Updates ISS UPDATES

[Orbinaut Pete]

From ISS On-Orbit Status Report for 21/07/2010:

FE-2 Tracy Caldwell-Dyson had several hours to perform Day 2 activities of repairing the USOS OGS (Oxygen Generation System) which performed an unexpected "Fast Shutdown" on 05/07, probably due to blockage in several cells within the H2 (Hydrogen) Dome ORU (Orbit Replacement Unit). [Yesterday's Day 1 activities were delayed by an RPCM (Remote Power Controller Module) trip. Today, Tracy started off with a set-up activity to prepare for the OGS forward flush. After the ground completed this flush, Tracy configured for the reverse flush which was increased in duration due to the lower than expected flow rate. After the reverse flush was complete, Tracy was to put everything in a good overnight configuration. The H2 Dome R&R (Removal & Replacement) activities planned for today were moved to FE-6 Shannon Walker's timeline tomorrow (22/07). This should get OGS ready for activation, which will be attempted with the spare Pump ORU installed, but a second Pump ORU R&R was to be conducted if the reverse flush has not recovered the spare Pump.]

FE-3 Mikhail Kornienko & FE-5 Fyodor Yurchikhin continued their preparations for Russian EVA-25 in the Orlan spacesuits on 26/07 and the suited training exercise on 23/07, performing further Orlan spacesuit activities in DC-1 (Docking Compartment-1) "Pirs".
After configuring the DC-1 STTS communications link to support their presence, Mikhail & Fyodor:
• Readied Orlan spacesuit replaceable elements & equipment (SMEG).
• Installed the BNP portable repress O2 (Oxygen) tank in the SM (Service Module) RO (Working Compartment).
• Completed individual fit sizing (central strap, lateral strap, hip strap, calf strap, arm cable and shoulder size, front & rear) on their Orlan-MK spacesuits.
• Ran leak checks & valve functionality tests on the Orlans and their BSS interface units in the DC-1 & SM PkhO (Transfer Compartment) from the EVA support panels (POV).
• Conducted pressure checks on the SM BK-3 O2 tanks and the BNP portable repress O2 tank in DC-1.
• Restored DC-1 STTS communications to nominal settings.

Yurchikhin installed the second set of 825M3 Orlan batteries in the battery chargers and initiated the charging.

CDR Alexander Skvortsov readied Progress M-05M/37P, docked at DC-1 Nadir, for undocking if required in a Russian EVA-25 contingency. Steps included:
• Installing the docking probe (StM, Stykovochnovo mekhanizma) on Progress' hatch.
• Activating Progress’ electronics and taking out the ventilation/heating air duct.
• Closing the hatches.
• Removing the QD (Quick Disconnect) screw clamps (BZV) of the docking & internal transfer mechanism (SSVP) which rigidized the joint,
• Starting the standard one-hour leak checking of the SU docking vestibule and fuel/oxidizer transfer line interface between Progress and DC-1.
• Downlinking Sasha's formal report on loading completion and the video depicting the close-out activities, for review by ground specialists. [During hatch closure, leak checking and initial clamp installation, Russian thrusters were inhibited due to load constraints from ~10:20 AM to 12:00 PM GMT.]

After deconfiguring the CEVIS (Cycle Ergometer with Vibration Isolation System) in the Lab to make room, Shannon performed Part 4 of WORF (Window Observational Research Facility) outfitting. CEVIS was later re-installed. [This was the final outfitting activity for WORF until it is handed over to the Payloads community for use. During today's task Shannon configured/adjusted the Bumpshield, Shutter Actuator Mechanism (SAM) and Air Knife for nominal operations, performed photo documentation, installed the WORF hatch and completed final closeouts. Background: WORF, which surrounds the 20 inch Lab science window, serves for attaching sensors (cameras, multispectral scanners, and other instruments). It provides attachment points and power & data transfer capability for instruments to be mounted in the window. Multiple instruments can be mounted at the same time. The rack is designed to allow rapid changes of equipment by the crew. WORF has a bracket for small cameras such as 35mm, 70mm and camcorders. Larger payloads requiring nonstandard attachment or additional instrument isolation must supply their own brackets or platforms which mount to the WORF using available attachment points. WORF also provides protection for the interior of the Lab window and can control stray light exchange between the Lab interior and the external station environment.]

In the US "Quest" A/L (Airlock), FE-4 Doug Wheelock terminated the recharge of the first batch of EVA batteries in the BSA (Battery Stowage Assembly) and initiated the second round.

Also in the A/L, Doug conducted the standard one-hour scrub of EMUs (Extravehicular Mobility Units) #3005 & #3009 cooling loops with their SCUs (Service & Cooling Umbilicals), filtering ionic & particulate matter (via a 3-micron filter), then reconfigured the cooling loops and started the ~2 hour biocide filtering. The activity included leak checking on the loops, with remedial actions to be taken if required. [Loop scrubbing, incl. iodination of the LCVGs (Liquid Cooling & Ventilation Garments) for biocidal maintenance is done to eliminate any biomass and particulate matter that may have accumulated in the loops.]

Additionally, Doug performed an inspection of the EVA BRTs (Body Restraint Tethers) to be used in US EVA-15.

SLAMMD Postponement:
Today's body mass measurement activities of Tracy Caldwell-Dyson, Doug Wheelock & Shannon Walker with the SLAMMD (Space Linear Acceleration Mass Measurement Device) BMM (Bode Mass Measurement) equipment were postponed due to a missing deceleration pad (of two required). [Background: SLAMMD, performed first on Expedition 12 in December 2005, provides an accurate means of determining the on-orbit mass of humans spanning the range from the 5th percentile Japanese female to the 95th percentile American male. The procedure, in accordance with Newton's 2nd Law of Motion, finds the mass by dividing force, generated by two springs inside the SLAMMD drawer, by acceleration measured with a precise optical instrument that detects the position versus time trajectory of the SLAMMD guide arm and a micro controller which collects the raw data and provides the precise timing. The final computation is done via portable laptop computer with SLAMMD unique software. To calculate their mass, crewmembers wrap their legs around a leg support assembly, align the stomach against a belly pad and either rest the head or chin on a head rest. For calibration, an 18 lbs mass is used at different lengths from the pivot point, to simulate different mass values. Crew mass range is from 90 to 240 lbs.]

SPDM Checkout Activities:
Today's operations have stopped. Robotics ground controllers have been operating the SPDM (Special Purpose Dexterous Manipulator) "Dextre" through a functionality & robotic maintenance demonstration program of grasping, unbolting, extracting, reseating & installing an RPCM (P11A). Yesterday's (Day 2) extraction step jammed the RPCM in its soft dock position due to an underestimated pulling force applied by metal spring finger gaskets used for EMI (Electromagnetic Interference) shielding (34 lbf instead of expected 20 lbf). A plan has been proposed to reattempt the operations later with and without FMA (Force/Moment Accommodation) or line tracking enabled. [Russian thrusters are disabled during SPDM operations.] The test extraction may be reattempted tomorrow (22/07), but a new date for the RPCM replacement has not been set.

---------- Post added 22nd Jul 2010 at 12:12 AM ---------- Previous post was 21st Jul 2010 at 11:03 PM ----------

Shannon Walker's 3rd Blog Post: "After two alarms, finally, I take a flight around the space station".

 

[tblaxland]

A plan has been proposed to reattempt the operations later with and without FMA (Force/Moment Accommodation) or line tracking enabled.

Read: "we are going to pull on it harder"

 

[Orbinaut Pete]

CSA: "Dextre's final exam postponed".

On July 20, 2010, Dextre was powered up and began conducting a "dress rehearsal" of its first official task on board the ISS. While working at the end of the SSRMS, Dextre's objective was to partially remove a failed circuit-breaker box (RPCM) by extracting it 15 cm, then putting it back into place. Dextre operated flawlessly during the test, but the RPCM was just not ready to make its debut. After several attempts to remove it, the RPCM could not be extracted by more than 5 cm. Flight controllers on the ground then instructed Dextre to put the RPCM back into place and reconnect it.

"We must remind ourselves that this was a rehearsal for a reason," says Pierre Jean, head of the ISS program at the Canadian Space Agency. "There could be many reasons why we saw yesterday's results but the good news is that we know from our data that Dextre executed his task perfectly."

Engineering teams will spend the next few days reviewing the data from the test to better understand why the RPCM could not be fully extracted and what changes may be required for future operations.

----------

Here's an overview of Russian EVA-25, set to begin on 27th July at 3:45 AM GMT.

---------- Post added 23rd Jul 2010 at 03:42 AM ---------- Previous post was 22nd Jul 2010 at 03:24 PM ----------

From ISS On-Orbit Status Report for 22/07/2010:

FE-6 Shannon Walker worked on the USOS OGS (Oxygen Generation System) to replace the failed H2 (Hydrogen) Dome ORU (Orbit Replacement Unit), followed by removing equipment which provided thermal compliance to allow closing the rack rear. After installing an older, sized pump, it did not start up, and the crew replaced it with the previously-installed pump. At the completion of the R&Rs (Removal & Replacements), ground controllers vented the H2 dome and began the vent line leak check and standby warm-up. Specialists expect the system to begin O2 (Oxygen) production later tonight. [The OGS suffered an unexpected "Fast Shutdown" on 05/07, probably due to blockage in several cells within the H2 ORU. Yesterday's Day 2 activities, by FE-2 Tracy Caldwell-Dyson, dealt with the forward and reverse flush delayed on Day 1 by an RPCM (Remote Power Controller Module) trip. The Dome repair should get OGS ready for activation.]

FE-3 Mikhail Kornienko & FE-5 Fyodor Yurchikhin continued their preparations for Russian EVA-25 in the Orlan spacesuits on 26/07 and the suited training exercise on 23/07. Specifically, Mikhail & Fyodor:
• Performed pressure checks on the portable O2 tanks (BK-3) and portable air repress bottles (BNP), including the additional BNP in DC-1 (Docking Compartment-1).
• Conducted BRTA (radio telemetry unit) checkouts for the Orlans & BSS interface units.
• Set up Orlan BRTK "Korona" comm. configuration, ran voice checks and tested medical parameter acquisition of the BETA-08 ECG (Electrocardiograph) harnesses with the "Gamma-1M" med complex from the PKO med. exam panel for vital signs & equipment monitoring.
• Installed US EMU (Extravehicular Mobility Unit) equipment (lights, wireless video camera) on the Orlan-M suits.
• Installed Orlan attached hardware (OTA) plus taking photos of the outfitted Orlans for downlink (OTA equipment includes: right-hand swing arm with tool caddy, small trash bag, wire ties, tethers, camera, wrench and cutters).
• Prepared auxiliary NASA equipment to be used in Orlan plus taking photos of the outfitted Orlans for downlink.
• Filled the DIDBs (Disposable In-suit Drink Bags) and installed them in the suits.
• Unstowed EVA emergency first-aid medical packs and stowed them in DC-1.
• Tested the proper function of the hatch Pressure Equalization Valve (PEV, Russian: KVD) from the POV panels in the SM (Service Module) PkhO (Transfer Compartment) and DC-1.

On Monday, a data dump was performed to test capability to send Russian data through the US-23 unit via US assets to TsUP-Moscow. The test was successful, but the Orlan wasn't activated at the time, so no Orlan data were included in the data stream. Today they repeated the data dump while the Orlan suits were activated allowing TsUP specialists to see real-time Orlan data on their displays for the first time through US assets. Preliminary results for this test were also nominal.

Joined by FE-4 Doug Wheelock, the designated IVA (Intravehicular Activity) crewmember, Mikhail & Fyodor spent about an hour reviewing the uplinked EVA (VKD) flight procedures material. Earlier, Mikhail & Fyodor reviewed special spacewalk procedures and discussed them with a VKD expert on the ground.

Continuing his preparations for US EVA-15 on 05/06, Doug:
• "Degassed" EMU PWR (Payload Water Reservoir) #1023.
• Topped off the water supply in EMUs #3005 (EV-1) & #3009 (EV-2) as well as in PWR #1023 and CWC (Contingency Water Container) #1059.
• Terminated recharge of the second round of EVA batteries in the BSA (Battery Stowage Assembly).
• Readied & checked out three PGTs (Pistol Grip Tools), including installing battery #1004 in PGT #04, battery #1006 in PGT #06, and battery #1008 in PGT #01.

Conjunction Alert:
Flight controllers are tracking a conjunction with a piece of a Chinese satellite. The TCA (Time of Closest Approach) is tomorrow (23/07) at 10:09 PM GMT. A valid PC (Probability of Collision) number was expected at ~4:00 PM GMT today. This debris is being tracked as a medium concern.

 

[SiberianTiger]

Conjunction Alert:
Flight controllers are tracking a conjunction with a piece of a Chinese satellite. The TCA (Time of Closest Approach) is tomorrow (23/07) at 10:09 PM GMT. A valid PC (Probability of Collision) number was expected at ~4:00 PM GMT today. This debris is being tracked as a medium concern.

Russian radio Mayak just announced that collision probability was deemed to high this time. They report MCC-M is preparing for avoidance manoeuvre.

---------- Post added at 16:17 ---------- Previous post was at 15:35 ----------

A guy from MCC-M just reported that no time is left for manoeuvre planning. After further assessment, the crew may be commanded to scramble for Soyuz capsules.

 

[Kyle]

Is this a serious situation?

Orbiter

 

[SiberianTiger]

Is this a serious situation?

Probably yes, but it still may miss with quite a gap.

Latest conjunction time prediction: 19:06:02.42 UTC.

 

[Kyle]

There is nothing on NASA TV, NASAspaceflight.com, or the American Media about it yet. When would they jump into the Soyuz?

 

[SiberianTiger]

When would they jump into the Soyuz?

Last time (3/13/2009) they did so at 10 minutes before the predicted conjunction time.

 

[Orbinaut Pete]

Last time (3/13/2009) they did so at 10 minutes before the predicted conjunction time.

I believe NASA has now signed a deal with Roscosmos that specifies a time that the Soyuz/ISS hatches should be closed before the conjunction. I remember there was some controversy last year when Russia wanted to wait until 2 minutes before the conjunction to close the hatches, although the entire hatch closing procedure takes 3 minutes.

On another note, what kind of "object" is this? You can never be too sure with the Chinese! :lol:

 

[SiberianTiger]

On another note, what kind of "object" is this? You can never be too sure with the Chinese! :lol:

Something incoming at relative angle 105.7 degress and having radar cross section 0.051 m^2 (in other words, a football sized thing).

 

[Orbinaut Pete]

Something incoming at relative angle 105.7 degress and having radar cross section 0.051 m^2 (in other words, a football sized thing).

Hmm. It's too small to be a rocket stage or a satellite, but it's too big to be a piece of breakaway junk.... :hmm:

Wait, I know what it is! It's ! :rofl:

 

[orb]

Hmm. It's too small to be a rocket stage or a satellite, but it's too big to be a piece of breakaway junk.... :hmm:

Maybe this thing isn't Chinese, but South African, and somebody kicked it on orbit during the World Cup. :lol:

 

[SiberianTiger]

Maybe this thing isn't Chinese, but South African, and somebody kicked it on orbit during the World Cup. :lol:

A vuvuzela? :rofl:

 

[Orbinaut Pete]

Florida Today's "The Flame Trench" Blog: "Cosmonauts Complete Dress Rehearsal For Spacewalk Monday".

---------- Post added at 10:20 PM ---------- Previous post was at 06:35 PM ----------

Physorg: "Destroyed Chinese satellite close to ISS: official".

---------- Post added at 11:34 PM ---------- Previous post was at 10:20 PM ----------

From ISS On-Orbit Status Report for 23/07/2010:

After yesterday's completion of all Orlan-MK suit preparations, Russian EVA-25 dry-run activities began today with FE-3 Mikhail Kornienko tearing down and removing the air ducts between the SM (Service Module) PkhO (Transfer Compartment) and DC-1 (Docking Compartment-1), including their V3 ventilation fan, to make room for the subsequent suited exercise.

At the same time, FE-4 Fyodor Yurchikhin worked on configuring the STTS communications systems in DC-1 for the exercise. [The suited run requires wireless Tranzit-B suit radio telemetry on both semi-sets and temporary deactivation of the Russian VHF (Very High Frequency, Russian: UKV1, for ultra-shortwave) channel 1 to avoid interference from extraneous radio stations to the Orlans while over Russian Ground Stations (RGS, DO 3). All EVA preps were monitored by the ground via audio. Tranzit-B TM was turned off after the checkout.]

After another functionality & leak check of the Orlan-MK suits, their equipment and their BSS interface units in DC-1 & SM PkhO, the crewmembers began donning EVA gear, i.e., putting on personal gear bags, biomed harness, thermal underwear, LCG (Liquid Cooling Garment), low-noise headset, gloves, etc.

After more checkouts of comm. hookups & biomedical parameter telemetry via the BSS Orlan interface system for vital signs & equipment monitoring, suiting up then culminated in ingress in the Orlans through their "backdoors" and sealing off of the backpacks.

Next in line were:
• More functionality checkouts of the suits and their BSS controls (e.g., temperature control handling, water cooling system ops, preliminary Orlan & BSS leak checks).
• Preliminary dimensional suit fit checks at reduced suit pressure of 0.4 atm (5.9 psi).
• About an hour of testing/training of suited mobility & translation inside DC-1.
[These "intramural" exercises included translation to all DC-1 work stations with mated fluid umbilical, assessment of how the interior DC-1 config. impacts operations with various gear & accessories such as the POV (EVA support panel) and BSS, moving the BRT (Body Restraint Tether) with a CLB (Crew Lock Bag) and securing the BRT on a handrail, retrieving the Kodak 760 camera from the KPU tool carrier and stowing it temporarily on the OTA swing arm, etc.]

Mikhail & Fyodor's egress from their Orlan-MKs was followed by restoration of comm. settings in DC-1 to nominal ops. and post-training close-out activities, including air duct assembly.

CDR Alexander Skvortsov installed a rigid air duct in the hatch between MRM-1 & the FGB.

FE-2 Tracy Caldwell-Dyson, FE-6 Shannon Walker & FE-4 Doug Wheelock got together for a joint 2.5 hour review of the upcoming US EVA-15 on 05/08, followed by a teleconference on spacewalk details with ground specialists via S-band and Ku-band.

OGS Update:
The USOS OGS (Oxygen Generation System) has been successfully activated and is producing O2 (Oxygen) at 100%.

Conjunction Update:
The conjunction with Object 29729 (debris of Chinese satellite FENGYUN 1C) has dropped to a very low PoC (Probability of Collision). Planning for a DAM (Debris Avoidance Maneuver) has been cancelled.

Russian EVA-25 Overview:
DC-1 is prime A/L (Airlock), SM PkhO is backup A/L.
EV Crew:
• EV-1 – Fyodor Yurchikhin, Orlan-MK #4.
• EV-2 – Mikhail Kornienko, Orlan-MK #6.
Timeline:
• Wakeup: 26/07 @ 6:40 PM GMT (sleep shifted 12 hours 40 minutes).
• DC-1 hatch open: 27/07 @ 3:45 AM GMT.
• Repress: 27/07 @ 9:45 AM GMT.
• Sleep: 27/07 @ 3:00 PM GMT.
EVA Objectives (total 6 hours):
• SM ATV (Automated Transfer Vehicle) docking camera R&R (Removal & Replacement).
• MRM-1 C&DH (Command & Data Handling) & Kurs-P external cable routing.
• Jettison old SM ATV docking camera and empty cable reels.
IV Crew:
• Soyuz TMA-18/22S crew (Alexander & Tracy) isolated in MRM-2 (22S is docked to MRM-2).
• Soyuz TMA-19/23S crew (Doug & Shannon) in FGB & USOS (23S is docked to MRM-1).

---------- Post added 24th Jul 2010 at 02:00 PM ---------- Previous post was 23rd Jul 2010 at 11:34 PM ----------

NASA: "Commercial Facility Activated on US National Laboratory Onboard International Space Station".

Visit the NanoRacks website for more info!

 

[Izack]

Disaster averted! No vuvuzelas or Chinese footballs for the ISS! :lol:

Well, probably... :shifty:

 

[Orbinaut Pete]

Russian EVA-25 Briefing Graphics:

---------- Post added 26th Jul 2010 at 06:22 PM ---------- Previous post was 25th Jul 2010 at 10:14 PM ----------

NASA: "NASA Astronaut Sends First Signed Message from Orbit".

SPACE.com: "Astronaut Makes 1st Sign Language Address from Space Station".


Spaceflight Now: "Overnight spacewalk coming up for station cosmonauts".

SPACE.com: "Russian Cosmonauts to Take Spacewalk".

---------- Post added 27th Jul 2010 at 02:46 AM ---------- Previous post was 26th Jul 2010 at 06:22 PM ----------

From ISS On-Orbit Status Report for 26/07/2010:

Shifted crew day/night cycle:
Due to tonight's Russian EVA-25, the wake-up time of the station residents has been shifted by 12 hours 40 minutes to 6:40 PM GMT.
Sleep = tomorrow (27/07) at 3:00 PM GMT.

For tonight's EVA, CDR Alexander Skvortsov in the course of the day:
• Set up the MPEG-2 video transmission system on Ku-band.
• Monitored the TV signal on the SSC-1 (Space Station Computer-1) laptop during the subsequent MPEG-2 transmission test (Ku-band) with the ground.
• Prepared MRM-2 & Soyuz TMA-18/22S for the EVA.
• Supported ground-commanded close-down of the Elektron O2 (Oxygen) generator by performing the regular N2 (Nitrogen) purge.
• Removed the ventilation air ducts from DC-1 (skip B3 fan removal) and MRM-2.
• Conducted other routine pre-EVA ISS onboard systems configuration, e.g., closing SM window shutters for protection.
• Started with FE-2 Tracy Caldwell-Dyson the isolation period in MRM-2 during the EVA.

On her part, Tracy joined Alexander in MRM-2, where she:
• Had gathered CTBs (Cargo Transfer Bags) and required equipment for audit and reconfiguration.
• Collected fully-charged batteries from deployed SSCs, powered down SSC-18, and relocated batteries and SSC to MRM-2 for use during MRM-2 isolation.
• Configured her Pro K diet selection by organizing food items per crew preference for another Pro K session series.
• Reorganized the "battery pantry" CTB for easier crew use and audit.
• Reviewed the procedures and material of the ECWS (EMU Caution & Warning Simulator) OBT (Onboard Trainer).

FE-3 Mikhail Kornienko & FE-5 Fyodor Yurchikhin made final preparations for their EVA tonight by:
• Checking the EVA cameras by "test firing" them and transferred them to DC-1.
• Checking out the Orlan-M spacesuits and their systems, as well as the suit interface control panels (BSS) in DC-1 & SM PkhO (Transfer Compartment).
• Retesting the BK-3 primary & backup O2 tanks of the Orlans and DC-1.
• Disassembling the DC-1 air duct, but leaving the V3 fan in place.
• Setting up the STTS communications/telemetry links necessary for the EVA from DC-1, including switching over the caution & warning system from the regular PSS console to the EVA support panel (POV). [Most activities are paced by RGS (Russian Ground Site) comm. window passes].
• Testing the bio-medical parameter telemetry to RGS, including VHF (Very High Frequency)/voice & biomedical electrode belt and *telemetry hookups via the BSS (later by the wireless in-suit Tranzit-B radio telemetry system) for vital signs and equipment monitoring.

EVA-25 will begin tomorrow (27/07) morning at ~3:45 AM GMT.

 

[Orbinaut Pete]

From Doug Wheelock via Twitter - Fyodor Yurchikhin & Mikhail Kornienko with their Orlan spacesuits in DC-1.

 

[Orbinaut Pete]

The EV crew is suited up & the hatches between DC-1 & the SM PkhO (Transfer Compartment), and the SM PkHO & the SM/FGB/MRM-2 have been closed.

All solar arrays have been latched in place & attitude control has been handed over from USOS CMGs to RS thrusters.

The EV crew is now starting DC-1 & SM PkhO depressurization procedures.

Here's SPACE.com's live EVA updates.

---------- Post added at 01:23 PM ---------- Previous post was at 04:27 AM ----------

EVA-25 has been completed and all objectives were successfully accomplished! :thumbup:

Spaceflight Now: "Spacewalkers complete overnight excursion".

SPACE.com: "Despite Losing Tools, Cosmonauts Complete Spacewalk".


Russia Today: "ISS marks 10 years in space".

---------- Post added at 03:13 PM ---------- Previous post was at 01:23 PM ----------

Here's a short video clip from the EVA - it's a shame the spacewalkers weren't wearing helmet cams. ​

[ame="http://www.youtube.com/watch?v=D5I-G7DJ7H8"]YouTube- ISS July 26,2010: Russian EVA-25[/ame]

The full EVA video can be downloaded from here.

A shorter EVA highlightes video can be download from here.

 

[johan]

Disaster averted! No vuvuzelas or Chinese footballs for the ISS! :lol:

Well, probably... :shifty:

Hahaha! You guys are funny...

 

[Orbinaut Pete]

Via collectSPACE: Today's spacewalkers wore Expedition 24 patches adapted especially for EVA-25.