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DEFENSE WATCH

14

Defense Daily, 2014-12, Vol.264

Potomac: Access Intelligence LLC

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  • Título:
    DEFENSE WATCH
  • Autor: 14
  • Assuntos: Barber, Ron ; McKeon, Buck
  • É parte de: Defense Daily, 2014-12, Vol.264
  • Descrição: The Air Force successfully launches the NROL-35 payload for the National Reconnaissance Office (NRO) on Dec. 12 at 10:19 p.m. EST, according to launch provider United Launch Alliance (ULA). The mission launches on an Atlas V 541 configuration launch vehicle, which includes a five-meter diameter payload fairing along with four Aerojet Rocketdyne solid rocket motors attached to the Atlas booster. The Atlas V features the Russian-made RD-180 engine. ULA's next launch is the Navy's third Mobile User Objective System satellite (MUOS-3) on Jan. 20 from Cape Canaveral Air Force Station, Fla. ULA is a joint venture of Lockheed Martin and Boeing. SpaceX CRS-5. NASA and Space Exploration Technologies Corp. (SpaceX) delay the launch of the company's fifth Cargo Resupply Services (CRS-5) mission to no earlier than Jan. 6, according to a NASA statement. This provides SpaceX engineers time to further investigate some issues that arose from the static fire test of the Falcon 9 rocket on Dec. 16 and will avoid beta angle constraints for berthing the Dragon cargo ship to the station that exists through the end of the year. Estimated launch time for Jan. 6 is 6:18 a.m. EST. Backup launch date is Jan. 7. Beta angles are the angles are the angles between the International Space Station (ISS) orbital plane and the sun, resulting in the station being in almost constant sunlight for a 10-day period. During this time, there are thermal and operational constraints that prohibit the Dragon space capsule from berthing to the station. This high beta period runs Dec. 28-Jan. 7. Orbital Chooses RD-181. Orbital Sciences selects the RD-181 to upgrade the main propulsion system for its Antares rocket, according to a company statement. In making its decision, Orbital says it evaluated other alternatives from several propulsion providers and determines that the RD-181 offers the best combination of schedule availability, technical performance and cost parameters. The company says it is on track to obtain any and all necessary authorizations to support the use of the RD-181s and recently concluded an agreement with Russian engine developer NPO Energomash for the supply of engines. Production has already begun and Orbital will begin taking delivery of the newly-built RD-181s in mid-2015 to support the introduction of the upgraded Antares launcher in early 2016. Orbital spokesman Barry Beneski says the company made its decision about mid-2014 and signed the contract earlier this month. Beneski also says the company will buy the RD-181 directly from Energomash, unlike the RD-180, of which the RD AMROSS joint venture owns the U.S. distribution rights.
  • Editor: Potomac: Access Intelligence LLC
  • Idioma: Inglês
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