NASA International Space Station On-Orbit Status 12 August 2015

NASA astronaut Scott Kelly (left) assists Japan Aerospace Exploration Agency (JAXA) astronaut Kimiya Yui (right) with measurements for the ongoing Ocular Health study. Credit NASA.

The International Space Station experienced a temporary power loss Tuesday night while backup systems maintained power to critical systems. Power was restored quickly and there were no impacts to station operations and the six-member crew was always safe.

Astronauts Kjell Lindgren and Kimiya Yui are training for the robotic capture next week of Japan's fifth "Kounotori" HTV cargo ship (HTV-5). The HTV-5 will launch from Japan's Tanegashima Space Center Sunday morning and take a four day trip to the station. The duo will be inside the cupola Aug. 20 to capture the HTV-5 with the Canadarm2. Lindgren also checked on U.S. spacewalk tools while Yui cleaned and inventoried gear inside the Japanese Kibo lab module.

Cosmonauts Gennady Padalka and Mikhail Kornienko are cleaning up after Tuesday's 5-hour, 31-minute spacewalk. The cosmonauts also talked to Russian spacewalk specialists on the ground Wednesday about the previous day's external activities.

On-Orbit Status Report

Direct Current Switching Unit (DCSU) 4A Power On Reset (POR): Tuesday evening at 6:10 pm CDT DCSU-4A experienced a POR. Power was lost to 3 downstream Direct Current-to-Direct Current Converter Units (DDCUs) plus the DDCU on the P4 Integrated Equipment Assembly (IEA). Service Module voltage and current stabilizers [CHT]s 23 and 24 also lost power but [CHT]s 21 and 22 were still available resulting in only a small power deficit to the Russian segment. Of the 3 DDCUs, all were in paralleled pairs, but Parallel Input Undervoltage Protection (PIUV) was enabled for the Node 3 pair, meaning the 1B4A bus lost all power. The loads that lost power included: 4A Pump Flow and Control Subsystem (PFCS), Permanent Multipurpose Module (PMM), Treadmill 2, Hub Control Zone 1 Multiplexer/Demultiplexer (HCZ-1 MDM), Node3-1 MDM, Oxygen Generator System (OGS), Node3 Common Cabin Air Assembly (CCAA), Node3 Moderate Temperature Loop (MTL), Node3 Carbon Dioxide Removal Assembly (CDRA), and [CHT]s 23 and 24. The crew was woken up and, with the loss of the CCAA, were prime for smoke detection in Node 3 and the PMM. Ground teams review the DCSU 4A data and found no indications of hardware problems. Ground teams are still in the process of recovering and reconfiguring Environmental Control and Life Support Systems (ECLSS). Teams have had some issues recovering the Node 3 CDRA. Lab CDRA has been activated in the interim while teams continue troubleshooting.

HRP Operations: Kelly and Kornienko performed a Reaction Self-Test upon wake-up and prior to sleep. Kelly completed Observation #10 of the Habitability study and his FD 135 Integrated Resistance and Aerobic Training Study (Sprint) Volume of Oxygen Utilized (VO2) Max session.

- Reaction Self-Test aids crewmembers to objectively identify when their performance capability is degraded by various fatigue-related conditions that can occur as a result of ISS operations and time in space (e.g., acute and chronic sleep restriction, slam shifts, extravehicular activity (EVA), and residual sedation from sleep medications).

- Habitability assesses the relationship between crew members and their environment in order to better prepare for future long-duration spaceflights to destinations, such as Near Earth Asteroids (NEA) and Mars. The ultimate goal is to understand how much habitable volume is required for vehicle internal design and layout, and if mission duration impacts the volume needed.

- Kelly performed his Sprint exercise session on the Cycle Ergometer with Vibration Isolation and Stabilization (CEVIS). The Sprint investigation evaluates the use of high intensity, low volume exercise training to minimize loss of muscle, bone, and cardiovascular function in ISS crewmembers during long-duration missions. Upon completion of this study, investigators expect to provide an integrated resistance and aerobic exercise training protocol capable of maintaining muscle, bone and cardiovascular health while reducing total exercise time over the course of a long-duration space flight.

Synchronized Position Hold, Engage, Reorient, Experimental Satellites (SPHERES) Zero Robotics Preparations: Kononenko completed an On-Board Training (OBT) and procedure review in advance of the Zero Robotics Dry-Run scheduled for tomorrow. The SPHERES Zero Robotics investigation establishes an opportunity for high school students to design research for the ISS. As part of a competition, students write algorithms for the SPHERES satellites to accomplish tasks relevant to future space missions. The algorithms are tested by the SPHERES team and the best designs are selected for the competition to operate the SPHERES satellites on board the ISS.

Radi-N Neutron Field Study (Radi-N): Kononenko handed over the eight Radi-N detectors to Lindgren who deployed them around the ISS. The objective of this investigation is to better characterize the ISS neutron environment and define the risk posed to crewmembers' health and provide the data necessary to develop advanced protective measures for future space flight.

On-board Training (OBT) H-II Transfer Vehicle (HTV) Robotics Onboard Trainer (ROBoT) Session 1: In preparation for HTV5 arrival scheduled on August 20, Lindgren, Yui and Kelly participated in this training session. The crew practiced a 30 meter approach and two Capture Point hold runs.

Japanese Experiment Module (JEM) Pressurized Module (JPM)1F2 Activities: In preparation for the Multi-purpose Small Payload Rack (MSPR) arriving on HTV5 and subsequent installation, Lindgren relocated items stowed in the JPM1F2. Then Yui removed the hard dummy panel and JEM blue stowage rack, replaced the Active Rack Isolation System (ARIS) pivot fitting bottom and installed a soft dummy panel.

Mobile Servicing System (MSS) Operations: Today, the Robotics Ground Controllers powered up the Mobile Serving System (MSS) and translated the Mobile Transporter (MT) from Worksite 4 (WS4) to WS5. Prior to the translation they continued the MSS Checkouts in preparation for HTV5 capture on GMT 232 (20 Aug 15). MSS performance today was nominal.

Today's Planned Activities
All activities were completed unless otherwise noted.

Reaction Time Test (morning)
SPRINT - Hardware Warmup
ISS Crew / SSIPC FD Conference
Countermeasures System (CMS) - Heart Rate Monitor Battery Changeout
Formaldehyde Monitoring Kit (FMK) Deployment Ops
CMS - HRM - iPAD Configuration
GSC Sampling Operations
SPRINT Experiment Ops
JEM - Relocating JPM1F2 Stowage
SPVO2 Cleaning and Relocation
Gas Analyzer О2 Readings Adjustments
Comm Config prior to MRM1 Ops
MRM1 ГК2 Replaceable Unit (БС) R&R r/g 9589
PAO Crew Prep / r/g 9598
JEM - Hard Dummy Panel (HDP) Removal
TV-session with Vesty Show Host r/g 9598
Installation of ЗУ-С charger No.13010004
Mating telemetry connectors to ЗУ-С
Set up the first Orlan-MK battery pack for discharge and start discharging the first pack
JEM - Blue Stowage Rack JBSR Removal from JPM1F2
SEISMOPROGNOZ. Downlink data from Control and Data Acquisition Module r/g 9013
JEM - PIVOT Fitting Replacement
Closing USOS Window Shutters
HABIT - Hardware Activation
JEM - Soft Dummy Panel (SDP) Installation
Restoring Nominal Comm Configuration
EVA-41 Debrief. (S-band, VHF)
OBT - On-board Training (OBT) HTV Robotics Onboard Trainer (ROBoT) Session 1
SPHERES Crew Conference
IFM Node 3 Deck Starboard IMV Cleaning
ALGOMETRIA. Experiment Ops / r/g 9591
NAPOR-miniRSA. Cleaning БЗУ-М Ventilation Vents / r/g 9593
Setup Disassembly and REMOTE RS LAPTOP stowage (Remote SM CP work station) / r/g 9559
ALGOMETRIA. Experiment Ops / r/g 9590
MATRYOSHKA-R. Gathering and Initialization of Bubble-Dosimeter Detectors. / r/g 9597
SEISMOPROGNOZ. Download data from Control and Data Acquisition Module (МКСД) HDD (end) and start backup
MATRYOSHKA-R. Handover of BUBBLE-dosimeters to USOS / r/g 9597
RADIN - Radiation Dosimetry Inside ISS-Neutrons Hardware Handover from the Russian Crew
MATRYOSHKA-R. BUBBLE-dosimeter initialization and deployment. / r/g 9597
RADIN - Deployment of detectors
IMS Tagup
VEG - Hardware Removal
SPVO2 Power Switch OFF
CONTENT. Experiment Ops / r/g 9592
Increment 43 Plaque Hanging
Self-Reaction Test. Reaction Time Test (evening)

Completed Task List Items
N1 Galley Rack Prep

Ground Activities
All activities were completed unless otherwise noted.

OASIS video
Mobile Transporter (MT) Translation
DCSU 4A POR Recovery

Three-Day Look Ahead:
Thursday, 08/13: SPRINT VO2 ops, SPHERES ZR setup, OBT HTV offset grapple, SPA Vent hose install
Friday, 08/14: 58P undock, SPHERES ZR ops, EMU 3003 and 3010 Loop Scrub, HAPTICS-2 ops
Saturday, 08/15: Removal of non-trash items from N2 forward endcone

QUICK ISS Status - Environmental Control Group:

Component - Status
Elektron - On
Vozdukh - Manual
[СКВ] 1 - SM Air Conditioner System ("SKV1") - On
[СКВ] 2 - SM Air Conditioner System ("SKV2") - Off
Carbon Dioxide Removal Assembly (CDRA) Lab - Operate
Carbon Dioxide Removal Assembly (CDRA) Node 3 - Inoperable
Major Constituent Analyzer (MCA) Lab - Shutdown
Major Constituent Analyzer (MCA) Node 3 - Activation In Work
Oxygen Generation Assembly (OGA) - Process
Urine Processing Assembly (UPA) - Standby
Trace Contaminant Control System (TCCS) Lab - Off
Trace Contaminant Control System (TCCS) Node 3 - Warm Up

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