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Appendix C: Phase 1 Mir Program
Pages 36-42

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From page 36...
... The two major sources of information pertaining to the Phase 1 Mir program were the NASA's lessons-learned documentation (NASA, 1998) and responses to questions from the committee about the Phase 1 Mir experience in the areas of maintenance and repair, extravehicular activity, station operations, and crew timelines.
From page 37...
... Concerns regarding habitability and exercise also resulted from of the leakage of the ethylene glycol coolant into the cabin atmosphere. There was no direct health threat due to this leakage, but it was a major irritant to the crew and limited exercise opportunities.
From page 38...
... Likewise, the procedures for repairing the coolant leaks were ineffective in preventing further leakage of the coolant into the atmosphere. Finally, the lack of a descent vehicle capability for returning failed hardware drives replacement unit costs and prevents failure analysis for design improvements.
From page 39...
... Deployment and retrieval of numerous small and midsized science experiments Construction of truss experiments Transport, installation, and deployment of solar arrays and attitude control thruster packages Routing, restraint, and connection of cables Backup manual release of a jammed antenna and solar array Transport of crew and large objects via Strela cargo crane External inspections after MMOD events Still and video camera photography
From page 40...
... Communications sessions average 20-25 minutes in length during the ten orbits which constitute the crew work day. Packet Data Communications: One of the VHF FM voice channels can be used to send 9.6 kbaud "packet" data, a type of e-mail transmission commonly used in the amateur radio community.
From page 41...
... Scheduled work activity is approximately 11 hours per crew workday. During Phase 1 of the ISS program, the actual crew work activity often exceeded the scheduled amount of time depending on the type of work being performed and the presence of systems malfunctions on board the station.
From page 42...
... Significant progress In robotics research promises to enhance the performance of robotic servicing systems through improved teleoperation modes and superv~sed-autonomous modes of operation for all of the planned or proposed robotic systems for the ISS. Two research and development programs, the Ranger Project and Me Robonaut Project being developed by NASA Johnson Space Center, are sufficiently well developed and have a high enough probability of yielding significant improvements to the operation of the ISS post Assembly Complete to warrant serious consideration.


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