle 53 Qatar Emiri Air Force 53 MQ 1B Predator 53 Kill Weapon 53 Oleg Ivanovsky 53 Ground Based Midcourse 53 Jeff Bantle 53 RQ 4N 53 Polar orbiting Operational 53 inertial guidance 53 UH 1Y 53 NPO Lavochkin 53 ARH #A 53 MUOS satellites 53 Soyuz Fregat 53 unmanned Shenzhou 53 Ariane 5 53 Operationally Responsive Space 53 Schriever AFB Colo. 53 AirLaunch 53 System TSAT 53 Astrium Eurostar 53 Greenhouse Gases Observing 53 RSRM 53 SMOS Soil Moisture 53 LANTIRN 53 Multirole 53 RD AMROSS 53 geosynchronous satellites 53 Lunar CRater Observation 53 Soyuz TMA spacecraft 53 Merlin 1C 53 HISPASAT 52 ESA Automated Transfer 52 Eurobird 52 AMRAAM 52 GEO satellites 52 Plesetsk cosmodrome 52 strategic airlifters 52 Su #MKI aircraft 52 NFIRE satellite 52 Servicing Mission 52 J UCAS 52 Communications System DSCS 52 PW#A 52 Mike Cerneck 52 USS Spruance 52 DHS EAGLE 52 Iridium NEXT satellites 52 Molnia M 52 Satellite Launch 52 SSMEs 52 ASTRA 5A 52 Navy Multiband Terminal 52 MR TCDL 52 pound GBU 52 GMLRS 52 ULA Delta 52 Sun synchronous orbit 52 AIM #C# 52 Omid Hope 52 GSLV F# 52 Sineva 52 Fire Scout VTUAV 52 CX OLEV 52 CrIS 52 Technology Demonstrator 52 MC #E 52 STOVL variant 52 Max Launch Abort 52 ion propulsion 52 Oceansat 52 MSV MSAT 52 expendable Atlas 52 ISRO Chandrayaan 52 Malmstrom AFB Mont 52 OPEVAL 52 Ku Band 52 TACAN 52 CH #F 52 SES Americom AMC 52 SSM# 52 VIIRS 52 aboard Soyuz TMA 52 nEUROn 52 NASA Ikhana 52 JAGM 52 starboard truss segment 52 NASA Landsat 52 A#AX platform 52 F/A-#C/D 52 Vehicle PSLV C9 52 EELV 52 Automated Transfer Vehicle 52 W7 satellite 52 Vehicle PSLV 52 9FB 52 orbital maneuvers 52 JTRS approved 52 Navy F/A-#E/F 52 B 1B Lancer 52 AMF JTRS 52 Lunar Reconnaissance Orbiter LRO 52 Proba 52 coastal Naro 52 Block IIIA 52 Contractor Logistics 52 Tactical Missile 52 radar altimeter 52 guided GBU 52 Selective Availability Anti Spoofing 52 P 8As 52 BQM 52 POES satellites 52 Increment 52 Electro Optical Targeting 52 Combat Sustainment Wing 52 Orbital Minotaur 52 meteorological satellites 52 Raytheon APG 52 UH #M Upgrade 52 Wallops Island Va. 52 geo stationary satellite 52 Borei class 52 ROCSAT 2 52 Extended Range ER 52 NLOS LS 52 HYLAS 52 Volna rocket 52 SMOS 52 W#RGZ 52 JSOW C 52 Alpha Magnetic Spectrometer AMS 52 INSAT 52 Capt. Uriah Orland 52 nexgen 52 BADR 52 ICO G1 52 DC1 Docking Compartment 52 Optus C1 52 UK DMC2 52 manned Shenzhou 52 hypersonic glider 52 Ocean Salinity SMOS 52 based Midcourse Defense 52 Anik F2 satellite 52 Unmanned Aerial System 52 Apollo lunar lander 52 Kwajalein Island 52 heaviest payloads 52 Airborne Early Warning 52 Robins AFB Ga. 52 CALIPSO 52 kinetic warhead 52 Watchkeeper 52 ATIRCM 52 W2M 52 ballistic missiles SLBMs 52 Intelsat Galaxy 52 Dnepr rocket carrying 52 deorbit burn 52 Ariane launchers 52 UH #M 52 UCAV 52 Meteosat satellites 52 thrust vector 52 deorbiting 52 Pete Siebold 52 Control AEW 52 Joint Helmet Mounted 52 Spaceway 52 KSLV 52 Defense THAAD 52 LEMV 52 SolarEagle 52 P 8A 52 director Chuck Dovale 52 Aerial Refueling Boom 52 Bulava missiles 52 EPOCH IPS 52 ISRO Polar 52 Yahsat 52 JPALS 52 Titan 4B 52 Atlas V 52 J 2X 52 RAIDRS 52 AN/TPY-2 52 MQ 1B 52 Astra 1L 52 commander Zhai Zhigang 52 AN/APG-# 52 B#NG 52 Falcon 1e 52 Stargazer L 52 Soyuz launchers 52 Milstar satellite 52 Common Sensor Payload 52 Laser COIL 52 JASSM 52 Rockot launch 52 DMSP satellites 52 NASA Gravity Probe 52 Missile Segment 52 Aerospace DAILY 52 Ocean Salinity 52 AeroAstro 52 P Churyumov Gerasimenko 52 Operational Readiness Inspection 52 LOCKHEED MARTIN 52 GPS OCX 52 Tanegashima Space Center 52 TOW missile 52 satellite constellation 52 National Polar Orbiting 52 JEFX 52 Milstar II 52 MRTT 52 TUAV 52 KC #A [001] 51 Briz M upper 51 FORMOSAT 51 Air Force TacSat 51 ramjet propulsion 51 Electronically Scanned Array 51 AFOTEC 51 manned spaceships 51 F/A-#E/F 51 XTAR EUR satellite 51 Palapa D 51 W3A 51 DVCS# 51 northern Plesetsk launchpad 51 C #J aircraft 51 Satish Dhawan 51 PSLV C# rocket 51 Phalanx Close 51 Vertical Launching System 51 LRO LCROSS 51 Harrier squadrons 51 PAK FA 51 Unmanned Air 51 WhiteKnight 51 #A Stealth 51 engineer Garrett Reisman 51 Orbital Sciences 51 Dryden Aircraft 51 Talgat Musabayev 51 LAIRCM 51 Litening 51 lunar spacecraft Chandrayaan 51 Borey class 51 Precision Engagement 51 Kosmotras 51 Electro Optical Systems 51 Watchkeeper UAV 51 MTSAT 51 SSPTS 51 Advanced Tactical 51 Oceansat 2 51 EP 3E 51 Su #SM 51 KOMPSAT 51 PEO IWS 51 MRH# 51 commander Pam Melroy 51 Sikorsky CH #K 51 Turksat 51 JSOW 51 unarmed Minuteman 51 Solar Arrays 51 BETSS C 51 midcourse phase 51 ISRO 51 nanosatellites 51 Indigenously developed 51 Airborne Laser Testbed 51 MPCV 51 Orbital Sciences Corporation 51 astronaut Rick Sturckow 51 #ER Freighter 51 Russian crewmate Yuri 51 SSJ# 51 safing 51 NuSTAR 51 Pilotless 51 KC #R 51 Space Shuttle Endeavor 51 Salyut 51 Helios 2A 51 ILS Proton rocket 51 GSAT 5P satellite 51 SpaceLoft XL rocket 51 ESA CNES 51 Yuri Shargin