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All ISS systems continue to function nominally, except those noted previously or below. Underway: Week 15 for Increment 11. Flight Day 7 (FD7) of the STS-114/LF-1 mission.
EVA-2 objective was successfully accomplished.
After crew wakeup at ~12:10am EDT this morning, CDR Krikalev and FE/SO Phillips spent most of the day supporting the second spacewalk (of three) by Shuttle Mission Specialists Steve Robinson and Soichi Noguchi.
FE Phillips terminated the recharging of EVA batteries in the A/L BSA (battery stowage assembly) and brought the A/L crew lock (C/L) to pre-EVA configuration, completing EVA-2 spacewalk preparations from yesterday. [In preparation for EVA-2, the crew had reviewed objectives and timeline, cleaned up and stowed all EVA-1 tools, configured and checked out tools for EVA-2, and pre-positioned the ISS SSRMS (Space Station Remote Manipulator System) to support the CMG-1 (control moment gyro #1) removal and replacement (R&R) with its camera views.]
The EVA began at 4:42am, about 27 min later than planned. The spacewalkers, again egressing from the Shuttle airlock and keeping the ISS A/L C/L as backup point of ingress, successfully accomplished all objectives, focusing today on replacing CMG-1 (control moment gyro #1) at the Z1 truss with a spare brought up on STS-114. The Shuttle airlock was repressurized to 14.7 psi and used as a corridor for internal cargo transfers throughout this EVA to maximize overall mission productivity. The failed CMG was placed in the Shuttle payload bay and secured. [After egressing the Shuttle airlock and closing its outer hatch, EV1 Noguchi (red stripes on suit) and EV2 Robinson (all white suit) proceeded to the initial worksite and removed the failed 600-lbs CMG-1, which they returned with the help of the SSRMS (Space Station Remote Manipulator System) to the payload bay for temporary stowage. The replacement CMG was then successfully installed on the Z1 truss in its place. Later, the failed gyro was secured for return. Initial power application and spin-up of the CMG was successful at 9:46am EDT, after Noguchi repeated an originally loose connector mating. Full spin-up takes about 7 hrs before the gyro is confirmed ready for addition to the vehicle attitude management system. This will increase the number of active CMGs from 2 to 3. The fourth CMG will be added to the steering law after Shuttle departure.]
The spacewalk ended at 11:56am, for a total duration of 7h 14m. It was the 60th EVA devoted to ISS assembly operations and the 27th from the Shuttle (33 from the ISS A/L and Pirs DC-1), giving 53 astronauts and cosmonauts a cumulative total of 362h 19m of station spacewalk time.
In addition to the CMG-1 R&R, the spacewalkers completed several "get-ahead" tasks to accommodate new objectives being considered for subsequent EVA during this mission. [The crew retrieved an equipment handle that will be needed for the removal/return of an ISS thermal radiator RJMC (rotary joint motor controller). A set of forceps was retrieved from the Shuttle EVA tool box and a foot restraint was relocated off of the SSRMS in case a subsequent EVA will attempt to remove the protruding tile gap fillers. Throughout this EVA and until the completion of the next EVA, the ISS A/L C/L will remain open for use as a contingency ingress path.]
The MMT (Mission Management Team) and its specialists are assessing potential EVA implications of removing the two protrusions of TPS (thermal protection system) tile gap fillers on the Orbiter s belly, which could trip the boundary layer of the air stream from laminar to turbulent flow earlier during reentry, with changed aerothermal heating effects. Options include the recommendation to modify EVA-3 for the task, rather than doing an additional EVA.
Additional tasks of EVA-3 will be ESP-2 (External Stowage Platform 2) installation, FRC thermal blanket tie-down (near Orbiter window #1), MISSE-5 installation, ETVCG camera replacement and RJMC removal.
Transfer of all MPLM cargo to the ISS is complete, and the prepacked bags returning to the ground are now staged in the empty MPLM.
With the Elektron still off, Sergei Krikalev started the regeneration cycle on absorbent bed #1 of the Russian harmful impurities removal system (BMP). Later tonight, the bake-out to space will be terminated and the vent valve closed. [Regeneration of each of the two cartridges takes about 12 hours; it is not being conducted during crew sleep. The BMP is currently still using the same vacuum vent valve for regeneration as the Elektron (the latter for venting hydrogen).]
In the station, Krikalev completed the daily routine maintenance of the SM's SOZh environment control & life support system, including the ASU toilet facilities.
Both crewmembers conducted their regular 2.5-hr. physical exercise program on the TVIS treadmill, RED resistive machine and VELO bike with bungee cord load trainer. [Sergei s daily protocol prescribes a strict four-day microcycle exercise with 1.5 hr on the treadmill and one hour on VELO plus load trainer (today: Day 2of a new set).]
Afterwards, John transferred the exercise data files to the MEC (Medical Equipment Computer) for downlink, as well as 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).
The CDR also took care of the regular weekly maintenance reboot on the operational PCS (Portable Computer System) laptops.
Sleep period began for all nine crewmembers again this afternoon at 3:40pm EDT. Wakeup will be tonight at 11:40pm.
With the extra flight day added yesterday, the new Shuttle/ISS undocking time will be on FD12 (Saturday, August 6 at 3:22 am EDT), and the new Shuttle landing time will be on FD14 (Monday, August 8 at 4:47am EDT).
CEO photography can be viewed and studied at the websites:
See also the website "Space Station Challenge" at:
To view the latest photos taken by the expedition 11 crew visit:
Expedition 11 Flight Crew Plans can be found at http://spaceflight.nasa.gov/station/timelines/
Previous NASA ISS On-orbit Status Reports can be found here. Previous NASA Space Station Status Reports can be found here. Previous NASA Space Shuttle Processing Status Reports can be found here. A collection of all of these reports and other materials relating to Return to Flight for the Space Shuttle fleet can be found here.
ISS Altitude History
Apogee height -- Mean Altitude -- Perigee height
For more on ISS orbit and worldwide ISS naked-eye visibility dates/times, see http://www.hq.nasa.gov/osf/station/viewing/issvis.html. In addition, information on International Space Station sighting opportunities can be found at http://spaceflight.nasa.gov/realdata/sightings/ on NASA's Human Spaceflight website. The current location of the International Space Station can be found at http://science.nasa.gov/temp/StationLoc.html at NASA's Marshall Space Flight Center. Additional satellite tracking resources can be found at http://www.spaceref.com/iss/tracking.html.