Requirements, Resource Planning and Management for Decrewing/Recrewing Scenarios of the International Space Station David A. Bach
[email protected] Barrios Technology, Inc. NASA – Johnson Space Center TOPICS COVERED • August 2011 Decrewing Background and History • Increment Support • Priority Integration • Recommendations and Lessons Learned 2 BACKGROUND • On August 24, 2011, the propulsion unit of the Soyuz-U rocket carrying 44 Progress (44P) failed. The rocket and cargo was lost. • The failure occurred, five months into the six month Expedition 27/28 Mission. • No crew or ground Expedition 28 Crew personnel were injured. 3 WHAT HAPPENED • Subsequent Russian launches using the Soyuz rocket (-U and -FG series) were suspended pending analysis and Russian Commission results. • The two Soyuz vehicles docked to ISS for the Expedition 28 crew were unaffected by the failure of 44P. Launch of 43P - June 21, 2011 4 5 PLANNED & EXECUTED FLIGHT PROGRAMS Baselined Flight Program / Port Utilization Plan As Flown Post-44P Incident Flight Program / Port Utilization Plan 6 DECREW ASSESSMENT TEAMS • Joint Operations Panel established with Splinter teams to assess decrewing, sustained uncrewed operations, and subsequent recrewing of the ISS • Splinters were chaired by various ISSP teams 26S departs the ISS on September 16, 2011. Expedition 29 begins with only 3 crew members onboard for 61 days (four times longer than originally planned). 7 ASSESSMENT GUIDELINES • Existing ISS Program and Flight Rule documentation was used by the Splinters in developing crew and ground actions. Fossum works with Robonaut 2 in the Destiny laboratory . Fossum and Furukawa performed checkout and operations with R2. 8 VEHICLE MANIFEST & CONSUMABLES SPLINTER • ISSP Representatives chaired the Vehicle Manifest and Consumables splinter.