Programmable Thermostat Module Upgrade for the Multipurpose Logistics Module

NASA/TM-2007-214957, Clark, D.W. and Glasgow, S.D. and Reagan, S.E. and Presson, K.H. and Howard, D.E. and Smith, D.A., Programmable Thermostat Module Upgrade for the Multipurpose Logistics Module, George C. Marshall Space Flight Center, Marshall Space Flight Center, AL 35812, National Aeronautics and Space Admin, Washington, DC 20546–0001, May 2007, pp. 32, Format(s): PDF 2612k

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The STS-121/ULF 1.1 mission was the maiden flight of the programmable thermostat module (PTM) system used to control the 28 V shell heaters on the multi-purpose logistics module (MPLM). These PTMs, in conjunction with a data recorder module (DRM), provide continuous closed loop temperature control and data recording of MPLM on-orbit heater operations. This Technical Memorandum discusses the hardware design, development, test, and verification (DDT&V) activities performed at the Marshall Space Flight Center as well as the operational implementation and mission performance.

Keywords:	programmable, thermostat, data, recorder, module
Subjects:	Astronautics: Spacecraft Design, Testing And Performance
ID Code:	748
Deposited On:	14 June 2007