STS-127 (ISS assembly flight 2J/A) was a NASA Space Shuttle mission to the International Space Station (ISS). It was the twenty-third flight of Space Shuttle Endeavour. The primary purpose of the STS-127 mission was to deliver and install the final two components of the Japanese Experiment Module: the Exposed Facility (JEM EF), and the Exposed Section of the Experiment Logistics Module (ELM-ES).[NASA 1] When Endeavour docked with the ISS on this mission in July 2009, it set a record for the most humans in space at the same time in the same vehicle, the first time thirteen people have been at the station at the same time. It also tied the record of thirteen people in space at any one time.
Endeavour as seen from ISS before docking. Payload including JEF and ICC-VLD visible in the shuttle bay
|Mission type||ISS assembly|
|Mission duration||15 days, 16 hours, 44 minutes, 58 seconds|
|Distance travelled||10,537,748 kilometres (6,547,853 mi)|
|Spacecraft||Space Shuttle Endeavour|
|Members||Mark L. Polansky|
Douglas G. Hurley
Christopher J. Cassidy
Thomas H. Marshburn
|Start of mission|
|Launch date||15 July 2009, 22:03UTC|
|Launch site||Kennedy LC-39A|
|End of mission|
|Landing date||31 July 2009, 14:48UTC|
|Landing site||Kennedy SLF Runway 15|
|Perigee||344 kilometres (214 mi)|
|Apogee||351 kilometres (218 mi)|
|Epoch||18 July 2009|
|Docking with ISS|
|Docking date||17 July 2009, 17:47 UTC|
|Undocking date||28 July 2009, 17:26 UTC|
|Time docked||10 days, 23 hours, 41 minutes|
From left to right: Wolf, Cassidy, Hurley, Payette, Polansky, Marshburn, and Kopra
The first launch attempt, on 13 June 2009, was scrubbed due to a gaseous hydrogen leak observed during tanking. The Ground Umbilical Carrier Plate (GUCP) on the external fuel tank experienced a potentially hazardous hydrogen gas leak similar to the fault that delayed the Space Shuttle Discovery mission STS-119 in March 2009. Since a launch date of 18 June 2009 would have conflicted with the launch of the Lunar Reconnaissance Orbiter (LRO)/Lunar Crater Observation and Sensing Satellite (LCROSS), NASA managers discussed the scheduling conflict with both the Lunar Reconnaissance Orbiter project and the Air Force Eastern Range, which provides tracking support for rockets launched from Florida. A decision was made to allow the shuttle to attempt a second launch on 17 June 2009, allowing LRO to launch on 18 June 2009.
The second launch attempt on 17 June 2009 was also scrubbed due to hydrogen leak issues seen from the Ground Umbilical Carrier Plate. Due to conflicts with the launch of the LRO, and due to a beta angle constraint, the next available launch opportunity was scheduled for 11 July 2009.[NASA 2] A successful tanking test for leak checks was performed on 1 July 2009, with modified GUCP seals allowing launch preparations to proceed as scheduled. Because of lightning strikes near the launch pad during the evening of 10 July 2009, NASA scrubbed the launch for the third time and rescheduled for 12 July 2009. Due to a Return To Launch Site (RTLS) weather violation, NASA scrubbed the launch for the fourth time on the evening of 12 July 2009.
STS-127's fifth launch attempt, on 13 July 2009, was also scrubbed due to anvil clouds and lightning within 10 nautical miles (19 km) of the launch site, which violated launch safety rules. STS-127 finally launched successfully on its sixth launch attempt, on 15 July 2009 at 18:03 EDT. Pieces of foam were observed falling off of the External Tank during the ascent, the same occurrence that had led to the loss of Columbia in 2003. However, Endeavour received only minor scuffs to its heat shield, the damage not enough to cause concern over reentry. The shuttle landed at Kennedy Space Center 16 days later at 10:48 EDT on 31 July 2009.
|Position[NASA 1][NASA 3]||Launching Astronaut||Landing Astronaut|
|Commander|| Mark L. Polansky|
Third and last spaceflight
|Pilot|| Douglas G. Hurley|
|Mission Specialist 1|| Christopher J. Cassidy|
|Mission Specialist 2|| Julie Payette, CSA|
Second and last spaceflight
|Mission Specialist 3|| Thomas H. Marshburn|
|Mission Specialist 4|| David Wolf|
Fourth and last spaceflight
|Mission Specialist 5|| Timothy Kopra
| Koichi Wakata, JAXA|
|STS-127 marked the first time that two Canadian astronauts, Robert Thirsk and Julie Payette, were in space at the same time.|
Endeavour carried a wide variety of equipment and cargo in the payload bay, with the largest item being the Kibo Japanese Experiment Module Exposed Facility (JEM EF), and the Kibo Japanese Experiment Logistics Module – Exposed Section (ELM-ES).[NASA 1] The exposed facility is a part of Kibo that will allow astronauts to perform science experiments that are exposed to the vacuum of space. The exposed section is similar to the logistics module on the Kibo laboratory, but is not pressurized.[NASA 1] Once its payloads were transferred to the JEM EF, the ELM-ES was returned to the payload bay.
Also inside the payload bay was an Integrated Cargo Carrier-Vertical Light Deployable (ICC-VLD), containing a variety of equipment and spare components for the station. The carrier contained six new batteries for installation on the P6 truss, that was installed during two of the mission's spacewalks, as well as a spare space-to-ground antenna and a spare linear drive unit and pump module which was stored on an external stowage platform on the station's truss during one of the spacewalks.[NASA 1]
Two satellites were also carried by the orbiter, for deployment when the mission ended. The Dual Autonomous Global Positioning System On-Orbit Navigator Satellite, called DRAGONSAT, gathers data on autonomous spacecraft rendezvous and docking capabilities, and consists of two picosatellites, the AggieSat2, and PARADIGM (BEVO-1), which acquire GPS data from a device at NASA and send it to ground stations at Texas A&M University and the University of Texas at Austin.[NASA 1] After release, the two picosatellites remained attached for two orbits to collect GPS data, and separated during the third orbit.[NASA 1]
A second satellite, the Atmospheric Neutral Density Experiment (ANDE-2), is part of a United States Department of Defense project flown by the Naval Research Laboratory to provide high-quality satellites, and will measure the density and composition of the low Earth orbit atmosphere while being tracked from the ground, to better predict the movement and decay of objects in orbit.[NASA 1][NASA 4] ANDE-2 consists of two spherical microsatellites, ANDE Active spacecraft (Castor) and the ANDE Passive spacecraft (Pollux), and will be tracked by the International Laser Ranging Service (ILRS) network as well as the Space Surveillance Network (SSN).[NASA 1][NASA 4] One of the satellites, Pollux, is running Arduino libraries, with its payload programmed and built by students.
A set of experiments to be deployed on the ISS were carried by STS-127, namely Dosimetry for Biological Experiments in Space (ESA), Validation of Procedures for Monitoring Crew Member Immune Function, the student-made Image Reversal in Space (CSA/ISU), Nutritional Status Assessment (NASA), NASA Biological Specimen Repository and Tomatosphere-II (CSA).[NASA 1]
The STS-127 Official Flight Kit (OFK) included water samples from each of the five Great Lakes, a resin statue of a water droplet for the One Drop Foundation, and a copy of Beethoven's Fifth Symphony for the Montreal Symphony Orchestra, among other mementos.
The docking module was also mounted with the DragonEye 3D Flash LIDAR ranging system manufactured by Advanced Scientific Concepts, Inc.. The module was launched to test the docking system which will be used by the commercial SpaceX Dragon re-usable cargo carrier to send supplies to the ISS during the post-shuttle era. The Dragon spacecraft made its successful maiden flight in December 2010.
|Bays 1–2||Orbiter Docking System
EMU 3003 / EMU 3018
SpaceX DragonEye LIDAR
|1,800 kilograms (4,000 lb) |
~260 kilograms (570 lb)
|Bay 3P||Shuttle Power
Distribution Unit (SPDU)
|~17 kilograms (37 lb)|
|51 kilograms (112 lb) |
|Bays 4–7||Kibo JEM Exposed Facility||3,820 kilograms (8,420 lb)|
|Bay 5P||APC/ECSH||~33 kilograms (73 lb)|
|Bay 5S||APC/PPSU||20 kilograms (44 lb)|
|Bay 6S||APC/PPSU||20 kilograms (44 lb)|
|Bays 8–9||Kibo ELM Exposed Section||2,453 kilograms (5,408 lb)|
|Bay 11||ICC-VLD||3,946 kilograms (8,699 lb)|
|Bay 13P||APC/ECSH||~33 kilograms (73 lb)|
ANDE Active satellite
ANDE Passive satellite
|265 kilograms (584 lb) |
54 kilograms (119 lb)
50 kilograms (110 lb)
25 kilograms (55 lb)
|Starboard Sill||Orbiter Boom Sensor System||~382 kilograms (842 lb)|
|Port Sill||Canadarm||410 kilograms (900 lb)|
|Total:||13,645 kilograms (30,082 lb)|
The mission marked:
Endeavour served as the STS-400 rescue vehicle for STS-125, and was prepared for a possible liftoff from Launch Pad 39B on 15 May 2009, four days after the launch of STS-125.[NASA 5][NASA 6] After Atlantis performed the late inspection and was cleared for re-entry, Endeavour was officially released from stand-by status on 21 May 2009, and preparations for STS-127 were initiated.
Endeavour moved from Launch Pad 39B to 39A on 31 May 2009 in preparation for STS-127.[NASA 7] The crew of STS-127 arrived at Kennedy Space Center on 2 June 2009, for the Terminal Countdown Demonstration Test (TCDT) that concluded with a full launch dress rehearsal.[NASA 7][non-primary source needed] The Flight Readiness Review (FRR), a meeting during which NASA managers assess mission preparations and officially set the launch date, concluded on 3 June 2009.[NASA 8] For the first time, live status updates about the FRR were published periodically during the meeting via NASA's Twitter stream.[NASA 8]
The launch countdown began 10 June 2009, but on 13 June 2009, as tanking was underway, a gaseous hydrogen leak on a vent line near the Ground Umbilical Carrier Plate was observed, and the 13 June 2009 launch was scrubbed at 00:26 EDT. As liquid hydrogen fuel is pumped in, some of it boils off as the extremely cold liquid enters the warm external tank. The vent line valve controls the resulting buildup of gas pressure by allowing excess gas to escape into a ground-side vent line, which leads to a flare stack at a safe distance away from the pad. A similar leak situation was seen during the first launch attempt of STS-119. NASA managers met on 14 June 2009 and 15 June 2009 and evaluated the leak, discussed steps that had to be taken, and set a new launch date of 17 June 2009, at 05:40 EDT.
A second launch attempt was made on 17 June 2009 for which NASA moved the planned launch of the Lunar Reconnaissance Orbiter to a new date. On 17 June 2009 loading of the shuttle's external tank with liquid hydrogen and liquid oxygen was delayed three hours due to poor weather around the launch site, but tanking began once the weather cleared. Approximately two hours after tanking began, engineers saw leak indications in the GUCP similar to those seen during the first launch attempt. The launch was officially scrubbed at 01:55 EDT.
Following the launch scrub, Chairman of NASA's Mission Management Team LeRoy Cain noted that engineers would work to understand the hydrogen leak issue and come up with a solution to the problem. Cain said managers were hopeful that the issue could be resolved in time for the next available launch opportunity on 11 July 2009. Due to the delay of STS-127, managers noted that it was likely that the launch of STS-128 on 7 August 2009, would be pushed back slightly.
On 1 July 2009, the shuttle managers conducted a new series of tanking tests to confirm a hypothesis that a misaligned vent port housing was the root cause of the leaks. The existing rigid seal was replaced with a flexible one in the hope that it would maintain a tight fix even under the cryogenic conditions that seem to cause the leak. The test was declared a success with no leaks detected on the GUCP. The mission was announced to be targeting an 11 July 2009 launch. On the evening of 10 July 2009 the launch pad region was hit by eleven strikes of lightning, which pushed back the 11 July 2009 launch time by at least 24 hours. Two of the strikes were strong enough to trigger an evaluation by NASA engineers. The inspections revealed that no damage had been done to the space shuttle.[NASA 9]
NASA scrubbed Endeavour' 12 July 2009 launch attempt at T-minus 9 minutes and holding due to Cumulus clouds and lightning near the launch pad. During the final Go/No-Go polls, Mission Control in Houston declared a "No-Go" due to unacceptable weather forecast for a possible Return-To-Launch-Site (RTLS) abort, and planned for emergency scenarios when one or more engines shut down early leaving insufficient energy to reach the Transatlantic Abort Landing (TAL) sites. Similarly, during the 13 July 2009 attempt, RTLS weather was also "no go." Meanwhile, shuttle weather officer Kathy Winters informed the launch director, Pete Nickolenko, that the launch pad weather had changed to RED as the Phase-1 Lightning warning was issued for the Kennedy Space Center. The launch was scrubbed at T-minus 9 minutes and holding and was quickly reset for 15 July 2009 (a 48 hours scrub turn around) due to weather concerns on 14 July 2009 and the desire to replace the Tyvek covers over the forward Reaction Control System thrusters.[NASA 10]
|Attempt||Planned||Result||Turnaround||Reason||Decision point||Weather go (%)||Notes|
|1||13 Jun 2009, 7:17:19 am||scrubbed||—||technical||13 Jun 2009, 12:26 am||90%||gaseous hydrogen leak on a vent line near the Ground Umbilical Carrier Plate|
|2||17 Jun 2009, 5:40:52 am||scrubbed||3 days, 22 hours, 24 minutes||technical||17 Jun 2009, 1:55 am||80%||leak persisted|
|3||11 Jul 2009, 7:39:38 pm||scrubbed||24 days, 13 hours, 59 minutes||weather||40%||lightning strikes to launch pad|
|4||12 Jul 2009, 7:13:55 pm||scrubbed||0 days, 23 hours, 34 minutes||weather||(T– 9:00 hold)||70%||RTLS concerns, cumulus clouds and lightning near launch pad[NASA 9]|
|5||13 Jul 2009, 6:51:24 pm||scrubbed||0 days, 23 hours, 37 minutes||weather||(T– 9:00 hold)||40%||Phase-1 Lightning warning at the launch site[NASA 10]|
|6||15 Jul 2009, 6:03:10 pm||success||1 day, 23 hours, 12 minutes||60%|
15 July (Flight Day 1, Launch)Edit
On 15 July 2009 at 18:03:10 EDT, the launch was finally successful. Upon reviewing the launch video footage, imagery analysts noted eight or nine instances of foam shedding from the External Tank. The pictures of the external tank taken when jettisoning showed loss of foam in the intertank ribbing. The chairman of the Mission Management Team was not concerned and felt that the Space Shuttle would be cleared for re-entry on its return voyage—which it was a few days later.[NASA 11] The payload doors were opened after reaching orbit followed by deployment of the Ku band antenna and activation of the shuttle's mechanical arm.
16 July (Flight Day 2)Edit
The thermal protection system was inspected with the Shuttle Robotic Arm/Orbiter Boom Sensor System (OBSS) and the voluminous data downlinked for analysis. The orbital maneuvering system pods were inspected for tile damage or protruding tiles. The extravehicular mobility units were checked in addition to the rendezvous system tests and centerline camera installation. In preparation for the docking, the docking ring was extended.[NASA 12]
17 July (Flight Day 3, ISS Docking)Edit
The shuttle successfully docked with the station 220 miles (350 km) above the Earth, following rendezvous pitch maneuver (RPM) photography of Endeavour's thermal protection system by the Expedition 20 Crew. During this procedure, the shuttle flips over on its back to the station so that the station crew can capture high resolution imagery of the underside of the shuttle. The docking happened on the ISS's PMA-2 (Pressurized Mating Adapter) on the Harmony module and the hatch was opened after leak checks. As part of the crew swap, station crew member Koichi Wakata was replaced with Tim Kopra. The two astronauts specially fitted seatliners were interchanged.[NASA 13] As part of preparation for EVA 1, astronauts Wolf and Kopra camped out in the Quest airlock. A quick review of the RPM imagery showed no serious concerns beyond two instances of coating loss. Further analysis of the imagery will be done. A boost of the station was completed with the shuttle's vernier thrusters to avoid a piece of space debris. The SRBs were retrieved and their camera imagery is expected to give more detail on the ET foam shedding.
18 July (Flight Day 4, EVA 1)Edit
EVA 1 started with astronauts Dave Wolf and Tim Kopra switching their spacesuit power to internal battery at 16:19 UTC. Despite a communication problem with the spacewalkers, the Japanese Exposed Facility was successfully installed on the Japanese Experiment Module by means of a complex series of steps involving the robotic arms of both the station and the shuttle.[NASA 14] The JEF was first unberthed from the shuttle payload bay by the station arm, after which the shuttle arm took the load. The station arm was then moved to the worksite on Node-2 (Harmony), wherefrom it took the 4.1 ton facility back. The facility was then successfully latched on to the Experiment Module. As part of the EVA, the spacewalkers successfully deployed the port Unpressurized Cargo Carrier Attach System (UCCAS), which could not be deployed during STS-119. During the prior mission, the deployment failed due to a jamming caused by a stuck detent pin. Engineers designed a custom tool to force the pin to release, which was used to deploy the mechanism. Meanwhile, the shuttle managers announced that there would be no need for a focused inspection of the heat shield. The nose cap and wing leading-edge panels of the shuttle were cleared for entry as they were, but a reentry clearance was not given.[NASA 14] Beyond one impact site having a gouge, the rest of the impacts were found to be mostly a loss of coating. The other activity scheduled for EVA 1, the deployment of a starboard side cargo carrier, was postponed for want of time. A fuel cell issue found before launch was analyzed, though the cell continued to function as expected with no impact to the mission.
19 July (Flight Day 5)Edit
The installation of the Integrated Cargo Carrier-Vertical Light Deployable (ICC-VLD) on the port side of the station was successfully completed with the use of both the shuttle and station robotic arms. The cargo pallet, containing spares and fresh batteries for the station, was lifted out of the shuttle bay by the shuttle arm and handed off to the station's Canadarm2, which maneuvered it to its position. The pallet's contents will be set up in upcoming EVAs. A malfunction in a new toilet in the Destiny laboratory caused the crew to use the one in the Russian segment while attempts were made to identify the fault. Meanwhile, the shuttle was cleared for reentry.[NASA 15]
20 July (Flight Day 6, EVA 2)Edit
Astronauts Wolf and Marshburn began EVA 2 at 15:27 UTC out of the Quest airlock. The EVA was to transfer the spare components brought by the shuttle from the ICC-VLD to External Stowage Platform-3. The spares were handled by Wolf riding the station's robotic arm to the P3 truss stowage platform where he and Marshburn attached them for long term storage. The purpose of the spares was to provide redundancy to the station in the period following the shuttle's retirement. The spares unloaded include a Ku-Band Space-to-Ground antenna, a pump module for the coolant system and a drive unit for the station's robotic arm's mobile transporter. A planned installation of a camera on the Japanese Experiment Facility was postponed to a future EVA for want of time. Meanwhile, the malfunctioning toilet was set right with the replacement of internal parts and cleared for normal use after tests.[NASA 16]
21 July (Flight Day 7)Edit
In one of the more relaxed days, the Japanese logistics carrier was attached to the Japanese Exposed Facility. The cargo pallet was unberthed from the shuttle by the shuttle's robotic arm and handed to the station's robotic arm which then soft fixed it temporarily to the facility. After the experiments, containing an X-ray astronomy payload, a space environment monitor and a communications system, are installed the pallet will be returned to Earth by the shuttle.[NASA 17]
22 July (Flight Day 8, EVA 3)Edit
The spacewalk involving astronauts Wolf and Cassidy started at 14:32 UTC. As part of preparation for experiment installation on the Japanese external science deck, Cassidy removed the thermal covers off the experiment carrier. Meanwhile, Wolf removed obstructions, consisting of a handrail and an equipment installation socket, from the Harmony node to clear the way for an upcoming Japanese automated resupply ship. The other task for EVA 3, involving replacement of four of the six batteries in the P6 truss, did not go as planned. Each 375 pound battery was to be removed and placed in a temporary stowage platform while a new one is taken from the ICC-VLD and fixed. The old ones will be returned to Earth. When two new batteries had been installed and three old ones removed, the CO
2 levels in Cassidy's suit showed an upward trend. Even though it never exceeded the safety limits, the EVA was called off with both astronauts returning into the station. This left one old battery in a temporary flexible stowage position. The rest of the batteries will be installed in a future EVA with the rest of the EVAs being under replanning.[NASA 18]
23 July (Flight Day 9)Edit
The Kibo robotic arm was inaugurated operationally with it being used to install experiments on to the Japanese exposed facility. The three experiments, transferred from the Japanese cargo pallet, consisted of Monitor of All-sky X-ray Image, Inter-orbit Communication System and Space Environment Data Acquisition Equipment-Attached Payload. As per the revised plan for EVA 4 astronauts Cassidy and Marshburn will replace the remaining four batteries on P6 and complete the already deferred installation of a camera on the Japanese experiment facility.[NASA 19][NASA 20]
24 July (Flight Day 10, EVA 4)Edit
The fourth spacewalk, by Cassidy and Marshburn, involved replacement of the final four of the six batteries on P6 truss integrated electronics assembly. After berthing the old batteries in the ICC-VLD, the cargo pallet was returned to the Endeavour's payload bay by the shuttle's robotic arm. The elevated levels of CO
2 in Cassidy's suit during EVA 3 was attributed to the astronaut working at a fast pace.[NASA 21]
25 July (Flight Day 11)Edit
26 July (Flight Day 12)Edit
The Japanese Exposed Section cargo carrier was berthed in Endeavour's payload bay by the shuttle's robotic arm after it was handed the pallet by the station's robotic arm. After this the crew of both the station and the shuttle held a joint news conference. Meanwhile, the malfunctioning American CO
2 removal system has been transitioned to manual mode in order to keep it running.[NASA 23]
27 July (Flight Day 13, EVA 5)Edit
Cassidy and Marshburn started EVA 5 at 11:33 UTC when they switched their suit power to internal battery. For this spacewalk, the CO
2 absorbent system in the suits were changed from Lithium Hydroxide to METOX due to problems with Cassidy's usage. Cassidy completed the reconfiguring of power channels in the Zenith 1 patch panel which are used for the control moment gyroscopes. Before the rewiring, two of the gyroscopes were fed by the same power channel. Since a failure of the channel can knock down two gyros and put the station in a degraded position the reconfiguration was made necessary. This rewiring made the two gyros to operate from separate power channels. Meanwhile, Marshburn secured some multi-layered insulation on the Dextre. Later both the spacewalkers installed video cameras on the front and back of the Japanese exposed facility which will be used in dockings of the Japanese cargo crafts and normal operation. The cameras flew up in launch configuration and now have been installed in an operational configuration, thus completing the JEF assembly. Meanwhile, due to Cassidy's METOX limitation, the deployment of the PAS was deferred to a future spacewalk. Instead some get ahead tasks were completed which included installation of handrails and a portable foot restraint.[NASA 24]
28 July (Flight Day 14, ISS Undocking)Edit
After a crew farewell Endeavour undocked from the ISS at 17:26 UTC. Unlike most other launches, hatch closure, which happened at 15:08 UTC, and undocking happened on the same day due to the extended delay in launching and the arrival of the Progress 34 cargo craft. After undocking Hurley began a fly around of the station giving the shuttle crew an opportunity to photograph the station's current configuration in all directions. Then a final separation burn was completed at 3:09 pm EDT.[NASA 25]
29 July (Flight Day 15)Edit
The OBSS was grappled by the shuttle's robotic arm and used to inspect Endeavour's thermal protection system for damage from orbital debris. The imagery will be analyzed to clear the shuttle for reentry.[NASA 26] Meanwhile, the foam loss on the external tank was initially attributed to substrate contamination ahead of the application of the foam. Later during the processing of STS-128, voids in the foam was highlighted as a trigger for the shedding. The air trapped in the voids could have expanded due to the high temperatures generated during ascent thus breaking the foam.
30 July (Flight Day 16)Edit
The crew checked out the shuttle's systems for the landing, and successfully deployed the DRAGONSat and ANDE-2 satellites. The shuttle was cleared for reentry, with the TPS imagery showing no concerns.[NASA 27] The shuttle tracked two chances of landing at KSC on 31 July, and could land no later due to its limited carbon dioxide-scrubbing LiOH supply.
31 July (Flight Day 17, Landing)Edit
After a 16-day mission, Endeavour landed successfully at Kennedy Space Center at 10:48 EDT on 31 July 2009. The landing had to be undertaken before 1 August, due to CO
2-scrubbing lithium hydroxide limitations. There were two opportunities to land on 31 July, of which the first was ultimately utilized.[NASA 28]
|EVA||Spacewalkers||Start (UTC)||End (UTC)||Duration|
|EVA 1||David A. Wolf
|18 July 2009
|18 July 2009
|5 hours, 32 minutes|
|JEF installed and P3 Nadir Unpressurized Cargo Carrier Attach System deployed. The S3 Zenith Outboard Payload Attachment System deployment was postponed due to time constraints.[NASA 1][NASA 14]|
Thomas H. Marshburn
|20 July 2009
|20 July 2009
|6 hours, 53 minutes|
|Transferred Orbital Replacement Units (ORUs) from the Shuttle Integrated Cargo Carrier (ICC) to the External Stowage Platform-3 (ESP3). Transferred materials included a spare high-gain antenna, cooling-system pump module and spare parts for the Mobile Servicing System. The JEF Visual Equipment (JEF-VE) installation on the forward section was postponed due to time constraints.[NASA 16]|
Christopher J. Cassidy
|22 July 2009
|22 July 2009
|5 hours, 59 minutes|
|JPM preparation work, ICS-EF MLI, and P6 battery replacement (2 of 6 units).[NASA 1] EVA was cut short due to high levels of CO|
2 in Cassidy's suit.[NASA 18]
|24 July 2009
|24 July 2009
|7 hours, 12 minutes|
|P6 battery replacement (final 4 of 6).[NASA 21]|
|27 July 2009
|27 July 2009
|4 hours, 54 minutes|
|SPDM thermal cover adjustment, Z1 patch panel reconfiguration, JEM visual equipment (JEM-VE) installation (forward and aft), and JEM-LTA reconfigurations. The S3 Nadir Payload Attachment System (outboard) deployment was postponed to a later mission.[NASA 24][NASA 29]|
NASA began a tradition of playing music to astronauts during the Gemini program, and first used music to wake up a flight crew during Apollo 15. Each track is specially chosen, often by the astronauts' families, and usually has a special meaning to an individual member of the crew, or is applicable to their daily activities.[NASA 30][NASA 31]
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