2011年3月29日 星期二

NASA ISS On-Orbit Status 29 March 2011

Upon wake-up, CDR Kondratyev performed the regular daily check of the aerosol filters at the Russian Elektron O2 (oxygen) generator which Maxim Suraev had installed on 10/19/09 in gaps between the BZh Liquid Unit and the oxygen outlet pipe (filter FA-K) plus hydrogen outlet pipe (filter FA-V). [Dmitri will inspect the filters again before bedtime tonight, currently a daily requirement per plan, with photographs to be taken if the filter packing is discolored.]

Kondratyev also terminated his 10th experiment session, started last night, for the long-term Russian sleep study MBI-12/Sonokard, taking the recording device from his Sonokard sports shirt pocket and later copying the measurements to the RSE-Med laptop for subsequent downlink to the ground. [Sonokard objectives are stated to (1) study the feasibility of obtaining the maximum of data through computer processing of records obtained overnight, (2) systematically record the crewmember's physiological functions during sleep, (3) study the feasibility of obtaining real-time crew health data. Investigators believe that contactless acquisition of cardiorespiratory data over the night period could serve as a basis for developing efficient criteria for evaluating and predicting adaptive capability of human body in long-duration space flight.]

Afterwards, Dmitri conducted the periodic maintenance of the active Russian BMP Harmful Impurities Removal System, starting the "bake-out" cycle to vacuum on absorbent bed #2 of the regenerable dual-channel filtration system. The process will be terminated at ~4:30pm EDT before sleep time. Bed #1 regeneration was performed yesterday. [Regeneration of each of the two cartridges takes about 12 hours and is conducted only during crew awake periods. The BMP's regeneration cycle is normally done every 20 days. (Last time done: 3/7-8).]

The three crewmembers undertook the standard 90-min. OBT (on-board training) session with procedures designed to respond to a rapid depressurization emergency. A joint drill debrief with ground specialists via S-band at ~12:15pm EDT wrapped up the exercise. [Objective of the exercise is to provide proficiency training for crew response during depressurization. The training exercise is performed under the most realistic emergency conditions possible. Instructors & OBT experts at the control centers (TsUP-Moscow, MCC-Houston, COL-CC/Oberpfaffenhofen and SSIPC/Tsukuba) stood by to send commands as required and respond to crew questions. The crew moved throughout the station in order to simulate emergency response actions per procedures at specific checkpoints; they communicated & coordinated simulated actions with the control centers as if this were a real event.]

FE-5 Nespoli checked out & activated the MSG (Microgravity Science Glovebox) for the subsequent operation of the BXF (Boiling eXperiment Facility) payload, replaced the faulty SAMS TSH (Space Acceleration Measurement System Triaxial Sensor Head) power cable (#3) with a new one (#1) and realigned the BXF camera lens for the experiment run, controlled from the ground.

In the JAXA Kibo JPM (JEM Pressurized Module), FE-6 worked on the CBEF (Cell Biology Facility), setting up the NANOSKELETON-2 payload for experiment run 1. [Activity steps included gathering & configuring the payload items from stowage, taking photography of the NANOSKELETON-2 sample bags with the NIKON D2X, mixing the sample solutions, setting up Bag Cartridge A & MEU A (Measurement Experiment Unit A) with the samples, attaching two MEU A units at the CBEF IU (Incubator Unit) for Micro-G and starting the experiment. Later, the experiment was closed out and all payload items put back in stowage. NANOSKELETON is one of the micro-G experiments conducted by JAXA for industrial application. In the experiment, the TiO2 (titanium oxide) "nanoskeleton" is synthesized with a mixture of CTAB surfactant solution and TiOSO4-H2SO4 solution under isothermal conditions (40 degC), to quantitatively investigate the effects of gravity during a chemical reaction process. The experiment uses oil (TMB) to enlarge the pore size of the honeycomb structure; therefore, this experiment will attempt to clarify the effects of gravity such as the flotation of oil and convective flow, by evaluating the retrieved samples. Experiment output on orbit consists of the temperature samples plus images.]

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