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Flight Day 6 (FD6) of STS-124/1J. ISS crew work cycle remains unchanged: wake 6:32am EDT; sleep 10:02pm. Crew activities aboard the ISS today centered on three major areas: (1) The second 1J spacewalk, (2) activation of the JPM (Japanese Pressurized Module) Kibo, and (3) preparations for tomorrow's relocation of the JLP (Japanese Logistics Pressurized Module). Mission 1J's EVA-2 was completed successfully by Mike Fossum & Ron Garan in 7h 11min, accomplishing all its objectives. (During the spacewalk, Fossum (EV1) & Garan (EV2) -
Installed Fwd/Aft JTVEs (JEM Television Equipment, i.e., 2 cameras) for monitoring JEM RMS ops (~12:19pm), After wakeup at ~6:32am, ending the 8.5-hr sleep period before the spacewalk, the A/L CL (Airlock Crewlock) hatch was cracked (~7:12am) for a hygiene break/with mask prebreathe for Fossum & Garan, after spending the night on 10.2 psi campout. Around 8:22am, the hatch was closed again by IVs (Intravehicular Crewmembers) for EVA preparations in 10.2 psi, followed by EMU (Extravehicular Mobility Unit) purge & prebreathe. Sergey Volkov, Mark Kelly & Greg Chamitoff assisted the spacewalkers during EMU purge, EMU prebreathe and CL depressurization. EV1/EV2 egress followed after the EMUs were switched to batteries at 11:04am. Before breakfast, Chamitoff collected his second 'wet' saliva sample for the biomed experiment INTEGRATED IMMUNE (Validating Procedures for Monitoring Crew member Immune Function). (IMMUNE protocol requires the collection to occur first thing post-sleep, before eating, drinking and brushing teeth, and all samples are stored at ambient temperature. Along with NUTRITION (Nutritional Status Assessment), INTEGRATED IMMUNE samples & analyzes participant's blood, urine, and saliva before, during and after flight for changes related to functions like bone metabolism, oxidative damage and immune function to develop and validate an immune monitoring strategy consistent with operational flight requirements and constraints. The strategy uses both long and short duration crewmembers as study subjects. The saliva is collected in two forms, dry and liquid. The dry samples are collected at intervals during the collection day using a specialized book that contains filter paper. The liquid saliva collections require that the crewmember soak a piece of cotton inside their mouth and place it in a salivette bag; there are four of the liquid collections during docked operations.) Prior to EVA start, CDR Volkov activated two Kodak DCS760 digital cameras with 28mm lens for the EVA and verified deactivation of all onboard ham radio equipment (Kenwood in SM/Service Module, Ericsson in FGB) to prevent RF interference with the EMUs, as well as proper closure of the protective Lab window shutters. As the spacewalk went on, monitored by Ken Ham & Mark Kelly, crewmembers Hoshide, Nyberg, Reisman, Volkov, Kononenko & Chamitoff worked in the JPM at various times on carefully choreographed outfitting of Kibo. Major transfers from JLP and commensurate installation activities in JPM included - EPS1 (Electrical Power Systems 1) rack & mating of its umbilicals, Deployed the remaining Photo/TV drag-thru cable from Node-2, Nyberg deactivated the JLP MKAM (Minimum Keep Alive Monitor) fan which had been turned on temporarily by Reisman earlier this morning as usual to allow ingress into JLP, Sergey Volkov terminated battery charging for the 'Kelvin-Video' and TTM-2 instruments for another operational run of the Russian KPT-2 science payload BAR-RM, starting tomorrow (6/6) TTM-2 using the RSE-1 laptop, with downlinking via BSR-TM channel. (Objective of the payload is to experiment with ISS leak detection based on environmental data anomalies (temperature, humidity, and ultrasound emissions) at leak locations. The payload uses a remote infrared thermometer (Kelvin-Video), a thermohygrometer (Iva-6A), a heat-loss anemometer/thermometer (TTM-2), an ultrasound analyzer (AU-01), and a leak detector (UT2-03) to determine physical background signs of loss of ISS pressure integrity which could be indicative of leaks in the working compartments of the station. Measurements are taken in specific zones (13 in SM PkhO and 4 in DC1), both with lights & fans turned on and off. ) The FE-1 conducted the periodic (currently daily) checkout/verification of IP-1 airflow sensors in the various RS (Russian Segment) hatchways, including the passageways PrK (SM Transfer Compartment) -ATV, PrK -RO (SM Working Compartment), PkhO (SM Transfer Tunnel) -RO, PkhO -DC1, PkhO -FGB PGO, FGB PGO -FGB GA, FGB GA -Node-1. (This checkup is especially important when the ventilation/circulation system has to cope with a larger crew on board, currently ten persons, and one of the two Russian SKV air conditioners off (SKV-1).) In preparation for a major RS outfitting activity scheduled tomorrow, involving the nominal restoration of mounting structures for the heat exchanger-condenser fans VTK1 & VTK2 of the two Russian SKV air conditioners, the CDR unstowed and readied necessary tooling and reviewed procedures. After the spacewalkers' return on board at 6:15pm, post-EVA activities by Fossum, Garan, Kelly and Chamitoff in the A/L consist of -- Recharging the EMU/spacesuits with water from PWR (Payload Water Reservoir), In the SM, Volkov completed the routine maintenance of the SOZh/ECLSS system, including ASU toilet facilities systems/replaceables (see below for update). (Regular daily SOZh maintenance consists of replacement of the KTO & KBO solid waste containers, replacement of an EDV-SV waste water and EDV-U urine container, and processing U.S. condensate water as it becomes available in a filled CWC from the Lab humidifier.) The CDR also performed the daily IMS (Inventory Management System) maintenance, updating/editing its standard 'delta file' including stowage locations, for the regular weekly automated export/import to its three databases on the ground (Houston, Moscow, Baikonur). FE-2-17 Chamitoff spent more time (~15 min.) on familiarizing himself with the onboard CMS (Crew Medical Systems) exercise equipment. In addition, Greg had another hour for himself for general orientation (station familiarization & acclimatization) as is standard daily rule for fresh crewmembers for the first two weeks after starting station residency. The crewmembers completed their regular 2.5-hr. physical workout program (about half of which is used for setup & post-exercise personal hygiene) on the CEVIS cycle ergometer (FE-2), TVIS treadmill (CDR, FE-1, FE-2), RED resistive exercise device (CDR, FE-1) and VELO cycle with bungee cord load trainer (CDR, FE-1). Afterwards, Sergey copied the exercise data file to the MEC (Medical Equipment Computer) laptop for downlink, including the daily wristband HRM (Heart Rate Monitor) data of the workouts on RED, followed by their erasure on the HRM storage medium (done six times a week). At ~8:15pm EDT, Chamitoff is scheduled for another regular PMC (Private Medical Conference) via S- & Ku-band audio/video. CDRA Update: After yesterday's R&R of its #2 desiccant/sorbent (#202), the Carbon Dioxide Removal Assembly was declared operational. The fan speed was commanded to 130,000 RPM (revolutions per minute) and will remain at that speed for the remainder of the docked mission. ASU Update: After the replacement of the failed MNR-NS gas/liquid separator pump of the Russian ASU toilet system by FE-1 Kononenko yesterday, the crew performed several flushes with water to verify a successful R&R, after which ground specialists declared the ASU 'Go' for use. Prior to replacement of the pump, the crew had been using the backup Wring Receptacle Assembly instead of the ASU. The crew requested instructions on how to package the failed pump on Flight 1J. No CEO (Crew Earth Observation) photo targets uplinked for today.
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