From ISS Daily Report for 25/04/2010:
The crew had a busy day relocating the T2 COLBERT advanced treadmill from its temporary location in Node 2 to its final location in Node 3. [While FE-1 Skvortsov gathered and managed parts/components removed during T2 uninstall for redistribution in Node 3 and performing photo documentation of the various procedural steps, FE-2 Caldwell-Dyson and FE-6 Creamer removed the T2 system from the Node 2 Deck 5 location and then installed it in the Node 3 Forward 5 location. FE-5 Noguchi handled the treadmill cabling, removing data & power jumpers in Node 2 and reconfiguring them in Node 3. Tomorrow, Day 2, will feature installation of the T2 VIS (Vibration Isolation System), along with documentary photography. Three more days are scheduled until nominal full T2 restoration.]
Noguchi & Creamer supported T2 relocation by temporarily removing the TOCA (Total Organic Carbon Analyzer) plus the WHC (Waste & Hygiene Compartment) Kabin structure, then configuring the WRS-1 (Water Recovery System 1) Rack for T2 installation. TOCA and Kabin were later replaced in their locations. [The crew needed 2.5 hrs, longer than planned, to complete the job which required multiple rack rotations to adjust braces for proper fitting.]
Along with T2 relocation, the crew has started on the commissioning of the new STS-131/19A delivered CQ (Crew Quarters) in the Node 2 Overhead 5 location, to be used as a permanent sleep station in Node 2. For the commissioning, Creamer, Caldwell-Dyson & Kotov removed the “bumpout” structure in Node-2, and Kornienko & Creamer afterwards re-installed it (which required rack rotation).
The TVIS treadmill has been declared GO for nominal use (which actually cleared the way for the removal & relocation of T2). Remaining task today was for Oleg Kotov to open the two TVIS circuit breakers in the SM (Service Module) to allow cool-down of the machine before exercise ops. [Skvortsov & Kornienko yesterday successfully completed the 4th and final part of the combined annual TVIS maintenance, by finishing the work on the stabilizers and reinstalling TVIS into the SM pit. After their unmanned speed characterization test, followed by the full ACO (Activation & Checkout) run, data were analyzed on the ground and found good to go.]
Reboost Update:
Yesterday’s reboost at 4:30 PM EDT was nominal. Using Progress 36P’s 8 aft DPO (Approach & Attitude Control) thrusters for a burn duration of 20 min 45 sec, the maneuver achieved a delta-V of 3.07 m/s (planned: 3.0) and mean altitude increase of 5.42 km (planned: 5.38). Awesome accuracy: a very slight over-burn resulted in ~40 m additional altitude which is within the 5% criterion for a reboost to be considered nominal.
Vozdukh Update:
Vozdukh CO2 removal system is up and running. TsUP-Moscow speculated that the failure was due to a transient problem with the BVK-1 & -2 vacuum valves. Both valves were stopped by the Vozdukh control system in the intermediate position, making the system shut itself down. After a manual reset of the BVKs and a reset of all the system parameters to the initial condition, Vozdukh was restarted without additional problems.
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So far, the following pre STS-132 tasks have been completed:
Progress M-03M/Progress 35 undocking from Pirs.
ISS reboost by Progress M-04M/Progress 36.
Cupola RWS (Robotics Workstation) relocation from Destiny and installation into the Cupola
T2 COLBERT rack relocation from Node 2 Deck 5 location to Node 3 Forward 5 location.
Setup of CQ (Crew Quarters) rack at Node 2 Overhead 5 location.
The following pre STS-132 tasks still remain to be completed (not in chronological order):
Progress M-05M/Progress 37 launch [April 28] and docking to Pirs [May 1].
Progress M-04M undocking from Zvezda's Aft port [May 10].
Soyuz TMA-17 relocation from Zarya's Nadir port to Zvezda's Aft port [May 12].
CQ rack relocation from the JPM to Node 2 Deck 5 location.
Possible US EVA to replace faulty NTA (Nitrogen Tank Assembly).
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From ISS Daily Report for 24/04/2010:
The crew had another busy day setting up the T2 COLBERT advanced treadmill at its final place in the Node 3 Forward 5 location after yesterday’s relocation from the Node 2 Deck 5 location. [FE-1 Skvortsov retrieved & managed parts/components for T2 installation and conducted photo documentation of the install activities in Node 3. FE-2 Caldwell-Dyson and FE-6 Creamer installed the T2 VIS (Vibration Isolation System) and performed documentary photography of the results in its new rack bay in Node-3. Creamer relabelled the T2 fire port (from “NOD2D5_A1” to “NOD3F5_A1”) and reconfigured the T2 wireless display to connect to the Node 1 WAP (Wireless Access Point). Two more days are scheduled until nominal full T2 restoration.]
In support of T2 operational checkout activities ahead, Noguchi relocated the IWIS (Internal Wireless Instrumentation System)’s triaxial accelerometer assembly from its location in the JPM Port endcone to Node 3, installing it on the T2 frame. Soichi also set up the IWIS RSU (Remote Sensor Unit) in Node 3, for transmitting the structural dynamics/vibrational data measured by the accelerometer.
Additionally, the crew spent several hard-working hours on installing & outfitting the new STS-131/19A-delivered CQ (Crew Quarters) in the Node 2 Overhead 5 location. [CQ outfitting today was conducted by CDR Kotov & FE-3 Kornienko, after FE-5 Noguchi had removed the “bumpout” structure, which he later re-installed. Setting up the CQ rack involved removing launch restraint bolts and transferring the CQ from the launch configuration to the on-orbit crew habitable volume configuration.]
Meanwhile, Noguchi worked on the CQ in the JPM Deck 3 location, rerouting its Node 2 jumpers from Node 2 Overhead 5 to Deck 5, then replacing its 9V batteries with fresh ones and conducting a checkout of the CQ. [The future relocation of the CQ from the JPM Deck 3 location to the Node 2 Deck 5 location is considered a priority. Since its jumpers are currently connected to Node 2, they are “hatch drag-throughs” requiring a special waiver, which is set to expire at the end of the 19A stage (16/5). It will have to be updated to allow for the continued use of the drag-through until the end of the ULF-4 stage (Sept. 2010).]