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Exploration Program Status Presentation to the NASA Advisory Council

Status Report From: NASA HQ
Posted: Wednesday, January 12, 2011





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Exploration Program Status Presentation to the NASA Advisory Council
Doug Cooke, Associate Administrator, NASAs Exploration Systems Mission Directorate
January 11, 2011

* Key Auth Act Direction

- The Administrator shall, to the extent practicable, extend or modify existing vehicle development and associated contracts
- The initial capability of the core elements, without an upper stage, of lifting payloads weighing between 70 tons and 100 tons into low-Earth orbit
- The capability to lift the multipurpose crew vehicle
- The capability to serve as a backup system for supplying and supporting ISS cargo requirements or crew delivery requirements not otherwise met by available commercial or partner-supplied vehicles

* SLS Reference Vehicle Design

- 27.5' Diameter LOX/LH2 Core Stage
- Five RS25 based engines using Shuttle assets then RS25E expendable derivative
- Two 5-Segment Ares derived SRBs
- Delivers 108.6t to 30x130 nmi

* Evolved System to 130mT

- Upper stage with one or two J-2X upper stage engines (trades pending)
- Draft FY11 CR language dictates concurrent development of upper stage with core vehicle

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