Updates ISS UPDATES

[Orbinaut Pete]

Where did you get all this info Pete?

Some of it is just my personal knowledge, but I get most of it from the ISS Daily Reports.

---------- Post added at 11:46 PM ---------- Previous post was at 03:15 AM ----------

NASA Watch: "Former Shuttle Astronaut Story Musgrave Thinks That The ISS is 'an ungodly sin'".

'An ungodly sin'? Hmm, I think that's a bit extreme!

 

[Chupacabra]

NASA Watch: "Former Shuttle Astronaut Story Musgrave Thinks That The ISS is 'an ungodly sin'".

'An ungodly sin'? Hmm, I think that's a bit extreme!

While I think that the ISS is highly important, after hearing Dr. Musgrave speak in person, I get the feeling that he knows what he is talking about.

 

[SiberianTiger]

NASA Watch: "Former Shuttle Astronaut Story Musgrave Thinks That The ISS is 'an ungodly sin'".

'An ungodly sin'? Hmm, I think that's a bit extreme!

How did he dare to say that!? The ISS is full of blessing and God's Grace:

Not a single Day of All Saints is missed!

And for those who are still in doubt about the divine nature of the spaceflight, we the Russians have a new generation God-powered HLV in development to help spreading the holiness to the entire inner Solar System!

now go listen to him sayin'...

 

[Orbinaut Pete]

From ISS Daily Report for 23/04/2010:

Soichi and Tracy spent 2 hrs on the long-planned relocation of the Cupola RWS (Robotics Workstation) from Destiny to its designated place in the Cupola.
[During the installation, care was taken to provide enough cable slack to allow repositioning the RWS forward and starboard without cable dematings. With the RWS CRA (Crew Restraint Assembly) subsequently installed by Caldwell-Dyson, Noguchi then had additional time scheduled for powering up the RWS, configuring its laptop and performing an RWS checkout. At the end, the systems were turned off again.]

The crew assembled for a joint review of the upcoming major job of relocating the T2 COLBERT treadmill from Node 2 to its final location in Node 3, and the subsequent setting up and outfitting of the new 19A-delivered CQ (Crew Quarters) in the Node 2 Overhead location. The time-critical activity will be spread over three days, starting tomorrow.
[Currently, the 6 crewmembers have only 5 permanent sleep stations: 2 Kayutas in Zvezda, 2 CQs in Node 2, and 1 CQ in the JPM. A temporary sleep station is in the JLP, with JAXA’s agreement due to expire on 1/5. To gain some extra time in case of delays, the relocation activity must begin tomorrow (Saturday), leaving only one more weekend before Progress M-05M/Progress 37 arrival. T2 relocation includes teardown, transfer, installation, VIS (Vibration Isolation System) installation, VIS photography for ground review, ACO (Activation & Checkout), and ground review of ACO data.]

Reboost:
A one-burn reboost of ISS is scheduled tonight for 4:30 PM EDT using Progress M-04M/Progress 36 propulsion, viz. 8 aft DPO (Approach & Attitude Control) thrusters. Planned burn duration: 20 min 45 sec; delta-V: 3.0 m/s. ISS attitude control authority will be handed over to RS MCS (Motion Control System) at 3:00 PM and returned to US MM (Momentum Management) at 5:40 PM.

Vozdukh Failure:
The Vozdukh CO2 removal system is currently down, having failed four times this week. Indications seem to point to a sticky valve, most likely the BVK1 vacuum valve. This has happened before, and Vozdukh is usually quickly recovered. Current CO2 levels are good.

 

[Orbinaut Pete]

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.

---------- Post added at 12:26 AM ---------- Previous post was at 12:22 AM ----------

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).

---------- Post added at 11:23 PM ---------- Previous post was at 12:26 AM ----------

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).]

 

[Orbinaut Pete]

Some NASA TV screenshots of the Cupola RWS relocation mentioned in my previous posts.

 

[Orbinaut Pete]

From ISS Daily Report for 26/04/2010:

In Node 2, Oleg Kotov & Mikhail Kornienko continued installation & outfitting of the CQ (Crew Quarters) at rack bay Overhead 5, today activating, readying and checking out the CQ rack for the desired habitable volume configuration, including mating the CQ’s C&DH (Command & Data Handling) data cables. The completion of these activities allows Misha to sleep in the new CQ tonight for the first time.

Also in Node 2, Oleg & Misha rerouted the jumpers of Noguchi’s ad hoc CQ in the JPM from location Overhead 5 to Deck 5 (i.e., the past location of the T2 treadmill and future location of Soichi’s CQ after its relocation from the JPM), followed by a checkout of the ad hoc CQ. [Rerouting the JPM CQ jumpers to Deck 5 allowed hooking up the new CQ at Overhead 5 to its proper data connections. To make sure that C&W (Caution & Warning) alerts are triggered as expected after the cable rerouting, power to the ad hoc CQ was temporarily cut off.]

T2 Update:
The T2 COLBERT advanced treadmill, installed by the crew over the weekend in Node 3, has not been cleared for use. Ground inspection of documentary photographs has shown that there is too little clearance at the top of the T2 rack and almost no clearance at the bottom, due to a GLA (General Luminaire Assembly) lighting fixture. For operation, at least ¾” of clearance is required on top and bottom of the rack. Further T2 activities, including the scheduled jam nut securing and ACO (Activation & Checkout) runs, have been put on hold until a forward plan has been developed.

Progress M-05M/Progress 37 Launch Preps:
At Baikonur/Kazakhstan, preparations continue for the launch of the Progress M-05M/Progress 37 cargo vehicle to the ISS, scheduled for 28/04 @ 5:15 PM GMT. The Soyuz-U launch vehicle was rolled out from the Integration Building and installed on the launch pad. L-2 activities have been started. Progress M-05M will deliver 1,918 pounds of propellant, 110 pounds of oxygen & air, 220 pounds of water and 3,031 pounds of spare parts & experiment hardware.

 

[Orbinaut Pete]

From ISS Daily Report for 27/04/2010:

Progress M-03M/Progress 35 has been de-orbited.

Russian vers. 8.04 software was uploaded to the SM (Service Module) via ground-command today, which enables the Russian Segment to support MRM-1.

With the Elektron O2 generator and Vozdukh CO2 scrubber deactivated, FE-3 Kornienko conducted an oxygen repress of the ISS atmosphere from Progress M-04M/Progress 36 stores.

FE-2 installed, cabled and activated the new VCAM (Vehicle Cabin Atmosphere Module) instrument for its first run. [The JPL-developed VCAM identifies gases that are present in minute quantities in the ISS breathing air that could be harmful to crew health. If successful, instruments like VCAM could accompany crewmembers during long-duration exploration missions. Similar to the earlier employed VOA (Volatile Organic Analyzer), VCAM can provide a means for monitoring the air within enclosed environments, using a miniature preconcentrator, GC (gas chromatograph), and mass spectrometer for unbiased detection of a large number of organic species. VCAM's software can identify whether the chemicals are on a targeted list of hazardous compounds and their concentration. A VCAM calibration gas is used periodically to check how the instrument’s components are actually performing. The raw data, calibration data, and analysis results are all sent to the ground for further assessment to validate the instrument’s detection, identification, and quantification results.]

T2 Update:
Working from their discretionary “job jar” task list, the crew began troubleshooting activities on the T2 COLBERT treadmill in Node 3 (to be hard-scheduled later this week). Activities include installing spacer bars and stabilizers on the T2 rack, then photo documenting the sway space, including steps to ensure 3/4" sway space is visible. In another activity, for troubleshooting the wireless connectivity, the crew was to manually navigate to the server from the T2 display, and also transfer the data from the display to a USB memory stick for downlink. [Background: T2 has not been cleared for use yet since there is not enough sway clearance at the bottom and top of the rack.]

 

[Orbinaut Pete]

From ISS Daily Report for 28/04/2010:

Skvortsov performed troubleshooting on the Vozdukh CO2 removal system, switching its two vacuum valves. [Vozdukh is exhibiting “uncommanded” shutdowns every 2 days or so. Today’s switch should either fix the problem or help isolate it by providing better insight.]

Servicing the two CQs at Node 2 Starboard & Port, Noguchi replaced all 9V batteries with fresh ones.

Timothy checked out the VWSs (Video Streaming Workstations) set up in Node 1 & Node 2, to be tested by the ground for their ability to “stream” MPEG-2 video in preparation for the ULF-4 flight and to make sure that new cable drag-through rules are met. [The three VWSs have been updated for streaming in US-format (NTSC) video. ULF-4 plans to utilize all three at the same time on FD-5 during MRM-1 “Rassvet” installation. One, VSW1 in Node 1, will convert Russian-format video to NTSC, which then will be routed to the RWS monitor, and RWS displays will be used as an overlay. The other two VWSs in Node 2, will accept analog video from the Shuttle Orbiter and create two MPEG2 video streams that will be on hardwired SSC (Station Support Computer) Clients in the Cupola, thus reducing the need for drag-through video cables. Note: In today’s test, VSW3 proved to be not functional and required replacement of the laptop shell.]

Soichi supported the ground with the T2 COLBERT treadmill installation problem. [Activities included calibrating the T2 display touch screen, reinstalling stabilizers & spacer bars, measuring the rack’s top sway space and taking more documentary photographs of the clearances for ground inspection. Background: T2 has not been cleared for use yet since there is not enough sway clearance at the bottom and top of the rack.]

Progress 35P Update:
Yesterday at 2:07 PM EDT, Progress M-03M/35P performed a nominal deorbit burn and re-entered the atmosphere for destruction over the Pacific Ocean. The unmanned cargo ship had completed all maneuver burns in support of the “Radar” experiment nominally.

 

[Orbinaut Pete]

A great shot from Soichi Noguchi via Twitter - a "fish-eye lens" view of the Earth seen from Cupola!

 

[Orbinaut Pete]

A 25 min. HD ISS tour by Soich Noguchi (in Japanese).
He goes EVERYWHERE - including inside Progress M-04M/36P docked at SM Aft! :thumbup:

http://www.youtube.com/watch?v=MapArikS4q8"]YouTube- 野�宇宙飛行士�ISSツアー [H

---------- Post added at 08:55 PM ---------- Previous post was at 03:20 PM ----------

From ISS Daily Report for 29/04/2010:

T2 Update:
The T2 COLBERT treadmill has not yet been cleared for use, although a photo inspection yesterday showed that T2 ops can proceed. The crew executed a procedure on 28/04 which verified that there is sufficient sway space for the T2 rack at the top of the rack. But parallax in the photos make it difficult to prove that there is sufficient sway space at the bottom. A "bump test" will be performed once the rack is centered and aligned, which should verify that there is enough sway space on all sides of the T2 rack.

---------- Post added at 09:10 PM ---------- Previous post was at 08:55 PM ----------

Per NASASpaceFlight, the Loop A NTA (Nitrogen Tank Assembly) GPRV (Gas Pressure Regulating Valve) problem that occurred on STS-131 has been fixed and the new ATA (Ammonia Tank Assembly) that was installed on STS-131 has been successfully pressurised! :thumbup:

So it looks like the Stage EVA will not be needed!

---------- Post added 1st May 2010 at 08:42 PM ---------- Previous post was 30th Apr 2010 at 09:10 PM ----------

Full Loop A NTA GPRV problem resolution article from Spaceflight Now.

 

[Orbinaut Pete]

From ISS Daily Report for 04/05/2010:

In Node 3, Tracy worked on the T2 to align and center its rack for a planned push test on Friday (to check on swaying space), and a hoped-for lock-down for use on Monday, followed by the ACO (Activation & Checkout) runs.

With all remaining propellants in Progress M-04M/36P transferred, TsUP/Moscow today performed the standard vacuum purging of the Progress fuel (ZUG) and oxidizer (ZUO) lines, venting prop residuals in the plumbing between Progress & the SM into space, with prior attitude control handover to the Russian MCS (Motion Control System).

FE-5 Noguchi prepared for the long-overdue installation of the RWS in the Cupola. [Steps included removing the handrail which had blocked the Cupola DCP (Display & Control Panel) connection to its UOP (Utility Outlet Panel) due to shortness of the power cable, then powered up the CUP DCP, reconfigured the Node 1 JSL (Joint Station LAN) network by installing a new 37P-delivered cable to extend JSL hard-line connectivity into Node 3 to enable Cupola Robotics operations on ULF-4, and performed DCP checkout.]

In Node 3, Noguchi also installed a new WAP (Wireless Access Point) for the network extension.

---------- Post added 5th May 2010 at 06:45 PM ---------- Previous post was 4th May 2010 at 08:08 PM ----------

Expedition 26 crew patch preview from collectSPACE.

www.collectspace.com/iss26patch

A truly amazing patch!

---------- Post added at 11:14 PM ---------- Previous post was at 06:45 PM ----------

From ISS Daily Report for 05/05/2010:

Noguchi assembled the crew restraint for the Cupola, enabling crewmembers to work at the newly installed CUP RWS (Cupola Robotics Workstation) without floating away.

 

[SiberianTiger]

Expedition 26 crew patch preview from collectSPACE.

www.collectspace.com/iss26patch

A truly amazing patch!

Cool, yes! BTW, Skripochka's surname means "little fiddle". :lol:

 

[Orbinaut Pete]

From ISS Daily Report for 06/05/2010:

Today is the 44th birthday of FE-1 Alexander Skvortsov!

The CDR finished transferring & stowing trash and other disposable cargo on Progress 36P, wrapping up preparations for its undocking on 5/10.
Several hours were then spent by Oleg & Sasha on preparing Progress 36P for its departure. Close-out steps included:
. Installing the docking mechanism between the cargo ship and the SM aft port.
. Uninstalling & removing the LKT local temperature sensor commutator of the BITS2-12 onboard measurement telemetry, along with its ROM (Read Only Memory) unit for re-use.
. Activating the spacecraft’s electronics and taking out the ventilation/heating air duct.
. Closing the hatches upon GO from TsUP.
. Removing the QD (Quick Disconnect) screw clamps of the docking & internal transfer mechanism which rigidized the joint [during clamp removal and leak checking, Russian thrusters were inhibited from due to load constraints].
. Starting the standard one-hour leak checking of the SU docking vestibule and fuel/oxidizer transfer line interface between Progress and SM.
. Downlinking Oleg’s formal report on loading completion and the video depicting the close-out activities, for review by ground specialists.

Timothy & Tracy spent ~3 hrs in the US Airlock, resizing three EMUs for the STS-132/ULF-4 spacewalks. [Prime spacesuit will be EMU 3009, backups are EMUs 3005 & 3010. The EVAs will be performed by Reisman, Bowen & Good, who will bring their own suits. The ISS EMU 3009 is for the IV (Intravehicular) crewmember providing Campout assistance.]

In Node 3 Cupola, TJ removed the 9ft RWS wire harness assembly used for the successful Cupola RWS troubleshooting activities last Tuesday and installed a 14ft wire harness instead. However, the RWS displayed intermittent video after the swap and became stable when the 9ft cable was retrieved and reinstalled. [For the time being, no configuration changes are in work, and the crew will periodically monitor the video status to confirm video stability.]

Soichi & Tracy joined forces in conducting the planned “bump” test of the newly installed and re-centered T2 COLBERT treadmill. [For the bump test, the T2 rack was equipped with handrails and manually moved in all directions to check if other objects are contacted before the snubber pins correctly contact the snubber cups. The ground will review today’s documentary photos before proceeding to the final step on 07/05 – tightening the T2 jam nuts.]

 

[Orbinaut Pete]

Photo of Sasha's birthday party from Soichi Noguchi via Twitter.

 

[Orbinaut Pete]

From ISS Daily Report for 07/05/2010:

After its correct centering in Node 3 and the successful completion of the bump test yesterday, Tracy & Soichi worked to fasten the T2 COLBERT treadmill rack down by tightening jam nuts and marking them. T2 ACO (Activation & Checkout) is scheduled for 10/05 (Monday).

COL DMS Recovery:
The Biolab rack in COL (Columbus Orbital Laboratory) was re-activated after successful recovery of the Columbus DMS (Data Management System) yesterday afternoon. That also allowed reactivation of the MSG for TJ today. [Search for root cause is underway.]

MT Translation:
Yesterday, the Mobile Transporter with the SPDM (Special Purpose Dexterous Manipulator) “Dextre” was successfully translated along its rails from WS-5 (Worksite 5) to WS-4. Due to loads constraints, Russian thrusters were disabled, i.e., were not available for CMG (Control Moment Gyroscope) desaturation.

Progress Updates:
Progress M-05M/37P, docked at DC-1 Nadir, was integrated into the ISS MCS (Motion Control System) yesterday and is enabled to perform attitude control around the roll axis (taking advantage of its considerable radial lever arm distance from the roll axis). Progress M-04M/36P, docked at SM Aft, is ready for undock on Monday. [After undocking at 12:15 PM GMT, it will separate from the station and perform a retrograde burn (~4:06 PM GMT) into a lower orbit where it will remain in free-flyer mode until deorbit and destructive reentry in early June.]

 

[Orbinaut Pete]

From Soichi Noguchi via Twitter - Moscow photographed from the ISS! Happy Victory Day weekend to all our Russian Orbinauts!

 

[SiberianTiger]

In the voice of Goblin Zeppelin pilot from Warcraft II: I CAN SEE MY HOUSE! :camera: (or at least, the crossroads near which it should be)

From Soichi Noguchi via Twitter - Moscow photographed from the ISS! Happy Victory Day weekend to all our Russian Orbinauts!

Many thanks!

 

[Orbinaut Pete]

From ISS Daily Report for 09/05/2010:

To get the T2 COLBERT treadmill ready for ACO (Activation & Checkout) tomorrow (10/05), FE-2 Caldwell-Dyson reconfigured its MTL (Moderate Temperature Loop) jumpers and ground strap. [Tracy removed one end of the grounding strap and rerouted it to the other side of the MTL jumpers to minimize loads on the strap while T2 is in motion, and then secured the two T2 MTL jumpers to the launch bracket via tie wraps to keep them away from T2 structure movement while T2 is in motion.]

Soyuz TMA-17/21S Thruster Test:
In preparation of Soyuz TMA-17/21S relocation on Wednesday (12/05), a 21S MCS (Motion Control System) thruster test will be conducted tomorrow from ~5:27 PM GMT to 5:28 PM GMT, with ISS in Free Drift. Attitude control authority handover to RS MCS will be at 5:08 PM GMT and return to US Moment Management at 5:55 PM GMT.

---------- Post added 10th May 2010 at 08:46 PM ---------- Previous post was 9th May 2010 at 10:13 PM ----------

From ISS Daily Report for 10/05/2010:

Starting at ~4:55 PM GMT and lasting approximately one hour, CDR Kotov conducted the pre-relocation thruster test of the Soyuz TMA-17/21S spacecraft.

In Node 3, Tracy completed the long awaited ACO (Activation & Checkout) of the T2 COLBERT treadmill. Video and data are currently under review, and a formal GO for nominal operations was expected later today. [Efforts by the crew to secure the MTL (Moderate Temperature Loop) jumpers prior to the ACO were unsuccessful due to bending “memory” of the hoses. One of the jumpers is contacting the Y-Axis isolator bracket; in addition, the entire MTL line assembly is being compressed as the rack is in motion. Ground engineers are assessing long-term impacts and developing mitigation plans.]

 

[Orbinaut Pete]

From ISS Daily Report for 11/05/2010:

After Tracy’s ACO (Activation & Checkout) run on the T2 COLBERT treadmill yesterday, the machine was declared GO by engineers.