Author Topic: Expedition 29 thread (September 16 - November 22, 2011)  (Read 27149 times)

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Re: Expedition 29 thread (September 16 - November 22, 2011)
« Reply #60 on: 10/18/2011 04:24 PM »
More specified information from MCC-M about reboost of ISS orbit's on October 19: 16:15 UTC, dV = 1.8 m/s, dT = 113 s, dH = 3.1 km.

Offline Space Pete

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On the Move: Robonaut 2 Makes First Motions on International Space Station
 
There’s a humanoid robot moving aboard the International Space Station. Expedition 29 Commander Mike Fossum successfully put Robonaut 2 through its first paces involving motion on Oct. 13.

The milestone checkout had Robonaut 2 move its arm joints for the first time in microgravity. Until now, Robonaut tasks have been confined to 1G operations here on Earth, but this checkout provided the necessary insight into developing microgravity-based tasks to assist station crews. Robonaut’s motions are controlled by a set of software parameters which have to be adjusted for the differences between operating on Earth and in space. Essentially, the robot has to learn how to operate in its new weightless environment.

"Robonaut performed a series of motions that allowed it to stretch out and adaptively learn the differences between its current weightless environment and on the ground, where all its testing was performed," said Nic Radford, Robonaut deputy project manager. "This successful completion now sets the stage for Robonaut to start proving out its utility for the crew."

Initiating motion in the robot required much interaction between personnel on the ground and the crew on station. Commands were initiated both from the ground and aboard the station to put the robot into motion. Fossum commanded the robot aboard the station, but in the end, the ground controllers initiated a script that put Robonaut into its stowage configuration.

Robonaut 2’s arms now have been put into motion aboard the station, but its hands have yet to be tested. That checkout is planned for next month. Since the robot can impart forces on its environment when it grasps objects, sensor systems that measure these forces in the hand first need to be checked out.

In its current configuration, Robonaut 2 has a head, torso, arms and super-dexterous hands, but it does not have legs or feet. Instead, it is attached using a stanchion to hold it in place. It is about 3 feet, 4 inches (1.01 meters) tall and weighs about 330 pounds (150 kilograms).

Robonaut 2 is the first humanoid robot ever to fly in space. It was built by NASA as part of a joint project with General Motors. The goal is to build a robot helper suitable to assist humans in complex tasks, be they in space or on Earth.


http://www.nasa.gov/mission_pages/station/main/robonaut_feature_firstmotions.html
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From ISS On-Orbit Status Report for 18/10/2011.

In the US Lab, with the "upstream" DDCU (DC/DC Converter Unit) B powered down yesterday for safing, CDR Mike Fossum today Removed & Replaced (R&Rd) the failed RPCM (Remote Power Control Module) LA1B-H. [The ~3hr IFM (Inflight Maintenance) required safing steps, rotating the MELFI-3 (Minus Eighty Laboratory Freezer for ISS-3) rack at Lab Starboard 1 down for access after demating its umbilicals, removing the shear panel in front of SPDA (Secondary Power Distribution Assembly) at LA1B, then removing the failed RPCM and replacing it with a new spare. The following close-out operation reversed the activities. The temporarily deactivated Lab UOP-6 (Utility Outlet Panel-6) will be powered up before sleeptime. The successful R&R recovers the Lab smoke detector (LABPD1). Ground teams are currently in the process of recovering the powered down LA1B loads.]
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Re: Expedition 29 thread (September 16 - November 22, 2011)
« Reply #63 on: 10/19/2011 04:59 PM »
Reboost of ISS orbit was successfully performed today.

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From ISS On-Orbit Status Report for 19/10/2011.

Reboost Update:
The planned one-burn reboost of the ISS was performed nominally at 4:15 PM GMT, using the two KD engines of the SM's (Service Module's) ODU (Integrated Propulsion System), with a target delta-V of 1.8 m/s (5.9 ft/s).
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From ISS On-Orbit Status Report for 20/10/2011.

FE-5 Satoshi Furukawa spent most of his working day on major troubleshooting of the failed GHF (Gradient Heating Furnace) on the Kobairo Rack in the JAXA JPM (JEM Pressurized Module), necessary to resume the GHF experiment. [Two anomalous overcurrent events of the GHF Central Heater occurred on 04/12/11 & 04/20/11. Suspected cause of the short circuit was inadvertent contact between a lock wire and a heater flange, or an incorrect position of the End Heater with respect to the Central Heater. Satoshi's troubleshooting involved inspection of the End Heater unit and cartridge, checking the lock wire position of the new Central Heater and fix it if needed, attaching heater harnesses and servicing GHF-MPU. Today's work, with documentary HD video-shooting, focused on the lock wire of the GHF Central Heater, reconfiguring the JLP HCTL (JEM Logistics Pressurized Segment | Heater Controller) power jumper (W3002), replacing the Central Heater in the GHF MPU (Material Processing Unit) with a new unit, connecting two thermocouple harnesses to the Central Heater and vacuum-cleaning the GHF End Heater. Afterwards, the GHF MPU access door was closed temporarily (more work is scheduled tomorrow).]

Plaque Hanging:
At 6:30 PM GMT, the traditional official plaque hanging took place in ISS Mission Control/Houston for the Inc-28 Plaque with crew participation.

ISS Reboost Update:
Yesterday’s ISS reboost by the two KD engines of the SM's (Service Module's) ODU (Integrated Propulsion System) was performed on time (4:15 PM GMT) with a burn duration of 1 min 53 sec, yielding a delta-V of 1.86 m/s / 6.1 ft/s (planned: 1.80/5.9). Mean altitude gain: 3.24 km (1.75 nmi). ISS now is at a mean altitude of 388 km (209.5 nmi), with ~400 km (216 nmi) apogee & 376 km (203 nmi) perigee height. Purpose of the reboost was to set up phasing for Progress M-13M/45P launch, Soyuz TMA-22/28S launch, and Soyuz TMA-02M/27S landing.

Conjunction Alert:
Flight controllers are tracking a new conjunction with Object #27700 (H-2A Rocket Body). TCA (Time of Closest Approach): 10/22 (Saturday), 10:31 PM GMT. The object is in a fairly circular orbit, large and well tracked which should provide stable tracking data throughout this event. If DAM (Debris Avoidance Maneuver) planning is required, the Go/No-Go for firing table (cyclogram) development will be tomorrow (10/21) at 11:01 PM GMT, for an estimated DAM TIG (Time of Ignition) on 10/22 at 8:13 PM GMT.
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From ISS On-Orbit Status Report for 21/10/2011.

In the JAXA JPM (JEM Pressurized Module), FE-5 Satoshi Furukawa again spent several hours on the troubleshooting IFM (Inflight Maintenance) of the failed GHF (Gradient Heating Furnace) on the Kobairo Rack, assisted in part by CDR Mike Fossum. [Two anomalous overcurrent events of the GHF Central Heater occurred on 04/12/11 & 04/20/11. Suspected cause of the short circuit was inadvertent contact between a lock wire and a heater flange, or an incorrect position of the End Heater with respect to the Central Heater. Today's work consisted of Satoshi photo documenting the two thermocouple harnesses of the Central Heater, taking measurements of the distance between the GHF End and Central Heaters, and cleaning the MPU (Material Processing Unit) with wet wipes and vacuum cleaner. Afterwards, the GHF MPU access door was shut, the GHF Cartridge cleaned of any contamination and the SCAM (Sample Cartridge Automatic exchange Mechanism) front door closed. Mike Fossum assisted with the USB camera operation and the lighting for the GHF thermocouple harness photography.]
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Offline rdale

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Re: Expedition 29 thread (September 16 - November 22, 2011)
« Reply #67 on: 10/22/2011 03:21 PM »
Talking blood and puzzles on this morning's Weekly Planning Conference! http://www.kevin-cohen.com/nsf/iss/iss_20111022-080000-001.wav

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From ISS On-Orbit Status Report for 22/10/2011.

Conjunction 1 Update:
The conjunction with Object #27700 (H-2A Rocket Body) at 10:31 PM GMT tonight now has a collision probability of Zero, requiring no action. Flight controllers continue to monitor subsequent tracking updates.

Conjunction 2 Alert:
Flight controllers are tracking a second conjunction, with Object #30917 (Fengyun 1C debris). TCA (Time of Closest Approach): Sunday 10/23, 12:26 PM GMT. This event is a Low concern and no action is expected at this time, although flight controllers will continue to assess updates. A DAM (Debris Avoidance Maneuver), if required, would be scheduled at 10:08 AM tomorrow morning.
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From ISS On-Orbit Status Report for 23/10/2011.

Conjunction 2 Update:
The conjunction with Object #30917 (Fengyun 1C debris) at 12:26 PM GMT this morning stayed outside the area of concern and required no action.

CSL SSC Troubleshooting:
After the crew yesterday worked the discretionary task list item of recovering the hard drives of CSL (Crew Support LAN) laptops, ground specialists got varying results on "pinging" SSC-13 (no response), SSC-17 (good response), SSC-21 (good response). Using the new SWRDFSH (Swordfish) software update, SSC-17 (Station Support Computer-17) remained unresponsive while SSC-21 reported good connection (except for the Ultrabay drive transferred from the original failed SSC-20).
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From ISS On-Orbit Status Report for 24/10/2011.

JAXA Marangoni Experiment:
The crew was advised of another Marangoni bridge building event tonight (11:00 PM-5:00 AM GMT), the 17th in 24 planned bridge buildings in Increment 29/30. The experiment is performed in the Kibo JPM during crew sleep (since the liquid bridge to be formed is sensitive to g-jitter), 4 days/week at most and 24 runs in total. After the liquid bridge has been formed, the ground imposes a temperature gradient on it to produce Marangoni convection. The crew, which is being informed regularly, has been asked to avoid any disturbances in this timeframe. Even disturbances in other modules can be transmitted and cause the liquid bridge in JPM to break up, resulting in science loss.
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Offline robertross

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Re: Expedition 29 thread (September 16 - November 22, 2011)
« Reply #71 on: 10/24/2011 11:03 PM »
From ISS On-Orbit Status Report for 24/10/2011.

JAXA Marangoni Experiment:
The crew was advised of another Marangoni bridge building event tonight (11:00 PM-5:00 AM GMT), the 17th in 24 planned bridge buildings in Increment 29/30. The experiment is performed in the Kibo JPM during crew sleep (since the liquid bridge to be formed is sensitive to g-jitter), 4 days/week at most and 24 runs in total. After the liquid bridge has been formed, the ground imposes a temperature gradient on it to produce Marangoni convection. The crew, which is being informed regularly, has been asked to avoid any disturbances in this timeframe. Even disturbances in other modules can be transmitted and cause the liquid bridge in JPM to break up, resulting in science loss.

"...that means no urine dumps, just bag it"  ;)
Go Orbital!

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Re: Expedition 29 thread (September 16 - November 22, 2011)
« Reply #72 on: 10/25/2011 07:43 AM »
Information from MCC-M about reboost of ISS orbit's on October 26: 12:52 UTC, dV = 1.82 m/s, dT = 114 s, dH = 3.2 km.

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From ISS On-Orbit Status Report for 25/10/2011.

CDR Mike Fossum had ~4h15m allotted for the major IFM (Inflight Maintenance) of removing the MCA VGA (Major Constituent Analyzer | Verification Gas Assembly) from the AR-1 (Atmosphere Revitalization-1) rack in the US Lab and installing it instead in Node 3 in AR-2. [The MSA (Mass Spectrometer Assembly) and DCA (Data & Control Assembly) have already been removed from the LAB MCA.]

Reboost:
Another one-burn reboost of the ISS will be performed tomorrow morning at 12:52 PM GMT, using the two KD engines of the SM's (Service Module's) ODU (Integrated Propulsion System) for a burn duration of 1m 54s and a planned Delta-V of 1.82 m/s (5.97 ft/s). The purpose of the reboost is to set up phasing for Progress M-13M/45P launch, Soyuz TMA-22/28S launch, and Soyuz TMA-02M/27S landing.
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From ISS On-Orbit Status Report for 26/10/2011.

JAXA Marangoni Experiment:
The crew was advised of another Marangoni bridge building event tonight (11:00 PM-5:00 AM GMT), the 19th in 24 planned bridge buildings in Increment 29/30. The experiment is performed in the Kibo JPM during crew sleep (since the liquid bridge to be formed is sensitive to g-jitter), 4 days/week at most and 24 runs in total. After the liquid bridge has been formed, the ground imposes a temperature gradient on it to produce Marangoni convection. The crew, which is being informed regularly, has been asked to avoid any disturbances in this timeframe. Even disturbances in other modules can be transmitted and cause the liquid bridge in JPM to break up, resulting in science loss.

ISS Reboost Update:
This morning's ISS reboost by the two KD engines of the SM's (Service Module's) ODU (Integrated Propulsion System) was performed on time (12:52 PM GMT) with a burn duration of 1 min 54 sec, yielding a delta-V of 1.90 m/s/6.2 ft/s (planned: 1.82/5.9). Mean altitude gain: 3.20 km (1.73 nmi). ISS was afterwards at a mean altitude of 390.0 km (210.6 nmi), with 404.8 km (218.6 nmi) apogee & 375.2 km (202.6 nmi) perigee height. Attitude control authority handover from US Momentum Management to Russian MCS (Motion Control System) was at 11:15 AM GMT and its return at 1:30 PM GMT. No actual maneuver was required for the reboost which was performed in TEA (Torque Equilibrium Attitude). Purpose of the reboost was to set up phasing for Progress M-13M/45P launch, Soyuz TMA-22/28S launch, and Soyuz TMA-02M/27S landing.
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