cots/crscommercial resupply services for the iss
Post on 12-Sep-2021
3 Views
Preview:
TRANSCRIPT
COTS/CRS CommercialResupplyServicesfortheISS
INNOVATION YOU CAN COUNT ON®
COTS/CRS
INTRODUCTION & SYSTEM OVERVIEW
Under a Commercial Orbital Transportation Services
(COTS) cooperative agreement, Orbital and NASA are
jointly developing a new space transportation system
to demonstrate the capability to provide cargo delivery
servicestotheInternationalSpaceStation(ISS).TheCOTS
programwillinvolvefull-scaledevelopmentanda2012flight
demonstration of a commercial cargo delivery system, and
consistsoftwoelements:
• TheAntares™ medium-class space launch vehicle
• TheCygnus™ advanced maneuvering spacecraft, which
includes a pressurized cargo module developed by Orbital
and its industrial partner Thales Alenia Space
WiththeawardoftheCommercialResupplyService
(CRS)contract,NASAselectedOrbitaltoprovideeight
pressurizedcargomissionsbeginningin2012andrunning
through2015.ForNASA,CRSwillprovideaU.S.-produced
and-operatedautomatedcargodeliveryserviceforISS
logisticsupport,tocomplementRussian,Europeanand
JapaneseISScargovehicles.
MuchofthedevelopmentoftheOrbitalCOTS/CRSsystem
isinternallyfunded.Industrialpartnersincludesomeof
the world’s leading space companies providing heritage
subsystems with flight-proven heritage to ensure high
reliability.TosupporttheCOTS/CRSmissions,newground
support and launch facilities are being built at NASA’s
WallopsFlightFacility,Virginia.
ANTARES SPACE LAUNCH VEHICLEAntares is a two-stage launch vehicle designed to provide responsive, cost-effective,
and reliable access to orbit and Earth escape for medium-class payloads weighing
over5,000kg.Antaresisdesignedtobeahighly-reliablelaunchertomeetNASA
Category3andsimilarDoDmissionsuccessstandards,andincorporatesflight-proven
subsystems to reduce development cost, schedule and risk.
SYSTEM FEATURES• Incorporatesbothsolidandliquidstagesandflight-proventechnologies
tomeetmedium-classmissionrequirements
• Providessubstantialpayloadperformanceintoavarietyoflow inclination low-Earth and sun-synchronous orbits and interplanetary trajectories
• 3.9meterfairingaccommodateslargepayloads
• Streamlinedvehicle/payloadintegrationandtestingvia simplified avionics interfaces reduces time from encapsulation to lift-off
• Initiallaunchcapabilityin2012fromWallopsFlightFacility(WFF)
• Capableoflaunchingsingleandmultiplepayloads
• CompatiblewiththeWesternRangeatVandenbergAirForceBase(VAFB),EasternRangeatCapeCanaveralAir Force Station (CCAFS) and Kodiak Launch Complex (KLC)
Launch Vehicle • Diameter:3.9meters
• Height:40.0meters
• Mass:290,000kg
Stage 2 • ATKCASTOR®30B/30XLsolidmotor
(CASTOR120heritage)withthrustvectoring
• AvionicsusingOrbitalMACHcomponents
Stage 1• TwoAerojetAJ26-62engineseachwith
independent thrust vectoring
• Liquidoxygen/kerosenefueled
• Orbitalresponsibleforsystemdevelopmentandintegration
• CoretankassemblydesignanddesignverificationbyKBYuzhnoye(Zenit-derivedheritage)
• CoretankassemblyproductionbyYuzhmash
• Stagecontrollerusingflight-provenOrbitalMACHcomponents
©2011 Orbital Sciences Corporation G008_09f
CYGNUS ADVANCED MANEUVERING SPACECRAFT
The Cygnus advanced maneuvering spacecraft is a low-risk design incorporating
elements drawn from Orbital and its partners’ existing, flight-proven spacecraft
technologies. Cygnus consists of a common service module and a pressurized cargo
module. The service module incorporates avionics, propulsion and power systems from
Orbital’s flight-proven GEOStar™ and LEOStar™ satellite lines.
The pressurized cargo module is based the on the Multi-Purpose Logistics Module
(MPLM), developed by Thales Alenia Space for NASA. The module will carry crew
supplies, spares and scientific experiments.
Service Module (SM)
• Design,integrationandtestperformedbyOrbital
• Heritage:GEOStar,LEOStar
• GrossMass:1,800kg
• PowerGeneration:2fixedwingsolararrays,ZTJGalliumArsenidecells
• PowerOutput:3.5kW(sun-pointed)
• Propellant:Dual-modeN2H4/MON-3orN2H4
Pressurized Cargo Module (PCM)
• Design,integrationandtestperformedbyThalesAleniaSpace
• Heritage:Multi-PurposeLogisticsModule
• GrossMass:3,500kg
• TotalCargoMass:2,000kgStandard/2,700kgEnhanced
• PressurizedVolume:18.9m3/27m3
• BerthingatISS:Node2CommonBerthingMechanism(CBM)
ORBITAL SCIENCES CORPORATION
21839AtlanticBoulevard,Dulles,VA20166703/406-5000www.orbital.com
FOR MORE INFORMATION:
Mr.FrankDeMauro,VPandProgramDirectorCOTS/CRSProgram 703/948-8766,demauro.frank@orbital.com
Mr.CarlWalz,DeputyProgramManagerCOTS/CRSProgram 703/404-7475,walz.carl@orbital.com
top related